1/*
2 * Copyright (C) 2015 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 */
16package com.android.settings;
17
18import android.content.Context;
19import android.support.v7.preference.Preference;
20import android.support.v7.preference.PreferenceViewHolder;
21import android.util.AttributeSet;
22import android.view.View;
23import android.view.View.OnClickListener;
24import android.widget.ImageView;
25
26public class CancellablePreference extends Preference implements OnClickListener {
27
28    private boolean mCancellable;
29    private OnCancelListener mListener;
30
31    public CancellablePreference(Context context) {
32        super(context);
33        setWidgetLayoutResource(R.layout.cancel_pref_widget);
34    }
35
36    public CancellablePreference(Context context, AttributeSet attrs) {
37        super(context, attrs);
38        setWidgetLayoutResource(R.layout.cancel_pref_widget);
39    }
40
41    public void setCancellable(boolean isCancellable) {
42        mCancellable = isCancellable;
43        notifyChanged();
44    }
45
46    public void setOnCancelListener(OnCancelListener listener) {
47        mListener = listener;
48    }
49
50    @Override
51    public void onBindViewHolder(PreferenceViewHolder view) {
52        super.onBindViewHolder(view);
53
54        ImageView cancel = (ImageView) view.findViewById(R.id.cancel);
55        cancel.setVisibility(mCancellable ? View.VISIBLE : View.INVISIBLE);
56        cancel.setOnClickListener(this);
57    }
58
59    @Override
60    public void onClick(View v) {
61        if (mListener != null) {
62            mListener.onCancel(this);
63        }
64    }
65
66    public interface OnCancelListener {
67        void onCancel(CancellablePreference preference);
68    }
69
70}
71