Workspace.java revision 629de3ef739883c0962423cc0c3a26299f162d3d
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;
20629de3ef739883c0962423cc0c3a26299f162d3dRomain Guyimport android.appwidget.AppWidgetManager;
21629de3ef739883c0962423cc0c3a26299f162d3dRomain Guyimport android.appwidget.AppWidgetProviderInfo;
2231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.Context;
2331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.Intent;
2431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.ComponentName;
255c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guyimport android.content.pm.ProviderInfo;
2631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.res.TypedArray;
279c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onoratoimport android.content.pm.PackageManager;
2831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.graphics.Canvas;
2931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.graphics.Rect;
30f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Projectimport android.graphics.drawable.Drawable;
315c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guyimport android.net.Uri;
32080d9b614e609826dce2606f9e474af674ead933Joe Onoratoimport android.os.Parcelable;
33080d9b614e609826dce2606f9e474af674ead933Joe Onoratoimport android.os.Parcel;
3431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.util.AttributeSet;
3531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.MotionEvent;
3631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.VelocityTracker;
3731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.View;
3831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.ViewConfiguration;
3931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.ViewGroup;
4031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.ViewParent;
4131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.widget.Scroller;
42f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Projectimport android.widget.TextView;
4331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
4431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport java.util.ArrayList;
4531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
4631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project/**
4731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * The workspace is a wide area with a wallpaper and a finite number of screens. Each
4831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * screen contains a number of icons, folders or widgets the user can interact with.
4931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * A workspace is meant to be used with a fixed width only.
5031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */
5185a02a8d13eced310aee4c2a795e9c9c5435038fJoe Onoratopublic class Workspace extends ViewGroup implements DropTarget, DragSource, DragScroller {
52e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy    @SuppressWarnings({"UnusedDeclaration"})
533a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    private static final String TAG = "Launcher.Workspace";
5431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private static final int INVALID_SCREEN = -1;
5570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
5631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
5731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * The velocity at which a fling gesture will cause us to snap to the next screen
5831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
5931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private static final int SNAP_VELOCITY = 1000;
6031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
618f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    private final WallpaperManager mWallpaperManager;
628f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn
6331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mDefaultScreen;
6431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private boolean mFirstLayout = true;
6631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mCurrentScreen;
6831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mNextScreen = INVALID_SCREEN;
6931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private Scroller mScroller;
7031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private VelocityTracker mVelocityTracker;
7131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
7231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
7331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * CellInfo for the cell that is currently being dragged
7431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
7531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private CellLayout.CellInfo mDragInfo;
7670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
7770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
7870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Target drop area calculated during last acceptDrop call.
7970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
8070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTargetCell = null;
8131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
8231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private float mLastMotionX;
8331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private float mLastMotionY;
84f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
8531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private final static int TOUCH_STATE_REST = 0;
8631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private final static int TOUCH_STATE_SCROLLING = 1;
8731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
8831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mTouchState = TOUCH_STATE_REST;
8931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
9031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private OnLongClickListener mLongClickListener;
9131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
9231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private Launcher mLauncher;
9300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    private DragController mDragController;
9470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
9570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
9670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Cache of vacant cells, used during drag events and invalidated as needed.
9770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
9870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private CellLayout.CellInfo mVacantCache = null;
9970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
10031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int[] mTempCell = new int[2];
10170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTempEstimate = new int[2];
10231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
103a9c28f6f97a4b34d9527c786e3aa8f02d92d9e07Joe Onorato    private boolean mAllowLongPress = true;
10431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
10531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int mTouchSlop;
106a206daaed1318005d1534cca2e4eeec56144d104Romain Guy    private int mMaximumVelocity;
10731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1088a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    private Drawable mPreviousIndicator;
1098a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    private Drawable mNextIndicator;
1108a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy
11131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
11231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
11331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
11431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
11531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param attrs The attribtues set containing the Workspace's customization values.
11631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
11731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs) {
11831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        this(context, attrs, 0);
11931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
12031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
12131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
12231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
12331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
12431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
12531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param attrs The attribtues set containing the Workspace's customization values.
12631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param defStyle Unused.
12731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
12831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs, int defStyle) {
12931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super(context, attrs, defStyle);
13031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1318f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn        mWallpaperManager = WallpaperManager.getInstance(context);
1328f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn
13331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.Workspace, defStyle, 0);
13431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDefaultScreen = a.getInt(R.styleable.Workspace_defaultScreen, 1);
13531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        a.recycle();
13631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1370d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato        setHapticFeedbackEnabled(false);
13831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        initWorkspace();
13931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
14031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
14131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
14231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Initializes various states for this workspace.
14331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
14431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private void initWorkspace() {
14531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mScroller = new Scroller(getContext());
14631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mCurrentScreen = mDefaultScreen;
14731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        Launcher.setScreen(mCurrentScreen);
14831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
149a206daaed1318005d1534cca2e4eeec56144d104Romain Guy        final ViewConfiguration configuration = ViewConfiguration.get(getContext());
150a206daaed1318005d1534cca2e4eeec56144d104Romain Guy        mTouchSlop = configuration.getScaledTouchSlop();
151a206daaed1318005d1534cca2e4eeec56144d104Romain Guy        mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
15231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
15331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
15431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
15531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index, LayoutParams params) {
15631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
15731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
15831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
15931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index, params);
16031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
16131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
16231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
16331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child) {
16431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
16531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
16631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
16731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child);
16831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
16931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
17031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
17131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index) {
17231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
17331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
17431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
17531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index);
17631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
17731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
17831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
17931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int width, int height) {
18031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
18131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
18231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
18331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, width, height);
18431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
18531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
18631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
18731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, LayoutParams params) {
18831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
18931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
19031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
19131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, params);
19231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
19331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
19431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
19531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return The open folder on the current screen, or null if there is none
19631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
19731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    Folder getOpenFolder() {
19831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout currentScreen = (CellLayout) getChildAt(mCurrentScreen);
19931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int count = currentScreen.getChildCount();
20031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
20131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            View child = currentScreen.getChildAt(i);
20231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
20331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
20431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return (Folder) child;
20531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
20631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
20731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
20831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
20931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
21031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    ArrayList<Folder> getOpenFolders() {
21131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int screens = getChildCount();
21231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        ArrayList<Folder> folders = new ArrayList<Folder>(screens);
21331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
21431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screens; screen++) {
21531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            CellLayout currentScreen = (CellLayout) getChildAt(screen);
21631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
21731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
21831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
21931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
22031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
22131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    folders.add((Folder) child);
22231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    break;
22331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
22431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
22531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
22631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
22731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return folders;
22831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
22931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
23031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    boolean isDefaultScreenShowing() {
23131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return mCurrentScreen == mDefaultScreen;
23231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
23331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
23431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
23531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Returns the index of the currently displayed screen.
