Workspace.java revision bbaa75c8c432c46c00ee2eb836e438b3774d6709
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
79e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        implements DropTarget, DragSource, DragScroller, View.OnTouchListener,
80e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        View.OnClickListener {
81e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy    @SuppressWarnings({"UnusedDeclaration"})
823a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    private static final String TAG = "Launcher.Workspace";
830142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
84dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    // This is how much the workspace shrinks when we enter all apps or
85dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    // customization mode
86dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    private static final float SHRINK_FACTOR = 0.16f;
87a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
88d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    // How much the screens shrink when we enter spring loaded drag mode
89d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    private static final float SPRING_LOADED_DRAG_SHRINK_FACTOR = 0.7f;
90d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
91f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    // Y rotation to apply to the workspace screens
92f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    private static final float WORKSPACE_ROTATION = 12.5f;
93a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
94a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    // These are extra scale factors to apply to the mini home screens
95a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    // so as to achieve the desired transform
961b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen    private static final float EXTRA_SCALE_FACTOR_0 = 0.972f;
97a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    private static final float EXTRA_SCALE_FACTOR_1 = 1.0f;
981b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen    private static final float EXTRA_SCALE_FACTOR_2 = 1.10f;
99a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
10068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0;
10168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375;
1029171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100;
103f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
104f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung    private static final int BACKGROUND_FADE_OUT_DURATION = 350;
1059171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private static final int BACKGROUND_FADE_IN_DURATION = 350;
1069171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1079171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    // These animators are used to fade the children's outlines
1089171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private ObjectAnimator mChildrenOutlineFadeInAnimation;
1099171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private ObjectAnimator mChildrenOutlineFadeOutAnimation;
1109171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private float mChildrenOutlineAlpha = 0;
1119171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1129171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    // These properties refer to the background protection gradient used for AllApps and Customize
113e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka    private ValueAnimator mBackgroundFadeInAnimation;
114e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka    private ValueAnimator mBackgroundFadeOutAnimation;
1159171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private Drawable mBackground;
1168d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private Drawable mCustomizeTrayBackground;
11725356e75ebae5d6e0be43f38d2c73b5cb59d05f2Michael Jurka    boolean mDrawBackground = true;
1188d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private boolean mDrawCustomizeTrayBackground;
119f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    private float mBackgroundAlpha = 0;
12068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private float mOverScrollMaxBackgroundAlpha = 0.0f;
121e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen    private int mOverScrollPageIndex = -1;
122f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
12388127038178b3bbf0eb91103a31e682cc0615074Winson Chung    private View mCustomizationDrawer;
12488127038178b3bbf0eb91103a31e682cc0615074Winson Chung    private View mCustomizationDrawerContent;
12588127038178b3bbf0eb91103a31e682cc0615074Winson Chung    private int[] mCustomizationDrawerPos = new int[2];
12688127038178b3bbf0eb91103a31e682cc0615074Winson Chung    private float[] mCustomizationDrawerTransformedPos = new float[2];
12788127038178b3bbf0eb91103a31e682cc0615074Winson Chung
1288f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    private final WallpaperManager mWallpaperManager;
1299c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    private IBinder mWindowToken;
130aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1310142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    private int mDefaultPage;
13231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
133d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    private boolean mIsDragInProcess = false;
13421f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen
13531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
13631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * CellInfo for the cell that is currently being dragged
13731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
13831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private CellLayout.CellInfo mDragInfo;
139aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
14070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
14170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Target drop area calculated during last acceptDrop call.
14270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
14370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTargetCell = null;
14431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1456569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy    /**
1466569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy     * The CellLayout that is currently being dragged over
1476569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy     */
1486569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy    private CellLayout mDragTargetLayout = null;
1496569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
15031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private Launcher mLauncher;
1510589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato    private IconCache mIconCache;
15200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    private DragController mDragController;
153aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1544516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    // These are temporary variables to prevent having to allocate a new object just to
1554516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    // return an (x, y) value from helper functions. Do NOT use them to maintain other state.
15631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int[] mTempCell = new int[2];
15770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTempEstimate = new int[2];
1580280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    private float[] mTempOriginXY = new float[2];
159a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    private float[] mTempDragCoordinates = new float[2];
1604516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private float[] mTempTouchCoordinates = new float[2];
1614516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private float[] mTempCellLayoutCenterCoordinates = new float[2];
162a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    private float[] mTempDragBottomRightCoordinates = new float[2];
1630280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    private Matrix mTempInverseMatrix = new Matrix();
16431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
165c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka    private SpringLoadedDragController mSpringLoadedDragController;
166d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
167d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen    private static final int DEFAULT_CELL_COUNT_X = 4;
168d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen    private static final int DEFAULT_CELL_COUNT_Y = 4;
16931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1708a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    private Drawable mPreviousIndicator;
1718a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    private Drawable mNextIndicator;
172aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1731262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    // State variable that indicates whether the pages are small (ie when you're
174dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    // in all apps or customize mode)
175c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka    private boolean mIsSmall = false;
176c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka    private boolean mIsInUnshrinkAnimation = false;
177bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka    private AnimatorListener mShrinkAnimationListener;
178b8e14479da7209ca811a753b3256fe4a0b49a873Michael Jurka    private AnimatorListener mUnshrinkAnimationListener;
179af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    enum ShrinkState { TOP, SPRING_LOADED, MIDDLE, BOTTOM_HIDDEN, BOTTOM_VISIBLE };
180af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private ShrinkState mShrinkState;
181d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    private boolean mWasSpringLoadedOnDragExit = false;
182883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka    private boolean mWaitingToShrink = false;
183af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private ShrinkState mWaitingToShrinkState;
1843c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka    private AnimatorSet mAnimator;
185dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
18654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy    /** Is the user is dragging an item near the edge of a page? */
1871262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    private boolean mInScrollArea = false;
1881262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
18954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy    /** If mInScrollArea is true, the direction of the scroll. */
19054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy    private int mPendingScrollDirection = DragController.SCROLL_NONE;
19154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
1928e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper();
1934be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap mDragOutline = null;
1948e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final Rect mTempRect = new Rect();
1958e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final int[] mTempXY = new int[2];
1964be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
197cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    private ValueAnimator mDropAnim = null;
198cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    private TimeInterpolator mQuintEaseOutInterpolator = new DecelerateInterpolator(2.5f);
199cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    private View mDropView = null;
200cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    private int[] mDropViewPos = new int[] { -1, -1 };
201cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
202a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    // Paint used to draw external drop outline
203a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    private final Paint mExternalDragOutlinePaint = new Paint();
204a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2056b879f0a5885274a85333531e091283405d490ccAdam Lesinski    // Camera and Matrix used to determine the final position of a neighboring CellLayout
2066b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final Matrix mMatrix = new Matrix();
2076b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final Camera mCamera = new Camera();
2086b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final float mTempFloat2[] = new float[2];
2096b879f0a5885274a85333531e091283405d490ccAdam Lesinski
210c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM };
211c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    int mWallpaperWidth;
212c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    int mWallpaperHeight;
213ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    WallpaperOffsetInterpolator mWallpaperOffset;
214c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    boolean mUpdateWallpaperOffsetImmediately = false;
215ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    boolean mSyncWallpaperOffsetWithScroll = true;
216c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
2170bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    // info about the last drag
2180bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private DragView mLastDragView;
2190bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private int mLastDragOriginX;
2200bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private int mLastDragOriginY;
2210bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private int mLastDragXOffset;
2220bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private int mLastDragYOffset;
2230bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka
224f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget)
225f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    private float mXDown;
226f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    private float mYDown;
227f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6;
228f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3;
229f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float TOUCH_SLOP_DAMPING_FACTOR = 4;
230f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
23131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
23231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
23331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
23431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
2350142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka     * @param attrs The attributes set containing the Workspace's customization values.
23631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
23731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs) {
23831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        this(context, attrs, 0);
23931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
24031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
24131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
24231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
24331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
24431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
2450142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka     * @param attrs The attributes set containing the Workspace's customization values.
24631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param defStyle Unused.
24731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
24831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs, int defStyle) {
24931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super(context, attrs, defStyle);
2500142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mContentIsRefreshable = false;
2515f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
2525f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        if (!LauncherApplication.isScreenXLarge()) {
2535f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            mFadeInAdjacentScreens = false;
2545f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
25531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2568f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn        mWallpaperManager = WallpaperManager.getInstance(context);
257aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
258aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        TypedArray a = context.obtainStyledAttributes(attrs,
259aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                R.styleable.Workspace, defStyle, 0);
260d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen        int cellCountX = a.getInt(R.styleable.Workspace_cellCountX, DEFAULT_CELL_COUNT_X);
261d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen        int cellCountY = a.getInt(R.styleable.Workspace_cellCountY, DEFAULT_CELL_COUNT_Y);
2620142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1);
26331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        a.recycle();
26431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
265d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen        LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY);
2660d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato        setHapticFeedbackEnabled(false);
2670142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
26831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        initWorkspace();
269c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung
270c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung        // Disable multitouch across the workspace/all apps/customize tray
271c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung        setMotionEventSplittingEnabled(true);
27231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
27331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
27431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
27531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Initializes various states for this workspace.
27631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
2770142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void initWorkspace() {
2780589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        Context context = getContext();
2790142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mCurrentPage = mDefaultPage;
2800142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
2810589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        LauncherApplication app = (LauncherApplication)context.getApplicationContext();
2820589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        mIconCache = app.getIconCache();
283a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        mExternalDragOutlinePaint.setAntiAlias(true);
284cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        setWillNotDraw(false);
28531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
286b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        try {
287b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            final Resources res = getResources();
288b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            mBackground = res.getDrawable(R.drawable.all_apps_bg_gradient);
2898d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            mCustomizeTrayBackground = res.getDrawable(R.drawable.customize_bg_gradient);
290b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        } catch (Resources.NotFoundException e) {
291b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            // In this case, we will skip drawing background protection
292b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        }
2939171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
2948edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka        mUnshrinkAnimationListener = new AnimatorListenerAdapter() {
2953c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            @Override
296c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            public void onAnimationStart(Animator animation) {
297c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka                mIsInUnshrinkAnimation = true;
298c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            }
2990bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka
3003c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            @Override
3018edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka            public void onAnimationEnd(Animator animation) {
302c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka                mIsInUnshrinkAnimation = false;
303ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mSyncWallpaperOffsetWithScroll = true;
3040bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                if (mShrinkState == ShrinkState.SPRING_LOADED) {
3050bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                    View layout = null;
3060bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                    if (mLastDragView != null) {
3070bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                        layout = findMatchingPageForDragOver(mLastDragView, mLastDragOriginX,
3080bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                                mLastDragOriginY, mLastDragXOffset, mLastDragYOffset);
3090bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                    }
3100bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                    mSpringLoadedDragController.onEnterSpringLoadedMode(layout == null);
3110bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                } else {
312a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung                    mDrawCustomizeTrayBackground = false;
313a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung                }
314ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
31560b7c53ccc6384b65aaca77d97794e8f09e8cfc8Patrick Dubroy                mAnimator = null;
316ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka                enableChildrenLayers(false);
317bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            }
318bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka        };
319bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka        mShrinkAnimationListener = new AnimatorListenerAdapter() {
320bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            @Override
321ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            public void onAnimationStart(Animator animation) {
322ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka                enableChildrenLayers(true);
323ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            }
324ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            @Override
325bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            public void onAnimationEnd(Animator animation) {
326ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
32760b7c53ccc6384b65aaca77d97794e8f09e8cfc8Patrick Dubroy                mAnimator = null;
328dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka            }
329dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        };
3300142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mSnapVelocity = 600;
331ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset = new WallpaperOffsetInterpolator();
33231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
33331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
33431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
335f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    protected int getScrollMode() {
336f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        if (LauncherApplication.isScreenXLarge()) {
337e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen            return SmoothPagedView.X_LARGE_MODE;
338f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        } else {
339e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen            return SmoothPagedView.DEFAULT_MODE;
340f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
341f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
342f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
343f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    @Override
34431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index, LayoutParams params) {
34531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
34631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
34731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
34821f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
349e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setOnClickListener(this);
350e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setClickable(true);
35131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index, params);
35231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
35331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
35431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
35531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child) {
35631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
35731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
35831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
35921f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
360e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setOnClickListener(this);
361e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setClickable(true);
36231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child);
36331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
36431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
36531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
36631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index) {
36731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
36831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
36931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
37021f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
371e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setOnClickListener(this);
372e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setClickable(true);
37331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index);
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, int width, int height) {
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);
382e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setOnClickListener(this);
383e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setClickable(true);
38431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, width, height);
38531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
38631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
38731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
38831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, LayoutParams params) {
38931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
39031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
39131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
39221f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
393e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setOnClickListener(this);
394e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        child.setClickable(true);
39531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, params);
39631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
39731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
39831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
39931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return The open folder on the current screen, or null if there is none
40031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
40131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    Folder getOpenFolder() {
4026e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung        ViewGroup currentPage = ((CellLayout) getChildAt(mCurrentPage)).getChildrenLayout();
4030142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        int count = currentPage.getChildCount();
40431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
4050142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            View child = currentPage.getChildAt(i);
406aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            if (child instanceof Folder) {
407aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                Folder folder = (Folder) child;
408aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                if (folder.getInfo().opened)
409aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    return folder;
41031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
41131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
41231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
41331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
41431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
41531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    ArrayList<Folder> getOpenFolders() {
416dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
417dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        ArrayList<Folder> folders = new ArrayList<Folder>(screenCount);
41831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
419dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int screen = 0; screen < screenCount; screen++) {
4206e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            ViewGroup currentPage = ((CellLayout) getChildAt(screen)).getChildrenLayout();
4210142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            int count = currentPage.getChildCount();
42231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
4230142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                View child = currentPage.getChildAt(i);
424aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                if (child instanceof Folder) {
425aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    Folder folder = (Folder) child;
426aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    if (folder.getInfo().opened)
427aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                        folders.add(folder);
42831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    break;
42931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
43031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
43131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
43231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return folders;
43331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
43431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
435a0aa0121b91fde17e427ab2763ce312e64cf5d33Patrick Dubroy    boolean isTouchActive() {
436a0aa0121b91fde17e427ab2763ce312e64cf5d33Patrick Dubroy        return mTouchState != TOUCH_STATE_REST;
43731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
43831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
43931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
44031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
44131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
44231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
44331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
44431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
44531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
44631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
44731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
44831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
44931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
45031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY) {
45131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, screen, x, y, spanX, spanY, false);
45231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
45331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
454aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    void addInFullScreen(View child, int screen) {
455aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        addInScreen(child, screen, 0, 0, -1, -1);
456aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    }
457aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
45831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
45931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
46031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
46131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
46231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
46331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
46431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
46531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
46631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
46731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
46831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param insert When true, the child is inserted at the beginning of the children list.
46931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
47031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY, boolean insert) {
47131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (screen < 0 || screen >= getChildCount()) {
472291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler            Log.e(TAG, "The screen must be >= 0 and < " + getChildCount()
473291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler                + " (was " + screen + "); skipping child");
474291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler            return;
47531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
47631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
47731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout group = (CellLayout) getChildAt(screen);
47831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
47931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (lp == null) {
48031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
48131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
48231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellX = x;
48331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellY = y;
48431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellHSpan = spanX;
48531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellVSpan = spanY;
48631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
487aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
4886569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        // Get the canonical child id to uniquely represent this view in this screen
489845ba3b17b83a2b11d79c6fb076cf96ab4a737dfMichael Jurka        int childId = LauncherModel.getCellLayoutChildId(-1, screen, x, y, spanX, spanY);
490f3ca3ab6958b104cbf2c2fa04add97d372a94d1cMichael Jurka        boolean markCellsAsOccupied = !(child instanceof Folder);
491f3ca3ab6958b104cbf2c2fa04add97d372a94d1cMichael Jurka        if (!group.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) {
492aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // TODO: This branch occurs when the workspace is adding views
493aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // outside of the defined grid
4946569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy            // maybe we should be deleting these items from the LauncherModel?
495aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout");
496aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        }
497aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
49831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof Folder)) {
4990d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato            child.setHapticFeedbackEnabled(false);
50031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            child.setOnLongClickListener(mLongClickListener);
50131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
50200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        if (child instanceof DropTarget) {
503aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            mDragController.addDropTarget((DropTarget) child);
50400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        }
50531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
50631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
507d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    /**
508d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy     * Check if the point (x, y) hits a given page.
509d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy     */
510d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    private boolean hitsPage(int index, float x, float y) {
511d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final View page = getChildAt(index);
512d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        if (page != null) {
513d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            float[] localXY = { x, y };
514d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            mapPointFromSelfToChild(page, localXY);
515d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            return (localXY[0] >= 0 && localXY[0] < page.getWidth()
516d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy                    && localXY[1] >= 0 && localXY[1] < page.getHeight());
517d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        }
518d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return false;
519d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
520d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
521d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    @Override
522d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    protected boolean hitsPreviousPage(float x, float y) {
523d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // mNextPage is set to INVALID_PAGE whenever we are stationary.
524d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // Calculating "next page" this way ensures that you scroll to whatever page you tap on
525d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
526d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return hitsPage(current - 1, x, y);
527d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
528d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
529d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    @Override
530d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    protected boolean hitsNextPage(float x, float y) {
531d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // mNextPage is set to INVALID_PAGE whenever we are stationary.
532d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // Calculating "next page" this way ensures that you scroll to whatever page you tap on
533d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
534d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return hitsPage(current + 1, x, y);
535d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
536d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
537e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    /**
538e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * Called directly from a CellLayout (not by the framework), after we've been added as a
539e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout
540e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * that it should intercept touch events, which is not something that is normally supported.
