packages/apps/Settings/src/com/android/settings/DockSettings.java

   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
  17 package com.android.settings;
  18
  19 import android.app.AlertDialog;
  20 import android.app.Dialog;
  21 import android.bluetooth.BluetoothDevice;
  22 import android.content.BroadcastReceiver;
  23 import android.content.ContentResolver;
  24 import android.content.Context;
  25 import android.content.Intent;
  26 import android.content.IntentFilter;
  27 import android.os.Bundle;
  28 import android.preference.CheckBoxPreference;
  29 import android.preference.Preference;
  30 import android.preference.PreferenceActivity;
  31 import android.preference.PreferenceScreen;
  32 import android.provider.Settings;
  33
  34 import com.android.settings.bluetooth.DockEventReceiver;
  35
  36 public class DockSettings extends PreferenceActivity {
  37
  38     private static final int DIALOG_NOT_DOCKED = 1;
  39     private static final String KEY_AUDIO_SETTINGS = "dock_audio";
  40     private static final String KEY_DOCK_SOUNDS = "dock_sounds";
  41     private Preference mAudioSettings;
  42     private CheckBoxPreference mDockSounds;
  43     private Intent mDockIntent;
  44
  45     private BroadcastReceiver mReceiver = new BroadcastReceiver() {
  46         @Override
  47         public void onReceive(Context context, Intent intent) {
  48             if (intent.getAction().equals(Intent.ACTION_DOCK_EVENT)) {
  49                 handleDockChange(intent);
  50             }
  51         }
  52     };
  53
  54     @Override
  55     protected void onCreate(Bundle savedInstanceState) {
  56         super.onCreate(savedInstanceState);
  57         ContentResolver resolver = getContentResolver();
  58         addPreferencesFromResource(R.xml.dock_settings);
  59
  60         initDockSettings();
  61     }
  62
  63     @Override
  64     protected void onResume() {
  65         super.onResume();
  66
  67         IntentFilter filter = new IntentFilter(Intent.ACTION_DOCK_EVENT);
  68         registerReceiver(mReceiver, filter);
  69     }
  70
  71     @Override
  72     protected void onPause() {
  73         super.onPause();
  74
  75         unregisterReceiver(mReceiver);
  76     }
  77
  78     private void initDockSettings() {
  79         ContentResolver resolver = getContentResolver();
  80
  81         mAudioSettings = findPreference(KEY_AUDIO_SETTINGS);
  82         if (mAudioSettings != null) {
  83             mAudioSettings.setSummary(R.string.dock_audio_summary_none);
  84         }
  85
  86         mDockSounds = (CheckBoxPreference) findPreference(KEY_DOCK_SOUNDS);
  87         mDockSounds.setPersistent(false);
  88         mDockSounds.setChecked(Settings.System.getInt(resolver,
  89                 Settings.System.DOCK_SOUNDS_ENABLED, 0) != 0);
  90     }
  91
  92     private void handleDockChange(Intent intent) {
  93         if (mAudioSettings != null) {
  94             int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 0);
  95
  96             boolean isBluetooth = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE) != null;
  97
  98             if (!isBluetooth) {
  99                 // No dock audio if not on Bluetooth.
 100                 mAudioSettings.setEnabled(false);
 101                 mAudioSettings.setSummary(R.string.dock_audio_summary_unknown);
 102             } else {
 103                 mAudioSettings.setEnabled(true);
 104
 105                 mDockIntent = intent;
 106                 int resId = R.string.dock_audio_summary_unknown;
 107                 switch (dockState) {
 108                 case Intent.EXTRA_DOCK_STATE_CAR:
 109                     resId = R.string.dock_audio_summary_car;
 110                     break;
 111                 case Intent.EXTRA_DOCK_STATE_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                     dismissDialog(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(this, DockEventReceiver.class);
 143                 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(this);
 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 }