23631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
23731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return The index of the currently displayed screen.
23831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
23931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    int getCurrentScreen() {
24031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return mCurrentScreen;
24131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
24231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
24331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
24431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Sets the current screen.
24531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
24631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param currentScreen
24731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
24831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void setCurrentScreen(int currentScreen) {
249c45b16862918a0c6c253bba12032165b030565afJoe Onorato        if (!mScroller.isFinished()) mScroller.abortAnimation();
2504c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
25131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mCurrentScreen = Math.max(0, Math.min(currentScreen, getChildCount() - 1));
25231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        scrollTo(mCurrentScreen * getWidth(), 0);
25331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        invalidate();
25431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
25531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
25631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
25731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the current screen. The position and dimension of
25831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
25931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
26031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
26131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
26231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
26331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
26431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
26531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
26631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInCurrentScreen(View child, int x, int y, int spanX, int spanY) {
26731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, mCurrentScreen, x, y, spanX, spanY, false);
26831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
26931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
27031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
27131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the current screen. The position and dimension of
27231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
27331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
27431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
27531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
27631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
27731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
27831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
27931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param insert When true, the child is inserted at the beginning of the children list.
28031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
28131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInCurrentScreen(View child, int x, int y, int spanX, int spanY, boolean insert) {
28231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, mCurrentScreen, x, y, spanX, spanY, insert);
28331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
28431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
28531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
28631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
28731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
28831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
28931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
29031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
29131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
29231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
29331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
29431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
29531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
29631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY) {
29731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, screen, x, y, spanX, spanY, false);
29831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
29931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
30031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
30131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
30231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
30331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
30431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
30531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
30631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
30731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
30831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
30931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
31031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param insert When true, the child is inserted at the beginning of the children list.
31131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
31231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY, boolean insert) {
31331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (screen < 0 || screen >= getChildCount()) {
31431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalStateException("The screen must be >= 0 and < " + getChildCount());
31531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
31631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3174c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
3184c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy
31931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout group = (CellLayout) getChildAt(screen);
32031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
32131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (lp == null) {
32231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
32331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
32431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellX = x;
32531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellY = y;
32631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellHSpan = spanX;
32731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellVSpan = spanY;
32831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
32931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        group.addView(child, insert ? 0 : -1, lp);
33031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof Folder)) {
3310d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato            child.setHapticFeedbackEnabled(false);
33231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            child.setOnLongClickListener(mLongClickListener);
33331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
33400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        if (child instanceof DropTarget) {
33500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            mDragController.addDropTarget((DropTarget)child);
33600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        }
33731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
33831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
33931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    CellLayout.CellInfo findAllVacantCells(boolean[] occupied) {
34031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout group = (CellLayout) getChildAt(mCurrentScreen);
34131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (group != null) {
34270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            return group.findAllVacantCells(occupied, null);
34331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
34431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
34531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
34631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3474c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy    private void clearVacantCache() {
3484c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        if (mVacantCache != null) {
3494c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy            mVacantCache.clearVacantCells();
3504c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy            mVacantCache = null;
3514c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        }
3524c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy    }
35331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
35431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
35531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Registers the specified listener on each screen contained in this workspace.
35631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
35731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param l The listener used to respond to long clicks.
35831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
35931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
36031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void setOnLongClickListener(OnLongClickListener l) {
36131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mLongClickListener = l;
36231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
36331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
36431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            getChildAt(i).setOnLongClickListener(l);
36531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
36631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
36731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3688f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    private void updateWallpaperOffset() {
369798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy        updateWallpaperOffset(getChildAt(getChildCount() - 1).getRight() - (mRight - mLeft));
370798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy    }
371798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy
372798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy    private void updateWallpaperOffset(int scrollRange) {
373c07c79b10b663a02ef67da57bdda60a1ea299eb5Marco Nelissen        mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 0 );
37449cdb1b18c12a81cac9817c4800e43d5b507e0c4Dianne Hackborn        mWallpaperManager.setWallpaperOffsets(getWindowToken(), mScrollX / (float) scrollRange, 0);
3758f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    }
3768f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn
37731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
37831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void computeScroll() {
37931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (mScroller.computeScrollOffset()) {
38031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mScrollX = mScroller.getCurrX();
38131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mScrollY = mScroller.getCurrY();
3828f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn            updateWallpaperOffset();
38331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            postInvalidate();
38431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else if (mNextScreen != INVALID_SCREEN) {
38531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mCurrentScreen = Math.max(0, Math.min(mNextScreen, getChildCount() - 1));
3868a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy            mPreviousIndicator.setLevel(mCurrentScreen);
3878a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy            mNextIndicator.setLevel(mCurrentScreen);
38831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            Launcher.setScreen(mCurrentScreen);
38931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mNextScreen = INVALID_SCREEN;
39031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            clearChildrenCache();
39131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
39231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
39331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
39431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
39531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected void dispatchDraw(Canvas canvas) {
3967376faefbbcbe30cc4e3f706ab95c254a4707d98The Android Open Source Project        boolean restore = false;
397e77c08d15f23c403293dbb40c6a36967de822c89Joe Onorato        int restoreCount = 0;
398e77c08d15f23c403293dbb40c6a36967de822c89Joe Onorato
39931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // ViewGroup.dispatchDraw() supports many features we don't need:
40031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // clip to padding, layout animation, animation listener, disappearing
40131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // children, etc. The following implementation attempts to fast-track
40231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // the drawing dispatch by drawing only what we know needs to be drawn.