541e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     */
542e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    @Override
543dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    public boolean onTouch(View v, MotionEvent event) {
544e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        return (mIsSmall || mIsInUnshrinkAnimation);
545e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    }
546e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy
547e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    /**
548e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * Handle a click event on a CellLayout.
549e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     */
550e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    @Override
551e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    public void onClick(View cellLayout) {
552e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        // Only allow clicks on a CellLayout if it is shrunken and visible.
553e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        if ((mIsSmall || mIsInUnshrinkAnimation) && mShrinkState != ShrinkState.BOTTOM_HIDDEN) {
554e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy            mLauncher.onWorkspaceClick((CellLayout) cellLayout);
555dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
5560e26059548e429e5d1c973bebe4c561bead2926fMichael Jurka    }
5570e26059548e429e5d1c973bebe4c561bead2926fMichael Jurka
558ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen    protected void onWindowVisibilityChanged (int visibility) {
559ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen        mLauncher.onWindowVisibilityChanged(visibility);
560ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen    }
561ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen
5625f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    @Override
5635f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    public boolean dispatchUnhandledMove(View focused, int direction) {
564c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
5655f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            // when the home screens are shrunken, shouldn't allow side-scrolling
5665f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            return false;
5675f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
5685f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        return super.dispatchUnhandledMove(focused, direction);
5695f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    }
5705f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
5715f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    @Override
5725f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    public boolean onInterceptTouchEvent(MotionEvent ev) {
573f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
574f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen            mXDown = ev.getX();
575f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen            mYDown = ev.getY();
576f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        }
577f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
578c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
579e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy            if (mLauncher.isAllAppsVisible() && mShrinkState == ShrinkState.BOTTOM_HIDDEN) {
5806b879f0a5885274a85333531e091283405d490ccAdam Lesinski                // Intercept this event so we can show the workspace in full view
5816b879f0a5885274a85333531e091283405d490ccAdam Lesinski                // when it is clicked on and it is small
582be9093426aec3a6d412811a12d2400e645613242Adam Cohen                AllAppsPagedView allApps = (AllAppsPagedView)
583be9093426aec3a6d412811a12d2400e645613242Adam Cohen                        mLauncher.findViewById(R.id.all_apps_paged_view);
584be9093426aec3a6d412811a12d2400e645613242Adam Cohen                if (allApps != null) {
585be9093426aec3a6d412811a12d2400e645613242Adam Cohen                    allApps.onInterceptTouchEvent(ev);
586be9093426aec3a6d412811a12d2400e645613242Adam Cohen                }
5876b879f0a5885274a85333531e091283405d490ccAdam Lesinski                return true;
5886b879f0a5885274a85333531e091283405d490ccAdam Lesinski            }
5895f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            return false;
5905f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
5915f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        return super.onInterceptTouchEvent(ev);
5925f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    }
5935f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
5941adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    @Override
5951adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    protected void determineScrollingStart(MotionEvent ev) {
59669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen        if (!mIsSmall && !mIsInUnshrinkAnimation) {
59769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float deltaX = Math.abs(ev.getX() - mXDown);
59869c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float deltaY = Math.abs(ev.getY() - mYDown);
599f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
60069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (Float.compare(deltaX, 0f) == 0) return;
601f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
60269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float slope = deltaY / deltaX;
60369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float theta = (float) Math.atan(slope);
604f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
60569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (deltaX > mTouchSlop || deltaY > mTouchSlop) {
60669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                cancelCurrentPageLongPress();
60769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            }
608f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
60969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (theta > MAX_SWIPE_ANGLE) {
61069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace
61169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                return;
61269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) {
61369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to
61469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // increase the touch slop to make it harder to begin scrolling the workspace. This
61569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // results in vertically scrolling widgets to more easily. The higher the angle, the
61669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // more we increase touch slop.
61769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                theta -= START_DAMPING_TOUCH_SLOP_ANGLE;
61869c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                float extraRatio = (float)
61969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                        Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE)));
62069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio);
62169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            } else {
62269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special
62369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                super.determineScrollingStart(ev);
62469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            }
625f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        }
6261adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    }
6271adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka
6281262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    protected void onPageBeginMoving() {
6290142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (mNextPage != INVALID_PAGE) {
6300142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // we're snapping to a particular screen
63116fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka            enableChildrenCache(mCurrentPage, mNextPage);
6320142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        } else {
6330142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // this is when user is actively dragging a particular screen, they might
6340142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // swipe it either left or right (but we won't advance by more than one screen)
63516fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka            enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1);
63631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
637f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        showOutlines();
63831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
63931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6401262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    protected void onPageEndMoving() {
64116fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka        clearChildrenCache();
6421262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        // Hide the outlines, as long as we're not dragging
6431262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        if (!mDragController.dragging()) {
6441262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy            hideOutlines();
6451262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
64668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        mOverScrollMaxBackgroundAlpha = 0.0f;
647e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen        mOverScrollPageIndex = -1;
6480142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
6490142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
6500142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
6510142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void notifyPageSwitchListener() {
6520142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.notifyPageSwitchListener();
6530142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
6540142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (mPreviousIndicator != null) {
6550142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // if we know the next page, we show the indication for it right away; it looks
6560142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // weird if the indicators are lagging
6570142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            int page = mNextPage;
6580142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            if (page == INVALID_PAGE) {
6590142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                page = mCurrentPage;
6600142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            }
6610142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            mPreviousIndicator.setLevel(page);
6620142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            mNextIndicator.setLevel(page);
6630142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        }
6640142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
6650142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    };
6660142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
667c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // As a ratio of screen height, the total distance we want the parallax effect to span
668c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // vertically
669c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private float wallpaperTravelToScreenHeightRatio(int width, int height) {
670c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return 1.1f;
671c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
672c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
673c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // As a ratio of screen height, the total distance we want the parallax effect to span
674c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // horizontally
675c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private float wallpaperTravelToScreenWidthRatio(int width, int height) {
676c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        float aspectRatio = width / (float) height;
677c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
678c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
679c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
680c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We will use these two data points to extrapolate how much the wallpaper parallax effect
681c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // to span (ie travel) at any aspect ratio:
682c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
683c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float ASPECT_RATIO_LANDSCAPE = 16/10f;
684c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float ASPECT_RATIO_PORTRAIT = 10/16f;
685c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
686c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
687c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
688c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // To find out the desired width at different aspect ratios, we use the following two
689c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // formulas, where the coefficient on x is the aspect ratio (width/height):
690c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        //   (16/10)x + y = 1.5
691c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        //   (10/16)x + y = 1.2
692c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We solve for x and y and end up with a final formula:
693c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float x =
694c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
695c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
696c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
697c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return x * aspectRatio + y;
698c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
699c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
700c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // The range of scroll values for Workspace
701c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private int getScrollRange() {
702c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return getChildOffset(getChildCount() - 1) - getChildOffset(0);
703c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
704c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
705c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    protected void setWallpaperDimension() {
706c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
707c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final int maxDim = Math.max(display.getWidth(), display.getHeight());
708c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final int minDim = Math.min(display.getWidth(), display.getHeight());
709c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
710c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We need to ensure that there is enough extra space in the wallpaper for the intended
711c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // parallax effects
712c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
713c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim));
714f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung        new Thread("setWallpaperDimension") {
715f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung            public void run() {
716f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung                mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight);
717f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung            }
718f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung        }.start();
719c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
720c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
721ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public void setVerticalWallpaperOffset(float offset) {
722ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset.setFinalY(offset);
723ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
724ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public float getVerticalWallpaperOffset() {
725ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return mWallpaperOffset.getCurrY();
726ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
727ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public void setHorizontalWallpaperOffset(float offset) {
728ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset.setFinalX(offset);
729ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
730ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public float getHorizontalWallpaperOffset() {
731ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return mWallpaperOffset.getCurrX();
732c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
733c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
734ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private float wallpaperOffsetForCurrentScroll() {
735ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
736ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // The wallpaper travel width is how far, from left to right, the wallpaper will move
737ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // at this orientation (for example, in portrait mode we don't move all the way to the
738ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // edges of the wallpaper, or otherwise the parallax effect would be too strong)
739ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        int wallpaperTravelWidth = (int) (display.getWidth() *
740ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight()));
741ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
742ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // Set wallpaper offset steps (1 / (number of screens - 1))
743ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // We have 3 vertical offset states (centered, and then top/bottom aligned
744ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // for all apps/customize)
745ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1));
746ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
74709d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        int scrollRange = getScrollRange();
74809d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        float scrollProgressOffset = 0;
74909d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka
75009d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // Account for overscroll: you only see the absolute edge of the wallpaper if
75109d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // you overscroll as far as you can in landscape mode. Only do this for static wallpapers
75209d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset
75309d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1])
75409d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null);
75509d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        if (isStaticWallpaper) {
75609d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            int overscrollOffset = (int) (maxOverScroll() * display.getWidth());
75709d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            scrollProgressOffset += overscrollOffset / (float) getScrollRange();
75809d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            scrollRange += 2 * overscrollOffset;
75909d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        }
76009d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka
761ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float scrollProgress =
76209d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            mScrollX / (float) scrollRange + scrollProgressOffset;
763ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offsetInDips = wallpaperTravelWidth * scrollProgress +
764ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            (mWallpaperWidth - wallpaperTravelWidth) / 2;
765ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offset = offsetInDips / (float) mWallpaperWidth;
766ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return offset;
767ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
768ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private void syncWallpaperOffsetWithScroll() {
769340c5f3a708efa280a120708594247952ca65182Michael Jurka        if (LauncherApplication.isScreenXLarge()) {
770ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll());
771c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        }
772c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
773c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
774c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    public void updateWallpaperOffsetImmediately() {
775c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mUpdateWallpaperOffsetImmediately = true;
776c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
777c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
778ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private void updateWallpaperOffsets() {
779ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        boolean updateNow = false;
780ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        boolean keepUpdating = true;
781ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (mUpdateWallpaperOffsetImmediately) {
782ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateNow = true;
783ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            keepUpdating = false;
784ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mWallpaperOffset.jumpToFinal();
785ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mUpdateWallpaperOffsetImmediately = false;
786c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        } else {
787ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset();
788ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
789ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (updateNow) {
7909c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            if (mWindowToken != null) {
7919c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka                mWallpaperManager.setWallpaperOffsets(mWindowToken,
792ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                        mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY());
793ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
794ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
795ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (keepUpdating) {
7962763be3150d429d338b9848286e9365b4052c100Michael Jurka            fastInvalidate();
797956091ba7863bd72086275e61084864994dd6fa7Joe Onorato        }
798ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
799ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
800ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    class WallpaperOffsetInterpolator {
801ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mFinalHorizontalWallpaperOffset = 0.0f;
802ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mFinalVerticalWallpaperOffset = 0.5f;
803ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mHorizontalWallpaperOffset = 0.0f;
804ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mVerticalWallpaperOffset = 0.5f;
805ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        long mLastWallpaperOffsetUpdateTime;
806ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean mIsMovingFast;
807ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean mOverrideHorizontalCatchupConstant;
808ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        float mHorizontalCatchupConstant = 0.35f;
809ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        float mVerticalCatchupConstant = 0.35f;
810ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
811ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public WallpaperOffsetInterpolator() {
812ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
813ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
814ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setOverrideHorizontalCatchupConstant(boolean override) {
815ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mOverrideHorizontalCatchupConstant = override;
816ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
817ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
818ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setHorizontalCatchupConstant(float f) {
819ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mHorizontalCatchupConstant = f;
820ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
821ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
822ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setVerticalCatchupConstant(float f) {
823ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mVerticalCatchupConstant = f;
824ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
825ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
826ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public boolean computeScrollOffset() {
827ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 &&
828ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                    Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) {
829ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mIsMovingFast = false;
830ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                return false;
831ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
832ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            Display display = mLauncher.getWindowManager().getDefaultDisplay();
833ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            boolean isLandscape = display.getWidth() > display.getHeight();
834ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
835ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            long currentTime = System.currentTimeMillis();
836ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime;
837ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate);
838ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate);
839ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
840ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset);
841ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            if (!mIsMovingFast && xdiff > 0.07) {
842ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mIsMovingFast = true;
843ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
844ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
845ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float fractionToCatchUpIn1MsHorizontal;
846ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            if (mOverrideHorizontalCatchupConstant) {
847ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant;
848ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else if (mIsMovingFast) {
849ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f;
850ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else {
851ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // slow
852ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f;
853ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
854ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant;
855ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
856ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
857ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            fractionToCatchUpIn1MsHorizontal /= 33f;
858ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            fractionToCatchUpIn1MsVertical /= 33f;
859ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
860ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            final float UPDATE_THRESHOLD = 0.00001f;
861ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset;
862ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset;
863ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD &&
864ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                Math.abs(vOffsetDelta) < UPDATE_THRESHOLD;
865ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (jumpToFinalValue) {
866ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
867ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
868ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            } else {
869ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                float percentToCatchUpVertical =
870ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical);
871ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                float percentToCatchUpHorizontal =
872ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal);
873ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta;
874ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta;
875ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
876ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
877ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mLastWallpaperOffsetUpdateTime = System.currentTimeMillis();
878ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return true;
879ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
880ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
881ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getCurrX() {
882ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mHorizontalWallpaperOffset;
883ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
884ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
885ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getFinalX() {
886ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mFinalHorizontalWallpaperOffset;
887ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
888ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
889ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getCurrY() {
890ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mVerticalWallpaperOffset;
891ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
892ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
893ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getFinalY() {
894ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mFinalVerticalWallpaperOffset;
895ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
896ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
897ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void setFinalX(float x) {
898ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f));
899ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
900ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
901ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void setFinalY(float y) {
902ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f));
903ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
904ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
905ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void jumpToFinal() {
906ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
907ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
908ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
9098f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    }
910aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
911340c5f3a708efa280a120708594247952ca65182Michael Jurka    @Override
912340c5f3a708efa280a120708594247952ca65182Michael Jurka    public void computeScroll() {
913340c5f3a708efa280a120708594247952ca65182Michael Jurka        super.computeScroll();
914ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (mSyncWallpaperOffsetWithScroll) {
915ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            syncWallpaperOffsetWithScroll();
916ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
917340c5f3a708efa280a120708594247952ca65182Michael Jurka    }
918340c5f3a708efa280a120708594247952ca65182Michael Jurka
91994f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    void showOutlines() {
9203e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
9219171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
9229171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
9239171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f);
9249171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION);
9259171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation.start();
9263e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
927f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
928f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
92994f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    void hideOutlines() {
9303e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
9319171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
9329171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
9339171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f);
9349171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION);
9359171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY);
9369171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.start();
9373e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
938f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
939f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
94094f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    public void showOutlinesTemporarily() {
94194f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy        if (!mIsPageMoving && !isTouchActive()) {
94294f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy            snapToPage(mCurrentPage);
94394f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy        }
94494f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    }
94594f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy
9469171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public void setChildrenOutlineAlpha(float alpha) {
9479171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mChildrenOutlineAlpha = alpha;
948f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        for (int i = 0; i < getChildCount(); i++) {
949f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            CellLayout cl = (CellLayout) getChildAt(i);
950f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            cl.setBackgroundAlpha(alpha);
951f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
952f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
953f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
9549171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public float getChildrenOutlineAlpha() {
9559171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        return mChildrenOutlineAlpha;
9569171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9579171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
9589c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    void disableBackground() {
9599c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDrawBackground = false;
9609c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
9619c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    void enableBackground() {
9629c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDrawBackground = true;
9639c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
9649c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka
965760e5375f003accf04f789e90a919ed476d4c335Winson Chung    private void showBackgroundGradientForAllApps() {
966760e5375f003accf04f789e90a919ed476d4c335Winson Chung        showBackgroundGradient();
967760e5375f003accf04f789e90a919ed476d4c335Winson Chung        mDrawCustomizeTrayBackground = false;
968760e5375f003accf04f789e90a919ed476d4c335Winson Chung    }
969760e5375f003accf04f789e90a919ed476d4c335Winson Chung
9708d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private void showBackgroundGradientForCustomizeTray() {
9718d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung        showBackgroundGradient();
9728d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung        mDrawCustomizeTrayBackground = true;
9738d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    }
9748d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
9758d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private void showBackgroundGradient() {
976b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground == null) return;
9779171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel();
9789171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel();
979e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeInAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), 1f);
980e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeInAnimation.addUpdateListener(new AnimatorUpdateListener() {
981e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            public void onAnimationUpdate(ValueAnimator animation) {
982e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka                setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
983e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            }
984e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        });
985f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung        mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
9869171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION);
9879171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeInAnimation.start();
9889171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9899171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
9908d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private void hideBackgroundGradient() {
991b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground == null) return;
9929171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel();
9939171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel();
994e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), 0f);
995e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() {
996e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            public void onAnimationUpdate(ValueAnimator animation) {
997e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka                setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
998e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            }
999e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        });
1000f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung        mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
10019171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION);
10029171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeOutAnimation.start();
10039171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
10049171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
10059171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public void setBackgroundAlpha(float alpha) {
10069c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        if (alpha != mBackgroundAlpha) {
10079c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            mBackgroundAlpha = alpha;
10089c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            invalidate();
10099c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        }
10109171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
10119171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1012f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    public float getBackgroundAlpha() {
1013f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        return mBackgroundAlpha;
1014f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
1015f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
10166b879f0a5885274a85333531e091283405d490ccAdam Lesinski    /**
10176b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * Due to 3D transformations, if two CellLayouts are theoretically touching each other,
10186b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived
10196b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * as being larger. This method computes what offset the rotated view should be translated
10206b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * in order to minimize this perceived gap.
