Workspace.java revision 5c16f3ecd6b47bff3abbe40deb3d39c66a3b0012
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
198f573952b8729b4319043ae0908997ecd2d68951Dianne Hackbornimport android.app.WallpaperManager;
2031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.Context;
2131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.Intent;
2231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.ComponentName;
235c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guyimport android.content.pm.ProviderInfo;
2431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.res.TypedArray;
259c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onoratoimport android.content.pm.PackageManager;
2631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.graphics.Canvas;
2731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.graphics.Rect;
28f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Projectimport android.graphics.drawable.Drawable;
295c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guyimport android.net.Uri;
30080d9b614e609826dce2606f9e474af674ead933Joe Onoratoimport android.os.Parcelable;
31080d9b614e609826dce2606f9e474af674ead933Joe Onoratoimport android.os.Parcel;
3231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.util.AttributeSet;
3331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.MotionEvent;
3431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.VelocityTracker;
3531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.View;
3631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.ViewConfiguration;
3731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.ViewGroup;
3831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.ViewParent;
3931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.widget.Scroller;
40f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Projectimport android.widget.TextView;
4131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
4231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport java.util.ArrayList;
4331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
4431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project/**
4531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * The workspace is a wide area with a wallpaper and a finite number of screens. Each
4631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * screen contains a number of icons, folders or widgets the user can interact with.
4731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * A workspace is meant to be used with a fixed width only.
4831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */
4985a02a8d13eced310aee4c2a795e9c9c5435038fJoe Onoratopublic class Workspace extends ViewGroup implements DropTarget, DragSource, DragScroller {
50e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy    @SuppressWarnings({"UnusedDeclaration"})
513a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    private static final String TAG = "Launcher.Workspace";
5231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private static final int INVALID_SCREEN = -1;
5370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
5431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
5531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * The velocity at which a fling gesture will cause us to snap to the next screen
5631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
5731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private static final int SNAP_VELOCITY = 1000;
5831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
598f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    private final WallpaperManager mWallpaperManager;
608f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn
6131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mDefaultScreen;
6231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private boolean mFirstLayout = true;
6431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mCurrentScreen;
6631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mNextScreen = INVALID_SCREEN;
6731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private Scroller mScroller;
6831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private VelocityTracker mVelocityTracker;
6931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
7031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
7131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * CellInfo for the cell that is currently being dragged
7231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
7331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private CellLayout.CellInfo mDragInfo;
7470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
7570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
7670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Target drop area calculated during last acceptDrop call.
7770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
7870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTargetCell = null;
7931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
8031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private float mLastMotionX;
8131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private float mLastMotionY;
82f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
8331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private final static int TOUCH_STATE_REST = 0;
8431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private final static int TOUCH_STATE_SCROLLING = 1;
8531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
8631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mTouchState = TOUCH_STATE_REST;
8731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
8831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private OnLongClickListener mLongClickListener;
8931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
9031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private Launcher mLauncher;
9100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    private DragController mDragController;
9270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
9370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
9470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Cache of vacant cells, used during drag events and invalidated as needed.
9570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
9670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private CellLayout.CellInfo mVacantCache = null;
9770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
9831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int[] mTempCell = new int[2];
9970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTempEstimate = new int[2];
10031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
101a9c28f6f97a4b34d9527c786e3aa8f02d92d9e07Joe Onorato    private boolean mAllowLongPress = true;
10231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
10331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mTouchSlop;
104a206daaed1318005d1534cca2e4eeec56144d104Romain Guy    private int mMaximumVelocity;
10531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1068a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    private Drawable mPreviousIndicator;
1078a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    private Drawable mNextIndicator;
1088a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy
10931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
11031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
11131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
11231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
11331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param attrs The attribtues set containing the Workspace's customization values.
11431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
11531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs) {
11631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        this(context, attrs, 0);
11731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
11831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
11931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
12031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
12131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
12231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
12331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param attrs The attribtues set containing the Workspace's customization values.
12431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param defStyle Unused.
12531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
12631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs, int defStyle) {
12731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super(context, attrs, defStyle);
12831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1298f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn        mWallpaperManager = WallpaperManager.getInstance(context);
1308f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn
13131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.Workspace, defStyle, 0);
13231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDefaultScreen = a.getInt(R.styleable.Workspace_defaultScreen, 1);
13331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        a.recycle();
13431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1350d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato        setHapticFeedbackEnabled(false);
13631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        initWorkspace();
13731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
13831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
13931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
14031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Initializes various states for this workspace.
14131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
14231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private void initWorkspace() {
14331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mScroller = new Scroller(getContext());
14431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mCurrentScreen = mDefaultScreen;
14531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        Launcher.setScreen(mCurrentScreen);
14631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
147a206daaed1318005d1534cca2e4eeec56144d104Romain Guy        final ViewConfiguration configuration = ViewConfiguration.get(getContext());
148a206daaed1318005d1534cca2e4eeec56144d104Romain Guy        mTouchSlop = configuration.getScaledTouchSlop();
149a206daaed1318005d1534cca2e4eeec56144d104Romain Guy        mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
15031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
15131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
15231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
15331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index, LayoutParams params) {
15431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
15531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
15631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
15731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index, params);
15831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
15931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
16031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
16131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child) {
16231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
16331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
16431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
16531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child);
16631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
16731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
16831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
16931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index) {
17031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
17131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
17231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
17331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index);
17431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
17531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
17631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
17731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int width, int height) {
17831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
17931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
18031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
18131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, width, height);
18231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
18331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
18431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
18531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, LayoutParams params) {
18631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
18731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
18831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
18931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, params);
19031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
19131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
19231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
19331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return The open folder on the current screen, or null if there is none
19431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
19531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    Folder getOpenFolder() {
19631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout currentScreen = (CellLayout) getChildAt(mCurrentScreen);
19731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int count = currentScreen.getChildCount();
19831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
19931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            View child = currentScreen.getChildAt(i);
20031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
20131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
20231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return (Folder) child;
20331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
20431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
20531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
20631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
20731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
20831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    ArrayList<Folder> getOpenFolders() {
20931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int screens = getChildCount();
21031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        ArrayList<Folder> folders = new ArrayList<Folder>(screens);
21131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
21231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screens; screen++) {
21331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            CellLayout currentScreen = (CellLayout) getChildAt(screen);
21431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
21531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
21631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
21731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
21831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
21931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    folders.add((Folder) child);
22031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    break;
22131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
22231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
22331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
22431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
22531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return folders;
22631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
22731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
22831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    boolean isDefaultScreenShowing() {
22931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return mCurrentScreen == mDefaultScreen;
23031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
23131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
23231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
23331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Returns the index of the currently displayed screen.