40331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
404f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        boolean fastDraw = mTouchState != TOUCH_STATE_SCROLLING && mNextScreen == INVALID_SCREEN;
40531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // If we are not scrolling or flinging, draw only the current screen
40631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (fastDraw) {
40731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            drawChild(canvas, getChildAt(mCurrentScreen), getDrawingTime());
40831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
40931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final long drawingTime = getDrawingTime();
41031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            // If we are flinging, draw only the current screen and the target screen
41131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mNextScreen >= 0 && mNextScreen < getChildCount() &&
41231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    Math.abs(mCurrentScreen - mNextScreen) == 1) {
41331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                drawChild(canvas, getChildAt(mCurrentScreen), drawingTime);
41431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                drawChild(canvas, getChildAt(mNextScreen), drawingTime);
41531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
41631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // If we are scrolling, draw all of our children
41731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int count = getChildCount();
41831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                for (int i = 0; i < count; i++) {
41931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    drawChild(canvas, getChildAt(i), drawingTime);
42031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
42131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
42231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
4237376faefbbcbe30cc4e3f706ab95c254a4707d98The Android Open Source Project
4247376faefbbcbe30cc4e3f706ab95c254a4707d98The Android Open Source Project        if (restore) {
425e77c08d15f23c403293dbb40c6a36967de822c89Joe Onorato            canvas.restoreToCount(restoreCount);
4267376faefbbcbe30cc4e3f706ab95c254a4707d98The Android Open Source Project        }
42731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
42831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
42900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    protected void onAttachedToWindow() {
43000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        super.onAttachedToWindow();
43100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController.setWindowToken(getWindowToken());
43200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    }
43300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato
43431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
43531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
43631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
43731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
43831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int width = MeasureSpec.getSize(widthMeasureSpec);
43931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
44031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (widthMode != MeasureSpec.EXACTLY) {
44131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalStateException("Workspace can only be used in EXACTLY mode.");
44231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
44331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
44431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
44531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (heightMode != MeasureSpec.EXACTLY) {
44631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalStateException("Workspace can only be used in EXACTLY mode.");
44731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
44831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
44931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // The children are given the same width and height as the workspace
45031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
45131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
45231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            getChildAt(i).measure(widthMeasureSpec, heightMeasureSpec);
45331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
45431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
4553a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
45631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (mFirstLayout) {
4573a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron            setHorizontalScrollBarEnabled(false);
45831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            scrollTo(mCurrentScreen * width, 0);
4593a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron            setHorizontalScrollBarEnabled(true);
460798300c4c05b12228f2e4f31c49c3cb728a37889Romain Guy            updateWallpaperOffset(width * (getChildCount() - 1));
46131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mFirstLayout = false;
46231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
46331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
46431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
46531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
46631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
46731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int childLeft = 0;
46831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
46931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
47031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
47131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final View child = getChildAt(i);
47231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (child.getVisibility() != View.GONE) {
47331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int childWidth = child.getMeasuredWidth();
47431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                child.layout(childLeft, 0, childLeft + childWidth, child.getMeasuredHeight());
47531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                childLeft += childWidth;
47631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
47731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
47831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
47931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
48031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
48131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate) {
48231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screen = indexOfChild(child);
48331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (screen != mCurrentScreen || !mScroller.isFinished()) {
48431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (!mLauncher.isWorkspaceLocked()) {
48531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                snapToScreen(screen);
48631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
48731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return true;
48831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
48931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return false;
49031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
49131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
49231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
49331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
494678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
49531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
49631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (openFolder != null) {
49731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return openFolder.requestFocus(direction, previouslyFocusedRect);
49831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
49931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                int focusableScreen;
50031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (mNextScreen != INVALID_SCREEN) {
50131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    focusableScreen = mNextScreen;
50231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else {
50331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    focusableScreen = mCurrentScreen;
50431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
50531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                getChildAt(focusableScreen).requestFocus(direction, previouslyFocusedRect);
50631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
50731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
50831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return false;
50931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
51031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
51131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
51231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean dispatchUnhandledMove(View focused, int direction) {
51331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (direction == View.FOCUS_LEFT) {
51431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (getCurrentScreen() > 0) {
51531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                snapToScreen(getCurrentScreen() - 1);
51631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return true;
51731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
51831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else if (direction == View.FOCUS_RIGHT) {
51931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (getCurrentScreen() < getChildCount() - 1) {
52031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                snapToScreen(getCurrentScreen() + 1);
52131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return true;
52231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
52331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
52431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return super.dispatchUnhandledMove(focused, direction);
52531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
52631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
52731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
528c2e24c0a37ddeab930f731c062705d435e477f75Romain Guy    public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
529678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
53031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
53131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (openFolder == null) {
53231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                getChildAt(mCurrentScreen).addFocusables(views, direction);
53331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (direction == View.FOCUS_LEFT) {
53431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (mCurrentScreen > 0) {
53531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        getChildAt(mCurrentScreen - 1).addFocusables(views, direction);
53631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
53731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else if (direction == View.FOCUS_RIGHT){
53831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (mCurrentScreen < getChildCount() - 1) {
53931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        getChildAt(mCurrentScreen + 1).addFocusables(views, direction);
54031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
54131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
54231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
54331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                openFolder.addFocusables(views, direction);
54431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
54531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
54631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
54731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
54831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
5497bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    public boolean dispatchTouchEvent(MotionEvent ev) {
5507bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
5517bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato            if (mLauncher.isWorkspaceLocked() || mLauncher.isAllAppsVisible()) {
5527bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato                return false;
5537bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato            }
5547bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        }
5557bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        return super.dispatchTouchEvent(ev);
5567bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    }
5577bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato
5587bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    @Override
55931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean onInterceptTouchEvent(MotionEvent ev) {
56068ba5ca5d7f17df65f0cc8813603de2d3f215bf4Joe Onorato        final boolean workspaceLocked = mLauncher.isWorkspaceLocked();
56168ba5ca5d7f17df65f0cc8813603de2d3f215bf4Joe Onorato        final boolean allAppsVisible = mLauncher.isAllAppsVisible();
56268ba5ca5d7f17df65f0cc8813603de2d3f215bf4Joe Onorato        if (workspaceLocked || allAppsVisible) {
5637c312c15e33b6cffbda707429e88ade498fc9f5eJoe Onorato            return false; // We don't want the events.  Let them fall through to the all apps view.
56431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
56531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
56631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        /*
56731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * This method JUST determines whether we want to intercept the motion.
56831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * If we return true, onTouchEvent will be called and we do the actual
56931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * scrolling there.