10216b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param degrees Angle of the view
10226b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param width Width of the view
10236b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param height Height of the view
10246b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @return Offset to be used in a View.setTranslationX() call
10256b879f0a5885274a85333531e091283405d490ccAdam Lesinski     */
10266b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private float getOffsetXForRotation(float degrees, int width, int height) {
10276b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.reset();
10286b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.save();
10296b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.rotateY(Math.abs(degrees));
10306b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.getMatrix(mMatrix);
10316b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.restore();
10326b879f0a5885274a85333531e091283405d490ccAdam Lesinski
10336b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.preTranslate(-width * 0.5f, -height * 0.5f);
10346b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.postTranslate(width * 0.5f, height * 0.5f);
10356b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mTempFloat2[0] = width;
10366b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mTempFloat2[1] = height;
10376b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.mapPoints(mTempFloat2);
10386b879f0a5885274a85333531e091283405d490ccAdam Lesinski        return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f);
10396b879f0a5885274a85333531e091283405d490ccAdam Lesinski    }
10406b879f0a5885274a85333531e091283405d490ccAdam Lesinski
104168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    float backgroundAlphaInterpolator(float r) {
104268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        float pivotA = 0.1f;
104368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        float pivotB = 0.4f;
104468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        if (r < pivotA) {
104568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return 0;
104668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else if (r > pivotB) {
104768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return 1.0f;
104868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else {
104968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return (r - pivotA)/(pivotB - pivotA);
105068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        }
105168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    }
105268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
105368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    float overScrollBackgroundAlphaInterpolator(float r) {
1054e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen        float threshold = 0.08f;
105568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
105668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        if (r > mOverScrollMaxBackgroundAlpha) {
105768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            mOverScrollMaxBackgroundAlpha = r;
105868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else if (r < mOverScrollMaxBackgroundAlpha) {
105968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            r = mOverScrollMaxBackgroundAlpha;
106068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        }
106168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
106268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        return Math.min(r / threshold, 1.0f);
106368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    }
106468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
1065f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    @Override
1066f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    protected void screenScrolled(int screenCenter) {
106721f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        final int halfScreenSize = getMeasuredWidth() / 2;
106868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
106921f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        for (int i = 0; i < getChildCount(); i++) {
10701b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen            CellLayout cl = (CellLayout) getChildAt(i);
10711b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen            if (cl != null) {
1072d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing;
107321f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                int delta = screenCenter - (getChildOffset(i) -
107421f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                        getRelativeChildOffset(i) + halfScreenSize);
1075f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1076ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen                float scrollProgress = delta / (totalDistance * 1.0f);
107721f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                scrollProgress = Math.min(scrollProgress, 1.0f);
107821f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                scrollProgress = Math.max(scrollProgress, -1.0f);
1079f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1080e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                // If the current page (i) is being overscrolled, we use a different
1081e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                // set of rules for setting the background alpha multiplier.
1082e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX &&
1083e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                        i == getChildCount() -1 )) {
1084e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    cl.setBackgroundAlphaMultiplier(
1085e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                            overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress)));
1086e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    mOverScrollPageIndex = i;
1087e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                } else if (mOverScrollPageIndex != i) {
1088e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    cl.setBackgroundAlphaMultiplier(
1089e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                            backgroundAlphaInterpolator(Math.abs(scrollProgress)));
1090e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                }
10911b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen
109221f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                float rotation = WORKSPACE_ROTATION * scrollProgress;
10936b879f0a5885274a85333531e091283405d490ccAdam Lesinski                float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight());
10946b879f0a5885274a85333531e091283405d490ccAdam Lesinski                cl.setTranslationX(translationX);
109568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
10961b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen                cl.setRotationY(rotation);
1097f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            }
1098f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
1099f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
1100f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
110100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    protected void onAttachedToWindow() {
110200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        super.onAttachedToWindow();
11039c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mWindowToken = getWindowToken();
1104956091ba7863bd72086275e61084864994dd6fa7Joe Onorato        computeScroll();
11059c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDragController.setWindowToken(mWindowToken);
11069c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
11079c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka
11089c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    protected void onDetachedFromWindow() {
11099c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mWindowToken = null;
111000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    }
111100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato
111231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
111328750fba6a2d141eb9a1e566718c17236030b815Michael Jurka    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
1114c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) {
1115c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            mUpdateWallpaperOffsetImmediately = true;
1116c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        }
11170142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.onLayout(changed, left, top, right, bottom);
1118aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
111979212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        // if shrinkToBottom() is called on initialization, it has to be deferred
112079212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        // until after the first call to onLayout so that it has the correct width
1121883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        if (mWaitingToShrink) {
1122696a67969d657d38eff33996633f08da0e21841fAdam Cohen            // shrink can trigger a synchronous onLayout call, so we
1123696a67969d657d38eff33996633f08da0e21841fAdam Cohen            // post this to avoid a stack overflow / tangled onLayout calls
1124696a67969d657d38eff33996633f08da0e21841fAdam Cohen            post(new Runnable() {
1125696a67969d657d38eff33996633f08da0e21841fAdam Cohen                public void run() {
1126696a67969d657d38eff33996633f08da0e21841fAdam Cohen                    shrink(mWaitingToShrinkState, false);
1127696a67969d657d38eff33996633f08da0e21841fAdam Cohen                    mWaitingToShrink = false;
1128696a67969d657d38eff33996633f08da0e21841fAdam Cohen                }
1129696a67969d657d38eff33996633f08da0e21841fAdam Cohen            });
113079212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        }
113179212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka
1132aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        if (LauncherApplication.isInPlaceRotationEnabled()) {
1133aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // When the device is rotated, the scroll position of the current screen
1134aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // needs to be refreshed
11350142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            setCurrentPage(getCurrentPage());
1136aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        }
113731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
113831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
113931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
11409171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    protected void onDraw(Canvas canvas) {
1141ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        updateWallpaperOffsets();
1142c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
11439171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        // Draw the background gradient if necessary
11449c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) {
11458d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            int alpha = (int) (mBackgroundAlpha * 255);
11468d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            if (mDrawCustomizeTrayBackground) {
114788127038178b3bbf0eb91103a31e682cc0615074Winson Chung                // Find out where to offset the gradient for the customization tray content
114888127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mCustomizationDrawer.getLocationOnScreen(mCustomizationDrawerPos);
114988127038178b3bbf0eb91103a31e682cc0615074Winson Chung                final Matrix m = mCustomizationDrawer.getMatrix();
115088127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mCustomizationDrawerTransformedPos[0] = 0.0f;
115188127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mCustomizationDrawerTransformedPos[1] = mCustomizationDrawerContent.getTop();
115288127038178b3bbf0eb91103a31e682cc0615074Winson Chung                m.mapPoints(mCustomizationDrawerTransformedPos);
115388127038178b3bbf0eb91103a31e682cc0615074Winson Chung
1154760e5375f003accf04f789e90a919ed476d4c335Winson Chung                // Draw the bg glow behind the gradient
1155760e5375f003accf04f789e90a919ed476d4c335Winson Chung                mCustomizeTrayBackground.setAlpha(alpha);
1156760e5375f003accf04f789e90a919ed476d4c335Winson Chung                mCustomizeTrayBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(),
1157760e5375f003accf04f789e90a919ed476d4c335Winson Chung                        getMeasuredHeight());
1158760e5375f003accf04f789e90a919ed476d4c335Winson Chung                mCustomizeTrayBackground.draw(canvas);
1159760e5375f003accf04f789e90a919ed476d4c335Winson Chung
116088127038178b3bbf0eb91103a31e682cc0615074Winson Chung                // Draw the bg gradient
116188127038178b3bbf0eb91103a31e682cc0615074Winson Chung                final int  offset = (int) (mCustomizationDrawerPos[1] +
116288127038178b3bbf0eb91103a31e682cc0615074Winson Chung                        mCustomizationDrawerTransformedPos[1]);
1163ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                mBackground.setAlpha(alpha);
116488127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mBackground.setBounds(mScrollX, offset, mScrollX + getMeasuredWidth(),
116588127038178b3bbf0eb91103a31e682cc0615074Winson Chung                        offset + getMeasuredHeight());
116688127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mBackground.draw(canvas);
1167ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung            } else {
1168ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                mBackground.setAlpha(alpha);
1169ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(),
1170ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                        getMeasuredHeight());
1171ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                mBackground.draw(canvas);
11728d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            }
11739171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        }
11749171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        super.onDraw(canvas);
11759171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
11769171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
11779171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    @Override
11780142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void dispatchDraw(Canvas canvas) {
1179c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
11800142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // Draw all the workspaces if we're small
11810142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            final int pageCount = getChildCount();
11820142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            final long drawingTime = getDrawingTime();
11830142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            for (int i = 0; i < pageCount; i++) {
11840142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                final View page = (View) getChildAt(i);
11852763be3150d429d338b9848286e9365b4052c100Michael Jurka                if (page.getVisibility() == VISIBLE && page.getAlpha() != 0f) {
11862763be3150d429d338b9848286e9365b4052c100Michael Jurka                    drawChild(canvas, page, drawingTime);
11872763be3150d429d338b9848286e9365b4052c100Michael Jurka                }
11880142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            }
11890142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        } else {
11900142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.dispatchDraw(canvas);
1191cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
11920207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            final int width = getWidth();
11930207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            final int height = getHeight();
11940207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
11950207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            // In portrait orientation, draw the glowing edge when dragging to adjacent screens
11960207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            if (mInScrollArea && (height > width)) {
11970207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                final int pageHeight = getChildAt(0).getHeight();
11980207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
11990207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                // This determines the height of the glowing edge: 90% of the page height
12000207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f);
12010207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
12020207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1);
12030207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1);
12040207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
120533945b21544bc98381df17726a3537c292d8c985Michael Jurka                if (leftPage != null && leftPage.getIsDragOverlapping()) {
12060207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    final Drawable d = getResources().getDrawable(R.drawable.page_hover_left);
12070207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding);
12080207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    d.draw(canvas);
120933945b21544bc98381df17726a3537c292d8c985Michael Jurka                } else if (rightPage != null && rightPage.getIsDragOverlapping()) {
12100207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    final Drawable d = getResources().getDrawable(R.drawable.page_hover_right);
12110207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding);
12120207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    d.draw(canvas);
12130207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                }
12140207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            }
12150207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
1216cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            if (mDropView != null) {
12178ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy                // We are animating an item that was just dropped on the home screen.
12188ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy                // Render its View in the current animation position.
1219cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                canvas.save(Canvas.MATRIX_SAVE_FLAG);
1220cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                final int xPos = mDropViewPos[0] - mDropView.getScrollX();
1221cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                final int yPos = mDropViewPos[1] - mDropView.getScrollY();
1222cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                canvas.translate(xPos, yPos);
1223cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mDropView.draw(canvas);
1224cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                canvas.restore();
1225cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
122631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
122731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
122831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
122931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
123031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
1231678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
123231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
123331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (openFolder != null) {
123431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return openFolder.requestFocus(direction, previouslyFocusedRect);
123531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
12360142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                return super.onRequestFocusInDescendants(direction, previouslyFocusedRect);
123731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
123831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
123931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return false;
124031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
124131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
124231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
1243c2e24c0a37ddeab930f731c062705d435e477f75Romain Guy    public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
1244678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
124531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
12460142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            if (openFolder != null) {
124731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                openFolder.addFocusables(views, direction);
12480142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            } else {
12490142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                super.addFocusables(views, direction, focusableMode);
125031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
125131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
125231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
125331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
125431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
12557bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    public boolean dispatchTouchEvent(MotionEvent ev) {
12567bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
125754dd75463d0eb47c2f468e19063bdc4141dfdf74Michael Jurka            // (In XLarge mode, the workspace is shrunken below all apps, and responds to taps
125854dd75463d0eb47c2f468e19063bdc4141dfdf74Michael Jurka            // ie when you click on a mini-screen, it zooms back to that screen)
12596b4adbc0558fcebbd44998bd00dcd334ddbee32dJoe Onorato            if (!LauncherApplication.isScreenXLarge() && mLauncher.isAllAppsVisible()) {
12607bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato                return false;
12617bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato            }
12627bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        }
12636b879f0a5885274a85333531e091283405d490ccAdam Lesinski
12647bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        return super.dispatchTouchEvent(ev);
12657bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    }
12667bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato
12670142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    void enableChildrenCache(int fromPage, int toPage) {
12680142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (fromPage > toPage) {
12690142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            final int temp = fromPage;
12700142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            fromPage = toPage;
12710142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            toPage = temp;
12723a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        }
1273aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1274dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1275fea5d0250767ab938f623a404e6292a32dd2fdf5Adam Powell
12760142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        fromPage = Math.max(fromPage, 0);
12770142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        toPage = Math.min(toPage, screenCount - 1);
1278fea5d0250767ab938f623a404e6292a32dd2fdf5Adam Powell
12790142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        for (int i = fromPage; i <= toPage; i++) {
128031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
128131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(true);
128231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawingCacheEnabled(true);
128331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
128431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
128531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
128631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void clearChildrenCache() {
1287dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1288dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
128931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
129031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(false);
129131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
129231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
129331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
129431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
129531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean onTouchEvent(MotionEvent ev) {
1296be9093426aec3a6d412811a12d2400e645613242Adam Cohen        AllAppsPagedView allApps = (AllAppsPagedView)
1297be9093426aec3a6d412811a12d2400e645613242Adam Cohen                mLauncher.findViewById(R.id.all_apps_paged_view);
12986b879f0a5885274a85333531e091283405d490ccAdam Lesinski
1299be9093426aec3a6d412811a12d2400e645613242Adam Cohen        if (mLauncher.isAllAppsVisible() && mShrinkState == ShrinkState.BOTTOM_HIDDEN
1300be9093426aec3a6d412811a12d2400e645613242Adam Cohen                && allApps != null) {
1301be9093426aec3a6d412811a12d2400e645613242Adam Cohen            if (ev.getAction() == MotionEvent.ACTION_UP &&
1302be9093426aec3a6d412811a12d2400e645613242Adam Cohen                    allApps.getTouchState() == TOUCH_STATE_REST) {
13036b879f0a5885274a85333531e091283405d490ccAdam Lesinski
1304be9093426aec3a6d412811a12d2400e645613242Adam Cohen                // Cancel any scrolling that is in progress.
1305be9093426aec3a6d412811a12d2400e645613242Adam Cohen                if (!mScroller.isFinished()) {
1306be9093426aec3a6d412811a12d2400e645613242Adam Cohen                    mScroller.abortAnimation();
1307be9093426aec3a6d412811a12d2400e645613242Adam Cohen                }
1308be9093426aec3a6d412811a12d2400e645613242Adam Cohen                setCurrentPage(mCurrentPage);
130931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1310be9093426aec3a6d412811a12d2400e645613242Adam Cohen                if (mShrinkState == ShrinkState.BOTTOM_HIDDEN) {
1311be9093426aec3a6d412811a12d2400e645613242Adam Cohen                    mLauncher.showWorkspace(true);
1312be9093426aec3a6d412811a12d2400e645613242Adam Cohen                }
1313be9093426aec3a6d412811a12d2400e645613242Adam Cohen                allApps.onTouchEvent(ev);
1314be9093426aec3a6d412811a12d2400e645613242Adam Cohen                return true;
1315be9093426aec3a6d412811a12d2400e645613242Adam Cohen            } else {
1316be9093426aec3a6d412811a12d2400e645613242Adam Cohen                return allApps.onTouchEvent(ev);
1317be9093426aec3a6d412811a12d2400e645613242Adam Cohen            }
1318be9093426aec3a6d412811a12d2400e645613242Adam Cohen        }
13190142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        return super.onTouchEvent(ev);
132031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
1321aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1322ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void enableChildrenLayers(boolean enable) {
1323ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        for (int i = 0; i < getPageCount(); i++) {
1324a7f801fc5b5715223e868ed599da69c5edf436eeMichael Jurka            ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enable);
1325ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        }
1326ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1327ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    @Override
1328ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void pageBeginMoving() {
1329ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        enableChildrenLayers(true);
1330ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        super.pageBeginMoving();
1331ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1332ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka
1333ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    @Override
1334ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void pageEndMoving() {
1335ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
1336ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            enableChildrenLayers(false);
1337ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        }
1338ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        super.pageEndMoving();
1339ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1340ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka
13411d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    @Override
13421d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    protected void onWallpaperTap(MotionEvent ev) {
13431d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        final int[] position = mTempCell;
13441d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        getLocationOnScreen(position);
13451d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
13461d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        int pointerIndex = ev.getActionIndex();
13471d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        position[0] += (int) ev.getX(pointerIndex);
13481d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        position[1] += (int) ev.getY(pointerIndex);
13491d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
13501d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        mWallpaperManager.sendWallpaperCommand(getWindowToken(),
13511d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                ev.getAction() == MotionEvent.ACTION_UP
13521d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                        ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP,
13531d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                position[0], position[1], 0, null);
13541d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    }
13551d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
135601f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka    public boolean isSmall() {
135701f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka        return mIsSmall;
135801f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka    }
135901f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka
1360a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    private float getYScaleForScreen(int screen) {
1361a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        int x = Math.abs(screen - 2);
1362a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1363a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // TODO: This should be generalized for use with arbitrary rotation angles.