23431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
23531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return The index of the currently displayed screen.
23631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
23731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    int getCurrentScreen() {
23831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return mCurrentScreen;
23931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
24031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
24131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
24231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Sets the current screen.
24331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
24431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param currentScreen
24531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
24631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void setCurrentScreen(int currentScreen) {
247c45b16862918a0c6c253bba12032165b030565afJoe Onorato        if (!mScroller.isFinished()) mScroller.abortAnimation();
2484c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
24931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mCurrentScreen = Math.max(0, Math.min(currentScreen, getChildCount() - 1));
25031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        scrollTo(mCurrentScreen * getWidth(), 0);
25131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        invalidate();
25231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
25331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
25431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
25531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the current screen. The position and dimension of
25631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
25731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
25831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
25931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
26031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
26131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
26231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
26331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
26431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInCurrentScreen(View child, int x, int y, int spanX, int spanY) {
26531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, mCurrentScreen, x, y, spanX, spanY, false);
26631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
26731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
26831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
26931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the current screen. The position and dimension of
27031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
27131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
27231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
27331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
27431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
27531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
27631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
27731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param insert When true, the child is inserted at the beginning of the children list.
27831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
27931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInCurrentScreen(View child, int x, int y, int spanX, int spanY, boolean insert) {
28031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, mCurrentScreen, x, y, spanX, spanY, insert);
28131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
28231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
28331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
28431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
28531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
28631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
28731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
28831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
28931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
29031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
29131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
29231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
29331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
29431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY) {
29531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, screen, x, y, spanX, spanY, false);
29631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
29731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
29831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
29931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
30031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
30131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
30231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
30331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
30431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
30531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
30631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
30731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
30831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param insert When true, the child is inserted at the beginning of the children list.
30931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
31031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY, boolean insert) {
31131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (screen < 0 || screen >= getChildCount()) {
31231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalStateException("The screen must be >= 0 and < " + getChildCount());
31331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
31431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3154c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
3164c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy
31731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout group = (CellLayout) getChildAt(screen);
31831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
31931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (lp == null) {
32031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
32131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
32231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellX = x;
32331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellY = y;
32431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellHSpan = spanX;
32531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellVSpan = spanY;
32631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
32731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        group.addView(child, insert ? 0 : -1, lp);
32831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof Folder)) {
3290d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato            child.setHapticFeedbackEnabled(false);
33031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            child.setOnLongClickListener(mLongClickListener);
33131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
33200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        if (child instanceof DropTarget) {
33300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            mDragController.addDropTarget((DropTarget)child);
33400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        }
33531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
33631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
33731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    CellLayout.CellInfo findAllVacantCells(boolean[] occupied) {
33831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout group = (CellLayout) getChildAt(mCurrentScreen);
33931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (group != null) {
34070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            return group.findAllVacantCells(occupied, null);
34131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
34231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
34331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
34431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3454c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy    private void clearVacantCache() {
3464c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        if (mVacantCache != null) {
3474c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy            mVacantCache.clearVacantCells();
3484c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy            mVacantCache = null;
3494c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        }
3504c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy    }
35131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
35231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
35331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Registers the specified listener on each screen contained in this workspace.
35431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
35531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param l The listener used to respond to long clicks.
35631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
35731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
35831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void setOnLongClickListener(OnLongClickListener l) {
35931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mLongClickListener = l;
36031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
36131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
36231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            getChildAt(i).setOnLongClickListener(l);
36331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
36431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
36531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3668f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    private void updateWallpaperOffset() {
367798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy        updateWallpaperOffset(getChildAt(getChildCount() - 1).getRight() - (mRight - mLeft));
368798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy    }
369798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy
370798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy    private void updateWallpaperOffset(int scrollRange) {
371c07c79b10b663a02ef67da57bdda60a1ea299eb5Marco Nelissen        mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 0 );
37249cdb1b18c12a81cac9817c4800e43d5b507e0c4Dianne Hackborn        mWallpaperManager.setWallpaperOffsets(getWindowToken(), mScrollX / (float) scrollRange, 0);
3738f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    }
3748f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn
37531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
37631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void computeScroll() {
37731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (mScroller.computeScrollOffset()) {
37831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mScrollX = mScroller.getCurrX();
37931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mScrollY = mScroller.getCurrY();
3808f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn            updateWallpaperOffset();
38131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            postInvalidate();
38231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else if (mNextScreen != INVALID_SCREEN) {
38331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mCurrentScreen = Math.max(0, Math.min(mNextScreen, getChildCount() - 1));
3848a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy            mPreviousIndicator.setLevel(mCurrentScreen);
3858a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy            mNextIndicator.setLevel(mCurrentScreen);
38631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            Launcher.setScreen(mCurrentScreen);
38731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mNextScreen = INVALID_SCREEN;
38831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            clearChildrenCache();
38931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
39031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
39131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
39231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
39331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected void dispatchDraw(Canvas canvas) {
3947376faefbbcbe30cc4e3f706ab95c254a4707d98The Android Open Source Project        boolean restore = false;
395e77c08d15f23c403293dbb40c6a36967de822c89Joe Onorato        int restoreCount = 0;
396e77c08d15f23c403293dbb40c6a36967de822c89Joe Onorato
39731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // ViewGroup.dispatchDraw() supports many features we don't need:
39831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // clip to padding, layout animation, animation listener, disappearing
39931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // children, etc. The following implementation attempts to fast-track
40031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // the drawing dispatch by drawing only what we know needs to be drawn.