57031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         */
57131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
57231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        /*
57331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * Shortcut the most recurring case: the user is in the dragging
57431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * state and he is moving his finger.  We want to intercept this
57531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * motion.
57631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         */
57731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int action = ev.getAction();
57831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if ((action == MotionEvent.ACTION_MOVE) && (mTouchState != TOUCH_STATE_REST)) {
57931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return true;
58031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
58131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
58231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final float x = ev.getX();
58331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final float y = ev.getY();
58431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
58531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        switch (action) {
58631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            case MotionEvent.ACTION_MOVE:
58731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                /*
58831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
58931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * whether the user has moved far enough from his original down touch.
59031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 */
59131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
59231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                /*
59331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * Locally do absolute value. mLastMotionX is set to the y value
59431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * of the down event.
59531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 */
59631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int xDiff = (int) Math.abs(x - mLastMotionX);
59731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int yDiff = (int) Math.abs(y - mLastMotionY);
59831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
59931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int touchSlop = mTouchSlop;
60031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                boolean xMoved = xDiff > touchSlop;
60131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                boolean yMoved = yDiff > touchSlop;
60231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
60331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (xMoved || yMoved) {
60431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
60531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (xMoved) {
60631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        // Scroll if the user moved far enough along the X axis
60731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        mTouchState = TOUCH_STATE_SCROLLING;
6083a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron                        enableChildrenCache(mCurrentScreen - 1, mCurrentScreen + 1);
60931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
61031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // Either way, cancel any pending longpress
61131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (mAllowLongPress) {
61231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        mAllowLongPress = false;
61331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        // Try canceling the long press. It could also have been scheduled
61431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        // by a distant descendant, so use the mAllowLongPress flag to block
61531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        // everything
61631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        final View currentScreen = getChildAt(mCurrentScreen);
61731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        currentScreen.cancelLongPress();
61831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
61931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
62031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                break;
62131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
62231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            case MotionEvent.ACTION_DOWN:
62331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // Remember location of down touch
62431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mLastMotionX = x;
62531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mLastMotionY = y;
62631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mAllowLongPress = true;
62731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
62831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                /*
62931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * If being flinged and user touches the screen, initiate drag;
63031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * otherwise don't.  mScroller.isFinished should be false when
63131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 * being flinged.
63231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                 */
63331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mTouchState = mScroller.isFinished() ? TOUCH_STATE_REST : TOUCH_STATE_SCROLLING;
63431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                break;
63531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
63631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            case MotionEvent.ACTION_CANCEL:
63731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            case MotionEvent.ACTION_UP:
638f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
639f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                if (mTouchState != TOUCH_STATE_SCROLLING) {
640f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
641f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                    final CellLayout currentScreen = (CellLayout)getChildAt(mCurrentScreen);
642f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                    if (!currentScreen.lastDownOnOccupiedCell()) {
643f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                        // Send a tap to the wallpaper if the last down was on empty space
644f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                        mWallpaperManager.sendWallpaperCommand(getWindowToken(),
645f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                                "android.wallpaper.tap", (int) ev.getX(), (int) ev.getY(), 0, null);
646f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                    }
647f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron                }
648f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
64931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // Release the drag
65031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                clearChildrenCache();
65131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mTouchState = TOUCH_STATE_REST;
65231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mAllowLongPress = false;
653f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
65431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                break;
65531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
65631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
65731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        /*
65831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * The only time we want to intercept motion events is if we are in the
65931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         * drag mode.
66031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project         */
66131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return mTouchState != TOUCH_STATE_REST;
66231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
66331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6643a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    /**
6653a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     * If one of our descendant views decides that it could be focused now, only
6663a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     * pass that along if it's on the current screen.
6673a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     *
6683a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     * This happens when live folders requery, and if they're off screen, they
6693a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     * end up calling requestFocus, which pulls it on screen.
6703a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato     */
6713a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    @Override
6723a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    public void focusableViewAvailable(View focused) {
6733a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato        View current = getChildAt(mCurrentScreen);
6743a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato        View v = focused;
6753a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato        while (true) {
6763a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            if (v == current) {
6773a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                super.focusableViewAvailable(focused);
6783a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                return;
6793a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            }
6803a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            if (v == this) {
6813a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                return;
6823a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            }
6833a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            ViewParent parent = v.getParent();
6843a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            if (parent instanceof View) {
6853a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                v = (View)v.getParent();
6863a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            } else {
6873a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato                return;
6883a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato            }
6893a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato        }
6903a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    }
6913a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato
6923a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron    void enableChildrenCache(int fromScreen, int toScreen) {
6933a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        if (fromScreen > toScreen) {
6943a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron            fromScreen = toScreen;
6953a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron            toScreen = fromScreen;
6963a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        }
6973a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
69831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
6993a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
7003a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        fromScreen = Math.max(fromScreen, 0);
7013a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        toScreen = Math.min(toScreen, count - 1);
7023a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
7033a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        for (int i = fromScreen; i <= toScreen; i++) {
70431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
70531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(true);
70631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawingCacheEnabled(true);
70731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
70831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
70931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
71031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void clearChildrenCache() {
71131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
71231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
71331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
71431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(false);
71531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
71631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
71731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
71831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
71931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean onTouchEvent(MotionEvent ev) {
720f8bbd34d7d4705b49db202be92b920196bc7ea38Mike Cleron
7212bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato        if (mLauncher.isWorkspaceLocked()) {
7222bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            return false; // We don't want the events.  Let them fall through to the all apps view.
7232bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato        }
7242bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato        if (mLauncher.isAllAppsVisible()) {
7252bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            // Cancel any scrolling that is in progress.
7262bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            if (!mScroller.isFinished()) {
7272bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato                mScroller.abortAnimation();
7282bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            }
7292bc6b7c2b8b651dde0a65c64c127f5b85c1290d2Joe Onorato            snapToScreen(mCurrentScreen);
7307c312c15e33b6cffbda707429e88ade498fc9f5eJoe Onorato            return false; // We don't want the events.  Let them fall through to the all apps view.