1364a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        switch(x) {
1365a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 0: return EXTRA_SCALE_FACTOR_0;
1366a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 1: return EXTRA_SCALE_FACTOR_1;
1367a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 2: return EXTRA_SCALE_FACTOR_2;
1368a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        }
1369a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        return 1.0f;
1370a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    }
1371a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1372af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    public void shrink(ShrinkState shrinkState) {
1373af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        shrink(shrinkState, true);
1374af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    }
13759171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
13763c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka    private int getCustomizeDrawerHeight() {
13773c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        TabHost customizationDrawer = mLauncher.getCustomizationDrawer();
13783c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        int height = customizationDrawer.getHeight();
13793c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        TabWidget tabWidget = (TabWidget)
13803c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            customizationDrawer.findViewById(com.android.internal.R.id.tabs);
13813c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        if (tabWidget.getTabCount() > 0) {
13823c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            TextView tabText = (TextView) tabWidget.getChildTabViewAt(0);
13833c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            // subtract the empty space above the tab text
13843c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            height -= ((tabWidget.getHeight() - tabText.getLineHeight())) / 2;
13853c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        }
13863c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        return height;
13873c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka    }
13883c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka
1389af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    // we use this to shrink the workspace for the all apps view and the customize view
1390af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    public void shrink(ShrinkState shrinkState, boolean animated) {
13914c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // In the launcher interaction model, we're never in the state where we're shrunken and
13924c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // visible in the bottom of the screen, and then want to fade to being invisible.
13934c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // After spring loaded mode ends, this method was getting called twice, the first time
13944c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // with BOTTOM_VISIBLE (what we want) and a second time with BOTTOM_INVISIBLE (not
13954c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // what we want). As a temporary solution, we just change the second call to BOTTOM_VISIBLE
13964c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        if (mIsSmall && mShrinkState == ShrinkState.BOTTOM_VISIBLE) {
13974c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka            shrinkState = ShrinkState.BOTTOM_VISIBLE;
13984c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        }
1399883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        if (mFirstLayout) {
1400883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // (mFirstLayout == "first layout has not happened yet")
1401883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // if we get a call to shrink() as part of our initialization (for example, if
1402883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // Launcher is started in All Apps mode) then we need to wait for a layout call
1403883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // to get our width so we can layout the mini-screen views correctly
1404883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            mWaitingToShrink = true;
1405af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka            mWaitingToShrinkState = shrinkState;
1406883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            return;
1407883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        }
14083e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        // Stop any scrolling, move to the current page right away
1409a997ac26664befbd0d5b172e36ef9e8b2c63b435Michael Jurka        setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage);
1410d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        if (!mIsDragInProcess) {
14110dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            updateWhichPagesAcceptDrops(shrinkState);
1412d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        }
14133e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
14141b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen        CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage);
14150dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        if (currentPage == null) {
14160dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage
14170dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy                    + " mNextPage " + mNextPage);
14180dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            return;
14190dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        }
1420ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen        if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) {
1421ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen            currentPage.setBackgroundAlpha(0.0f);
1422ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen        }
14231b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen        currentPage.setBackgroundAlphaMultiplier(1.0f);
14241b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen
14250dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mIsSmall = true;
14260dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mShrinkState = shrinkState;
14270dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy
14280dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        // we intercept and reject all touch events when we're small, so be sure to reset the state
14290dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mTouchState = TOUCH_STATE_REST;
14300dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mActivePointerId = INVALID_POINTER;
14310dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy
14327247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroy        final Resources res = getResources();
1433dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenWidth = getWidth();
1434213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka        final int screenHeight = getHeight();
14350142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
14360142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        // Making the assumption that all pages have the same width as the 0th
14370142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int pageWidth = getChildAt(0).getMeasuredWidth();
14380142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int pageHeight = getChildAt(0).getMeasuredHeight();
14390142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
14400142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int scaledPageWidth = (int) (SHRINK_FACTOR * pageWidth);
14410142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int scaledPageHeight = (int) (SHRINK_FACTOR * pageHeight);
1442a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing);
1443dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1444dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1445a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing;
1446213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka
1447df4b83dd9d6380ab963c62d1f9d1312efc87cb0fWinson Chung        boolean isPortrait = getMeasuredHeight() > getMeasuredWidth();
1448742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        float y = (isPortrait ?
1449ef0066b52d2754ca0553ec79613c650b5649afaaWinson Chung                getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) :
1450ef0066b52d2754ca0553ec79613c650b5649afaaWinson Chung                getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape));
14513e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        float finalAlpha = 1.0f;
14523e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        float extraShrinkFactor = 1.0f;
1453f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
1454af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        if (shrinkState == ShrinkState.BOTTOM_VISIBLE) {
1455742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka             y = screenHeight - y - scaledPageHeight;
1456af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        } else if (shrinkState == ShrinkState.BOTTOM_HIDDEN) {
14573e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            // We shrink and disappear to nothing in the case of all apps
14583e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            // (which is when we shrink to the bottom)
1459742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            y = screenHeight - y - scaledPageHeight;
14606b879f0a5885274a85333531e091283405d490ccAdam Lesinski            finalAlpha = 0.0f;
1461af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        } else if (shrinkState == ShrinkState.MIDDLE) {
1462742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            y = screenHeight / 2 - scaledPageHeight / 2;
1463b0b2e6f588367cf40a4270cca81af7d78f8e382eWinson Chung            finalAlpha = 1.0f;
1464af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        } else if (shrinkState == ShrinkState.TOP) {
14653c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            y = (screenHeight - getCustomizeDrawerHeight() - scaledPageHeight) / 2;
1466213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka        }
1467dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1468f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        int duration;
1469f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        if (shrinkState == ShrinkState.BOTTOM_HIDDEN || shrinkState == ShrinkState.BOTTOM_VISIBLE) {
1470f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            duration = res.getInteger(R.integer.config_allAppsWorkspaceShrinkTime);
1471f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        } else {
1472f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            duration = res.getInteger(R.integer.config_customizeWorkspaceShrinkTime);
1473f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        }
1474f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
1475dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // We animate all the screens to the centered position in workspace
1476dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // At the same time, the screens become greyed/dimmed
1477dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1478dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // newX is initialized to the left-most position of the centered screens
1479742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2;
1480a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1481a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // We are going to scale about the center of the view, so we need to adjust the positions
1482a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // of the views accordingly
1483742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        x -= (pageWidth - scaledPageWidth) / 2.0f;
1484742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        y -= (pageHeight - scaledPageHeight) / 2.0f;
14853c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka
14863c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        if (mAnimator != null) {
14873c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator.cancel();
14883c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        }
1489f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
14903c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        mAnimator = new AnimatorSet();
1491742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1492742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldXs = new float[getChildCount()];
1493742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldYs = new float[getChildCount()];
1494742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldScaleXs = new float[getChildCount()];
1495742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldScaleYs = new float[getChildCount()];
1496742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldBackgroundAlphas = new float[getChildCount()];
1497742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldAlphas = new float[getChildCount()];
1498742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldRotationYs = new float[getChildCount()];
1499742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newXs = new float[getChildCount()];
1500742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newYs = new float[getChildCount()];
1501742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newScaleXs = new float[getChildCount()];
1502742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newScaleYs = new float[getChildCount()];
1503742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newBackgroundAlphas = new float[getChildCount()];
1504742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newAlphas = new float[getChildCount()];
1505742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newRotationYs = new float[getChildCount()];
1506742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1507dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
1508f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            final CellLayout cl = (CellLayout) getChildAt(i);
1509a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1510f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            float rotation = (-i + 2) * WORKSPACE_ROTATION;
1511a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f));
1512a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            float rotationScaleY = getYScaleForScreen(i);
1513a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1514742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            oldAlphas[i] = cl.getAlpha();
1515742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            newAlphas[i] = finalAlpha;
1516abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka            if (animated && (oldAlphas[i] != 0f || newAlphas[i] != 0f)) {
1517abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                // if the CellLayout will be visible during the animation, force building its
1518abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                // hardware layer immediately so we don't see a blip later in the animation
1519abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                cl.buildChildrenLayer();
1520abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka            }
15213e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            if (animated) {
1522742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldXs[i] = cl.getX();
1523742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldYs[i] = cl.getY();
1524742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldScaleXs[i] = cl.getScaleX();
1525742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldScaleYs[i] = cl.getScaleY();
1526742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldBackgroundAlphas[i] = cl.getBackgroundAlpha();
1527742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldRotationYs[i] = cl.getRotationY();
1528742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newXs[i] = x;
1529742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newYs[i] = y;
1530742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newScaleXs[i] = SHRINK_FACTOR * rotationScaleX * extraShrinkFactor;
1531742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newScaleYs[i] = SHRINK_FACTOR * rotationScaleY * extraShrinkFactor;
1532742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newBackgroundAlphas[i] = finalAlpha;
1533742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newRotationYs[i] = rotation;
153479212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka            } else {
1535742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                cl.setX((int)x);
1536742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                cl.setY((int)y);
1537883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka                cl.setScaleX(SHRINK_FACTOR * rotationScaleX * extraShrinkFactor);
1538883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka                cl.setScaleY(SHRINK_FACTOR * rotationScaleY * extraShrinkFactor);
1539883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka                cl.setBackgroundAlpha(finalAlpha);
15403e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                cl.setAlpha(finalAlpha);
1541a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen                cl.setRotationY(rotation);
15423e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                mShrinkAnimationListener.onAnimationEnd(null);
154379212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka            }
1544dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka            // increment newX for the next screen
1545742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            x += scaledPageWidth + extraScaledSpacing;
1546dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
1547ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1548ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float wallpaperOffset = 0.5f;
1549ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
1550ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        int wallpaperTravelHeight = (int) (display.getHeight() *
1551ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight()));
1552ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f;
1553ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean isLandscape = display.getWidth() > display.getHeight();
1554ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1555ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        switch (shrinkState) {
1556ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            // animating in
1557ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case TOP:
1558ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // customize
1559ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperOffset = 0.5f + offsetFromCenter;
1560ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.46f : 0.44f);
1561ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                break;
1562ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case MIDDLE:
1563ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case SPRING_LOADED:
1564ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperOffset = 0.5f;
1565ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f);
1566ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                break;
1567ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case BOTTOM_HIDDEN:
1568ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case BOTTOM_VISIBLE:
1569ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // allapps
1570ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperOffset = 0.5f - offsetFromCenter;
1571ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f);
1572ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                break;
1573ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
1574ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1575742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        setLayoutScale(1.0f);
1576ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        if (animated) {
1577ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mWallpaperOffset.setHorizontalCatchupConstant(0.46f);
1578ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1579ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1580ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mSyncWallpaperOffsetWithScroll = false;
1581ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1582742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            ValueAnimator animWithInterpolator =
1583742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1584742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            animWithInterpolator.setInterpolator(mZoomOutInterpolator);
1585742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1586742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset();
1587742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset();
1588742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float newHorizontalWallpaperOffset = 0.5f;
1589742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float newVerticalWallpaperOffset = wallpaperOffset;
1590742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            animWithInterpolator.addUpdateListener(new AnimatorUpdateListener() {
1591742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                public void onAnimationUpdate(ValueAnimator animation) {
1592742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    final float b = (Float) animation.getAnimatedValue();
1593742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    final float a = 1f - b;
1594c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    if (b == 0f) {
1595c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        // an optimization, and required for correct behavior.
1596c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        return;
1597c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    }
1598c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    fastInvalidate();
1599742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    setHorizontalWallpaperOffset(
1600742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset);
1601742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    setVerticalWallpaperOffset(
1602742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset);
1603742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    for (int i = 0; i < screenCount; i++) {
1604742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final CellLayout cl = (CellLayout) getChildAt(i);
1605742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.fastInvalidate();
1606742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastX(a * oldXs[i] + b * newXs[i]);
1607742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastY(a * oldYs[i] + b * newYs[i]);
1608742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastScaleX(a * oldScaleXs[i] + b * newScaleXs[i]);
1609742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastScaleY(a * oldScaleYs[i] + b * newScaleYs[i]);
1610742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastBackgroundAlpha(
1611742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                a * oldBackgroundAlphas[i] + b * newBackgroundAlphas[i]);
1612742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastAlpha(a * oldAlphas[i] + b * newAlphas[i]);
1613742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastRotationY(a * oldRotationYs[i] + b * newRotationYs[i]);
1614742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1615742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                }
1616742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            });
1617742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            mAnimator.playTogether(animWithInterpolator);
1618bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            mAnimator.addListener(mShrinkAnimationListener);
16193c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator.start();
1620ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        } else {
1621ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            setVerticalWallpaperOffset(wallpaperOffset);
1622ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            setHorizontalWallpaperOffset(0.5f);
1623ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateWallpaperOffsetImmediately();
16243c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        }
1625dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        setChildrenDrawnWithCacheEnabled(true);
16268d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
1627af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        if (shrinkState == ShrinkState.TOP) {
16288d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            showBackgroundGradientForCustomizeTray();
16298d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung        } else {
1630760e5375f003accf04f789e90a919ed476d4c335Winson Chung            showBackgroundGradientForAllApps();
16318d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung        }
1632dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1633dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
163461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
163561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * This interpolator emulates the rate at which the perceived scale of an object changes
163661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * as its distance from a camera increases. When this interpolator is applied to a scale
163761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * animation on a view, it evokes the sense that the object is shrinking due to moving away
163861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * from the camera.
163961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
164061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZInterpolator implements TimeInterpolator {
164161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private float focalLength;
164261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
164361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public ZInterpolator(float foc) {
164461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            focalLength = foc;
164561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
164661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
1647eed565d5126cb40b2a7ecdf5f6e8ac7a7464007bAdam Cohen        public float getInterpolation(float input) {
1648eed565d5126cb40b2a7ecdf5f6e8ac7a7464007bAdam Cohen            return (1.0f - focalLength / (focalLength + input)) /
164961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen                (1.0f - focalLength / (focalLength + 1.0f));
1650cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        }
1651cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen    }
1652cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
165361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
165461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * The exact reverse of ZInterpolator.
165561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
165661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class InverseZInterpolator implements TimeInterpolator {
165761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private ZInterpolator zInterpolator;
165861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public InverseZInterpolator(float foc) {
165961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            zInterpolator = new ZInterpolator(foc);
166061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
1661cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        public float getInterpolation(float input) {
166261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return 1 - zInterpolator.getInterpolation(1 - input);
1663cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        }
1664cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen    }
1665cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
166661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
166761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * ZInterpolator compounded with an ease-out.
166861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
166961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZoomOutInterpolator implements TimeInterpolator {
167061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final ZInterpolator zInterpolator = new ZInterpolator(0.2f);
1671ea57348cc8f4647f6bc35a42cd45662ddb828b92Michael Jurka        private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f);
167261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
167361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public float getInterpolation(float input) {
167461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return decelerate.getInterpolation(zInterpolator.getInterpolation(input));
167561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
167661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    }
167761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
167861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
167961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * InvereZInterpolator compounded with an ease-out.
168061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
168161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZoomInInterpolator implements TimeInterpolator {
168261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f);
168361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f);
168461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
168561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public float getInterpolation(float input) {
168661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input));
168761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
168861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    }
168961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
169061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator();
169161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator();
16923e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
1693af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private void updateWhichPagesAcceptDrops(ShrinkState state) {
16943e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        updateWhichPagesAcceptDropsHelper(state, false, 1, 1);
16953e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
16963e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
1697af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private void updateWhichPagesAcceptDropsDuringDrag(ShrinkState state, int spanX, int spanY) {
16983e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        updateWhichPagesAcceptDropsHelper(state, true, spanX, spanY);
16993e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
17003e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
17013e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    private void updateWhichPagesAcceptDropsHelper(
1702af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka            ShrinkState state, boolean isDragHappening, int spanX, int spanY) {
17033e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        final int screenCount = getChildCount();
17043e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        for (int i = 0; i < screenCount; i++) {
17053e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            CellLayout cl = (CellLayout) getChildAt(i);
170633945b21544bc98381df17726a3537c292d8c985Michael Jurka            cl.setIsDragOccuring(isDragHappening);
17073e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            switch (state) {
1708af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka                case TOP:
170933945b21544bc98381df17726a3537c292d8c985Michael Jurka                    cl.setIsDefaultDropTarget(i == mCurrentPage);
1710af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka                case BOTTOM_HIDDEN:
1711af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka                case BOTTOM_VISIBLE:
17127bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy                case SPRING_LOADED:
17133e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                    if (state != ShrinkState.TOP) {
17143e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                        cl.setIsDefaultDropTarget(false);
17153e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                    }
17163e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    if (!isDragHappening) {
17173e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                        // even if a drag isn't happening, we don't want to show a screen as
17183e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                        // accepting drops if it doesn't have at least one free cell
17193e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                        spanX = 1;
17203e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                        spanY = 1;
17213e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    }
17223e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    // the page accepts drops if we can find at least one empty spot
17233e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    cl.setAcceptsDrops(cl.findCellForSpan(null, spanX, spanY));
17243e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    break;
17253e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                default:
17267bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy                     throw new RuntimeException("Unhandled ShrinkState " + state);
17273e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            }
17283e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
17293e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
17303e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
17313e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    /*
17323e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     *
17333e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     * We call these methods (onDragStartedWithItemSpans/onDragStartedWithItemMinSize) whenever we
17343e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace
17353e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     *
17363e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     * These methods mark the appropriate pages as accepting drops (which alters their visual
17376b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * appearance).
