1/*
2 * Copyright (C) 2016 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
17package com.android.tv.dvr.ui;
18
19import android.content.DialogInterface;
20import android.os.Bundle;
21import android.os.Handler;
22import android.view.KeyEvent;
23import android.view.LayoutInflater;
24import android.view.View;
25import android.view.ViewGroup;
26
27import com.android.tv.R;
28import com.android.tv.dialog.SafeDismissDialogFragment;
29
30import java.util.concurrent.TimeUnit;
31
32public class HalfSizedDialogFragment extends SafeDismissDialogFragment {
33    public static final String DIALOG_TAG = HalfSizedDialogFragment.class.getSimpleName();
34    public static final String TRACKER_LABEL = "Half sized dialog";
35
36    private static final long AUTO_DISMISS_TIME_THRESHOLD_MS = TimeUnit.SECONDS.toMillis(30);
37
38    private OnActionClickListener mOnActionClickListener;
39
40    private Handler mHandler = new Handler();
41    private Runnable mAutoDismisser = new Runnable() {
42        @Override
43        public void run() {
44            dismiss();
45        }
46    };
47
48    @Override
49    public View onCreateView(LayoutInflater inflater, ViewGroup container,
50            Bundle savedInstanceState) {
51        return inflater.inflate(R.layout.halfsized_dialog, container, false);
52    }
53
54    @Override
55    public void onStart() {
56        super.onStart();
57        getDialog().setOnKeyListener(new DialogInterface.OnKeyListener() {
58            public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent keyEvent) {
59                mHandler.removeCallbacks(mAutoDismisser);
60                mHandler.postDelayed(mAutoDismisser, AUTO_DISMISS_TIME_THRESHOLD_MS);
61                return false;
62            }
63        });
64        mHandler.postDelayed(mAutoDismisser, AUTO_DISMISS_TIME_THRESHOLD_MS);
65    }
66
67    @Override
68    public void onPause() {
69        super.onPause();
70        if (mOnActionClickListener != null) {
71            // Dismisses the dialog to prevent the callback being forgotten during
72            // fragment re-creating.
73            dismiss();
74        }
75    }
76
77    @Override
78    public void onStop() {
79        super.onStop();
80        mHandler.removeCallbacks(mAutoDismisser);
81    }
82
83    @Override
84    public int getTheme() {
85        return R.style.Theme_TV_dialog_HalfSizedDialog;
86    }
87
88    @Override
89    public String getTrackerLabel() {
90        return TRACKER_LABEL;
91    }
92
93    /**
94     * Sets {@link OnActionClickListener} for the dialog fragment. If listener is set, the dialog
95     * will be automatically closed when it's paused to prevent the fragment being re-created by
96     * the framework, which will result the listener being forgotten.
97     */
98    public void setOnActionClickListener(OnActionClickListener listener) {
99        mOnActionClickListener = listener;
100    }
101
102    /**
103     * Returns {@link OnActionClickListener} for sub-classes or any inner fragments.
104     */
105    protected OnActionClickListener getOnActionClickListener() {
106        return mOnActionClickListener;
107    }
108
109    /**
110     * An interface to provide callbacks for half-sized dialogs. Subclasses or inner fragments
111     * should invoke {@link OnActionClickListener#onActionClick(long)} and provide the identifier
112     * of the action user clicked.
113     */
114    public interface OnActionClickListener {
115        void onActionClick(long actionId);
116    }
117}