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      1 /*
      2  * Copyright (C) 2008 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.content.Intent;
     20 import android.os.Bundle;
     21 import android.preference.CheckBoxPreference;
     22 import android.preference.ListPreference;
     23 import android.preference.Preference;
     24 import android.preference.Preference.OnPreferenceChangeListener;
     25 import android.preference.PreferenceScreen;
     26 import android.provider.Settings;
     27 
     28 public class ApplicationSettings extends SettingsPreferenceFragment {
     29 
     30     private static final String KEY_TOGGLE_ADVANCED_SETTINGS = "toggle_advanced_settings";
     31     private static final String KEY_APP_INSTALL_LOCATION = "app_install_location";
     32 
     33     // App installation location. Default is ask the user.
     34     private static final int APP_INSTALL_AUTO = 0;
     35     private static final int APP_INSTALL_DEVICE = 1;
     36     private static final int APP_INSTALL_SDCARD = 2;
     37 
     38     private static final String APP_INSTALL_DEVICE_ID = "device";
     39     private static final String APP_INSTALL_SDCARD_ID = "sdcard";
     40     private static final String APP_INSTALL_AUTO_ID = "auto";
     41 
     42     private CheckBoxPreference mToggleAdvancedSettings;
     43     private ListPreference mInstallLocation;
     44 
     45     @Override
     46     public void onCreate(Bundle icicle) {
     47         super.onCreate(icicle);
     48 
     49         addPreferencesFromResource(R.xml.application_settings);
     50 
     51         mToggleAdvancedSettings = (CheckBoxPreference)findPreference(
     52                 KEY_TOGGLE_ADVANCED_SETTINGS);
     53         mToggleAdvancedSettings.setChecked(isAdvancedSettingsEnabled());
     54         getPreferenceScreen().removePreference(mToggleAdvancedSettings);
     55 
     56         // not ready for prime time yet
     57         if (false) {
     58             getPreferenceScreen().removePreference(mInstallLocation);
     59         }
     60 
     61         mInstallLocation = (ListPreference) findPreference(KEY_APP_INSTALL_LOCATION);
     62         // Is app default install location set?
     63         boolean userSetInstLocation = (Settings.Global.getInt(getContentResolver(),
     64                 Settings.Global.SET_INSTALL_LOCATION, 0) != 0);
     65         if (!userSetInstLocation) {
     66             getPreferenceScreen().removePreference(mInstallLocation);
     67         } else {
     68             mInstallLocation.setValue(getAppInstallLocation());
     69             mInstallLocation.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
     70                 public boolean onPreferenceChange(Preference preference, Object newValue) {
     71                     String value = (String) newValue;
     72                     handleUpdateAppInstallLocation(value);
     73                     return false;
     74                 }
     75             });
     76         }
     77     }
     78 
     79     protected void handleUpdateAppInstallLocation(final String value) {
     80         if(APP_INSTALL_DEVICE_ID.equals(value)) {
     81             Settings.Global.putInt(getContentResolver(),
     82                     Settings.Global.DEFAULT_INSTALL_LOCATION, APP_INSTALL_DEVICE);
     83         } else if (APP_INSTALL_SDCARD_ID.equals(value)) {
     84             Settings.Global.putInt(getContentResolver(),
     85                     Settings.Global.DEFAULT_INSTALL_LOCATION, APP_INSTALL_SDCARD);
     86         } else if (APP_INSTALL_AUTO_ID.equals(value)) {
     87             Settings.Global.putInt(getContentResolver(),
     88                     Settings.Global.DEFAULT_INSTALL_LOCATION, APP_INSTALL_AUTO);
     89         } else {
     90             // Should not happen, default to prompt...
     91             Settings.Global.putInt(getContentResolver(),
     92                     Settings.Global.DEFAULT_INSTALL_LOCATION, APP_INSTALL_AUTO);
     93         }
     94         mInstallLocation.setValue(value);
     95     }
     96 
     97     @Override
     98     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
     99         if (preference == mToggleAdvancedSettings) {
    100             boolean value = mToggleAdvancedSettings.isChecked();
    101             setAdvancedSettingsEnabled(value);
    102         }
    103 
    104         return super.onPreferenceTreeClick(preferenceScreen, preference);
    105     }
    106 
    107     private boolean isAdvancedSettingsEnabled() {
    108         return Settings.System.getInt(getContentResolver(),
    109                                       Settings.System.ADVANCED_SETTINGS,
    110                                       Settings.System.ADVANCED_SETTINGS_DEFAULT) > 0;
    111     }
    112 
    113     private void setAdvancedSettingsEnabled(boolean enabled) {
    114         int value = enabled ? 1 : 0;
    115         // Change the system setting
    116         Settings.Secure.putInt(getContentResolver(), Settings.System.ADVANCED_SETTINGS, value);
    117         // TODO: the settings thing should broadcast this for thread safety purposes.
    118         Intent intent = new Intent(Intent.ACTION_ADVANCED_SETTINGS_CHANGED);
    119         intent.putExtra("state", value);
    120         getActivity().sendBroadcast(intent);
    121     }
    122 
    123     private String getAppInstallLocation() {
    124         int selectedLocation = Settings.Global.getInt(getContentResolver(),
    125                 Settings.Global.DEFAULT_INSTALL_LOCATION, APP_INSTALL_AUTO);
    126         if (selectedLocation == APP_INSTALL_DEVICE) {
    127             return APP_INSTALL_DEVICE_ID;
    128         } else if (selectedLocation == APP_INSTALL_SDCARD) {
    129             return APP_INSTALL_SDCARD_ID;
    130         } else  if (selectedLocation == APP_INSTALL_AUTO) {
    131             return APP_INSTALL_AUTO_ID;
    132         } else {
    133             // Default value, should not happen.
    134             return APP_INSTALL_AUTO_ID;
    135         }
    136     }
    137 }
    138