40131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
402f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        boolean fastDraw = mTouchState != TOUCH_STATE_SCROLLING && mNextScreen == INVALID_SCREEN;
40331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // If we are not scrolling or flinging, draw only the current screen
40431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (fastDraw) {
40531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            drawChild(canvas, getChildAt(mCurrentScreen), getDrawingTime());
40631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
40731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final long drawingTime = getDrawingTime();
40831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            // If we are flinging, draw only the current screen and the target screen
40931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mNextScreen >= 0 && mNextScreen < getChildCount() &&
41031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    Math.abs(mCurrentScreen - mNextScreen) == 1) {
41131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                drawChild(canvas, getChildAt(mCurrentScreen), drawingTime);
41231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                drawChild(canvas, getChildAt(mNextScreen), drawingTime);
41331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
41431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // If we are scrolling, draw all of our children
41531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int count = getChildCount();
41631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                for (int i = 0; i < count; i++) {
41731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    drawChild(canvas, getChildAt(i), drawingTime);
41831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
41931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
42031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
4217376faefbbcbe30cc4e3f706ab95c254a4707d98The Android Open Source Project
4227376faefbbcbe30cc4e3f706ab95c254a4707d98The Android Open Source Project        if (restore) {
423e77c08d15f23c403293dbb40c6a36967de822c89Joe Onorato            canvas.restoreToCount(restoreCount);
4247376faefbbcbe30cc4e3f706ab95c254a4707d98The Android Open Source Project        }
42531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
42631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
42700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    protected void onAttachedToWindow() {
42800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        super.onAttachedToWindow();
42900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController.setWindowToken(getWindowToken());
43000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    }
43100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato
43231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
43331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
43431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
43531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
43631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int width = MeasureSpec.getSize(widthMeasureSpec);
43731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
43831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (widthMode != MeasureSpec.EXACTLY) {
43931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalStateException("Workspace can only be used in EXACTLY mode.");
44031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
44131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
44231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
44331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (heightMode != MeasureSpec.EXACTLY) {
44431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalStateException("Workspace can only be used in EXACTLY mode.");
44531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
44631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
44731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // The children are given the same width and height as the workspace
44831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
44931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
45031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            getChildAt(i).measure(widthMeasureSpec, heightMeasureSpec);
45131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
45231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
4533a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
45431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (mFirstLayout) {
4553a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron            setHorizontalScrollBarEnabled(false);
45631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            scrollTo(mCurrentScreen * width, 0);
4573a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron            setHorizontalScrollBarEnabled(true);
458798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy            updateWallpaperOffset(width * (getChildCount() - 1));
45931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mFirstLayout = false;
46031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
46131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
46231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
46331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
46431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
46531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int childLeft = 0;
46631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
46731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
46831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
46931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final View child = getChildAt(i);
47031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (child.getVisibility() != View.GONE) {
47131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int childWidth = child.getMeasuredWidth();
47231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                child.layout(childLeft, 0, childLeft + childWidth, child.getMeasuredHeight());
47331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                childLeft += childWidth;
47431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
47531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
47631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
47731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
47831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
47931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) {
48031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screen = indexOfChild(child);
48131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (screen != mCurrentScreen || !mScroller.isFinished()) {
48231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (!mLauncher.isWorkspaceLocked()) {
48331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                snapToScreen(screen);
48431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
48531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return true;
48631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
48731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return false;
48831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
48931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
49031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
49131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
492678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
49331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
49431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (openFolder != null) {
49531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return openFolder.requestFocus(direction, previouslyFocusedRect);
49631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
49731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                int focusableScreen;
49831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (mNextScreen != INVALID_SCREEN) {
49931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    focusableScreen = mNextScreen;
50031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else {
50131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    focusableScreen = mCurrentScreen;
50231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
50331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                getChildAt(focusableScreen).requestFocus(direction, previouslyFocusedRect);
50431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
50531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
50631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return false;
50731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
50831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
50931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
51031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean dispatchUnhandledMove(View focused, int direction) {
51131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (direction == View.FOCUS_LEFT) {
51231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (getCurrentScreen() > 0) {
51331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                snapToScreen(getCurrentScreen() - 1);
51431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return true;
51531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
51631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else if (direction == View.FOCUS_RIGHT) {
51731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (getCurrentScreen() < getChildCount() - 1) {
51831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                snapToScreen(getCurrentScreen() + 1);
51931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return true;
52031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
52131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
52231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return super.dispatchUnhandledMove(focused, direction);
52331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
52431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
52531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
526c2e24c0a37ddeab930f731c062705d435e477f75Romain Guy    public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
527678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
52831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
52931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (openFolder == null) {
53031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                getChildAt(mCurrentScreen).addFocusables(views, direction);
53131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (direction == View.FOCUS_LEFT) {
53231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (mCurrentScreen > 0) {
53331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        getChildAt(mCurrentScreen - 1).addFocusables(views, direction);
53431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
53531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else if (direction == View.FOCUS_RIGHT){
53631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (mCurrentScreen < getChildCount() - 1) {
53731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        getChildAt(mCurrentScreen + 1).addFocusables(views, direction);
53831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
53931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
54031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
54131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                openFolder.addFocusables(views, direction);
54231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
54331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
54431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
54531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
54631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
5477bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    public boolean dispatchTouchEvent(MotionEvent ev) {
5487bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
5497bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato            if (mLauncher.isWorkspaceLocked() || mLauncher.isAllAppsVisible()) {
5507bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato                return false;
5517bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato            }
5527bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        }
5537bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        return super.dispatchTouchEvent(ev);
5547bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    }
5557bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato
5567bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    @Override
55731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean onInterceptTouchEvent(MotionEvent ev) {
55868ba5ca5d7f17df65f0cc8813603de2d3f215bf4Joe Onorato        final boolean workspaceLocked = mLauncher.isWorkspaceLocked();
55968ba5ca5d7f17df65f0cc8813603de2d3f215bf4Joe Onorato        final boolean allAppsVisible = mLauncher.isAllAppsVisible();
56068ba5ca5d7f17df65f0cc8813603de2d3f215bf4Joe Onorato        if (workspaceLocked || allAppsVisible) {
5617c312c15e33b6cffbda707429e88ade498fc9f5eJoe Onorato            return false; // We don't want the events.  Let them fall through to the all apps view.
56231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
56331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
56431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        /*
56531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * This method JUST determines whether we want to intercept the motion.
56631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * If we return true, onTouchEvent will be called and we do the actual
56731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * scrolling there.
56831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         */
56931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
57031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        /*
57131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * Shortcut the most recurring case: the user is in the dragging
57231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * state and he is moving his finger.  We want to intercept this
57331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * motion.
