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.SharedPreferences;
  import android.content.res.Resources;
  import android.os.Build;
  import android.os.Bundle;
  
  import com.amnesica.kryptey.inputmethod.R;
  import com.amnesica.kryptey.inputmethod.keyboard.KeyboardTheme;
  
  /**
   * "Appearance" settings sub screen.
   */
  public final class AppearanceSettingsFragment extends SubScreenFragment {
    @Override
    public void onCreate(final Bundle icicle) {
      super.onCreate(icicle);
      addPreferencesFromResource(R.xml.prefs_screen_appearance);
  
      if (Build.VERSION.SDK_INT < Build.VERSION_CODES.P) {
        removePreference(Settings.PREF_MATCHING_NAVBAR_COLOR);
      }
  
      setupKeyboardHeightSettings();
      setupKeyboardColorSettings();
    }
  
    @Override
    public void onResume() {
      super.onResume();
      refreshSettings();
    }
  
    @Override
    public void onSharedPreferenceChanged(final SharedPreferences prefs, final String key) {
      refreshSettings();
    }
  
    private void refreshSettings() {
      ThemeSettingsFragment.updateKeyboardThemeSummary(findPreference(Settings.SCREEN_THEME));
  
      final SharedPreferences prefs = getSharedPreferences();
      final KeyboardTheme theme = KeyboardTheme.getKeyboardTheme(prefs);
      setPreferenceEnabled(Settings.PREF_KEYBOARD_COLOR, false);
    }
  
    private void setupKeyboardHeightSettings() {
      final SeekBarDialogPreference pref = (SeekBarDialogPreference) findPreference(
          Settings.PREF_KEYBOARD_HEIGHT);
      if (pref == null) {
        return;
      }
      final SharedPreferences prefs = getSharedPreferences();
      final Resources res = getResources();
      pref.setInterface(new SeekBarDialogPreference.ValueProxy() {
        private static final float PERCENTAGE_FLOAT = 100.0f;
  
        private float getValueFromPercentage(final int percentage) {
          return percentage / PERCENTAGE_FLOAT;
        }
  
        private int getPercentageFromValue(final float floatValue) {
          return Math.round(floatValue * PERCENTAGE_FLOAT);
        }
  
        @Override
        public void writeValue(final int value, final String key) {
          prefs.edit().putFloat(key, getValueFromPercentage(value)).apply();
        }
  
        @Override
        public void writeDefaultValue(final String key) {
          prefs.edit().remove(key).apply();
        }
  
        @Override
        public int readValue(final String key) {
          return getPercentageFromValue(Settings.readKeyboardHeight(prefs, 1));
        }
  
        @Override
        public int readDefaultValue(final String key) {
          return getPercentageFromValue(1);
        }
  
        @Override
        public String getValueText(final int value) {
          if (value < 0) {
            return res.getString(R.string.settings_system_default);
          }
          return res.getString(R.string.abbreviation_unit_percent, value);
        }
  
        @Override
        public void feedbackValue(final int value) {
        }
      });
    }
  
    private void setupKeyboardColorSettings() {
      final ColorDialogPreference pref = (ColorDialogPreference) findPreference(
          Settings.PREF_KEYBOARD_COLOR);
      if (pref == null) {
        return;
      }
      final SharedPreferences prefs = getSharedPreferences();
      final Context context = this.getActivity().getApplicationContext();
      pref.setInterface(new ColorDialogPreference.ValueProxy() {
        @Override
        public void writeValue(final int value, final String key) {
          prefs.edit().putInt(key, value).apply();
        }
  
        @Override
        public int readValue(final String key) {
          return Settings.readKeyboardColor(prefs, context);
        }
  
        @Override
        public void writeDefaultValue(final String key) {
          Settings.removeKeyboardColor(prefs);
        }
      });
    }
  }
  