17383e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     *
17393e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     */
1740d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) {
1741d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mIsDragInProcess = true;
1742d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1743d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        final Canvas canvas = new Canvas();
17443e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
1745d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        // We need to add extra padding to the bitmap to make room for the glow effect
174638b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
1747d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1748f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        CellLayout cl = (CellLayout) getChildAt(0);
1749f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int[] desiredSize = cl.cellSpansToSize(spanX, spanY);
1750d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        // The outline is used to visualize where the item will land if dropped
1751f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        mDragOutline = createDragOutline(b, canvas, bitmapPadding, desiredSize[0], desiredSize[1]);
1752d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1753d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        updateWhichPagesAcceptDropsDuringDrag(mShrinkState, spanX, spanY);
17543e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
17553e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
17563e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was
17573e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    // never dragged over
17587bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy    public void onDragStopped(boolean success) {
17590bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka        mLastDragView = null;
17607bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        // In the success case, DragController has already called onDragExit()
17617bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        if (!success) {
17627bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy            doDragExit();
17637bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        }
1764d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mIsDragInProcess = false;
1765af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        updateWhichPagesAcceptDrops(mShrinkState);
17663e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
17673e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
17689c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka    // We call this when we trigger an unshrink by clicking on the CellLayout cl
17699c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka    public void unshrink(CellLayout clThatWasClicked) {
1770d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(clThatWasClicked, false);
1771d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1772d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1773d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) {
17749c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka        int newCurrentPage = indexOfChild(clThatWasClicked);
1775b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka        if (mIsSmall) {
1776d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (springLoaded) {
1777d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                setLayoutScale(SPRING_LOADED_DRAG_SHRINK_FACTOR);
1778d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
17798c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka            scrollToNewPageWithoutMovingPages(newCurrentPage);
1780d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            unshrink(true, springLoaded);
1781d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        }
1782d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1783d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1784d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1785d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) {
1786d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mShrinkState = ShrinkState.SPRING_LOADED;
1787d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(clThatWasClicked, true);
1788d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mDragTargetLayout.onDragEnter();
1789d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1790d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1791d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void exitSpringLoadedDragMode(ShrinkState shrinkState) {
1792d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        shrink(shrinkState);
1793d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        if (mDragTargetLayout != null) {
1794d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            mDragTargetLayout.onDragExit();
1795b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka        }
1796dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1797dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1798758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy    public void exitWidgetResizeMode() {
1799758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy        final CellLayout currentLayout = (CellLayout) getChildAt(getCurrentPage());
1800758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy        currentLayout.getChildrenLayout().clearAllResizeFrames();
1801758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy    }
1802758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy
18034cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka    void unshrink(boolean animated) {
1804d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(animated, false);
1805d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1806d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1807d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    void unshrink(boolean animated, boolean springLoaded) {
1808b7e0e88412871f6582420e3eeb1552598ba8a4c1Michael Jurka        mWaitingToShrink = false;
1809b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka        if (mIsSmall) {
1810d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            float finalScaleFactor = 1.0f;
1811d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            float finalBackgroundAlpha = 0.0f;
1812d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (springLoaded) {
1813d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                finalScaleFactor = SPRING_LOADED_DRAG_SHRINK_FACTOR;
1814d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                finalBackgroundAlpha = 1.0f;
1815d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            } else {
1816d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                mIsSmall = false;
1817d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
18183c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            if (mAnimator != null) {
18193c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.cancel();
18203c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            }
18216b879f0a5885274a85333531e091283405d490ccAdam Lesinski
18223c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator = new AnimatorSet();
1823b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            final int screenCount = getChildCount();
18244cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka
18254cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka            final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime);
1826ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1827742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldTranslationXs = new float[getChildCount()];
1828742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldTranslationYs = new float[getChildCount()];
1829742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldScaleXs = new float[getChildCount()];
1830742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldScaleYs = new float[getChildCount()];
1831742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldBackgroundAlphas = new float[getChildCount()];
1832742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldBackgroundAlphaMultipliers = new float[getChildCount()];
1833742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldAlphas = new float[getChildCount()];
1834742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldRotationYs = new float[getChildCount()];
1835742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newTranslationXs = new float[getChildCount()];
1836742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newTranslationYs = new float[getChildCount()];
1837742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newScaleXs = new float[getChildCount()];
1838742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newScaleYs = new float[getChildCount()];
1839742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newBackgroundAlphas = new float[getChildCount()];
1840742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newBackgroundAlphaMultipliers = new float[getChildCount()];
1841742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newAlphas = new float[getChildCount()];
1842742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newRotationYs = new float[getChildCount()];
1843742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1844b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            for (int i = 0; i < screenCount; i++) {
18457247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroy                final CellLayout cl = (CellLayout)getChildAt(i);
18465f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka                float finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f;
1847ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                float finalAlphaMultiplierValue =
1848ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                        ((i == mCurrentPage) && (mShrinkState != ShrinkState.SPRING_LOADED)) ?
1849ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                        0.0f : 1.0f;
1850f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                float rotation = 0.0f;
1851f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1852f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                if (i < mCurrentPage) {
1853f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    rotation = WORKSPACE_ROTATION;
1854f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                } else if (i > mCurrentPage) {
1855f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    rotation = -WORKSPACE_ROTATION;
1856f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                }
1857f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
18586b879f0a5885274a85333531e091283405d490ccAdam Lesinski                float translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight());
1859cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
1860742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldAlphas[i] = cl.getAlpha();
1861742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newAlphas[i] = finalAlphaValue;
18623e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                if (animated) {
1863742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldTranslationXs[i] = cl.getTranslationX();
1864742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldTranslationYs[i] = cl.getTranslationY();
1865742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldScaleXs[i] = cl.getScaleX();
1866742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldScaleYs[i] = cl.getScaleY();
1867742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldBackgroundAlphas[i] = cl.getBackgroundAlpha();
1868742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier();
1869742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldRotationYs[i] = cl.getRotationY();
1870742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1871742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newTranslationXs[i] = translation;
1872742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newTranslationYs[i] = 0f;
1873742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newScaleXs[i] = finalScaleFactor;
1874742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newScaleYs[i] = finalScaleFactor;
1875742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newBackgroundAlphas[i] = finalBackgroundAlpha;
1876742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue;
1877742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newRotationYs[i] = rotation;
18784cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                } else {
18796b879f0a5885274a85333531e091283405d490ccAdam Lesinski                    cl.setTranslationX(translation);
18804cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                    cl.setTranslationY(0.0f);
1881d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    cl.setScaleX(finalScaleFactor);
1882d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    cl.setScaleY(finalScaleFactor);
18835f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka                    cl.setBackgroundAlpha(0.0f);
1884ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                    cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue);
1885f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    cl.setAlpha(finalAlphaValue);
1886f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    cl.setRotationY(rotation);
18873e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                    mUnshrinkAnimationListener.onAnimationEnd(null);
18884cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                }
1889b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            }
1890ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            Display display = mLauncher.getWindowManager().getDefaultDisplay();
1891ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            boolean isLandscape = display.getWidth() > display.getHeight();
1892ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            switch (mShrinkState) {
1893ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // animating out
1894ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case TOP:
1895ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    // customize
1896ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    if (animated) {
1897ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.62f);
1898ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.62f);
1899ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1900ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    }
1901ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    break;
1902ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case MIDDLE:
1903ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case SPRING_LOADED:
1904ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    if (animated) {
1905ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f);
1906ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f);
1907ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1908ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    }
1909ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    break;
1910ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case BOTTOM_HIDDEN:
1911ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case BOTTOM_VISIBLE:
1912ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    // all apps
1913ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    if (animated) {
1914ea57348cc8f4647f6bc35a42cd45662ddb828b92Michael Jurka                        mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f);
1915ea57348cc8f4647f6bc35a42cd45662ddb828b92Michael Jurka                        mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f);
1916ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1917ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    }
1918ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    break;
1919ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
1920ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (animated) {
1921742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator animWithInterpolator =
1922742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1923742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                animWithInterpolator.setInterpolator(mZoomInInterpolator);
1924742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1925742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset();
1926742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset();
1927742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                final float newHorizontalWallpaperOffset = wallpaperOffsetForCurrentScroll();
1928742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                final float newVerticalWallpaperOffset = 0.5f;
1929742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                animWithInterpolator.addUpdateListener(new AnimatorUpdateListener() {
1930742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    public void onAnimationUpdate(ValueAnimator animation) {
1931742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final float b = (Float) animation.getAnimatedValue();
1932742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final float a = 1f - b;
1933c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        if (b == 0f) {
1934c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            // an optimization, but not required
1935c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            return;
1936c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        }
1937c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        fastInvalidate();
1938742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        setHorizontalWallpaperOffset(
1939742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset);
1940742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        setVerticalWallpaperOffset(
1941742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset);
1942742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        for (int i = 0; i < screenCount; i++) {
1943742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            final CellLayout cl = (CellLayout) getChildAt(i);
1944742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.fastInvalidate();
1945742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastTranslationX(
1946742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldTranslationXs[i] + b * newTranslationXs[i]);
1947742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastTranslationY(
1948742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldTranslationYs[i] + b * newTranslationYs[i]);
1949742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastScaleX(a * oldScaleXs[i] + b * newScaleXs[i]);
1950742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastScaleY(a * oldScaleYs[i] + b * newScaleYs[i]);
1951742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastBackgroundAlpha(
1952742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldBackgroundAlphas[i] + b * newBackgroundAlphas[i]);
1953742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setBackgroundAlphaMultiplier(a * oldBackgroundAlphaMultipliers[i] +
1954742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    b * newBackgroundAlphaMultipliers[i]);
1955742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastAlpha(a * oldAlphas[i] + b * newAlphas[i]);
1956742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        }
1957742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1958742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                });
1959742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1960742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator rotationAnim =
1961742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1962742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f));
1963742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                rotationAnim.addUpdateListener(new AnimatorUpdateListener() {
1964742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    public void onAnimationUpdate(ValueAnimator animation) {
1965742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        // don't invalidate workspace because we did it above
1966742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final float b = (Float) animation.getAnimatedValue();
1967742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final float a = 1f - b;
1968c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        if (b == 0f) {
1969c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            // an optimization, but not required
1970c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            return;
1971c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        }
1972742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        for (int i = 0; i < screenCount; i++) {
1973742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            final CellLayout cl = (CellLayout) getChildAt(i);
1974742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastRotationY(a * oldRotationYs[i] + b * newRotationYs[i]);
1975742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        }
1976742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1977742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                });
19786b879f0a5885274a85333531e091283405d490ccAdam Lesinski
1979742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                mAnimator.playTogether(animWithInterpolator, rotationAnim);
1980c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka                // If we call this when we're not animated, onAnimationEnd is never called on
1981c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka                // the listener; make sure we only use the listener when we're actually animating
19823c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.addListener(mUnshrinkAnimationListener);
19833c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.start();
1984ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else {
1985ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll());
1986ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                setVerticalWallpaperOffset(0.5f);
1987ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                updateWallpaperOffsetImmediately();
1988c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka            }
1989dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
19908d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
1991a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung        if (!springLoaded) {
1992a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung            hideBackgroundGradient();
1993a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung        }
1994dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1995dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
19964be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
19974be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Draw the View v into the given Canvas.
19984be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     *
19994be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param v the view to draw
20004be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param destCanvas the canvas to draw on
20014be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param padding the horizontal and vertical padding to use when drawing
20024be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
20034be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private void drawDragView(View v, Canvas destCanvas, int padding) {
20044be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Rect clipRect = mTempRect;
20054be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        v.getDrawingRect(clipRect);
20064be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20074be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // For a TextView, adjust the clip rect so that we don't include the text label
2008656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung        if (v instanceof BubbleTextView) {
2009656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung            final BubbleTextView tv = (BubbleTextView) v;
2010656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung            clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V +
2011656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung                    tv.getLayout().getLineTop(0);
2012656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung        } else if (v instanceof TextView) {
2013bbc60d8e79416e37cbede55c159bf6aaa6c171d5Winson Chung            final TextView tv = (TextView) v;
2014656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung            clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() +
2015656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung                    tv.getLayout().getLineTop(0);
20164be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        }
20174be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20184be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // Draw the View into the bitmap.
20194be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The translate of scrollX and scrollY is necessary when drawing TextViews, because
20204be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // they set scrollX and scrollY to large values to achieve centered text
20214be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20224be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        destCanvas.save();
20234be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2);
20244be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        destCanvas.clipRect(clipRect, Op.REPLACE);
20254be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        v.draw(destCanvas);
20264be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        destCanvas.restore();
20274be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
20284be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20294be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
20304be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
20314be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Responsibility for the bitmap is transferred to the caller.
20324be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
20334be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap createDragOutline(View v, Canvas canvas, int padding) {
20344be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
20354be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Bitmap b = Bitmap.createBitmap(
20364be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato                v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
20374be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20384be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        canvas.setBitmap(b);
20394be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        drawDragView(v, canvas, padding);
20405bb50bdb13f5fc22f5febd9480e78222b26c6fe7Adam Cohen        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
20414be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        return b;
20424be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
20434be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20444be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
2045d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
2046d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     * Responsibility for the bitmap is transferred to the caller.
2047d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     */
2048f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka    private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) {
2049d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
2050f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
2051d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        canvas.setBitmap(b);
2052f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
2053f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight());
2054f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(),
2055f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka                (h - padding) / (float) orig.getHeight());
2056f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int scaledWidth = (int) (scaleFactor * orig.getWidth());
2057f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int scaledHeight = (int) (scaleFactor * orig.getHeight());
2058f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Rect dst = new Rect(0, 0, scaledWidth, scaledHeight);
2059f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
2060f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        // center the image
2061f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2);
2062f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
2063f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Paint p = new Paint();
2064f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        p.setFilterBitmap(true);
2065f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        canvas.drawBitmap(orig, src, dst, p);
2066d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
2067d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
2068d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        return b;
2069d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
2070d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
2071d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    /**
2072a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * Creates a drag outline to represent a drop (that we don't have the actual information for
2073a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * yet).  May be changed in the future to alter the drop outline slightly depending on the
2074a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * clip description mime data.
2075a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     */
2076a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    private Bitmap createExternalDragOutline(Canvas canvas, int padding) {
2077a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        Resources r = getResources();
2078a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int outlineColor = r.getColor(R.color.drag_outline_color);
2079a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width);
2080a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height);
2081a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius);
2082a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f);
2083a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final Bitmap b = Bitmap.createBitmap(
2084a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888);
2085a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2086a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        canvas.setBitmap(b);
2087a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset),
2088a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                rectRadius, rectRadius, mExternalDragOutlinePaint);
20895bb50bdb13f5fc22f5febd9480e78222b26c6fe7Adam Cohen        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
2090a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        return b;
2091a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    }
2092a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2093a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    /**
20944be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Returns a new bitmap to show when the given View is being dragged around.
20954be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Responsibility for the bitmap is transferred to the caller.
20964be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
20974be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap createDragBitmap(View v, Canvas canvas, int padding) {
20984be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
20994be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Bitmap b = Bitmap.createBitmap(
21004be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato                mDragOutline.getWidth(), mDragOutline.getHeight(), Bitmap.Config.ARGB_8888);
21014be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
21024be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        canvas.setBitmap(b);
21034be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        canvas.drawBitmap(mDragOutline, 0, 0, null);
21044be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        drawDragView(v, canvas, padding);
21058e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        mOutlineHelper.applyOuterBlur(b, canvas, outlineColor);
21064be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
21074be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        return b;
21084be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
21094be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
211031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void startDrag(CellLayout.CellInfo cellInfo) {
211131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View child = cellInfo.cell;
2112aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
211331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // Make sure the drag was started by a long press as opposed to a long click.
21147984c9496bcaeca23ee7fdecc4d4f1bb2467e0f2Bjorn Bringert        if (!child.isInTouchMode()) {
211531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return;
211631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
2117aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
211831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = cellInfo;
211931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
21200c10bb4a56a8dd06e4ddd9830bd279fdaf4a8df7Patrick Dubroy        CellLayout current = (CellLayout) getChildAt(cellInfo.screen);
212131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        current.onDragChild(child);
21224be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
21234be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.clearFocus();
21244be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.setPressed(false);
21254be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
21264be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Canvas canvas = new Canvas();
21274be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
21288e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        // We need to add extra padding to the bitmap to make room for the glow effect
212938b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
21308e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy
21314be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The outline is used to visualize where the item will land if dropped
21328e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        mDragOutline = createDragOutline(child, canvas, bitmapPadding);
21334be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
21344be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The drag bitmap follows the touch point around on the screen
21358e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        final Bitmap b = createDragBitmap(child, canvas, bitmapPadding);
21364be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
21374be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int bmpWidth = b.getWidth();
21384be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int bmpHeight = b.getHeight();
21394be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.getLocationOnScreen(mTempXY);
21404be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int screenX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2;
21414be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int screenY = (int) mTempXY[1] + (child.getHeight() - bmpHeight) / 2;
2142400438b79fe412cb625c96297edeea9c6155349eWinson Chung        mLauncher.lockScreenOrientation();
21435f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy        mDragController.startDrag(
21445f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy                b, screenX, screenY, this, child.getTag(), DragController.DRAG_ACTION_MOVE);
21454be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        b.recycle();
214631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
214731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
21480280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    void addApplicationShortcut(ShortcutInfo info, int screen, int cellX, int cellY,
21490280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            boolean insertAtFirst, int intersectX, int intersectY) {
21500280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        final CellLayout cellLayout = (CellLayout) getChildAt(screen);
21510280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        View view = mLauncher.createShortcut(R.layout.application, cellLayout, (ShortcutInfo) info);
215231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
21530280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        final int[] cellXY = new int[2];
21540280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        cellLayout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY);
21550280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst);
21560280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
21570280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
21580280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                cellXY[0], cellXY[1]);
215931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
216031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2161ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy    private void setPositionForDropAnimation(
2162ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            View dragView, int dragViewX, int dragViewY, View parent, View child) {
2163ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        final CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
2164ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2165ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        // Based on the position of the drag view, find the top left of the original view
2166ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        int viewX = dragViewX + (dragView.getWidth() - child.getWidth()) / 2;
2167ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        int viewY = dragViewY + (dragView.getHeight() - child.getHeight()) / 2;
2168a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy        viewX += getResources().getInteger(R.integer.config_dragViewOffsetX);
2169a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy        viewY += getResources().getInteger(R.integer.config_dragViewOffsetY);
2170ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2171cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // Set its old pos (in the new parent's coordinates); it will be animated
2172cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // in animateViewIntoPosition after the next layout pass
2173ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        lp.oldX = viewX - (parent.getLeft() - mScrollX);
2174ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        lp.oldY = viewY - (parent.getTop() - mScrollY);
2175ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy    }
21760280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
2177df9de0b121973bb59f4b8a74ade3000ec201c503Adam Cohen    /*
2178df9de0b121973bb59f4b8a74ade3000ec201c503Adam Cohen     * We should be careful that this method cannot result in any synchronous requestLayout()
2179df9de0b121973bb59f4b8a74ade3000ec201c503Adam Cohen     * calls, as it is called from onLayout().
