1/*
2 * Copyright (C) 2010 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.settings;
18
19import com.android.settings.bluetooth.DockEventReceiver;
20
21import android.app.AlertDialog;
22import android.app.Dialog;
23import android.bluetooth.BluetoothDevice;
24import android.content.BroadcastReceiver;
25import android.content.ContentResolver;
26import android.content.Context;
27import android.content.Intent;
28import android.content.IntentFilter;
29import android.os.Bundle;
30import android.preference.CheckBoxPreference;
31import android.preference.Preference;
32import android.preference.PreferenceScreen;
33import android.provider.Settings;
34
35public class DockSettings extends SettingsPreferenceFragment {
36
37    private static final int DIALOG_NOT_DOCKED = 1;
38    private static final String KEY_AUDIO_SETTINGS = "dock_audio";
39    private static final String KEY_DOCK_SOUNDS = "dock_sounds";
40    private Preference mAudioSettings;
41    private CheckBoxPreference mDockSounds;
42    private Intent mDockIntent;
43
44    private BroadcastReceiver mReceiver = new BroadcastReceiver() {
45        @Override
46        public void onReceive(Context context, Intent intent) {
47            if (intent.getAction().equals(Intent.ACTION_DOCK_EVENT)) {
48                handleDockChange(intent);
49            }
50        }
51    };
52
53    @Override
54    public void onCreate(Bundle savedInstanceState) {
55        super.onCreate(savedInstanceState);
56        addPreferencesFromResource(R.xml.dock_settings);
57
58        initDockSettings();
59    }
60
61    @Override
62    public void onResume() {
63        super.onResume();
64
65        IntentFilter filter = new IntentFilter(Intent.ACTION_DOCK_EVENT);
66        getActivity().registerReceiver(mReceiver, filter);
67    }
68
69    @Override
70    public void onPause() {
71        super.onPause();
72
73        getActivity().unregisterReceiver(mReceiver);
74    }
75
76    private void initDockSettings() {
77        ContentResolver resolver = getContentResolver();
78
79        mAudioSettings = findPreference(KEY_AUDIO_SETTINGS);
80        if (mAudioSettings != null) {
81            mAudioSettings.setSummary(R.string.dock_audio_summary_none);
82        }
83
84        mDockSounds = (CheckBoxPreference) findPreference(KEY_DOCK_SOUNDS);
85        mDockSounds.setPersistent(false);
86        mDockSounds.setChecked(Settings.System.getInt(resolver,
87                Settings.System.DOCK_SOUNDS_ENABLED, 0) != 0);
88    }
89
90    private void handleDockChange(Intent intent) {
91        if (mAudioSettings != null) {
92            int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 0);
93
94            boolean isBluetooth = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE) != null;
95
96            if (!isBluetooth) {
97                // No dock audio if not on Bluetooth.
98                mAudioSettings.setEnabled(false);
99                mAudioSettings.setSummary(R.string.dock_audio_summary_unknown);
100            } else {
101                mAudioSettings.setEnabled(true);
102
103                mDockIntent = intent;
104                int resId = R.string.dock_audio_summary_unknown;
105                switch (dockState) {
106                case Intent.EXTRA_DOCK_STATE_CAR:
107                    resId = R.string.dock_audio_summary_car;
108                    break;
109                case Intent.EXTRA_DOCK_STATE_DESK:
110                case Intent.EXTRA_DOCK_STATE_LE_DESK:
111                case Intent.EXTRA_DOCK_STATE_HE_DESK:
112                    resId = R.string.dock_audio_summary_desk;
113                    break;
114                case Intent.EXTRA_DOCK_STATE_UNDOCKED:
115                    resId = R.string.dock_audio_summary_none;
116                }
117                mAudioSettings.setSummary(resId);
118            }
119
120            if (dockState != Intent.EXTRA_DOCK_STATE_UNDOCKED) {
121                // remove undocked dialog if currently showing.
122                try {
123                    removeDialog(DIALOG_NOT_DOCKED);
124                } catch (IllegalArgumentException iae) {
125                    // Maybe it was already dismissed
126                }
127            }
128        }
129    }
130
131    @Override
132    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
133        if (preference == mAudioSettings) {
134            int dockState = mDockIntent != null
135                    ? mDockIntent.getIntExtra(Intent.EXTRA_DOCK_STATE, 0)
136                    : Intent.EXTRA_DOCK_STATE_UNDOCKED;
137            if (dockState == Intent.EXTRA_DOCK_STATE_UNDOCKED) {
138                showDialog(DIALOG_NOT_DOCKED);
139            } else {
140                Intent i = new Intent(mDockIntent);
141                i.setAction(DockEventReceiver.ACTION_DOCK_SHOW_UI);
142                i.setClass(getActivity(), DockEventReceiver.class);
143                getActivity().sendBroadcast(i);
144            }
145        } else if (preference == mDockSounds) {
146            Settings.System.putInt(getContentResolver(), Settings.System.DOCK_SOUNDS_ENABLED,
147                    mDockSounds.isChecked() ? 1 : 0);
148        }
149
150        return true;
151    }
152
153    @Override
154    public Dialog onCreateDialog(int id) {
155        if (id == DIALOG_NOT_DOCKED) {
156            return createUndockedMessage();
157        }
158        return null;
159    }
160
161    private Dialog createUndockedMessage() {
162        final AlertDialog.Builder ab = new AlertDialog.Builder(getActivity());
163        ab.setTitle(R.string.dock_not_found_title);
164        ab.setMessage(R.string.dock_not_found_text);
165        ab.setPositiveButton(android.R.string.ok, null);
166        return ab.create();
167    }
168}
169