73131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
73231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
73331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (mVelocityTracker == null) {
73431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mVelocityTracker = VelocityTracker.obtain();
73531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
73631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mVelocityTracker.addMovement(ev);
73731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
73831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int action = ev.getAction();
73931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final float x = ev.getX();
74031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
74131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        switch (action) {
74231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case MotionEvent.ACTION_DOWN:
74331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            /*
74431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project             * If being flinged and user touches, stop the fling. isFinished
74531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project             * will be false if being flinged.
74631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project             */
74731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (!mScroller.isFinished()) {
74831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mScroller.abortAnimation();
74931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
75031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
75131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            // Remember where the motion event started
75231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mLastMotionX = x;
75331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
75431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case MotionEvent.ACTION_MOVE:
75531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mTouchState == TOUCH_STATE_SCROLLING) {
75631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // Scroll to follow the motion event
75731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final int deltaX = (int) (mLastMotionX - x);
75831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                mLastMotionX = x;
75931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
76031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (deltaX < 0) {
76131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (mScrollX > 0) {
76231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        scrollBy(Math.max(-mScrollX, deltaX), 0);
7638f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn                        updateWallpaperOffset();
76431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
76531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else if (deltaX > 0) {
76631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    final int availableToScroll = getChildAt(getChildCount() - 1).getRight() -
76731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                            mScrollX - getWidth();
76831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (availableToScroll > 0) {
76931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        scrollBy(Math.min(availableToScroll, deltaX), 0);
7708f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn                        updateWallpaperOffset();
77131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
7723a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron                } else {
7733a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron                    awakenScrollBars();
77431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
77531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
77631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
77731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case MotionEvent.ACTION_UP:
77831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mTouchState == TOUCH_STATE_SCROLLING) {
77931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final VelocityTracker velocityTracker = mVelocityTracker;
780a206daaed1318005d1534cca2e4eeec56144d104Romain Guy                velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
78131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                int velocityX = (int) velocityTracker.getXVelocity();
78231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
78331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (velocityX > SNAP_VELOCITY && mCurrentScreen > 0) {
78431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // Fling hard enough to move left
78531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    snapToScreen(mCurrentScreen - 1);
78631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else if (velocityX < -SNAP_VELOCITY && mCurrentScreen < getChildCount() - 1) {
78731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    // Fling hard enough to move right
78831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    snapToScreen(mCurrentScreen + 1);
78931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                } else {
79031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    snapToDestination();
79131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
79231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
79331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (mVelocityTracker != null) {
79431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    mVelocityTracker.recycle();
79531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    mVelocityTracker = null;
79631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
79731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
79831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mTouchState = TOUCH_STATE_REST;
79931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
80031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case MotionEvent.ACTION_CANCEL:
80131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mTouchState = TOUCH_STATE_REST;
80231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
80331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
80431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return true;
80531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
80631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
80731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private void snapToDestination() {
80831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int screenWidth = getWidth();
80931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int whichScreen = (mScrollX + (screenWidth / 2)) / screenWidth;
81031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
81131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        snapToScreen(whichScreen);
81231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
81331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
81431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void snapToScreen(int whichScreen) {
815e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy        //if (!mScroller.isFinished()) return;
81682d94d9e9ee4eb6b14db3c8df2f47dcae5ce4ab0Romain Guy
8173a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        whichScreen = Math.max(0, Math.min(whichScreen, getChildCount() - 1));
8183a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron
8194c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
8203a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        enableChildrenCache(mCurrentScreen, whichScreen);
82131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
8223a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        final int screenDelta = Math.abs(whichScreen - mCurrentScreen);
82331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
82431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mNextScreen = whichScreen;
825e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy
826e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy        mPreviousIndicator.setLevel(mNextScreen);
827e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy        mNextIndicator.setLevel(mNextScreen);
82831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
82931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View focusedChild = getFocusedChild();
8303a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        if (focusedChild != null && screenDelta != 0 && focusedChild == getChildAt(mCurrentScreen)) {
83131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            focusedChild.clearFocus();
83231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
83331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
83431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int newX = whichScreen * getWidth();
83531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int delta = newX - mScrollX;
8363a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        final int duration = screenDelta * 300;
8373a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        awakenScrollBars(duration);
838f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy
839f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        if (!mScroller.isFinished()) mScroller.abortAnimation();
840c45b16862918a0c6c253bba12032165b030565afJoe Onorato        mScroller.startScroll(mScrollX, 0, delta, 0, duration);
84131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        invalidate();
84231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
84331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
84431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void startDrag(CellLayout.CellInfo cellInfo) {
84531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View child = cellInfo.cell;
84631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
84731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // Make sure the drag was started by a long press as opposed to a long click.
