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      1 /*
      2  * Copyright (C) 2014 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.inputmethod.latin.settings;
     18 
     19 import android.content.Context;
     20 import android.content.res.Resources;
     21 import android.os.Bundle;
     22 import android.preference.Preference;
     23 import android.preference.PreferenceScreen;
     24 
     25 import com.android.inputmethod.keyboard.KeyboardTheme;
     26 import com.android.inputmethod.latin.R;
     27 import com.android.inputmethod.latin.settings.RadioButtonPreference.OnRadioButtonClickedListener;
     28 
     29 /**
     30  * "Keyboard theme" settings sub screen.
     31  */
     32 public final class ThemeSettingsFragment extends SubScreenFragment
     33         implements OnRadioButtonClickedListener {
     34     private int mSelectedThemeId;
     35 
     36     static class KeyboardThemePreference extends RadioButtonPreference {
     37         final int mThemeId;
     38 
     39         KeyboardThemePreference(final Context context, final String name, final int id) {
     40             super(context);
     41             setTitle(name);
     42             mThemeId = id;
     43         }
     44     }
     45 
     46     static void updateKeyboardThemeSummary(final Preference pref) {
     47         final Context context = pref.getContext();
     48         final Resources res = context.getResources();
     49         final KeyboardTheme keyboardTheme = KeyboardTheme.getKeyboardTheme(context);
     50         final String[] keyboardThemeNames = res.getStringArray(R.array.keyboard_theme_names);
     51         final int[] keyboardThemeIds = res.getIntArray(R.array.keyboard_theme_ids);
     52         for (int index = 0; index < keyboardThemeNames.length; index++) {
     53             if (keyboardTheme.mThemeId == keyboardThemeIds[index]) {
     54                 pref.setSummary(keyboardThemeNames[index]);
     55                 return;
     56             }
     57         }
     58     }
     59 
     60     @Override
     61     public void onCreate(final Bundle icicle) {
     62         super.onCreate(icicle);
     63         addPreferencesFromResource(R.xml.prefs_screen_theme);
     64         final PreferenceScreen screen = getPreferenceScreen();
     65         final Context context = getActivity();
     66         final Resources res = getResources();
     67         final String[] keyboardThemeNames = res.getStringArray(R.array.keyboard_theme_names);
     68         final int[] keyboardThemeIds = res.getIntArray(R.array.keyboard_theme_ids);
     69         for (int index = 0; index < keyboardThemeNames.length; index++) {
     70             final KeyboardThemePreference pref = new KeyboardThemePreference(
     71                     context, keyboardThemeNames[index], keyboardThemeIds[index]);
     72             screen.addPreference(pref);
     73             pref.setOnRadioButtonClickedListener(this);
     74         }
     75         final KeyboardTheme keyboardTheme = KeyboardTheme.getKeyboardTheme(context);
     76         mSelectedThemeId = keyboardTheme.mThemeId;
     77     }
     78 
     79     @Override
     80     public void onRadioButtonClicked(final RadioButtonPreference preference) {
     81         if (preference instanceof KeyboardThemePreference) {
     82             final KeyboardThemePreference pref = (KeyboardThemePreference)preference;
     83             mSelectedThemeId = pref.mThemeId;
     84             updateSelected();
     85         }
     86     }
     87 
     88     @Override
     89     public void onResume() {
     90         super.onResume();
     91         updateSelected();
     92     }
     93 
     94     @Override
     95     public void onPause() {
     96         super.onPause();
     97         KeyboardTheme.saveKeyboardThemeId(mSelectedThemeId, getSharedPreferences());
     98     }
     99 
    100     private void updateSelected() {
    101         final PreferenceScreen screen = getPreferenceScreen();
    102         final int count = screen.getPreferenceCount();
    103         for (int index = 0; index < count; index++) {
    104             final Preference preference = screen.getPreference(index);
    105             if (preference instanceof KeyboardThemePreference) {
    106                 final KeyboardThemePreference pref = (KeyboardThemePreference)preference;
    107                 final boolean selected = (mSelectedThemeId == pref.mThemeId);
    108                 pref.setSelected(selected);
    109             }
    110         }
    111     }
    112 }
    113