content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.amnesica.kryptey.inputmethod.latin.settings;
  
  import android.content.Context;
  import android.content.res.Resources;
  import android.os.Bundle;
  import android.preference.Preference;
  import android.preference.PreferenceScreen;
  
  import com.amnesica.kryptey.inputmethod.R;
  import com.amnesica.kryptey.inputmethod.keyboard.KeyboardTheme;
  import com.amnesica.kryptey.inputmethod.latin.settings.RadioButtonPreference.OnRadioButtonClickedListener;
  
  /**
   * "Keyboard theme" settings sub screen.
   */
  public final class ThemeSettingsFragment extends SubScreenFragment
      implements OnRadioButtonClickedListener {
    private int mSelectedThemeId;
  
    static class KeyboardThemePreference extends RadioButtonPreference {
      final int mThemeId;
  
      KeyboardThemePreference(final Context context, final String name, final int id) {
        super(context);
        setTitle(name);
        mThemeId = id;
      }
    }
  
    static void updateKeyboardThemeSummary(final Preference pref) {
      final Context context = pref.getContext();
      final Resources res = context.getResources();
      final KeyboardTheme keyboardTheme = KeyboardTheme.getKeyboardTheme(context);
      final String[] keyboardThemeNames = res.getStringArray(R.array.keyboard_theme_names);
      final int[] keyboardThemeIds = res.getIntArray(R.array.keyboard_theme_ids);
      for (int index = 0; index < keyboardThemeIds.length; index++) {
        if (keyboardTheme.mThemeId == keyboardThemeIds[index]) {
          pref.setSummary(keyboardThemeNames[index]);
          return;
        }
      }
    }
  
    @Override
    public void onCreate(final Bundle icicle) {
      super.onCreate(icicle);
      addPreferencesFromResource(R.xml.prefs_screen_theme);
      final PreferenceScreen screen = getPreferenceScreen();
      final Context context = getActivity();
      final Resources res = getResources();
      final String[] keyboardThemeNames = res.getStringArray(R.array.keyboard_theme_names);
      final int[] keyboardThemeIds = res.getIntArray(R.array.keyboard_theme_ids);
      for (int index = 0; index < keyboardThemeIds.length; index++) {
        final KeyboardThemePreference pref = new KeyboardThemePreference(
            context, keyboardThemeNames[index], keyboardThemeIds[index]);
        screen.addPreference(pref);
        pref.setOnRadioButtonClickedListener(this);
      }
      final KeyboardTheme keyboardTheme = KeyboardTheme.getKeyboardTheme(context);
      mSelectedThemeId = keyboardTheme.mThemeId;
    }
  
    @Override
    public void onRadioButtonClicked(final RadioButtonPreference preference) {
      if (preference instanceof KeyboardThemePreference) {
        final KeyboardThemePreference pref = (KeyboardThemePreference) preference;
        mSelectedThemeId = pref.mThemeId;
        updateSelected();
      }
    }
  
    @Override
    public void onResume() {
      super.onResume();
      updateSelected();
    }
  
    @Override
    public void onPause() {
      super.onPause();
      KeyboardTheme.saveKeyboardThemeId(mSelectedThemeId, getSharedPreferences());
      Settings.removeKeyboardColor(getSharedPreferences());
    }
  
    private void updateSelected() {
      final PreferenceScreen screen = getPreferenceScreen();
      final int count = screen.getPreferenceCount();
      for (int index = 0; index < count; index++) {
        final Preference preference = screen.getPreference(index);
        if (preference instanceof KeyboardThemePreference) {
          final KeyboardThemePreference pref = (KeyboardThemePreference) preference;
          final boolean selected = (mSelectedThemeId == pref.mThemeId);
          pref.setSelected(selected);
        }
      }
    }
  }
  