8487984c9496bcaeca23ee7fdecc4d4f1bb2467e0f2Bjorn Bringert        if (!child.isInTouchMode()) {
84931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return;
85031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
85131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
85231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = cellInfo;
85331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo.screen = mCurrentScreen;
85431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
85531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout current = ((CellLayout) getChildAt(mCurrentScreen));
85631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
85731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        current.onDragChild(child);
85800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController.startDrag(child, this, child.getTag(), DragController.DRAG_ACTION_MOVE);
85931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        invalidate();
86031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
86131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
86231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
86331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected Parcelable onSaveInstanceState() {
86431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final SavedState state = new SavedState(super.onSaveInstanceState());
86531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        state.currentScreen = mCurrentScreen;
86631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return state;
86731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
86831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
86931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
87031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected void onRestoreInstanceState(Parcelable state) {
87131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        SavedState savedState = (SavedState) state;
87231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.onRestoreInstanceState(savedState.getSuperState());
87331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (savedState.currentScreen != -1) {
87431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            mCurrentScreen = savedState.currentScreen;
87531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            Launcher.setScreen(mCurrentScreen);
87631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
87731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
87831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
87931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addApplicationShortcut(ApplicationInfo info, CellLayout.CellInfo cellInfo) {
88031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addApplicationShortcut(info, cellInfo, false);
88131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
88231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
88331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addApplicationShortcut(ApplicationInfo info, CellLayout.CellInfo cellInfo,
88431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            boolean insertAtFirst) {
88531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout layout = (CellLayout) getChildAt(cellInfo.screen);
88631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int[] result = new int[2];
88731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
88831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        layout.cellToPoint(cellInfo.cellX, cellInfo.cellY, result);
88931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        onDropExternal(result[0], result[1], info, layout, insertAtFirst);
89031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
89131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
89200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
89300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
89470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final CellLayout cellLayout = getCurrentDropLayout();
89531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (source != this) {
89631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            onDropExternal(x - xOffset, y - yOffset, dragInfo, cellLayout);
89731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
89831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            // Move internally
89931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mDragInfo != null) {
90031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final View cell = mDragInfo.cell;
90152d9cb32608e7c3d065b4fb8e97269e238f1683eRomain Guy                int index = mScroller.isFinished() ? mCurrentScreen : mNextScreen;
90252d9cb32608e7c3d065b4fb8e97269e238f1683eRomain Guy                if (index != mDragInfo.screen) {
90331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    final CellLayout originalCellLayout = (CellLayout) getChildAt(mDragInfo.screen);
90431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    originalCellLayout.removeView(cell);
90531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    cellLayout.addView(cell);
90631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
907263e019baafb3b6cbcfdef9c81d74a4bea769180Romain Guy                mTargetCell = estimateDropCell(x - xOffset, y - yOffset,
90870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey                        mDragInfo.spanX, mDragInfo.spanY, cell, cellLayout, mTargetCell);
90970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey                cellLayout.onDropChild(cell, mTargetCell);
91031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
91184f296c106cb1c7b6d3ae6c6d5508a17f1324e29Romain Guy                final ItemInfo info = (ItemInfo) cell.getTag();
91231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
91331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                LauncherModel.moveItemInDatabase(mLauncher, info,
91452d9cb32608e7c3d065b4fb8e97269e238f1683eRomain Guy                        LauncherSettings.Favorites.CONTAINER_DESKTOP, index, lp.cellX, lp.cellY);
91531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
91631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
91731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
91831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
91931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
92000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
9214c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
92231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
92331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
92431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
92500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
92631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
92731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
92831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset,
92900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
9304c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
93131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
93231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
93331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private void onDropExternal(int x, int y, Object dragInfo, CellLayout cellLayout) {
93431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        onDropExternal(x, y, dragInfo, cellLayout, false);
93531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
93631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
93731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private void onDropExternal(int x, int y, Object dragInfo, CellLayout cellLayout,
93831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            boolean insertAtFirst) {
93931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // Drag from somewhere else
94031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        ItemInfo info = (ItemInfo) dragInfo;
94131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
94231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View view;
94331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
94431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        switch (info.itemType) {
94531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
94631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
94731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (info.container == NO_ID) {
94831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                // Came from all apps -- make a copy
94931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                info = new ApplicationInfo((ApplicationInfo) info);
95031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
95131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            view = mLauncher.createShortcut(R.layout.application, cellLayout,
95231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    (ApplicationInfo) info);
95331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
95431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
95531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher,
95631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    (ViewGroup) getChildAt(mCurrentScreen), ((UserFolderInfo) info));
95731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            break;
95831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        default:
95931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalStateException("Unknown item type: " + info.itemType);
96031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
96131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
96231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        cellLayout.addView(view, insertAtFirst ? 0 : -1);
9630d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato        view.setHapticFeedbackEnabled(false);
96431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        view.setOnLongClickListener(mLongClickListener);
96500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        if (view instanceof DropTarget) {
966207e40ee66fddded52a028b8f68be3605da3df37Romain Guy            mDragController.addDropTarget((DropTarget) view);
96700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        }
96800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato
969263e019baafb3b6cbcfdef9c81d74a4bea769180Romain Guy        mTargetCell = estimateDropCell(x, y, 1, 1, view, cellLayout, mTargetCell);
97070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        cellLayout.onDropChild(view, mTargetCell);
97131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
97231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
97331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
97431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentScreen, lp.cellX, lp.cellY);
97531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
97670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
97770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
97870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Return the current {@link CellLayout}, correctly picking the destination
97970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * screen while a scroll is in progress.
98070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
98170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private CellLayout getCurrentDropLayout() {
98270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        int index = mScroller.isFinished() ? mCurrentScreen : mNextScreen;
98370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        return (CellLayout) getChildAt(index);
98470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
98531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
98670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
98770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * {@inheritDoc}
98870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
98970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    public boolean acceptDrop(DragSource source, int x, int y,
99000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            int xOffset, int yOffset, DragView dragView, Object dragInfo) {
9914c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        final CellLayout layout = getCurrentDropLayout();
9924c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        final CellLayout.CellInfo cellInfo = mDragInfo;
9934c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        final int spanX = cellInfo == null ? 1 : cellInfo.spanX;
9944c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        final int spanY = cellInfo == null ? 1 : cellInfo.spanY;
9954c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy
9964c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        if (mVacantCache == null) {
9974c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy            final View ignoreView = cellInfo == null ? null : cellInfo.cell;
9984c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy            mVacantCache = layout.findAllVacantCells(null, ignoreView);
9994c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        }
10004c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy
10014c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        return mVacantCache.findCellForSpan(mTempEstimate, spanX, spanY, false);
100270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
100370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
100470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
100570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * {@inheritDoc}
100670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
100770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    public Rect estimateDropLocation(DragSource source, int x, int y,
100800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            int xOffset, int yOffset, DragView dragView, Object dragInfo, Rect recycle) {
100970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final CellLayout layout = getCurrentDropLayout();
101070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
101131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout.CellInfo cellInfo = mDragInfo;
101270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final int spanX = cellInfo == null ? 1 : cellInfo.spanX;
101370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final int spanY = cellInfo == null ? 1 : cellInfo.spanY;
101470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final View ignoreView = cellInfo == null ? null : cellInfo.cell;
101570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
101670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        final Rect location = recycle != null ? recycle : new Rect();
101770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
101870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        // Find drop cell and convert into rectangle
1019263e019baafb3b6cbcfdef9c81d74a4bea769180Romain Guy        int[] dropCell = estimateDropCell(x - xOffset, y - yOffset,
102070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey                spanX, spanY, ignoreView, layout, mTempCell);
102170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
102270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        if (dropCell == null) {
102370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            return null;
102470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        }
102570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
102670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        layout.cellToPoint(dropCell[0], dropCell[1], mTempEstimate);
102770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        location.left = mTempEstimate[0];
102870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        location.top = mTempEstimate[1];
102970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
103070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        layout.cellToPoint(dropCell[0] + spanX, dropCell[1] + spanY, mTempEstimate);
103170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        location.right = mTempEstimate[0];
103270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        location.bottom = mTempEstimate[1];
103370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
103470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        return location;
103531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
103631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
103770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
103870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Calculate the nearest cell where the given object would be dropped.