2180df9de0b121973bb59f4b8a74ade3000ec201c503Adam Cohen     */
2181cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    public void animateViewIntoPosition(final View view) {
21828c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka        final CellLayout parent = (CellLayout) view.getParent().getParent();
2183cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
2184cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2185cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // Convert the animation params to be relative to the Workspace, not the CellLayout
2186cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final int fromX = lp.oldX + parent.getLeft();
2187cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final int fromY = lp.oldY + parent.getTop();
2188cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2189cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final int dx = lp.x - lp.oldX;
2190cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final int dy = lp.y - lp.oldY;
2191cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2192cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // Calculate the duration of the animation based on the object's distance
2193cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final float dist = (float) Math.sqrt(dx*dx + dy*dy);
2194cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final Resources res = getResources();
2195cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final float maxDist = (float) res.getInteger(R.integer.config_dropAnimMaxDist);
21968ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy        int duration = res.getInteger(R.integer.config_dropAnimMaxDuration);
21978ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy        if (dist < maxDist) {
21988ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy            duration *= mQuintEaseOutInterpolator.getInterpolation(dist / maxDist);
21998ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy        }
2200cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2201f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        if (mDropAnim != null) {
22028edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka            mDropAnim.end();
2203f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        }
2204f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        mDropAnim = new ValueAnimator();
2205f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        mDropAnim.setInterpolator(mQuintEaseOutInterpolator);
2206cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2207f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        // The view is invisible during the animation; we render it manually.
22088edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka        mDropAnim.addListener(new AnimatorListenerAdapter() {
2209f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy            public void onAnimationStart(Animator animation) {
2210f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                // Set this here so that we don't render it until the animation begins
2211f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                mDropView = view;
2212f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy            }
2213f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy
22148edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka            public void onAnimationEnd(Animator animation) {
2215f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                if (mDropView != null) {
2216f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                    mDropView.setVisibility(View.VISIBLE);
2217f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                    mDropView = null;
2218cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                }
2219f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy            }
2220f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        });
22218ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy
2222cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        mDropAnim.setDuration(duration);
2223cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        mDropAnim.setFloatValues(0.0f, 1.0f);
2224cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        mDropAnim.removeAllUpdateListeners();
2225cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        mDropAnim.addUpdateListener(new AnimatorUpdateListener() {
2226cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            public void onAnimationUpdate(ValueAnimator animation) {
2227cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                final float percent = (Float) animation.getAnimatedValue();
2228cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                // Invalidate the old position
2229cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                invalidate(mDropViewPos[0], mDropViewPos[1],
2230cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                        mDropViewPos[0] + view.getWidth(), mDropViewPos[1] + view.getHeight());
2231cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2232cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mDropViewPos[0] = fromX + (int) (percent * dx + 0.5f);
2233cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mDropViewPos[1] = fromY + (int) (percent * dy + 0.5f);
2234cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                invalidate(mDropViewPos[0], mDropViewPos[1],
2235cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                        mDropViewPos[0] + view.getWidth(), mDropViewPos[1] + view.getHeight());
2236cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2237cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        });
22388ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy
22396920c2ce340354286c152cefaf75445314194778Patrick Dubroy        mDropAnim.start();
2240cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    }
2241cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2242cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    /**
2243cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy     * {@inheritDoc}
2244cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy     */
2245cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    public boolean acceptDrop(DragSource source, int x, int y,
2246cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            int xOffset, int yOffset, DragView dragView, Object dragInfo) {
2247cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2248cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // If it's an external drop (e.g. from All Apps), check if it should be accepted
2249cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        if (source != this) {
2250cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            // Don't accept the drop if we're not over a screen at time of drop
22513d79192da756fa9c46215d5c39f17cd8ac7fb43eMichael Jurka            if (mDragTargetLayout == null || !mDragTargetLayout.getAcceptsDrops()) {
2252cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                return false;
2253cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2254cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2255cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            final CellLayout.CellInfo dragCellInfo = mDragInfo;
2256cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            final int spanX = dragCellInfo == null ? 1 : dragCellInfo.spanX;
2257cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            final int spanY = dragCellInfo == null ? 1 : dragCellInfo.spanY;
2258cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2259cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            final View ignoreView = dragCellInfo == null ? null : dragCellInfo.cell;
2260cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2261cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            // Don't accept the drop if there's no room for the item
2262cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) {
2263cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mLauncher.showOutOfSpaceMessage();
2264cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                return false;
2265cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2266cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        }
2267cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        return true;
2268cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    }
2269cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
227000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
227100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
2272c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka        boolean largeOrSpringLoaded = !mIsSmall || mWasSpringLoadedOnDragExit;
2273c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka        int originX = largeOrSpringLoaded ? x - xOffset : x - xOffset + dragView.getWidth() / 2;
2274c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka        int originY = largeOrSpringLoaded ? y - yOffset : y - yOffset + dragView.getHeight() / 2;
2275ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2276c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
22770280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            // get originX and originY in the local coordinate system of the screen
22780280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            mTempOriginXY[0] = originX;
22790280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            mTempOriginXY[1] = originY;
2280d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            mapPointFromSelfToChild(mDragTargetLayout, mTempOriginXY);
22810280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            originX = (int)mTempOriginXY[0];
22820280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            originY = (int)mTempOriginXY[1];
2283c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            if (!largeOrSpringLoaded) {
2284c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka               originX -= mDragTargetLayout.getCellWidth() / 2;
2285c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka               originY -= mDragTargetLayout.getCellHeight() / 2;
2286c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            }
2287a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        }
2288c6ee42e25f203e408826e7eab4ad8faf67ed2ff9Michael Jurka
22893e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        // When you are in customization mode and drag to a particular screen, make that the
22903e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        // new current/default screen, so any subsequent taps add items to that screen
22913e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        if (!mLauncher.isAllAppsVisible()) {
22923e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            int dragTargetIndex = indexOfChild(mDragTargetLayout);
22933e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            if (mCurrentPage != dragTargetIndex && (mIsSmall || mIsInUnshrinkAnimation)) {
22943e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                scrollToNewPageWithoutMovingPages(dragTargetIndex);
22953e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            }
2296b09cac5a738b679038cbeaec80041637100b65d9Michael Jurka        }
2297b09cac5a738b679038cbeaec80041637100b65d9Michael Jurka
229831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (source != this) {
2299bbaa75c8c432c46c00ee2eb836e438b3774d6709Patrick Dubroy            final int[] touchXY = new int[] { originX, originY };
23005f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy            if ((mIsSmall || mIsInUnshrinkAnimation) && !mLauncher.isAllAppsVisible()) {
23015f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy                // When the workspace is shrunk and the drop comes from customize, don't actually
23025f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy                // add the item to the screen -- customize will do this itself
2303bbaa75c8c432c46c00ee2eb836e438b3774d6709Patrick Dubroy                ((ItemInfo) dragInfo).dropPos = touchXY;
23045f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy                return;
23055f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy            }
2306bbaa75c8c432c46c00ee2eb836e438b3774d6709Patrick Dubroy            onDropExternal(touchXY, dragInfo, mDragTargetLayout, false);
2307ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        } else if (mDragInfo != null) {
2308ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            final View cell = mDragInfo.cell;
230954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            CellLayout dropTargetLayout = mDragTargetLayout;
231054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
231154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            // Handle the case where the user drops when in the scroll area.
231254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            // This is treated as a drop on the adjacent page.
231354fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (dropTargetLayout == null && mInScrollArea) {
231454fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                if (mPendingScrollDirection == DragController.SCROLL_LEFT) {
231554fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    dropTargetLayout = (CellLayout) getChildAt(mCurrentPage - 1);
231654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                } else if (mPendingScrollDirection == DragController.SCROLL_RIGHT) {
231754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    dropTargetLayout = (CellLayout) getChildAt(mCurrentPage + 1);
231854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                }
231954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            }
232054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
232154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (dropTargetLayout != null) {
2322cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                // Move internally
2323cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mTargetCell = findNearestVacantArea(originX, originY,
232454fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                        mDragInfo.spanX, mDragInfo.spanY, cell, dropTargetLayout,
2325cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                        mTargetCell);
2326cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
232754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                final int screen = (mTargetCell == null) ?
232854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                        mDragInfo.screen : indexOfChild(dropTargetLayout);
232954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
233054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                if (screen != mCurrentPage) {
233154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    snapToPage(screen);
233254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                }
233354fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
233454fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                if (mTargetCell != null) {
23359438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    if (screen != mDragInfo.screen) {
23369438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        // Reparent the view
23379438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        ((CellLayout) getChildAt(mDragInfo.screen)).removeView(cell);
23389438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        addInScreen(cell, screen, mTargetCell[0], mTargetCell[1],
23399438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                                mDragInfo.spanX, mDragInfo.spanY);
23409438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    }
2341cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
23429438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    // update the item's position after drop
23439438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    final ItemInfo info = (ItemInfo) cell.getTag();
23449438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
234554fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]);
23469438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    lp.cellX = mTargetCell[0];
23479438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    lp.cellY = mTargetCell[1];
23489438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    cell.setId(LauncherModel.getCellLayoutChildId(-1, mDragInfo.screen,
23499438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY));
23509438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy
2351d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                    if (cell instanceof LauncherAppWidgetHostView) {
2352d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        final CellLayoutChildren children = dropTargetLayout.getChildrenLayout();
2353d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        final CellLayout cellLayout = dropTargetLayout;
2354d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        // We post this call so that the widget has a chance to be placed
2355d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        // in its final location
2356d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen
2357d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell;
2358d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo();
235927c09b05d3ed2a4ce9d53140216aba998727a569Adam Cohen                        if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) {
2360d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                            post(new Runnable() {
2361d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                                public void run() {
2362d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                                    children.addResizeFrame(info, hostView,
2363d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                                            cellLayout);
2364d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                                }
2365d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                            });
2366d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        }
2367d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                    }
2368d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen
23699438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    LauncherModel.moveItemInDatabase(mLauncher, info,
23709438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
23719438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            lp.cellX, lp.cellY);
23729438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                }
237331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2374cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
23758c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka            final CellLayout parent = (CellLayout) cell.getParent().getParent();
2376ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2377ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            // Prepare it to be animated into its new position
2378ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            // This must be called after the view has been re-parented
2379cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            setPositionForDropAnimation(dragView, originX, originY, parent, cell);
2380d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            boolean animateDrop = !mWasSpringLoadedOnDragExit;
2381d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            parent.onDropChild(cell, animateDrop);
238231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
238331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
238431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2385aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    public void onDragEnter(DragSource source, int x, int y, int xOffset,
2386aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            int yOffset, DragView dragView, Object dragInfo) {
238708ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        mDragTargetLayout = null; // Reset the drag state
238808ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy
2389d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (!mIsSmall) {
239008ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy            mDragTargetLayout = getCurrentDropLayout();
2391a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            mDragTargetLayout.onDragEnter();
2392d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            showOutlines();
2393d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        }
239431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
239531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
239618014791be2e3f41080f0bf621c618e3f096c5c7Michael Jurka    public DropTarget getDropTargetDelegate(DragSource source, int x, int y,
239718014791be2e3f41080f0bf621c618e3f096c5c7Michael Jurka            int xOffset, int yOffset, DragView dragView, Object dragInfo) {
23986569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
2399c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
2400d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            // If we're shrunken, don't let anyone drag on folders/etc that are on the mini-screens
24010280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            return null;
24020280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        }
2403440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // We may need to delegate the drag to a child view. If a 1x1 item
2404440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // would land in a cell occupied by a DragTarget (e.g. a Folder),
2405440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // then drag events should be handled by that child.
2406440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy
2407d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen        ItemInfo item = (ItemInfo) dragInfo;
2408440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        CellLayout currentLayout = getCurrentDropLayout();
2409440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy
2410440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        int dragPointX, dragPointY;
2411440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        if (item.spanX == 1 && item.spanY == 1) {
2412440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            // For a 1x1, calculate the drop cell exactly as in onDragOver
2413440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            dragPointX = x - xOffset;
2414440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            dragPointY = y - yOffset;
2415440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        } else {
2416440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            // Otherwise, use the exact drag coordinates
2417440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            dragPointX = x;
2418440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            dragPointY = y;
2419440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        }
24200280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        dragPointX += mScrollX - currentLayout.getLeft();
24210280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        dragPointY += mScrollY - currentLayout.getTop();
2422440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy
2423440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // If we are dragging over a cell that contains a DropTarget that will
2424440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // accept the drop, delegate to that DropTarget.
2425440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        final int[] cellXY = mTempCell;
2426440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        currentLayout.estimateDropCell(dragPointX, dragPointY, item.spanX, item.spanY, cellXY);
2427440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        View child = currentLayout.getChildAt(cellXY[0], cellXY[1]);
2428440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        if (child instanceof DropTarget) {
2429440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            DropTarget target = (DropTarget)child;
2430440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            if (target.acceptDrop(source, x, y, xOffset, yOffset, dragView, dragInfo)) {
2431440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy                return target;
2432440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            }
2433440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        }
2434440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        return null;
2435440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy    }
24366569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
2437a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    /**
2438580e27748137ff08599aa719d106b31215a28353Winson Chung     * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data
2439580e27748137ff08599aa719d106b31215a28353Winson Chung     * in the returned structure related to the widgets that match the drop (or a null list if it is
2440580e27748137ff08599aa719d106b31215a28353Winson Chung     * a shortcut drop).  If the drop is not accepted then a null structure is returned.
2441580e27748137ff08599aa719d106b31215a28353Winson Chung     */
2442580e27748137ff08599aa719d106b31215a28353Winson Chung    private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) {
2443580e27748137ff08599aa719d106b31215a28353Winson Chung        final LauncherModel model = mLauncher.getModel();
2444580e27748137ff08599aa719d106b31215a28353Winson Chung        final ClipDescription desc = event.getClipDescription();
2445580e27748137ff08599aa719d106b31215a28353Winson Chung        final int mimeTypeCount = desc.getMimeTypeCount();
2446580e27748137ff08599aa719d106b31215a28353Winson Chung        for (int i = 0; i < mimeTypeCount; ++i) {
2447580e27748137ff08599aa719d106b31215a28353Winson Chung            final String mimeType = desc.getMimeType(i);
2448580e27748137ff08599aa719d106b31215a28353Winson Chung            if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) {
2449580e27748137ff08599aa719d106b31215a28353Winson Chung                return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null);
2450580e27748137ff08599aa719d106b31215a28353Winson Chung            } else {
2451580e27748137ff08599aa719d106b31215a28353Winson Chung                final List<WidgetMimeTypeHandlerData> widgets =
2452580e27748137ff08599aa719d106b31215a28353Winson Chung                    model.resolveWidgetsForMimeType(mContext, mimeType);
2453580e27748137ff08599aa719d106b31215a28353Winson Chung                if (widgets.size() > 0) {
2454580e27748137ff08599aa719d106b31215a28353Winson Chung                    return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets);
2455580e27748137ff08599aa719d106b31215a28353Winson Chung                }
2456580e27748137ff08599aa719d106b31215a28353Winson Chung            }
2457580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2458580e27748137ff08599aa719d106b31215a28353Winson Chung        return null;
2459580e27748137ff08599aa719d106b31215a28353Winson Chung    }
2460580e27748137ff08599aa719d106b31215a28353Winson Chung
2461580e27748137ff08599aa719d106b31215a28353Winson Chung    /**
2462a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * Global drag and drop handler
2463a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     */
2464a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    @Override
2465a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    public boolean onDragEvent(DragEvent event) {
246668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung        final ClipDescription desc = event.getClipDescription();
2467a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final CellLayout layout = (CellLayout) getChildAt(mCurrentPage);
2468a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int[] pos = new int[2];
2469a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        layout.getLocationOnScreen(pos);
2470a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        // We need to offset the drag coordinates to layout coordinate space
2471a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int x = (int) event.getX() - pos[0];
2472a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int y = (int) event.getY() - pos[1];
2473a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2474a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        switch (event.getAction()) {
2475580e27748137ff08599aa719d106b31215a28353Winson Chung        case DragEvent.ACTION_DRAG_STARTED: {
2476580e27748137ff08599aa719d106b31215a28353Winson Chung            // Validate this drag
2477580e27748137ff08599aa719d106b31215a28353Winson Chung            Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event);
2478580e27748137ff08599aa719d106b31215a28353Winson Chung            if (test != null) {
2479580e27748137ff08599aa719d106b31215a28353Winson Chung                boolean isShortcut = (test.second == null);
2480580e27748137ff08599aa719d106b31215a28353Winson Chung                if (isShortcut) {
2481580e27748137ff08599aa719d106b31215a28353Winson Chung                    // Check if we have enough space on this screen to add a new shortcut
2482580e27748137ff08599aa719d106b31215a28353Winson Chung                    if (!layout.findCellForSpan(pos, 1, 1)) {
2483580e27748137ff08599aa719d106b31215a28353Winson Chung                        Toast.makeText(mContext, mContext.getString(R.string.out_of_space),
2484580e27748137ff08599aa719d106b31215a28353Winson Chung                                Toast.LENGTH_SHORT).show();
2485580e27748137ff08599aa719d106b31215a28353Winson Chung                        return false;
2486580e27748137ff08599aa719d106b31215a28353Winson Chung                    }
2487580e27748137ff08599aa719d106b31215a28353Winson Chung                }
2488580e27748137ff08599aa719d106b31215a28353Winson Chung            } else {
2489580e27748137ff08599aa719d106b31215a28353Winson Chung                // Show error message if we couldn't accept any of the items
2490580e27748137ff08599aa719d106b31215a28353Winson Chung                Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error),
2491a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                        Toast.LENGTH_SHORT).show();
2492a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                return false;
2493a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            }
2494a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
249568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // Create the drag outline
249668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // We need to add extra padding to the bitmap to make room for the glow effect
249768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            final Canvas canvas = new Canvas();
249838b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka            final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
249968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            mDragOutline = createExternalDragOutline(canvas, bitmapPadding);
2500a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
250168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // Show the current page outlines to indicate that we can accept this drop
250268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            showOutlines();
250333945b21544bc98381df17726a3537c292d8c985Michael Jurka            layout.setIsDragOccuring(true);
250468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            layout.onDragEnter();
250568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1);
2506a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
250768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            return true;
2508580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2509a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        case DragEvent.ACTION_DRAG_LOCATION:
2510a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Visualize the drop location
2511a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1);
2512a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2513580e27748137ff08599aa719d106b31215a28353Winson Chung        case DragEvent.ACTION_DROP: {
2514a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Try and add any shortcuts
2515a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            final LauncherModel model = mLauncher.getModel();
2516a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            final ClipData data = event.getClipData();
251755cef262f97749300c2f6e764da0b00cbcb78879Winson Chung
251868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // We assume that the mime types are ordered in descending importance of
251968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // representation. So we enumerate the list of mime types and alert the
252068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // user if any widgets can handle the drop.  Only the most preferred
252168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // representation will be handled.
