ChannelCardView.java revision 633eb826b8c97731dfc5ef12c7bf78a63734275d 
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 */
16
17package com.android.tv.menu;
18
19import android.content.Context;
20import android.graphics.Bitmap;
21import android.support.annotation.Nullable;
22import android.text.TextUtils;
23import android.util.AttributeSet;
24import android.util.Log;
25import android.view.View;
26import android.widget.ImageView;
27import android.widget.ProgressBar;
28import android.widget.TextView;
29
30import com.android.tv.MainActivity;
31import com.android.tv.R;
32import com.android.tv.data.Channel;
33import com.android.tv.data.Program;
34import com.android.tv.parental.ParentalControlSettings;
35import com.android.tv.util.ImageLoader;
36
37import java.util.Objects;
38
39/**
40 * A view to render channel card.
41 */
42public class ChannelCardView extends BaseCardView<ChannelsRowItem> {
43    private static final String TAG = MenuView.TAG;
44    private static final boolean DEBUG = MenuView.DEBUG;
45
46    private final int mCardImageWidth;
47    private final int mCardImageHeight;
48
49    private ImageView mImageView;
50    private TextView mChannelNumberNameView;
51    private ProgressBar mProgressBar;
52    private Channel mChannel;
53    private Program mProgram;
54    private String mPosterArtUri;
55    private final MainActivity mMainActivity;
56
57    public ChannelCardView(Context context) {
58        this(context, null);
59    }
60
61    public ChannelCardView(Context context, AttributeSet attrs) {
62        this(context, attrs, 0);
63    }
64
65    public ChannelCardView(Context context, AttributeSet attrs, int defStyle) {
66        super(context, attrs, defStyle);
67        mCardImageWidth = getResources().getDimensionPixelSize(R.dimen.card_image_layout_width);
68        mCardImageHeight = getResources().getDimensionPixelSize(R.dimen.card_image_layout_height);
69        mMainActivity = (MainActivity) context;
70    }
71
72    @Override
73    protected void onFinishInflate() {
74        super.onFinishInflate();
75        mImageView = (ImageView) findViewById(R.id.image);
76        mImageView.setBackgroundResource(R.color.channel_card);
77        mChannelNumberNameView = (TextView) findViewById(R.id.channel_number_and_name);
78        mProgressBar = (ProgressBar) findViewById(R.id.progress);
79    }
80
81    @Override
82    public void onBind(ChannelsRowItem item, boolean selected) {
83        if (DEBUG) {
84            Log.d(TAG, "onBind(channelName=" + item.getChannel().getDisplayName() + ", selected="
85                    + selected + ")");
86        }
87        updateChannel(item);
88        updateProgram();
89        super.onBind(item, selected);
90    }
91
92    private void updateChannel(ChannelsRowItem item) {
93        if (!item.getChannel().equals(mChannel)) {
94            mChannel = item.getChannel();
95            mChannelNumberNameView.setText(mChannel.getDisplayText());
96            mChannelNumberNameView.setVisibility(VISIBLE);
97        }
98    }
99
100    private void updateProgram() {
101        ParentalControlSettings parental = mMainActivity.getParentalControlSettings();
102        if (parental.isParentalControlsEnabled() && mChannel.isLocked()) {
103            setText(R.string.program_title_for_blocked_channel);
104            mProgram = null;
105        } else {
106            Program currentProgram =
107                    mMainActivity.getProgramDataManager().getCurrentProgram(mChannel.getId());
108            if (!Objects.equals(currentProgram, mProgram)) {
109                mProgram = currentProgram;
110                if (mProgram == null || TextUtils.isEmpty(mProgram.getTitle())) {
111                    setTextViewEnabled(false);
112                    setText(R.string.program_title_for_no_information);
113                } else {
114                    setTextViewEnabled(true);
115                    setText(mProgram.getTitle());
116                }
117            }
118        }
119        if (mProgram == null) {
120            mProgressBar.setVisibility(GONE);
121            setPosterArt(null);
122        } else {
123            // Update progress.
124            mProgressBar.setVisibility(View.VISIBLE);
125            long startTime = mProgram.getStartTimeUtcMillis();
126            long endTime = mProgram.getEndTimeUtcMillis();
127            long currTime = System.currentTimeMillis();
128            if (currTime <= startTime) {
129                mProgressBar.setProgress(0);
130            } else if (currTime >= endTime) {
131                mProgressBar.setProgress(100);
132            } else {
133                mProgressBar.setProgress(
134                        (int) (100 * (currTime - startTime) / (endTime - startTime)));
135            }
136            // Update image.
137            if (!parental.isParentalControlsEnabled()
138                    || !parental.isRatingBlocked(mProgram.getContentRatings())) {
139                setPosterArt(mProgram.getPosterArtUri());
140            }
141        }
142    }
143
144    private static ImageLoader.ImageLoaderCallback<ChannelCardView> createProgramPosterArtCallback(
145            ChannelCardView cardView, final Program program) {
146        return new ImageLoader.ImageLoaderCallback<ChannelCardView>(cardView) {
147            @Override
148            public void onBitmapLoaded(ChannelCardView cardView, @Nullable Bitmap posterArt) {
149                if (posterArt == null || cardView.mProgram == null
150                        || program.getChannelId() != cardView.mProgram.getChannelId()
151                        || program.getChannelId() != cardView.mChannel.getId()) {
152                    return;
153                }
154                cardView.updatePosterArt(posterArt);
155            }
156        };
157    }
158
159    private void setPosterArt(String posterArtUri) {
160        if (!TextUtils.equals(mPosterArtUri, posterArtUri)) {
161            mPosterArtUri = posterArtUri;
162            if (posterArtUri == null
163                    || !mProgram.loadPosterArt(getContext(), mCardImageWidth, mCardImageHeight,
164                            createProgramPosterArtCallback(this, mProgram))) {
165                mImageView.setImageResource(R.drawable.ic_recent_thumbnail_default);
166                mImageView.setForeground(null);
167            }
168        }
169    }
170
171    private void updatePosterArt(Bitmap posterArt) {
172        mImageView.setImageBitmap(posterArt);
173        mImageView.setForeground(getContext().getDrawable(R.drawable.card_image_gradient));
174    }
175}