ChannelBannerView.java revision d8a314d5263813f1eafe22c1dffeb1fd510036a6 
1/*
2 * Copyright (C) 2014 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.ui;
18
19import android.content.Context;
20import android.database.ContentObserver;
21import android.media.tv.TvContract;
22import android.net.Uri;
23import android.os.Handler;
24import android.text.TextUtils;
25import android.text.format.DateFormat;
26import android.util.AttributeSet;
27import android.util.Log;
28import android.view.View;
29import android.widget.LinearLayout;
30import android.widget.ProgressBar;
31import android.widget.TextView;
32
33import com.android.tv.R;
34import com.android.tv.data.ChannelMap;
35import com.android.tv.data.Program;
36import com.android.tv.data.StreamInfo;
37import com.android.tv.util.Utils;
38
39/**
40 * A view to render channel banner.
41 */
42public class ChannelBannerView extends LinearLayout {
43    private TextView mClosedCaptionTextView;
44    private TextView mResolutionTextView;
45    private TextView mAspectRatioTextView;
46    private TextView mAudioChannelTextView;
47    private ProgressBar mRemainingTimeView;
48    private TextView mProgrameDescriptionTextView;
49    private TextView mChannelTextView;
50    private TextView mChannelNameTextView;
51    private TextView mProgramTextView;
52    private TextView mProgramTimeTextView;
53    private Uri mCurrentChannelUri;
54
55    private final ContentObserver mProgramUpdateObserver = new ContentObserver(new Handler()) {
56        @Override
57        public void onChange(boolean selfChange, Uri uri) {
58            updateProgramInfo();
59        }
60    };
61
62    public ChannelBannerView(Context context) {
63        super(context);
64        mContext = context;
65    }
66
67    public ChannelBannerView(Context context, AttributeSet attrs) {
68        super(context, attrs);
69        mContext = context;
70    }
71
72    public ChannelBannerView(Context context, AttributeSet attrs, int defStyle) {
73        super(context, attrs, defStyle);
74        mContext = context;
75    }
76
77    @Override
78    protected void onAttachedToWindow() {
79        super.onAttachedToWindow();
80        getContext().getContentResolver().registerContentObserver(TvContract.Programs.CONTENT_URI,
81                true, mProgramUpdateObserver);
82    }
83
84    @Override
85    protected void onDetachedFromWindow() {
86        getContext().getContentResolver().unregisterContentObserver(mProgramUpdateObserver);
87        super.onDetachedFromWindow();
88    }
89
90    @Override
91    protected void onFinishInflate() {
92        super.onFinishInflate();
93
94        mClosedCaptionTextView = (TextView) findViewById(R.id.closed_caption);
95        mResolutionTextView = (TextView) findViewById(R.id.resolution);
96        mAspectRatioTextView = (TextView) findViewById(R.id.aspect_ratio);
97        mAudioChannelTextView = (TextView) findViewById(R.id.audio_channel);
98        mRemainingTimeView = (ProgressBar) findViewById(R.id.remaining_time);
99        mChannelTextView = (TextView) findViewById(R.id.channel_text);
100        mChannelNameTextView = (TextView) findViewById(R.id.channel_name);
101        mProgramTimeTextView = (TextView) findViewById(R.id.program_time_text);
102        mProgrameDescriptionTextView = (TextView) findViewById(R.id.program_description);
103        mProgramTextView = (TextView) findViewById(R.id.program_text);
104    }
105
106    public void updateViews(ChannelMap channelMap, StreamInfo info) {
107        if (channelMap == null || !channelMap.isLoadFinished()) {
108            return;
109        }
110
111        if (info.hasClosedCaption()) {
112            mClosedCaptionTextView.setVisibility(View.VISIBLE);
113            mClosedCaptionTextView.setText("CC");
114            mClosedCaptionTextView.setVisibility(View.VISIBLE);
115        } else {
116            mClosedCaptionTextView.setVisibility(View.GONE);
117        }
118        if (info.getVideoDefinitionLevel() != StreamInfo.VIDEO_DEFINITION_LEVEL_UNKNOWN) {
119            mResolutionTextView.setVisibility(View.VISIBLE);
120            mResolutionTextView.setText(Utils.getVideoDefinitionLevelString(
121                    info.getVideoDefinitionLevel()));
122            mResolutionTextView.setVisibility(View.VISIBLE);
123        } else {
124            mResolutionTextView.setVisibility(View.GONE);
125        }
126        // TODO: implement aspect ratio.
