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.preference.Preference;
  import android.util.AttributeSet;
  import android.view.View;
  import android.widget.RadioButton;
  
  import com.amnesica.kryptey.inputmethod.R;
  
  /**
   * Radio Button preference
   */
  public class RadioButtonPreference extends Preference {
    interface OnRadioButtonClickedListener {
      /**
       * Called when this preference needs to be saved its state.
       *
       * @param preference This preference.
       */
      void onRadioButtonClicked(RadioButtonPreference preference);
    }
  
    private boolean mIsSelected;
    private RadioButton mRadioButton;
    private OnRadioButtonClickedListener mListener;
    private final View.OnClickListener mClickListener = new View.OnClickListener() {
      @Override
      public void onClick(final View v) {
        callListenerOnRadioButtonClicked();
      }
    };
  
    public RadioButtonPreference(final Context context) {
      this(context, null);
    }
  
    public RadioButtonPreference(final Context context, final AttributeSet attrs) {
      this(context, attrs, android.R.attr.preferenceStyle);
    }
  
    public RadioButtonPreference(final Context context, final AttributeSet attrs,
                                 final int defStyleAttr) {
      super(context, attrs, defStyleAttr);
      setWidgetLayoutResource(R.layout.radio_button_preference_widget);
    }
  
    public void setOnRadioButtonClickedListener(final OnRadioButtonClickedListener listener) {
      mListener = listener;
    }
  
    void callListenerOnRadioButtonClicked() {
      if (mListener != null) {
        mListener.onRadioButtonClicked(this);
      }
    }
  
    @Override
    protected void onBindView(final View view) {
      super.onBindView(view);
      mRadioButton = view.findViewById(R.id.radio_button);
      mRadioButton.setChecked(mIsSelected);
      mRadioButton.setOnClickListener(mClickListener);
      view.setOnClickListener(mClickListener);
    }
  
    public void setSelected(final boolean selected) {
      if (selected == mIsSelected) {
        return;
      }
      mIsSelected = selected;
      if (mRadioButton != null) {
        mRadioButton.setChecked(selected);
      }
      notifyChanged();
    }
  }
  