1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.magicsmoke;
18
19import android.app.Activity;
20import android.app.WallpaperManager;
21import android.app.WallpaperInfo;
22import android.app.Dialog;
23import android.service.wallpaper.IWallpaperConnection;
24import android.service.wallpaper.IWallpaperService;
25import android.service.wallpaper.IWallpaperEngine;
26import android.service.wallpaper.WallpaperSettingsActivity;
27import android.content.ServiceConnection;
28import android.content.Intent;
29import android.content.Context;
30import android.content.ComponentName;
31import android.content.SharedPreferences;
32import android.content.SharedPreferences.Editor;
33import android.os.RemoteException;
34import android.os.IBinder;
35import android.os.ParcelFileDescriptor;
36import android.os.Bundle;
37import android.view.MotionEvent;
38import android.view.View;
39import android.view.WindowManager;
40import android.view.ViewGroup;
41import android.view.Window;
42import android.view.LayoutInflater;
43import android.util.Log;
44import android.widget.TextView;
45
46public class MagicSmokeSelector extends Activity {
47
48    private static final String LOG_TAG = "MagicSmokeSelector";
49
50    private WallpaperManager mWallpaperManager;
51    private WallpaperConnection mWallpaperConnection;
52
53    private Intent mWallpaperIntent;
54    private SharedPreferences mSharedPref;
55    private int mCurrentPreset;
56
57    @Override
58    protected void onCreate(Bundle savedInstanceState) {
59        super.onCreate(savedInstanceState);
60
61        setContentView(R.layout.selector);
62
63        mWallpaperIntent = new Intent(this, MagicSmoke.class);
64
65        mWallpaperManager = WallpaperManager.getInstance(this);
66        mWallpaperConnection = new WallpaperConnection(mWallpaperIntent);
67
68        mSharedPref = getSharedPreferences("magicsmoke", Context.MODE_PRIVATE);
69        mCurrentPreset = mSharedPref.getInt("preset", MagicSmokeRS.DEFAULT_PRESET);
70        if (mCurrentPreset >= MagicSmokeRS.mPreset.length) {
71            mCurrentPreset = 0;
72            updatePrefs();
73        }
74    }
75
76    @Override
77    public void onResume() {
78        super.onResume();
79        if (mWallpaperConnection != null && mWallpaperConnection.mEngine != null) {
80            try {
81                mWallpaperConnection.mEngine.setVisibility(true);
82            } catch (RemoteException e) {
83                // Ignore
84            }
85        }
86    }
87
88    @Override
89    public void onPause() {
90        super.onPause();
91        if (mWallpaperConnection != null && mWallpaperConnection.mEngine != null) {
92            try {
93                mWallpaperConnection.mEngine.setVisibility(false);
94            } catch (RemoteException e) {
95                // Ignore
96            }
97        }
98    }
99
100    @Override
101    public void onAttachedToWindow() {
102        super.onAttachedToWindow();
103
104        if (!mWallpaperConnection.connect()) {
105            mWallpaperConnection = null;
106        }
107    }
108
109    @Override
110    public void onDetachedFromWindow() {
111        super.onDetachedFromWindow();
112
113        if (mWallpaperConnection != null) {
114            mWallpaperConnection.disconnect();
115        }
116        mWallpaperConnection = null;
117    }
118
119    @Override
120    public boolean onTouchEvent(MotionEvent event) {
121        // TODO: make this conditional on preview mode. Right now we
122        // don't get touch events in preview mode.
123        switch(event.getAction()) {
124            case MotionEvent.ACTION_DOWN:
125                if (mCurrentPreset == 0) {
126                    mCurrentPreset = MagicSmokeRS.mPreset.length - 1;
127                } else {
128                    mCurrentPreset--;
129                }
130                updatePrefs();
131                return true;
132        }
133
134        return super.onTouchEvent(event);
135    }
136
137    private void updatePrefs() {
138        Editor edit = mSharedPref.edit();
139        edit.putInt("preset", mCurrentPreset);
140        edit.apply();
141    }
142
143    class WallpaperConnection extends IWallpaperConnection.Stub implements ServiceConnection {
144        final Intent mIntent;
145        IWallpaperService mService;
146        IWallpaperEngine mEngine;
147        boolean mConnected;
148
149        WallpaperConnection(Intent intent) {
150            mIntent = intent;
151        }
152
153        public boolean connect() {
154            synchronized (this) {
155                if (!bindService(mIntent, this, Context.BIND_AUTO_CREATE)) {
156                    return false;
157                }
158
159                mConnected = true;
160                return true;
161            }
162        }
163
164        public void disconnect() {
165            synchronized (this) {
166                mConnected = false;
167                if (mEngine != null) {
168                    try {
169                        mEngine.destroy();
170                    } catch (RemoteException e) {
171                        // Ignore
172                    }
173                    mEngine = null;
174                }
175                unbindService(this);
176                mService = null;
177            }
178        }
179
180        public void onServiceConnected(ComponentName name, IBinder service) {
181            if (mWallpaperConnection == this) {
182                mService = IWallpaperService.Stub.asInterface(service);
183                try {
184                    final View view = findViewById(R.id.backgroundview);
185                    final View root = view.getRootView();
186                    mService.attach(this, view.getWindowToken(),
187                            WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA_OVERLAY,
188                            true, root.getWidth(), root.getHeight());
189                } catch (RemoteException e) {
190                    Log.w(LOG_TAG, "Failed attaching wallpaper; clearing", e);
191                }
192            }
193        }
194
195        public void onServiceDisconnected(ComponentName name) {
196            mService = null;
197            mEngine = null;
198            if (mWallpaperConnection == this) {
199                Log.w(LOG_TAG, "Wallpaper service gone: " + name);
200            }
201        }
202
203        public void attachEngine(IWallpaperEngine engine) {
204            synchronized (this) {
205                if (mConnected) {
206                    mEngine = engine;
207                    try {
208                        engine.setVisibility(true);
209                    } catch (RemoteException e) {
210                        // Ignore
211                    }
212                } else {
213                    try {
214                        engine.destroy();
215                    } catch (RemoteException e) {
216                        // Ignore
217                    }
218                }
219            }
220        }
221
222        public ParcelFileDescriptor setWallpaper(String name) {
223            return null;
224        }
225
226        public void engineShown(IWallpaperEngine engine) throws RemoteException {
227        }
228    }
229}
230