57431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         */
57531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int action = ev.getAction();
57631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if ((action == MotionEvent.ACTION_MOVE) && (mTouchState != TOUCH_STATE_REST)) {
57731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return true;
57831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
57931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
58031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final float x = ev.getX();
58131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final float y = ev.getY();
58231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
58331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        switch (action) {
58431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            case MotionEvent.ACTION_MOVE:
58531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                /*
58631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
58731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * whether the user has moved far enough from his original down touch.
58831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 */
58931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
59031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                /*
59131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * Locally do absolute value. mLastMotionX is set to the y value
59231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * of the down event.
59331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 */
59431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int xDiff = (int) Math.abs(x - mLastMotionX);
59531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int yDiff = (int) Math.abs(y - mLastMotionY);
59631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
59731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int touchSlop = mTouchSlop;
59831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                boolean xMoved = xDiff > touchSlop;
59931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                boolean yMoved = yDiff > touchSlop;
60031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
60131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (xMoved || yMoved) {
60231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
60331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (xMoved) {
60431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        // Scroll if the user moved far enough along the X axis
60531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        mTouchState = TOUCH_STATE_SCROLLING;
6063a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron                        enableChildrenCache(mCurrentScreen - 1, mCurrentScreen + 1);
60731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
60831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // Either way, cancel any pending longpress
60931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (mAllowLongPress) {
61031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        mAllowLongPress = false;
61131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        // Try canceling the long press. It could also have been scheduled
61231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        // by a distant descendant, so use the mAllowLongPress flag to block
61331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        // everything
61431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        final View currentScreen = getChildAt(mCurrentScreen);
61531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        currentScreen.cancelLongPress();
61631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
61731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
61831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                break;
61931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
62031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            case MotionEvent.ACTION_DOWN:
62131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // Remember location of down touch
62231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mLastMotionX = x;
62331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mLastMotionY = y;
62431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mAllowLongPress = true;
62531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
62631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                /*
62731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * If being flinged and user touches the screen, initiate drag;
62831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * otherwise don't.  mScroller.isFinished should be false when
62931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * being flinged.
63031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 */
63131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST : TOUCH_STATE_SCROLLING;
63231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                break;
63331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
63431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            case MotionEvent.ACTION_CANCEL:
63531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            case MotionEvent.ACTION_UP:
636f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
637f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                if (mTouchState != TOUCH_STATE_SCROLLING) {
638f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
639f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                    final CellLayout currentScreen = (CellLayout)getChildAt(mCurrentScreen);
640f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                    if (!currentScreen.lastDownOnOccupiedCell()) {
641f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                        // Send a tap to the wallpaper if the last down was on empty space
642f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                        mWallpaperManager.sendWallpaperCommand(getWindowToken(),
643f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                                "android.wallpaper.tap", (int) ev.getX(), (int) ev.getY(), 0, null);
644f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                    }
645f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                }
646f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
64731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // Release the drag
64831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                clearChildrenCache();
64931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mTouchState = TOUCH_STATE_REST;
65031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mAllowLongPress = false;
651f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
65231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                break;
65331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
65431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
65531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        /*
65631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * The only time we want to intercept motion events is if we are in the
65731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * drag mode.
65831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         */
65931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return mTouchState != TOUCH_STATE_REST;
66031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
66131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6623a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    /**
6633a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     * If one of our descendant views decides that it could be focused now, only
6643a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     * pass that along if it's on the current screen.
6653a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     *
6663a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     * This happens when live folders requery, and if they're off screen, they
6673a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     * end up calling requestFocus, which pulls it on screen.
6683a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     */
6693a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    @Override
6703a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    public void focusableViewAvailable(View focused) {
6713a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato        View current = getChildAt(mCurrentScreen);
6723a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato        View v = focused;
6733a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato        while (true) {
6743a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            if (v == current) {
6753a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                super.focusableViewAvailable(focused);
6763a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                return;
6773a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            }
6783a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            if (v == this) {
6793a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                return;
6803a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            }
6813a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            ViewParent parent = v.getParent();
6823a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            if (parent instanceof View) {
6833a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                v = (View)v.getParent();
6843a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            } else {
6853a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                return;
6863a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            }
6873a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato        }
6883a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    }
6893a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato
6903a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron    void enableChildrenCache(int fromScreen, int toScreen) {
6913a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        if (fromScreen > toScreen) {
6923a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron            fromScreen = toScreen;
6933a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron            toScreen = fromScreen;
6943a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        }
6953a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
69631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
6973a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
6983a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        fromScreen = Math.max(fromScreen, 0);
6993a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        toScreen = Math.min(toScreen, count - 1);
7003a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
7013a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        for (int i = fromScreen; i <= toScreen; i++) {
70231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
70331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(true);
70431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawingCacheEnabled(true);
70531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
70631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
70731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
70831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void clearChildrenCache() {
70931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
71031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
71131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
71231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(false);
71331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
71431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
71531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
71631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
71731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean onTouchEvent(MotionEvent ev) {
718f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
7192bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato        if (mLauncher.isWorkspaceLocked()) {
7202bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            return false; // We don't want the events.  Let them fall through to the all apps view.
7212bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato        }
7222bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato        if (mLauncher.isAllAppsVisible()) {
7232bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            // Cancel any scrolling that is in progress.
7242bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            if (!mScroller.isFinished()) {
7252bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato                mScroller.abortAnimation();
7262bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            }
7272bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            snapToScreen(mCurrentScreen);
7287c312c15e33b6cffbda707429e88ade498fc9f5eJoe Onorato            return false; // We don't want the events.  Let them fall through to the all apps view.
72931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
73031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
73131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (mVelocityTracker == null) {
73231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mVelocityTracker = VelocityTracker.obtain();
73331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
73431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mVelocityTracker.addMovement(ev);
73531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
73631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int action = ev.getAction();
73731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final float x = ev.getX();
73831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
73931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        switch (action) {
74031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case MotionEvent.ACTION_DOWN:
74131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            /*
74231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project             * If being flinged and user touches, stop the fling. isFinished
74331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project             * will be false if being flinged.