103970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
1040263e019baafb3b6cbcfdef9c81d74a4bea769180Romain Guy    private int[] estimateDropCell(int pixelX, int pixelY,
104170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) {
104270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        // Create vacant cell cache if none exists
104370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        if (mVacantCache == null) {
104470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            mVacantCache = layout.findAllVacantCells(null, ignoreView);
104570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        }
104670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
104770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        // Find the best target drop location
104870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        return layout.findNearestVacantArea(pixelX, pixelY,
104970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey                spanX, spanY, mVacantCache, recycle);
105070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
105170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey
105231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void setLauncher(Launcher launcher) {
105331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mLauncher = launcher;
105431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
105531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
105600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    public void setDragController(DragController dragController) {
105700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController = dragController;
105831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
105931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
106031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void onDropCompleted(View target, boolean success) {
1061207e40ee66fddded52a028b8f68be3605da3df37Romain Guy        clearVacantCache();
1062207e40ee66fddded52a028b8f68be3605da3df37Romain Guy
106331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (success){
106431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (target != this && mDragInfo != null) {
106531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
106631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                cellLayout.removeView(mDragInfo.cell);
106700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                if (mDragInfo.cell instanceof DropTarget) {
106800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                    mDragController.removeDropTarget((DropTarget)mDragInfo.cell);
106900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                }
1070207e40ee66fddded52a028b8f68be3605da3df37Romain Guy                //final Object tag = mDragInfo.cell.getTag();
107131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
107231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
107331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (mDragInfo != null) {
107431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
107531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                cellLayout.onDropAborted(mDragInfo.cell);
107631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
107731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
107831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
107931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = null;
108031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
108131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
108231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollLeft() {
10834c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
1084f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        if (mScroller.isFinished()) {
1085f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy            if (mCurrentScreen > 0) snapToScreen(mCurrentScreen - 1);
1086f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        } else {
1087f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy            if (mNextScreen > 0) snapToScreen(mNextScreen - 1);
108831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
108931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
109031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
109131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollRight() {
10924c58c485d8c02f8ca7e8b4d93140440f6a3a5131Romain Guy        clearVacantCache();
1093f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        if (mScroller.isFinished()) {
1094f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy            if (mCurrentScreen < getChildCount() -1) snapToScreen(mCurrentScreen + 1);
1095f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy        } else {
1096f8e6a80acd4e5558fdf7e0559f1043a2b183a8faRomain Guy            if (mNextScreen < getChildCount() -1) snapToScreen(mNextScreen + 1);
109731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
109831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
109931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
110031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public int getScreenForView(View v) {
110131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int result = -1;
110231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (v != null) {
110331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            ViewParent vp = v.getParent();
110431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = getChildCount();
110531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
110631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (vp == getChildAt(i)) {
110731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    return i;
110831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
110931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
111031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
111131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return result;
111231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
1113138a04170d964da9cdec228e95b976875ae52481Karl Rosaen
111431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Folder getFolderForTag(Object tag) {
111531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screenCount = getChildCount();
111631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
111731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            CellLayout currentScreen = ((CellLayout) getChildAt(screen));
111831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
111931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
112031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
112131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
112231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
112331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    Folder f = (Folder) child;
112431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    if (f.getInfo() == tag) {
112531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        return f;
112631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
112731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
112831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
112931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
113031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
113131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
113231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
113331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public View getViewForTag(Object tag) {
113431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screenCount = getChildCount();
113531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
113631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            CellLayout currentScreen = ((CellLayout) getChildAt(screen));
113731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
113831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
113931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
114031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (child.getTag() == tag) {
114131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    return child;
114231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
114331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
114431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
114531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
114631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
114731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
114831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
114931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return True is long presses are still allowed for the current touch
115031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
115131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean allowLongPress() {
115231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return mAllowLongPress;
115331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
1154ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project
1155ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project    /**
1156ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project     * Set true to allow long-press events to be triggered, usually checked by
1157ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project     * {@link Launcher} to accept or block dpad-initiated long-presses.
1158ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project     */
1159ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project    public void setAllowLongPress(boolean allowLongPress) {
1160ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project        mAllowLongPress = allowLongPress;
1161ca9475f0403d9c0e843d5c189575068a386b2eb6The Android Open Source Project    }
116231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1163629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy    void removeItemsForPackage(final String packageName) {
116431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final int count = getChildCount();
11655c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy        final PackageManager manager = getContext().getPackageManager();
1166629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy        final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext());
1167574d20ec84551370987dde530c27ec493bdef564Romain Guy
116831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
116931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
1170629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1171629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            // Avoid ANRs by treating each screen separately
1172629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            post(new Runnable() {
1173629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                public void run() {
1174629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    final ArrayList<View> childrenToRemove = new ArrayList<View>();
1175629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childrenToRemove.clear();
1176629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1177629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    int childCount = layout.getChildCount();
1178629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
1179629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        final View view = layout.getChildAt(j);
1180629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        Object tag = view.getTag();
1181629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1182629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        if (tag instanceof ApplicationInfo) {
1183629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ApplicationInfo info = (ApplicationInfo) tag;
1184629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            // We need to check for ACTION_MAIN otherwise getComponent() might
1185629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            // return null for some shortcuts (for instance, for shortcuts to
1186629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            // web pages.)