127        mAspectRatioTextView.setVisibility(View.GONE);
128        if (!TextUtils.isEmpty(Utils.getAudioChannelString(info.getAudioChannelCount()))) {
129            mAudioChannelTextView.setVisibility(View.VISIBLE);
130            mAudioChannelTextView.setText(Utils.getAudioChannelString(info.getAudioChannelCount()));
131            mAudioChannelTextView.setVisibility(View.VISIBLE);
132        } else {
133            mAudioChannelTextView.setVisibility(View.GONE);
134        }
135
136        String displayNumber = channelMap.getCurrentDisplayNumber();
137        String displayName = channelMap.getCurrentDisplayName();
138        if (displayNumber == null) {
139            displayNumber = "";
140        }
141        if (displayName == null) {
142            displayName = "";
143        }
144        mChannelTextView.setText(displayNumber);
145        mChannelNameTextView.setText(displayName);
146
147        mCurrentChannelUri = channelMap.getCurrentChannelUri();
148        updateProgramInfo();
149    }
150
151    private String getFormattedTimeString(long time) {
152        return DateFormat.format(
153                getContext().getString(R.string.channel_banner_time_format), time).toString();
154    }
155
156    public void updateProgramInfo() {
157        if (mCurrentChannelUri == null) {
158            handleNoProgramInformation();
159            return;
160        }
161
162        Program program = Utils.getCurrentProgram(mContext, mCurrentChannelUri);
163        if (program == null) {
164            handleNoProgramInformation();
165            return;
166        }
167        if (!TextUtils.isEmpty(program.getTitle())) {
168            mProgramTextView.setText(program.getTitle());
169
170            long startTime = program.getStartTimeUtcMillis();
171            long endTime = program.getEndTimeUtcMillis();
172            if (startTime > 0 && endTime > 0) {
173                mProgramTimeTextView.setVisibility(View.VISIBLE);
174                mRemainingTimeView.setVisibility(View.VISIBLE);
175
176                String startTimeText = getFormattedTimeString(startTime);
177                String endTimeText = getFormattedTimeString(endTime);
178
179                mProgramTimeTextView.setText(mContext.getString(
180                        R.string.channel_banner_program_time_format, startTimeText, endTimeText));
181
182                long currTime = System.currentTimeMillis();
183                if (currTime <= startTime) {
184                    mRemainingTimeView.setProgress(0);
185                } else if (currTime >= endTime) {
186                    mRemainingTimeView.setProgress(100);
187                } else {
188                    mRemainingTimeView.setProgress(
189                            (int) (100 *(currTime - startTime) / (endTime - startTime)));
190                }
191            } else {
192                mProgramTimeTextView.setVisibility(View.GONE);
193                mRemainingTimeView.setVisibility(View.GONE);
194            }
195        } else {
196            mProgramTextView.setText(mContext.getString(R.string.channel_banner_no_title));
197            mProgramTimeTextView.setVisibility(View.GONE);
198            mRemainingTimeView.setVisibility(View.GONE);
199        }
200        if (!TextUtils.isEmpty(program.getDescription())) {
201            mProgrameDescriptionTextView.setVisibility(View.VISIBLE);
202            mProgrameDescriptionTextView.setText(program.getDescription());
203        } else {
204            mProgrameDescriptionTextView.setVisibility(View.GONE);
205        }
206    }
207
208    private void handleNoProgramInformation() {
209        mProgramTextView.setText(mContext.getString(R.string.channel_banner_no_title));
210        mProgramTimeTextView.setVisibility(View.GONE);
211        mRemainingTimeView.setVisibility(View.GONE);
212        mProgrameDescriptionTextView.setVisibility(View.GONE);
213    }
214}
215