74431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project             */
74531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (!mScroller.isFinished()) {
74631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mScroller.abortAnimation();
74731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
74831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
74931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            // Remember where the motion event started
75031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mLastMotionX = x;
75131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
75231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case MotionEvent.ACTION_MOVE:
75331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mTouchState == TOUCH_STATE_SCROLLING) {
75431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // Scroll to follow the motion event
75531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int deltaX = (int) (mLastMotionX - x);
75631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mLastMotionX = x;
75731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
75831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (deltaX < 0) {
75931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (mScrollX > 0) {
76031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        scrollBy(Math.max(-mScrollX, deltaX), 0);
7618f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn                        updateWallpaperOffset();
76231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
76331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else if (deltaX > 0) {
76431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    final int availableToScroll = getChildAt(getChildCount() - 1).getRight() -
76531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                            mScrollX - getWidth();
76631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (availableToScroll > 0) {
76731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        scrollBy(Math.min(availableToScroll, deltaX), 0);
7688f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn                        updateWallpaperOffset();
76931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
7703a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron                } else {
7713a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron                    awakenScrollBars();
77231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
77331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
77431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
77531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case MotionEvent.ACTION_UP:
77631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mTouchState == TOUCH_STATE_SCROLLING) {
77731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final VelocityTracker velocityTracker = mVelocityTracker;
778a206daaed1318005d1534cca2e4eeec56144d104Romain Guy                velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
77931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                int velocityX = (int) velocityTracker.getXVelocity();
78031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
78131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (velocityX > SNAP_VELOCITY && mCurrentScreen > 0) {
78231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // Fling hard enough to move left
78331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    snapToScreen(mCurrentScreen - 1);
78431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else if (velocityX < -SNAP_VELOCITY && mCurrentScreen < getChildCount() - 1) {
78531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // Fling hard enough to move right
78631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    snapToScreen(mCurrentScreen + 1);
78731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else {
78831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    snapToDestination();
78931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
79031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
79131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (mVelocityTracker != null) {
79231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    mVelocityTracker.recycle();
79331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    mVelocityTracker = null;
79431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
79531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
79631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mTouchState = TOUCH_STATE_REST;
79731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
79831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case MotionEvent.ACTION_CANCEL:
79931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mTouchState = TOUCH_STATE_REST;
80031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
80131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
80231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return true;
80331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
80431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
80531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private void snapToDestination() {
80631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int screenWidth = getWidth();
80731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int whichScreen = (mScrollX + (screenWidth / 2)) / screenWidth;
80831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
80931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        snapToScreen(whichScreen);
81031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
81131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
81231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void snapToScreen(int whichScreen) {
813e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy        //if (!mScroller.isFinished()) return;
81482d94d9e9ee4eb6b14db3c8df2f47dcae5ce4ab0Romain Guy
8153a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        whichScreen = Math.max(0, Math.min(whichScreen, getChildCount() - 1));
8163a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
8174c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
8183a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        enableChildrenCache(mCurrentScreen, whichScreen);
81931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
8203a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        final int screenDelta = Math.abs(whichScreen - mCurrentScreen);
82131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
82231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mNextScreen = whichScreen;
823e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy
824e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy        mPreviousIndicator.setLevel(mNextScreen);
825e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy        mNextIndicator.setLevel(mNextScreen);
82631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
82731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View focusedChild = getFocusedChild();
8283a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        if (focusedChild != null && screenDelta != 0 && focusedChild == getChildAt(mCurrentScreen)) {
82931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            focusedChild.clearFocus();
83031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
83131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
83231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int newX = whichScreen * getWidth();
83331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int delta = newX - mScrollX;
8343a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        final int duration = screenDelta * 300;
8353a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        awakenScrollBars(duration);
836f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy
837f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        if (!mScroller.isFinished()) mScroller.abortAnimation();
838c45b16862918a0c6c253bba12032165b030565afJoe Onorato        mScroller.startScroll(mScrollX, 0, delta, 0, duration);
83931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        invalidate();
84031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
84131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
84231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void startDrag(CellLayout.CellInfo cellInfo) {
84331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View child = cellInfo.cell;
84431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
84531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // Make sure the drag was started by a long press as opposed to a long click.
8467984c9496bcaeca23ee7fdecc4d4f1bb2467e0f2Bjorn Bringert        if (!child.isInTouchMode()) {
84731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return;
84831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
84931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
85031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = cellInfo;
85131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo.screen = mCurrentScreen;
85231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
85331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout current = ((CellLayout) getChildAt(mCurrentScreen));
85431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
85531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        current.onDragChild(child);
85600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController.startDrag(child, this, child.getTag(), DragController.DRAG_ACTION_MOVE);
85731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        invalidate();
85831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
85931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
86031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
86131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected Parcelable onSaveInstanceState() {
86231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final SavedState state = new SavedState(super.onSaveInstanceState());
86331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        state.currentScreen = mCurrentScreen;
86431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return state;
86531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
86631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
86731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
86831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected void onRestoreInstanceState(Parcelable state) {
86931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        SavedState savedState = (SavedState) state;
87031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.onRestoreInstanceState(savedState.getSuperState());
87131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (savedState.currentScreen != -1) {
87231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mCurrentScreen = savedState.currentScreen;
87331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            Launcher.setScreen(mCurrentScreen);
87431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
87531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
87631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
87731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addApplicationShortcut(ApplicationInfo info, CellLayout.CellInfo cellInfo) {
87831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addApplicationShortcut(info, cellInfo, false);
87931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
88031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
88131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addApplicationShortcut(ApplicationInfo info, CellLayout.CellInfo cellInfo,
88231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            boolean insertAtFirst) {
88331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout layout = (CellLayout) getChildAt(cellInfo.screen);
88431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int[] result = new int[2];
88531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
88631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        layout.cellToPoint(cellInfo.cellX, cellInfo.cellY, result);
88731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        onDropExternal(result[0], result[1], info, layout, insertAtFirst);
88831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
88931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
89000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
89100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
89270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final CellLayout cellLayout = getCurrentDropLayout();