1187629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final Intent intent = info.intent;
1188629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ComponentName name = intent.getComponent();
1189629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1190629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            if (Intent.ACTION_MAIN.equals(intent.getAction()) &&
1191629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    name != null && packageName.equals(name.getPackageName())) {
1192629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                // TODO: This should probably be done on a worker thread
1193629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                LauncherModel.deleteItemFromDatabase(mLauncher, info);
1194629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                childrenToRemove.add(view);
1195629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
1196629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof UserFolderInfo) {
1197629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final UserFolderInfo info = (UserFolderInfo) tag;
1198629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ArrayList<ApplicationInfo> contents = info.contents;
1199629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ArrayList<ApplicationInfo> toRemove =
1200629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    new ArrayList<ApplicationInfo>(1);
1201629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final int contentsCount = contents.size();
1202629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            boolean removedFromFolder = false;
1203629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1204629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            for (int k = 0; k < contentsCount; k++) {
1205629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final ApplicationInfo appInfo = contents.get(k);
1206629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final Intent intent = appInfo.intent;
1207629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final ComponentName name = intent.getComponent();
1208629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1209629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                if (Intent.ACTION_MAIN.equals(intent.getAction()) &&
1210629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                        name != null && packageName.equals(name.getPackageName())) {
1211629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    toRemove.add(appInfo);
1212629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    // TODO: This should probably be done on a worker thread
1213629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    LauncherModel.deleteItemFromDatabase(mLauncher, appInfo);
1214629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    removedFromFolder = true;
1215629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                }
1216629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
1217629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1218629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            contents.removeAll(toRemove);
1219629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            if (removedFromFolder) {
1220629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final Folder folder = getOpenFolder();
1221629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                if (folder != null) folder.notifyDataSetChanged();
1222629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
1223629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof LiveFolderInfo) {
1224629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final LiveFolderInfo info = (LiveFolderInfo) tag;
1225629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final Uri uri = info.uri;
1226629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ProviderInfo providerInfo = manager.resolveContentProvider(
1227629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    uri.getAuthority(), 0);
1228629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1229629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            if (providerInfo == null ||
1230629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    packageName.equals(providerInfo.packageName)) {
1231629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                // TODO: This should probably be done on a worker thread
1232629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                LauncherModel.deleteItemFromDatabase(mLauncher, info);
1233629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                childrenToRemove.add(view);
1234629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
1235629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof LauncherAppWidgetInfo) {
1236629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag;
1237629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final AppWidgetProviderInfo provider =
1238629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    widgets.getAppWidgetInfo(info.appWidgetId);
1239629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            if (provider == null ||
1240629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    packageName.equals(provider.provider.getPackageName())) {
1241629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                // TODO: This should probably be done on a worker thread
1242629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                LauncherModel.deleteItemFromDatabase(mLauncher, info);
1243629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                childrenToRemove.add(view);
1244629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
1245574d20ec84551370987dde530c27ec493bdef564Romain Guy                        }
1246574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
1247629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1248629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childCount = childrenToRemove.size();
1249629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
1250629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        View child = childrenToRemove.get(j);
1251629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.removeViewInLayout(child);
1252629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        if (child instanceof DropTarget) {
1253629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            mDragController.removeDropTarget((DropTarget)child);
1254629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        }
1255574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
1256629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
1257629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    if (childCount > 0) {
1258629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.requestLayout();
1259629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.invalidate();
12605c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    }
126131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
1262629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            });
126331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
126431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
1265f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
1266f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project    void updateShortcutsForPackage(String packageName) {
12679c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato        final PackageManager pm = mLauncher.getPackageManager();
12689c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato
1269f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        final int count = getChildCount();
1270f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        for (int i = 0; i < count; i++) {
1271f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
1272f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            int childCount = layout.getChildCount();
1273f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            for (int j = 0; j < childCount; j++) {
1274f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                final View view = layout.getChildAt(j);
1275f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                Object tag = view.getTag();
1276f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                if (tag instanceof ApplicationInfo) {
1277f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    ApplicationInfo info = (ApplicationInfo) tag;
1278f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // We need to check for ACTION_MAIN otherwise getComponent() might
1279f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // return null for some shortcuts (for instance, for shortcuts to
1280f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // web pages.)
1281f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final Intent intent = info.intent;
1282f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final ComponentName name = intent.getComponent();
1283f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
1284f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            Intent.ACTION_MAIN.equals(intent.getAction()) && name != null &&
1285f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            packageName.equals(name.getPackageName())) {
1286f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
12879c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato                        final Drawable icon = AppInfoCache.getIconDrawable(pm, info);
1288f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                        if (icon != null && icon != info.icon) {
1289f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            info.icon.setCallback(null);
12906665c0f1fec6ec0962896622986340081df992e7Joe Onorato                            info.icon = Utilities.createIconThumbnail(icon, mContext);
1291f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            info.filtered = true;
1292f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                            ((TextView) view).setCompoundDrawablesWithIntrinsicBounds(null,
1293f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                                    info.icon, null, null);
1294f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                        }
1295f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    }
1296f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                }
1297f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            }
1298f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        }
1299f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project    }
1300f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
130114f122bf847e50a3e7730ccbe57abc25d086a01bJoe Onorato    void moveToDefaultScreen(boolean animate) {
1302c45b16862918a0c6c253bba12032165b030565afJoe Onorato        if (animate) {
1303c45b16862918a0c6c253bba12032165b030565afJoe Onorato            snapToScreen(mDefaultScreen);
1304c45b16862918a0c6c253bba12032165b030565afJoe Onorato        } else {
1305c45b16862918a0c6c253bba12032165b030565afJoe Onorato            setCurrentScreen(mDefaultScreen);
1306c45b16862918a0c6c253bba12032165b030565afJoe Onorato        }
130731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        getChildAt(mDefaultScreen).requestFocus();
130831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
130931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
13108a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    void setIndicators(Drawable previous, Drawable next) {
13118a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        mPreviousIndicator = previous;
13128a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        mNextIndicator = next;
13138a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        previous.setLevel(mCurrentScreen);
13148a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        next.setLevel(mCurrentScreen);
13158a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    }
13168a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy
131731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public static class SavedState extends BaseSavedState {
131831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int currentScreen = -1;
131931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
132031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        SavedState(Parcelable superState) {
132131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            super(superState);
132231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
132331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
132431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        private SavedState(Parcel in) {
132531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            super(in);
132631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            currentScreen = in.readInt();
132731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
132831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
132931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        @Override
133031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        public void writeToParcel(Parcel out, int flags) {
133131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            super.writeToParcel(out, flags);
133231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            out.writeInt(currentScreen);
133331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
133431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
133531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        public static final Parcelable.Creator<SavedState> CREATOR =
133631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                new Parcelable.Creator<SavedState>() {
133731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            public SavedState createFromParcel(Parcel in) {
133831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return new SavedState(in);
133931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
134031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
134131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            public SavedState[] newArray(int size) {
134231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return new SavedState[size];
134331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
134431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        };
134531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
134631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project}
1347