252268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            pos[0] = x;
252368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            pos[1] = y;
2524580e27748137ff08599aa719d106b31215a28353Winson Chung            Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event);
2525580e27748137ff08599aa719d106b31215a28353Winson Chung            if (test != null) {
2526580e27748137ff08599aa719d106b31215a28353Winson Chung                final int index = test.first;
2527580e27748137ff08599aa719d106b31215a28353Winson Chung                final List<WidgetMimeTypeHandlerData> widgets = test.second;
2528580e27748137ff08599aa719d106b31215a28353Winson Chung                final boolean isShortcut = (widgets == null);
2529580e27748137ff08599aa719d106b31215a28353Winson Chung                final String mimeType = desc.getMimeType(index);
2530580e27748137ff08599aa719d106b31215a28353Winson Chung                if (isShortcut) {
25310d5aad7edbed3ed5c13904cc13ec8842ffe8837bDianne Hackborn                    final Intent intent = data.getItemAt(index).getIntent();
253268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                    Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon());
2533c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    onDropExternal(new int[] { x, y }, info, layout, false);
253468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                } else {
2535580e27748137ff08599aa719d106b31215a28353Winson Chung                    if (widgets.size() == 1) {
253668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // If there is only one item, then go ahead and add and configure
253768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // that widget
253868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo;
253968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final PendingAddWidgetInfo createInfo =
254068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                new PendingAddWidgetInfo(widgetInfo, mimeType, data);
254168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        mLauncher.addAppWidgetFromDrop(createInfo, mCurrentPage, pos);
2542580e27748137ff08599aa719d106b31215a28353Winson Chung                    } else {
254368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // Show the widget picker dialog if there is more than one widget
254468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // that can handle this data type
254568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final InstallWidgetReceiver.WidgetListAdapter adapter =
254668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                            new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType,
254768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                    data, widgets, layout, mCurrentPage, pos);
254868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final AlertDialog.Builder builder =
254968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                            new AlertDialog.Builder(mContext);
255068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setAdapter(adapter, adapter);
255168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setCancelable(true);
255268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setTitle(mContext.getString(
255368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                R.string.external_drop_widget_pick_title));
255468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setIcon(R.drawable.ic_no_applications);
255568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.show();
255655cef262f97749300c2f6e764da0b00cbcb78879Winson Chung                    }
2557a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                }
2558a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            }
2559a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2560580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2561a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        case DragEvent.ACTION_DRAG_ENDED:
2562a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Hide the page outlines after the drop
256333945b21544bc98381df17726a3537c292d8c985Michael Jurka            layout.setIsDragOccuring(false);
2564a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            layout.onDragExit();
2565a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            hideOutlines();
2566a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2567a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        }
2568a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        return super.onDragEvent(event);
2569a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    }
2570a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
25714516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
25724516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25734516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
25744516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * coordinate space. The argument xy is modified with the return result.
25754516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25764516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
25774516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromSelfToChild(View v, float[] xy) {
25784516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       mapPointFromSelfToChild(v, xy, null);
25794516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
25804516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25814516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   /*
25824516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25834516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
25844516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * coordinate space. The argument xy is modified with the return result.
25854516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25864516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * if cachedInverseMatrix is not null, this method will just use that matrix instead of
2587d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka    * computing it itself; we use this to avoid redundant matrix inversions in
25884516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * findMatchingPageForDragOver
25894516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25904516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
25914516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) {
25924516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       if (cachedInverseMatrix == null) {
25934516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka           v.getMatrix().invert(mTempInverseMatrix);
25944516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka           cachedInverseMatrix = mTempInverseMatrix;
25954516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       }
25964516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[0] = xy[0] + mScrollX - v.getLeft();
25974516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[1] = xy[1] + mScrollY - v.getTop();
25984516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       cachedInverseMatrix.mapPoints(xy);
25994516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
26004516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26014516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   /*
26024516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
26034516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from this CellLayout's coordinate space to
26044516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * the parent View's coordinate space. The argument xy is modified with the return result.
26054516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
26064516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
26074516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromChildToSelf(View v, float[] xy) {
26084516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       v.getMatrix().mapPoints(xy);
26094516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[0] -= (mScrollX - v.getLeft());
26104516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[1] -= (mScrollY - v.getTop());
26114516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
26124516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26134516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    static private float squaredDistance(float[] point1, float[] point2) {
26144516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float distanceX = point1[0] - point2[0];
26154516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float distanceY = point2[1] - point2[1];
26164516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        return distanceX * distanceX + distanceY * distanceY;
26170280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
26180280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
26194516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
26204516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26214516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * Returns true if the passed CellLayout cl overlaps with dragView
26224516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26234516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     */
26244516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    boolean overlaps(CellLayout cl, DragView dragView,
26254516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            int dragViewX, int dragViewY, Matrix cachedInverseMatrix) {
26264516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // Transform the coordinates of the item being dragged to the CellLayout's coordinates
26274516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        final float[] draggedItemTopLeft = mTempDragCoordinates;
2628f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemTopLeft[0] = dragViewX;
2629f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemTopLeft[1] = dragViewY;
26304516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates;
2631f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth();
2632f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight();
26334516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26344516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // Transform the dragged item's top left coordinates
26354516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // to the CellLayout's local coordinates
26364516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix);
26374516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]);
26384516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]);
26394516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26404516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) {
26414516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // Transform the dragged item's bottom right coordinates
26424516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // to the CellLayout's local coordinates
26434516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix);
26444516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]);
26454516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]);
26464516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26474516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) {
26484516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                float overlap = (overlapRegionRight - overlapRegionLeft) *
26494516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                         (overlapRegionBottom - overlapRegionTop);
26504516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                if (overlap > 0) {
26514516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                    return true;
26524516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                }
26534516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka             }
26544516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        }
26554516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        return false;
26564516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    }
2657a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
26584516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
26594516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26604516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * This method returns the CellLayout that is currently being dragged to. In order to drag
26614516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second
26624516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one
26634516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26644516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * Return null if no CellLayout is currently being dragged over
26654516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26664516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     */
26674516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private CellLayout findMatchingPageForDragOver(
26684516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            DragView dragView, int originX, int originY, int offsetX, int offsetY) {
26694516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // We loop through all the screens (ie CellLayouts) and see which ones overlap
26704516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // with the item being dragged and then choose the one that's closest to the touch point
2671a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        final int screenCount = getChildCount();
2672a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        CellLayout bestMatchingScreen = null;
26730280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        float smallestDistSoFar = Float.MAX_VALUE;
26744516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
2675a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        for (int i = 0; i < screenCount; i++) {
2676a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka            CellLayout cl = (CellLayout)getChildAt(i);
2677a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
26784516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            final float[] touchXy = mTempTouchCoordinates;
26794516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            touchXy[0] = originX + offsetX;
26804516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            touchXy[1] = originY + offsetY;
2681a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
26824516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // Transform the touch coordinates to the CellLayout's local coordinates
26834516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // If the touch point is within the bounds of the cell layout, we can return immediately
26840280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            cl.getMatrix().invert(mTempInverseMatrix);
26854516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix);
26864516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26874516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() &&
26884516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                    touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) {
26894516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                return cl;
26904516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            }
26914516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26924516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (overlaps(cl, dragView, originX, originY, mTempInverseMatrix)) {
26934516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // Get the center of the cell layout in screen coordinates
26944516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates;
26954516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                cellLayoutCenter[0] = cl.getWidth()/2;
26964516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                cellLayoutCenter[1] = cl.getHeight()/2;
26974516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                mapPointFromChildToSelf(cl, cellLayoutCenter);
26984516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26994516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                touchXy[0] = originX + offsetX;
27004516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                touchXy[1] = originY + offsetY;
27014516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
27024516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // Calculate the distance between the center of the CellLayout
27034516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // and the touch point
27044516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                float dist = squaredDistance(touchXy, cellLayoutCenter);
27054516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
27064516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                if (dist < smallestDistSoFar) {
27070280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    smallestDistSoFar = dist;
2708a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                    bestMatchingScreen = cl;
2709a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                }
27104516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            }
2711a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        }
2712a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        return bestMatchingScreen;
2713a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    }
2714a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
2715440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy    public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
2716440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            DragView dragView, Object dragInfo) {
2717d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        // When touch is inside the scroll area, skip dragOver actions for the current screen
2718d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (!mInScrollArea) {
2719d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            CellLayout layout;
2720d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            int originX = x - xOffset;
2721d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            int originY = y - yOffset;
2722d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            boolean shrunken = mIsSmall || mIsInUnshrinkAnimation;
2723d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (shrunken) {
27240bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragView = dragView;
27250bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragOriginX = originX;
27260bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragOriginY = originY;
27270bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragXOffset = xOffset;
27280bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragYOffset = yOffset;
27290bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                layout = findMatchingPageForDragOver(dragView, originX, originY, xOffset, yOffset);
2730d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka
2731d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                if (layout != mDragTargetLayout) {
2732d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    if (mDragTargetLayout != null) {
273333945b21544bc98381df17726a3537c292d8c985Michael Jurka                        mDragTargetLayout.setIsDragOverlapping(false);
2734c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka                        mSpringLoadedDragController.onDragExit();
2735d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    }
2736d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    mDragTargetLayout = layout;
2737707de2828c14a1451aa08b8c5c48046a89aef839Winson Chung                    // In spring-loaded mode, we still want the user to be able to hover over a
2738707de2828c14a1451aa08b8c5c48046a89aef839Winson Chung                    // full screen (which is traditionally set to not accept drops) if they want to
2739707de2828c14a1451aa08b8c5c48046a89aef839Winson Chung                    // get to pages beyond the screen that is full.
2740707de2828c14a1451aa08b8c5c48046a89aef839Winson Chung                    boolean allowDragOver = (mDragTargetLayout != null) &&
2741707de2828c14a1451aa08b8c5c48046a89aef839Winson Chung                            (mDragTargetLayout.getAcceptsDrops() ||
2742707de2828c14a1451aa08b8c5c48046a89aef839Winson Chung                                    (mShrinkState == ShrinkState.SPRING_LOADED));
2743707de2828c14a1451aa08b8c5c48046a89aef839Winson Chung                    if (allowDragOver) {
274433945b21544bc98381df17726a3537c292d8c985Michael Jurka                        mDragTargetLayout.setIsDragOverlapping(true);
27450bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                        mSpringLoadedDragController.onDragEnter(
27460bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                                mDragTargetLayout, mShrinkState == ShrinkState.SPRING_LOADED);
2747d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    }
2748d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
2749d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            } else {
2750d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                layout = getCurrentDropLayout();
2751d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                if (layout != mDragTargetLayout) {
2752d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    if (mDragTargetLayout != null) {
2753d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                        mDragTargetLayout.onDragExit();
2754d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    }
2755d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    layout.onDragEnter();
2756d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    mDragTargetLayout = layout;
2757d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                }
2758d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
2759d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (!shrunken || mShrinkState == ShrinkState.SPRING_LOADED) {
2760d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                layout = getCurrentDropLayout();
2761d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka
2762d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                final ItemInfo item = (ItemInfo)dragInfo;
2763d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                if (dragInfo instanceof LauncherAppWidgetInfo) {
2764d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo)dragInfo;
2765d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka
2766d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    if (widgetInfo.spanX == -1) {
2767d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        // Calculate the grid spans needed to fit this widget
2768d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        int[] spans = layout.rectToCell(
2769d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                                widgetInfo.minWidth, widgetInfo.minHeight, null);
2770d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        item.spanX = spans[0];
2771d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        item.spanY = spans[1];
2772d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    }
2773d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
2774a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
2775d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                if (source instanceof AllAppsPagedView) {
2776d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    // This is a hack to fix the point used to determine which cell an icon from
2777d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    // the all apps screen is over
2778d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    if (item != null && item.spanX == 1 && layout != null) {
2779d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        int dragRegionLeft = (dragView.getWidth() - layout.getCellWidth()) / 2;
2780d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka
2781d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        originX += dragRegionLeft - dragView.getDragRegionLeft();
2782d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        if (dragView.getDragRegionWidth() != layout.getCellWidth()) {
2783d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                            dragView.setDragRegion(dragView.getDragRegionLeft(),
2784d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                                    dragView.getDragRegionTop(),
2785d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                                    layout.getCellWidth(),
2786d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                                    dragView.getDragRegionHeight());
2787d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        }
2788d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    }
278962bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                } else if (source == this) {
279062bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    // When dragging from the workspace, the drag view is slightly bigger than
279162bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    // the original view, and offset vertically. Adjust to account for this.
279262bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    final View origView = mDragInfo.cell;
279362bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    originX += (dragView.getMeasuredWidth() - origView.getWidth()) / 2;
279462bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    originY += (dragView.getMeasuredHeight() - origView.getHeight()) / 2
279562bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                            + dragView.getOffsetY();
2796a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                }
27971262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
2798d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                if (mDragTargetLayout != null) {
2799d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    final View child = (mDragInfo == null) ? null : mDragInfo.cell;
2800d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    float[] localOrigin = { originX, originY };
2801d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    mapPointFromSelfToChild(mDragTargetLayout, localOrigin, null);
2802d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    mDragTargetLayout.visualizeDropLocation(child, mDragOutline,
2803d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                            (int) localOrigin[0], (int) localOrigin[1], item.spanX, item.spanY);
2804d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
28051262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy            }
2806976ebec9e31643d3513f9f0de2b433d9aa186ce9Patrick Dubroy        }
280731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
280831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2809e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    private void doDragExit() {
2810d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mWasSpringLoadedOnDragExit = mShrinkState == ShrinkState.SPRING_LOADED;
28116569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        if (mDragTargetLayout != null) {
28120280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            mDragTargetLayout.onDragExit();
28136569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        }
28141262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        if (!mIsPageMoving) {
28151262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy            hideOutlines();
28161262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
2817d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        if (mShrinkState == ShrinkState.SPRING_LOADED) {
2818d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            mLauncher.exitSpringLoadedDragMode();
2819d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        }
282008ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        clearAllHovers();
282131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
282231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2823e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    public void onDragExit(DragSource source, int x, int y, int xOffset,
2824e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            int yOffset, DragView dragView, Object dragInfo) {
2825e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy        doDragExit();
2826e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    }
2827e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy
2828a34abf8c781485b788fddacb352d586bffca886cWinson Chung    @Override
2829a34abf8c781485b788fddacb352d586bffca886cWinson Chung    public void getHitRect(Rect outRect) {
2830a34abf8c781485b788fddacb352d586bffca886cWinson Chung        // We want the workspace to have the whole area of the display (it will find the correct
2831a34abf8c781485b788fddacb352d586bffca886cWinson Chung        // cell layout to drop to in the existing drag/drop logic.
2832a34abf8c781485b788fddacb352d586bffca886cWinson Chung        final Display d = mLauncher.getWindowManager().getDefaultDisplay();
2833a34abf8c781485b788fddacb352d586bffca886cWinson Chung        outRect.set(0, 0, d.getWidth(), d.getHeight());
2834a34abf8c781485b788fddacb352d586bffca886cWinson Chung    }
2835a34abf8c781485b788fddacb352d586bffca886cWinson Chung
28362b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy    /**
28372b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     * Add the item specified by dragInfo to the given layout.