89331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (source != this) {
89431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            onDropExternal(x - xOffset, y - yOffset, dragInfo, cellLayout);
89531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
89631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            // Move internally
89731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mDragInfo != null) {
89831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final View cell = mDragInfo.cell;
89952d9cb32608e7c3d065b4fb8e97269e238f1683eRomain Guy                int index = mScroller.isFinished() ? mCurrentScreen : mNextScreen;
90052d9cb32608e7c3d065b4fb8e97269e238f1683eRomain Guy                if (index != mDragInfo.screen) {
90131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    final CellLayout originalCellLayout = (CellLayout) getChildAt(mDragInfo.screen);
90231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    originalCellLayout.removeView(cell);
90331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    cellLayout.addView(cell);
90431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
905263e019baafb3b6cbcfdef9c81d74a4bea769180Romain Guy                mTargetCell = estimateDropCell(x - xOffset, y - yOffset,
90670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey                        mDragInfo.spanX, mDragInfo.spanY, cell, cellLayout, mTargetCell);
90770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey                cellLayout.onDropChild(cell, mTargetCell);
90831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
90984f296c106cb1c7b6d3ae6c6d5508a17f1324e29Romain Guy                final ItemInfo info = (ItemInfo) cell.getTag();
91031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
91131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                LauncherModel.moveItemInDatabase(mLauncher, info,
91252d9cb32608e7c3d065b4fb8e97269e238f1683eRomain Guy                        LauncherSettings.Favorites.CONTAINER_DESKTOP, index, lp.cellX, lp.cellY);
91331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
91431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
91531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
91631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
91731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
91800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
9194c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
92031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
92131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
92231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
92300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
92431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
92531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
92631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset,
92700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
9284c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
92931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
93031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
93131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private void onDropExternal(int x, int y, Object dragInfo, CellLayout cellLayout) {
93231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        onDropExternal(x, y, dragInfo, cellLayout, false);
93331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
93431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
93531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private void onDropExternal(int x, int y, Object dragInfo, CellLayout cellLayout,
93631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            boolean insertAtFirst) {
93731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // Drag from somewhere else
93831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        ItemInfo info = (ItemInfo) dragInfo;
93931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
94031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View view;
94131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
94231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        switch (info.itemType) {
94331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
94431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
94531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (info.container == NO_ID) {
94631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // Came from all apps -- make a copy
94731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                info = new ApplicationInfo((ApplicationInfo) info);
94831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
94931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            view = mLauncher.createShortcut(R.layout.application, cellLayout,
95031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    (ApplicationInfo) info);
95131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
95231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
95331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher,
95431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    (ViewGroup) getChildAt(mCurrentScreen), ((UserFolderInfo) info));
95531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
95631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        default:
95731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalStateException("Unknown item type: " + info.itemType);
95831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
95931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
96031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        cellLayout.addView(view, insertAtFirst ? 0 : -1);
9610d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato        view.setHapticFeedbackEnabled(false);
96231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        view.setOnLongClickListener(mLongClickListener);
96300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        if (view instanceof DropTarget) {
964207e40ee66fddded52a028b8f68be3605da3df37Romain Guy            mDragController.addDropTarget((DropTarget) view);
96500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        }
96600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato
967263e019baafb3b6cbcfdef9c81d74a4bea769180Romain Guy        mTargetCell = estimateDropCell(x, y, 1, 1, view, cellLayout, mTargetCell);
96870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        cellLayout.onDropChild(view, mTargetCell);
96931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
97031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
97131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
97231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentScreen, lp.cellX, lp.cellY);
97331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
97470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
97570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
97670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Return the current {@link CellLayout}, correctly picking the destination
97770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * screen while a scroll is in progress.
97870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
97970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private CellLayout getCurrentDropLayout() {
98070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        int index = mScroller.isFinished() ? mCurrentScreen : mNextScreen;
98170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        return (CellLayout) getChildAt(index);
98270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
98331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
98470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
98570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * {@inheritDoc}
98670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
98770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    public boolean acceptDrop(DragSource source, int x, int y,
98800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            int xOffset, int yOffset, DragView dragView, Object dragInfo) {
9894c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        final CellLayout layout = getCurrentDropLayout();
9904c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        final CellLayout.CellInfo cellInfo = mDragInfo;
9914c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        final int spanX = cellInfo == null ? 1 : cellInfo.spanX;
9924c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        final int spanY = cellInfo == null ? 1 : cellInfo.spanY;
9934c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy
9944c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        if (mVacantCache == null) {
9954c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy            final View ignoreView = cellInfo == null ? null : cellInfo.cell;
9964c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy            mVacantCache = layout.findAllVacantCells(null, ignoreView);
9974c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        }
9984c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy
9994c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        return mVacantCache.findCellForSpan(mTempEstimate, spanX, spanY, false);
100070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
100170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
100270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
100370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * {@inheritDoc}
100470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
100570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    public Rect estimateDropLocation(DragSource source, int x, int y,
100600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            int xOffset, int yOffset, DragView dragView, Object dragInfo, Rect recycle) {
100770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final CellLayout layout = getCurrentDropLayout();
100870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
100931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout.CellInfo cellInfo = mDragInfo;
101070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final int spanX = cellInfo == null ? 1 : cellInfo.spanX;
101170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final int spanY = cellInfo == null ? 1 : cellInfo.spanY;
101270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final View ignoreView = cellInfo == null ? null : cellInfo.cell;
101370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
101470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final Rect location = recycle != null ? recycle : new Rect();
101570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
101670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        // Find drop cell and convert into rectangle
1017263e019baafb3b6cbcfdef9c81d74a4bea769180Romain Guy        int[] dropCell = estimateDropCell(x - xOffset, y - yOffset,
101870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey                spanX, spanY, ignoreView, layout, mTempCell);
101970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
102070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        if (dropCell == null) {
102170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            return null;
102270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        }
102370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
102470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        layout.cellToPoint(dropCell[0], dropCell[1], mTempEstimate);
102570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        location.left = mTempEstimate[0];
102670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        location.top = mTempEstimate[1];
102770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
102870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        layout.cellToPoint(dropCell[0] + spanX, dropCell[1] + spanY, mTempEstimate);
102970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        location.right = mTempEstimate[0];
103070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        location.bottom = mTempEstimate[1];
103170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
103270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        return location;
103331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
103431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
103570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
103670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Calculate the nearest cell where the given object would be dropped.
