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      1 /*
      2  * Copyright (C) 2017 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.widget;
     18 
     19 import android.content.Context;
     20 import android.support.v7.preference.PreferenceViewHolder;
     21 import android.util.AttributeSet;
     22 import android.view.View;
     23 
     24 import com.android.settings.R;
     25 import com.android.settingslib.RestrictedPreference;
     26 
     27 /**
     28  * A preference with a Gear on the side
     29  */
     30 public class GearPreference extends RestrictedPreference implements View.OnClickListener {
     31 
     32     private OnGearClickListener mOnGearClickListener;
     33 
     34     public GearPreference(Context context, AttributeSet attrs) {
     35         super(context, attrs);
     36     }
     37 
     38     public void setOnGearClickListener(OnGearClickListener l) {
     39         mOnGearClickListener = l;
     40         notifyChanged();
     41     }
     42 
     43     @Override
     44     protected int getSecondTargetResId() {
     45         return R.layout.preference_widget_gear;
     46     }
     47 
     48     @Override
     49     protected boolean shouldHideSecondTarget() {
     50         return mOnGearClickListener == null;
     51     }
     52 
     53     @Override
     54     public void onBindViewHolder(PreferenceViewHolder holder) {
     55         super.onBindViewHolder(holder);
     56         final View gear = holder.findViewById(R.id.settings_button);
     57         if (mOnGearClickListener != null) {
     58             gear.setVisibility(View.VISIBLE);
     59             gear.setOnClickListener(this);
     60         } else {
     61             gear.setVisibility(View.GONE);
     62             gear.setOnClickListener(null);
     63         }
     64         gear.setEnabled(true);  // Make gear available even if the preference itself is disabled.
     65     }
     66 
     67     @Override
     68     public void onClick(View v) {
     69         if (v.getId() == R.id.settings_button) {
     70             if (mOnGearClickListener != null) {
     71                 mOnGearClickListener.onGearClick(this);
     72             }
     73         }
     74     }
     75 
     76     public interface OnGearClickListener {
     77         void onGearClick(GearPreference p);
     78     }
     79 }
     80