28382b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     * @return true if successful
28392b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     */
2840120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen    public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) {
2841120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen        if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) {
2842bbaa75c8c432c46c00ee2eb836e438b3774d6709Patrick Dubroy            onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false);
28432b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy            return true;
28442b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy        }
28450280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        mLauncher.showOutOfSpaceMessage();
28462b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy        return false;
28472b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy    }
28482b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy
2849120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen    /**
2850120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * Drop an item that didn't originate on one of the workspace screens.
2851120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * It may have come from Launcher (e.g. from all apps or customize), or it may have
2852120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * come from another app altogether.
2853120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     *
2854120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * NOTE: This can also be called when we are outside of a drag event, when we want
2855120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * to add an item to one of the workspace screens.
2856120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     */
2857c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka    private void onDropExternal(int[] touchXY, Object dragInfo,
2858aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            CellLayout cellLayout, boolean insertAtFirst) {
28590280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        int screen = indexOfChild(cellLayout);
28600280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        if (dragInfo instanceof PendingAddItemInfo) {
28610280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            PendingAddItemInfo info = (PendingAddItemInfo) dragInfo;
28620280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            // When dragging and dropping from customization tray, we deal with creating
28630280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            // widgets/shortcuts/folders in a slightly different way
28640280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            switch (info.itemType) {
28650280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
286655cef262f97749300c2f6e764da0b00cbcb78879Winson Chung                    mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) info, screen, touchXY);
28670280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    break;
28680280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
28690280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    mLauncher.addLiveFolderFromDrop(info.componentName, screen, touchXY);
28700280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    break;
28710280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
28720280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    mLauncher.processShortcutFromDrop(info.componentName, screen, touchXY);
28730280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    break;
28740280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                default:
28750280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    throw new IllegalStateException("Unknown item type: " + info.itemType);
28760280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            }
28770280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            cellLayout.onDragExit();
28789c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka        } else {
28799c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            // This is for other drag/drop cases, like dragging from All Apps
28809c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            ItemInfo info = (ItemInfo) dragInfo;
28819c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            View view = null;
288231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
28839c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            switch (info.itemType) {
28849c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
28859c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
28869c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                if (info.container == NO_ID && info instanceof ApplicationInfo) {
28879c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                    // Came from all apps -- make a copy
28889c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                    info = new ShortcutInfo((ApplicationInfo) info);
28899c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                }
28909c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                view = mLauncher.createShortcut(R.layout.application, cellLayout,
28919c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                        (ShortcutInfo) info);
28929c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                break;
28939c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
28949c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher,
28959c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                        cellLayout, (UserFolderInfo) info, mIconCache);
28969c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                break;
28979c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            default:
28989c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                throw new IllegalStateException("Unknown item type: " + info.itemType);
28999c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            }
290031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
29019c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            mTargetCell = new int[2];
2902c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            if (touchXY != null) {
29039c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                // when dragging and dropping, just find the closest free spot
2904c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                cellLayout.findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, mTargetCell);
29059c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            } else {
29069c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                cellLayout.findCellForSpan(mTargetCell, 1, 1);
290731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2908aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            addInScreen(view, indexOfChild(cellLayout), mTargetCell[0],
2909aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    mTargetCell[1], info.spanX, info.spanY, insertAtFirst);
2910d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            boolean animateDrop = !mWasSpringLoadedOnDragExit;
2911d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            cellLayout.onDropChild(view, animateDrop);
2912d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            cellLayout.animateDrop();
29136569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
291431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2915af44209bfa60da3c7ab49b7f508f9effd316ee41Michael Jurka            LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
29160280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
2917aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    lp.cellX, lp.cellY);
2918af44209bfa60da3c7ab49b7f508f9effd316ee41Michael Jurka        }
291931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
2920aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
292170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
292270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Return the current {@link CellLayout}, correctly picking the destination
292370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * screen while a scroll is in progress.
292470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
29255f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy    public CellLayout getCurrentDropLayout() {
29265f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy        return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage);
292770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
292831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
292970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
29300280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * Return the current CellInfo describing our current drag; this method exists
29310280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * so that Launcher can sync this object with the correct info when the activity is created/
29320280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * destroyed
29330280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     *
29340280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     */
29350280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    public CellLayout.CellInfo getDragInfo() {
29360280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return mDragInfo;
29370280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
29380280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
29390280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    /**
294070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Calculate the nearest cell where the given object would be dropped.
294170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
29426a1435d78d5133b1f37274c4d358bf6d22e10229Michael Jurka    private int[] findNearestVacantArea(int pixelX, int pixelY,
294370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) {
29446569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
29455f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        int localPixelX = pixelX - (layout.getLeft() - mScrollX);
29465f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        int localPixelY = pixelY - (layout.getTop() - mScrollY);
29476569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
294870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        // Find the best target drop location
29490280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return layout.findNearestVacantArea(
2950fc9f07d42511231a26fa182c32e2efaa0f41d478Michael Jurka                localPixelX, localPixelY, spanX, spanY, ignoreView, recycle);
295170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
2952aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
295331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void setLauncher(Launcher launcher) {
295431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mLauncher = launcher;
2955c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka        mSpringLoadedDragController = new SpringLoadedDragController(mLauncher);
295688127038178b3bbf0eb91103a31e682cc0615074Winson Chung
295788127038178b3bbf0eb91103a31e682cc0615074Winson Chung        mCustomizationDrawer = mLauncher.findViewById(R.id.customization_drawer);
2958760e5375f003accf04f789e90a919ed476d4c335Winson Chung        if (mCustomizationDrawer != null) {
2959760e5375f003accf04f789e90a919ed476d4c335Winson Chung            mCustomizationDrawerContent =
2960760e5375f003accf04f789e90a919ed476d4c335Winson Chung                mCustomizationDrawer.findViewById(com.android.internal.R.id.tabcontent);
2961760e5375f003accf04f789e90a919ed476d4c335Winson Chung        }
296231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
296331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
296400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    public void setDragController(DragController dragController) {
296500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController = dragController;
296631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
296731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2968e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    /**
2969e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy     * Called at the end of a drag which originated on the workspace.
2970e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy     */
29715f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy    public void onDropCompleted(View target, Object dragInfo, boolean success) {
2972aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        if (success) {
297331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (target != this && mDragInfo != null) {
297431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
297531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                cellLayout.removeView(mDragInfo.cell);
297600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                if (mDragInfo.cell instanceof DropTarget) {
297700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                    mDragController.removeDropTarget((DropTarget)mDragInfo.cell);
297800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                }
2979aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                // final Object tag = mDragInfo.cell.getTag();
298031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2981ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        } else if (mDragInfo != null) {
2982e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // NOTE: When 'success' is true, onDragExit is called by the DragController before
2983e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // calling onDropCompleted(). We call it ourselves here, but maybe this should be
2984e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // moved into DragController.cancelDrag().
2985e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            doDragExit();
2986e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            ((CellLayout) getChildAt(mDragInfo.screen)).onDropChild(mDragInfo.cell, false);
298731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
2988400438b79fe412cb625c96297edeea9c6155349eWinson Chung        mLauncher.unlockScreenOrientation();
29894be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        mDragOutline = null;
299031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = null;
299131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
299231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2993a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    @Override
2994a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    public void onDragViewVisible() {
2995a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy        ((View) mDragInfo.cell).setVisibility(View.GONE);
2996a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    }
2997a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy
29980280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    public boolean isDropEnabled() {
29990280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return true;
30000280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
30010280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
30020142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
30030142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void onRestoreInstanceState(Parcelable state) {
30040142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.onRestoreInstanceState(state);
30050142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
30060142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
30070142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
30080142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
300931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollLeft() {
3010c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
30110142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.scrollLeft();
301231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
301331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
301431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
30150142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
301631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollRight() {
3017c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
30180142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.scrollRight();
301931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
302031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
3021138a04170d964da9cdec228e95b976875ae52481Karl Rosaen
30221262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    @Override
30231262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    public void onEnterScrollArea(int direction) {
3024d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
3025d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            mInScrollArea = true;
302654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            mPendingScrollDirection = direction;
302754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
302854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1);
302954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            final CellLayout layout = (CellLayout) getChildAt(page);
303054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
303154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (layout != null) {
303233945b21544bc98381df17726a3537c292d8c985Michael Jurka                layout.setIsDragOverlapping(true);
30331262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
30340207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                if (mDragTargetLayout != null) {
30350207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    mDragTargetLayout.onDragExit();
30360207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    mDragTargetLayout = null;
30370207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                }
303870b9530f3147663d38875260b48d931793b7d378Patrick Dubroy                // In portrait, need to redraw the edge glow when entering the scroll area
303970b9530f3147663d38875260b48d931793b7d378Patrick Dubroy                if (getHeight() > getWidth()) {
304070b9530f3147663d38875260b48d931793b7d378Patrick Dubroy                    invalidate();
304170b9530f3147663d38875260b48d931793b7d378Patrick Dubroy                }
3042d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            }
30431262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
30441262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    }
30451262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
304608ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy    private void clearAllHovers() {
304708ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        final int childCount = getChildCount();
304808ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        for (int i = 0; i < childCount; i++) {
304933945b21544bc98381df17726a3537c292d8c985Michael Jurka            ((CellLayout) getChildAt(i)).setIsDragOverlapping(false);
305008ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        }
3051c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka        mSpringLoadedDragController.onDragExit();
305270b9530f3147663d38875260b48d931793b7d378Patrick Dubroy
305370b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        // In portrait, workspace is responsible for drawing the edge glow on adjacent pages,
305470b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        // so we need to redraw the workspace when this may have changed.
305570b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        if (getHeight() > getWidth()) {
305670b9530f3147663d38875260b48d931793b7d378Patrick Dubroy            invalidate();
305770b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        }
305808ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy    }
305908ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy
30601262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    @Override
30611262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    public void onExitScrollArea() {
3062d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (mInScrollArea) {
3063d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            mInScrollArea = false;
306454fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            mPendingScrollDirection = DragController.SCROLL_NONE;
306508ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy            clearAllHovers();
30661262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
30671262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    }
30681262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
306931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Folder getFolderForTag(Object tag) {
3070dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
307131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
30726e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            ViewGroup currentScreen = ((CellLayout) getChildAt(screen)).getChildrenLayout();
307331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
307431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
307531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
307631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
307731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
307831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    Folder f = (Folder) child;
3079aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    if (f.getInfo() == tag && f.getInfo().opened) {
308031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        return f;
308131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
308231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
308331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
308431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
308531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
308631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
308731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
308831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public View getViewForTag(Object tag) {
308931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screenCount = getChildCount();
309031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
30916e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            ViewGroup currentScreen = ((CellLayout) getChildAt(screen)).getChildrenLayout();
309231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
309331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
309431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
309531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (child.getTag() == tag) {
309631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    return child;
309731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
309831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
309931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
310031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
310131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
310231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
310331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
310464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato    void removeItems(final ArrayList<ApplicationInfo> apps) {
3105dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
31065c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy        final PackageManager manager = getContext().getPackageManager();
3107629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy        final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext());
3108574d20ec84551370987dde530c27ec493bdef564Romain Guy
310964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        final HashSet<String> packageNames = new HashSet<String>();
311064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        final int appCount = apps.size();
311164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        for (int i = 0; i < appCount; i++) {
311264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato            packageNames.add(apps.get(i).componentName.getPackageName());
311364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        }
311464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato
3115dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
31167a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung            final CellLayout layoutParent = (CellLayout) getChildAt(i);
31177a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung            final ViewGroup layout = layoutParent.getChildrenLayout();
3118629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
3119629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            // Avoid ANRs by treating each screen separately
3120629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            post(new Runnable() {
3121629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                public void run() {
3122629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    final ArrayList<View> childrenToRemove = new ArrayList<View>();
3123629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childrenToRemove.clear();
3124aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3125629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    int childCount = layout.getChildCount();
3126629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
3127629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        final View view = layout.getChildAt(j);
3128629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        Object tag = view.getTag();
3129aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
31300589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                        if (tag instanceof ShortcutInfo) {
31310589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ShortcutInfo info = (ShortcutInfo) tag;
3132629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final Intent intent = info.intent;
3133629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ComponentName name = intent.getComponent();
3134aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
313564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
313664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
313764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(name.getPackageName())) {
313864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
313964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        childrenToRemove.add(view);
314064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
314164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3142629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3143629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof UserFolderInfo) {
3144629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final UserFolderInfo info = (UserFolderInfo) tag;
31450589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ArrayList<ShortcutInfo> contents = info.contents;
31460589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ArrayList<ShortcutInfo> toRemove = new ArrayList<ShortcutInfo>(1);
3147629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final int contentsCount = contents.size();
3148629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            boolean removedFromFolder = false;
3149aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3150629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            for (int k = 0; k < contentsCount; k++) {
31510589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                                final ShortcutInfo appInfo = contents.get(k);
3152629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final Intent intent = appInfo.intent;
3153629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final ComponentName name = intent.getComponent();
3154aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
315564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
315664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    for (String packageName: packageNames) {
315764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        if (packageName.equals(name.getPackageName())) {
315864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                            toRemove.add(appInfo);
315973013bf94f49ffbacba2b8300f6a2dd4eeebbd13Brad Fitzpatrick                                            LauncherModel.deleteItemFromDatabase(mLauncher, appInfo);
316064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                            removedFromFolder = true;
316164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        }
316264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
3163629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                }
3164629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3165aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3166629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            contents.removeAll(toRemove);
3167629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            if (removedFromFolder) {
3168629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final Folder folder = getOpenFolder();
3169aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                if (folder != null)
3170aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                    folder.notifyDataSetChanged();
3171629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3172629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof LiveFolderInfo) {
3173629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final LiveFolderInfo info = (LiveFolderInfo) tag;
3174629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final Uri uri = info.uri;
3175629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ProviderInfo providerInfo = manager.resolveContentProvider(
3176629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    uri.getAuthority(), 0);
3177629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
3178f11079b11e98912ed56546eaa300efd06c6eb917Joe Onorato                            if (providerInfo != null) {
317964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
318064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(providerInfo.packageName)) {
318164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
3182aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                        childrenToRemove.add(view);
318364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
318464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3185629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3186629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof LauncherAppWidgetInfo) {
3187629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag;
3188629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final AppWidgetProviderInfo provider =
3189629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    widgets.getAppWidgetInfo(info.appWidgetId);
3190e1cc6c3745c9ba721b6ab888d74c9d9e1d13ea6aDaniel Sandler                            if (provider != null) {
319164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
319264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(provider.provider.getPackageName())) {
319364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
3194aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                        childrenToRemove.add(view);
319564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
319664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3197629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3198574d20ec84551370987dde530c27ec493bdef564Romain Guy                        }
3199574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
3200aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3201629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childCount = childrenToRemove.size();
3202629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
3203629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        View child = childrenToRemove.get(j);
32047a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        // Note: We can not remove the view directly from CellLayoutChildren as this
32057a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        // does not re-mark the spaces as unoccupied.
32067a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        layoutParent.removeViewInLayout(child);
3207629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        if (child instanceof DropTarget) {
3208629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            mDragController.removeDropTarget((DropTarget)child);
3209629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        }
3210574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
3211aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3212629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    if (childCount > 0) {
3213629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.requestLayout();
3214629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.invalidate();
32155c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    }
321631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
3217629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            });
321831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
321931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
3220f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
322164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato    void updateShortcuts(ArrayList<ApplicationInfo> apps) {
3222dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
3223dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
32246e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            final ViewGroup layout = ((CellLayout) getChildAt(i)).getChildrenLayout();
3225f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            int childCount = layout.getChildCount();
3226f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            for (int j = 0; j < childCount; j++) {
3227f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                final View view = layout.getChildAt(j);
3228f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                Object tag = view.getTag();
32290589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                if (tag instanceof ShortcutInfo) {
32300589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                    ShortcutInfo info = (ShortcutInfo)tag;
3231f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // We need to check for ACTION_MAIN otherwise getComponent() might
3232f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // return null for some shortcuts (for instance, for shortcuts to
3233f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // web pages.)
3234f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final Intent intent = info.intent;
3235f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final ComponentName name = intent.getComponent();
3236f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
323764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
323864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                        final int appCount = apps.size();
3239aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                        for (int k = 0; k < appCount; k++) {
324064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            ApplicationInfo app = apps.get(k);
324164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            if (app.componentName.equals(name)) {
324264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                info.setIcon(mIconCache.getIcon(info.intent));
324364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null,
324464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        new FastBitmapDrawable(info.getIcon(mIconCache)),
324564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        null, null);
324664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
324764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                        }
3248f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    }
3249f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                }
3250f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            }
3251f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        }
3252f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project    }
3253f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
325414f122bf847e50a3e7730ccbe57abc25d086a01bJoe Onorato    void moveToDefaultScreen(boolean animate) {
3255c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
3256c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            mLauncher.showWorkspace(animate, (CellLayout)getChildAt(mDefaultPage));
3257c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        } else if (animate) {
3258c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            snapToPage(mDefaultPage);
3259c45b16862918a0c6c253bba12032165b030565afJoe Onorato        } else {
32600142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            setCurrentPage(mDefaultPage);
3261c45b16862918a0c6c253bba12032165b030565afJoe Onorato        }
32620142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        getChildAt(mDefaultPage).requestFocus();
326331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
326431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
32658a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    void setIndicators(Drawable previous, Drawable next) {
32668a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        mPreviousIndicator = previous;
32678a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        mNextIndicator = next;
32680142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        previous.setLevel(mCurrentPage);
32690142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        next.setLevel(mCurrentPage);
32708a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    }
32718a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy
32720142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
32730142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    public void syncPages() {
32740142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
327531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
32760142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
32770142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    public void syncPageItems(int page) {
327831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
32790142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
328031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project}
3281