103770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
1038263e019baafb3b6cbcfdef9c81d74a4bea769180Romain Guy    private int[] estimateDropCell(int pixelX, int pixelY,
103970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) {
104070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        // Create vacant cell cache if none exists
104170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        if (mVacantCache == null) {
104270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            mVacantCache = layout.findAllVacantCells(null, ignoreView);
104370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        }
104470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
104570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        // Find the best target drop location
104670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        return layout.findNearestVacantArea(pixelX, pixelY,
104770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey                spanX, spanY, mVacantCache, recycle);
104870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
104970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
105031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void setLauncher(Launcher launcher) {
105131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mLauncher = launcher;
105231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
105331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
105400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    public void setDragController(DragController dragController) {
105500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController = dragController;
105631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
105731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
105831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void onDropCompleted(View target, boolean success) {
1059207e40ee66fddded52a028b8f68be3605da3df37Romain Guy        clearVacantCache();
1060207e40ee66fddded52a028b8f68be3605da3df37Romain Guy
106131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (success){
106231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (target != this && mDragInfo != null) {
106331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
106431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                cellLayout.removeView(mDragInfo.cell);
106500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                if (mDragInfo.cell instanceof DropTarget) {
106600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                    mDragController.removeDropTarget((DropTarget)mDragInfo.cell);
106700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                }
1068207e40ee66fddded52a028b8f68be3605da3df37Romain Guy                //final Object tag = mDragInfo.cell.getTag();
106931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
107031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
107131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mDragInfo != null) {
107231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
107331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                cellLayout.onDropAborted(mDragInfo.cell);
107431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
107531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
107631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
107731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = null;
107831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
107931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
108031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollLeft() {
10814c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
1082f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        if (mScroller.isFinished()) {
1083f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy            if (mCurrentScreen > 0) snapToScreen(mCurrentScreen - 1);
1084f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        } else {
1085f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy            if (mNextScreen > 0) snapToScreen(mNextScreen - 1);
108631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
108731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
108831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
108931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollRight() {
10904c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
1091f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        if (mScroller.isFinished()) {
1092f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy            if (mCurrentScreen < getChildCount() -1) snapToScreen(mCurrentScreen + 1);
1093f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        } else {
1094f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy            if (mNextScreen < getChildCount() -1) snapToScreen(mNextScreen + 1);
109531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
109631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
109731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
109831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public int getScreenForView(View v) {
109931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int result = -1;
110031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (v != null) {
110131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            ViewParent vp = v.getParent();
110231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = getChildCount();
110331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
110431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (vp == getChildAt(i)) {
110531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    return i;
110631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
110731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
110831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
110931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return result;
111031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
1111138a04170d964da9cdec228e95b976875ae52481Karl Rosaen
111231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Folder getFolderForTag(Object tag) {
111331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screenCount = getChildCount();
111431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
111531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            CellLayout currentScreen = ((CellLayout) getChildAt(screen));
111631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
111731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
111831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
111931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
112031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
112131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    Folder f = (Folder) child;
112231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (f.getInfo() == tag) {
112331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        return f;
112431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
112531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
112631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
112731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
112831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
112931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
113031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
113131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public View getViewForTag(Object tag) {
113231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screenCount = getChildCount();
113331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
113431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            CellLayout currentScreen = ((CellLayout) getChildAt(screen));
113531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
113631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
113731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
113831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (child.getTag() == tag) {
113931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    return child;
114031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
114131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
114231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
114331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
114431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
114531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
114631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
114731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return True is long presses are still allowed for the current touch
114831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
114931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean allowLongPress() {
115031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return mAllowLongPress;
115131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
1152ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project
1153ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project    /**
1154ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project     * Set true to allow long-press events to be triggered, usually checked by
1155ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project     * {@link Launcher} to accept or block dpad-initiated long-presses.
1156ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project     */
1157ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project    public void setAllowLongPress(boolean allowLongPress) {
1158ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project        mAllowLongPress = allowLongPress;
1159ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project    }
116031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
11615c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy    void removeItemsForPackage(String packageName) {
116231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final ArrayList<View> childrenToRemove = new ArrayList<View>();
116331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
11645c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy        final PackageManager manager = getContext().getPackageManager();
1165574d20ec84551370987dde530c27ec493bdef564Romain Guy
116631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
116731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
116831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int childCount = layout.getChildCount();
1169574d20ec84551370987dde530c27ec493bdef564Romain Guy
117031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            childrenToRemove.clear();
1171574d20ec84551370987dde530c27ec493bdef564Romain Guy
117231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int j = 0; j < childCount; j++) {
117331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final View view = layout.getChildAt(j);
117431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                Object tag = view.getTag();
1175574d20ec84551370987dde530c27ec493bdef564Romain Guy
117631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (tag instanceof ApplicationInfo) {
1177574d20ec84551370987dde530c27ec493bdef564Romain Guy                    final ApplicationInfo info = (ApplicationInfo) tag;
117831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // We need to check for ACTION_MAIN otherwise getComponent() might
117931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // return null for some shortcuts (for instance, for shortcuts to
118031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // web pages.)
118131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    final Intent intent = info.intent;
118231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    final ComponentName name = intent.getComponent();
1183574d20ec84551370987dde530c27ec493bdef564Romain Guy
118431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (Intent.ACTION_MAIN.equals(intent.getAction()) &&
118531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                            name != null && packageName.equals(name.getPackageName())) {
118631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
118731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        childrenToRemove.add(view);
118831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
1189574d20ec84551370987dde530c27ec493bdef564Romain Guy                } else if (tag instanceof UserFolderInfo) {
1190574d20ec84551370987dde530c27ec493bdef564Romain Guy                    final UserFolderInfo info = (UserFolderInfo) tag;
1191574d20ec84551370987dde530c27ec493bdef564Romain Guy                    final ArrayList<ApplicationInfo> contents = info.contents;
1192574d20ec84551370987dde530c27ec493bdef564Romain Guy                    final ArrayList<ApplicationInfo> toRemove = new ArrayList<ApplicationInfo>(1);
1193574d20ec84551370987dde530c27ec493bdef564Romain Guy                    final int contentsCount = contents.size();
1194574d20ec84551370987dde530c27ec493bdef564Romain Guy                    boolean removedFromFolder = false;
1195574d20ec84551370987dde530c27ec493bdef564Romain Guy
1196574d20ec84551370987dde530c27ec493bdef564Romain Guy                    for (int k = 0; k < contentsCount; k++) {
1197574d20ec84551370987dde530c27ec493bdef564Romain Guy                        final ApplicationInfo appInfo = contents.get(k);
1198574d20ec84551370987dde530c27ec493bdef564Romain Guy                        final Intent intent = appInfo.intent;
1199574d20ec84551370987dde530c27ec493bdef564Romain Guy                        final ComponentName name = intent.getComponent();
1200574d20ec84551370987dde530c27ec493bdef564Romain Guy
1201574d20ec84551370987dde530c27ec493bdef564Romain Guy                        if (Intent.ACTION_MAIN.equals(intent.getAction()) &&
1202574d20ec84551370987dde530c27ec493bdef564Romain Guy                                name != null && packageName.equals(name.getPackageName())) {
1203574d20ec84551370987dde530c27ec493bdef564Romain Guy                            toRemove.add(appInfo);
1204574d20ec84551370987dde530c27ec493bdef564Romain Guy                            LauncherModel.deleteItemFromDatabase(mLauncher, appInfo);
1205574d20ec84551370987dde530c27ec493bdef564Romain Guy                            removedFromFolder = true;
1206574d20ec84551370987dde530c27ec493bdef564Romain Guy                        }
1207574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
1208574d20ec84551370987dde530c27ec493bdef564Romain Guy
1209574d20ec84551370987dde530c27ec493bdef564Romain Guy                    contents.removeAll(toRemove);
1210574d20ec84551370987dde530c27ec493bdef564Romain Guy                    if (removedFromFolder) {
1211574d20ec84551370987dde530c27ec493bdef564Romain Guy                        final Folder folder = getOpenFolder();
1212574d20ec84551370987dde530c27ec493bdef564Romain Guy                        if (folder != null) folder.notifyDataSetChanged();
1213574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
12145c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                } else if (tag instanceof LiveFolderInfo) {
12155c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    final LiveFolderInfo info = (LiveFolderInfo) tag;
12165c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    final Uri uri = info.uri;
12175c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    final ProviderInfo providerInfo = manager.resolveContentProvider(
12185c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                            uri.getAuthority(), 0);
12195c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    if (providerInfo == null || packageName.equals(providerInfo.packageName)) {
12205c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
12215c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                        childrenToRemove.add(view);
12225c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    }
122331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
122431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
1225574d20ec84551370987dde530c27ec493bdef564Romain Guy
122631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            childCount = childrenToRemove.size();
122731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int j = 0; j < childCount; j++) {
122800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                View child = childrenToRemove.get(j);
122900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                layout.removeViewInLayout(child);
123000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                if (child instanceof DropTarget) {
123100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                    mDragController.removeDropTarget((DropTarget)child);
123200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                }
123331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
1234574d20ec84551370987dde530c27ec493bdef564Romain Guy
123531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (childCount > 0) {
123631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                layout.requestLayout();
123731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                layout.invalidate();
123831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
123931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
124031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
1241f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
1242f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project    void updateShortcutsForPackage(String packageName) {
12439c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato        final PackageManager pm = mLauncher.getPackageManager();
12449c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato
1245f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        final int count = getChildCount();
1246f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        for (int i = 0; i < count; i++) {
1247f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
1248f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            int childCount = layout.getChildCount();
1249f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            for (int j = 0; j < childCount; j++) {
1250f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                final View view = layout.getChildAt(j);
1251f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                Object tag = view.getTag();
1252f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                if (tag instanceof ApplicationInfo) {
1253f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    ApplicationInfo info = (ApplicationInfo) tag;
1254f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // We need to check for ACTION_MAIN otherwise getComponent() might
1255f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // return null for some shortcuts (for instance, for shortcuts to
1256f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // web pages.)
1257f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final Intent intent = info.intent;
1258f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final ComponentName name = intent.getComponent();
1259f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
1260f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            Intent.ACTION_MAIN.equals(intent.getAction()) && name != null &&
1261f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            packageName.equals(name.getPackageName())) {
1262f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
12639c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato                        final Drawable icon = AppInfoCache.getIconDrawable(pm, info);
1264f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                        if (icon != null && icon != info.icon) {
1265f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            info.icon.setCallback(null);
12666665c0f1fec6ec0962896622986340081df992e7Joe Onorato                            info.icon = Utilities.createIconThumbnail(icon, mContext);
1267f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            info.filtered = true;
1268f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            ((TextView) view).setCompoundDrawablesWithIntrinsicBounds(null,
1269f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                                    info.icon, null, null);
1270f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                        }
1271f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    }
1272f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                }
1273f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            }
1274f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        }
1275f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project    }
1276f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
127714f122bf847e50a3e7730ccbe57abc25d086a01bJoe Onorato    void moveToDefaultScreen(boolean animate) {
1278c45b16862918a0c6c253bba12032165b030565afJoe Onorato        if (animate) {
1279c45b16862918a0c6c253bba12032165b030565afJoe Onorato            snapToScreen(mDefaultScreen);
1280c45b16862918a0c6c253bba12032165b030565afJoe Onorato        } else {
1281c45b16862918a0c6c253bba12032165b030565afJoe Onorato            setCurrentScreen(mDefaultScreen);
1282c45b16862918a0c6c253bba12032165b030565afJoe Onorato        }
128331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        getChildAt(mDefaultScreen).requestFocus();
128431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
128531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
12868a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    void setIndicators(Drawable previous, Drawable next) {
12878a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        mPreviousIndicator = previous;
12888a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        mNextIndicator = next;
12898a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        previous.setLevel(mCurrentScreen);
12908a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        next.setLevel(mCurrentScreen);
12918a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    }
12928a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy
129331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public static class SavedState extends BaseSavedState {
129431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int currentScreen = -1;
129531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
129631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        SavedState(Parcelable superState) {
129731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            super(superState);
129831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
129931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
130031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        private SavedState(Parcel in) {
130131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            super(in);
130231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            currentScreen = in.readInt();
130331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
130431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
130531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        @Override
130631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        public void writeToParcel(Parcel out, int flags) {
130731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            super.writeToParcel(out, flags);
130831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            out.writeInt(currentScreen);
130931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
131031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
131131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        public static final Parcelable.Creator<SavedState> CREATOR =
131231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                new Parcelable.Creator<SavedState>() {
131331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            public SavedState createFromParcel(Parcel in) {
131431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return new SavedState(in);
131531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
131631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
131731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            public SavedState[] newArray(int size) {
131831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return new SavedState[size];
131931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
132031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        };
132131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
132231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project}
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