ChannelCardView.java revision 721bd0da688cd552737fbb753a00597f95103b95 
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
37/**
38 * A view to render channel card.
39 */
40public class ChannelCardView extends BaseCardView<Channel> {
41    private static final String TAG = MenuView.TAG;
42    private static final boolean DEBUG = MenuView.DEBUG;
43
44    private final int mCardImageWidth;
45    private final int mCardImageHeight;
46
47    private ImageView mImageView;
48    private View mGradientView;
49    private TextView mChannelNumberNameView;
50    private ProgressBar mProgressBar;
51    private Channel mChannel;
52    private Program mProgram;
53    private final MainActivity mMainActivity;
54
55    public ChannelCardView(Context context) {
56        this(context, null);
57    }
58
59    public ChannelCardView(Context context, AttributeSet attrs) {
60        this(context, attrs, 0);
61    }
62
63    public ChannelCardView(Context context, AttributeSet attrs, int defStyle) {
64        super(context, attrs, defStyle);
65        mCardImageWidth = getResources().getDimensionPixelSize(R.dimen.card_image_layout_width);
66        mCardImageHeight = getResources().getDimensionPixelSize(R.dimen.card_image_layout_height);
67        mMainActivity = (MainActivity) context;
68    }
69
70    @Override
71    protected void onFinishInflate() {
72        super.onFinishInflate();
73        mImageView = (ImageView) findViewById(R.id.image);
74        mGradientView = findViewById(R.id.image_gradient);
75        mChannelNumberNameView = (TextView) findViewById(R.id.channel_number_and_name);
76        mProgressBar = (ProgressBar) findViewById(R.id.progress);
77    }
78
79    @Override
80    public void onBind(Channel channel, boolean selected) {
81        if (DEBUG) {
82            Log.d(TAG, "onBind(channelName=" + channel.getDisplayName() + ", selected=" + selected
83                    + ")");
84        }
85        mChannel = channel;
86        mProgram = null;
87        mChannelNumberNameView.setText(mChannel.getDisplayText());
88        mChannelNumberNameView.setVisibility(VISIBLE);
89        mImageView.setImageResource(R.drawable.ic_recent_thumbnail_default);
90        mImageView.setBackgroundResource(R.color.channel_card);
91        mGradientView.setVisibility(View.GONE);
92        mProgressBar.setVisibility(GONE);
93
94        setTextViewEnabled(true);
95        if (mMainActivity.getParentalControlSettings().isParentalControlsEnabled()
96                && mChannel.isLocked()) {
97            setText(R.string.program_title_for_blocked_channel);
98            return;
99        } else {
100            setText("");
101        }
102
103        updateProgramInformation();
104        // Call super.onBind() at the end intentionally. In order to correctly handle extension of
105        // text view, text should be set before calling super.onBind.
106        super.onBind(channel, selected);
107    }
108
109    private static ImageLoader.ImageLoaderCallback<ChannelCardView> createProgramPosterArtCallback(
110            ChannelCardView cardView, final Program program) {
111        return new ImageLoader.ImageLoaderCallback<ChannelCardView>(cardView) {
112            @Override
113            public void onBitmapLoaded(ChannelCardView cardView, @Nullable Bitmap posterArt) {
114                if (posterArt == null || cardView.mProgram == null
115                        || program.getChannelId() != cardView.mProgram.getChannelId()
116                        || program.getChannelId() != cardView.mChannel.getId()) {
117                    return;
118                }
119                cardView.updatePosterArt(posterArt);
120            }
121        };
122    }
123
124    private void updatePosterArt(Bitmap posterArt) {
125        mImageView.setImageBitmap(posterArt);
126        mGradientView.setVisibility(View.VISIBLE);
127    }
128
129    private void updateProgramInformation() {
130        if (mChannel == null) {
131            return;
132        }
133        mProgram = mMainActivity.getProgramDataManager().getCurrentProgram(mChannel.getId());
134        if (mProgram == null || TextUtils.isEmpty(mProgram.getTitle())) {
135            setTextViewEnabled(false);
136            setText(R.string.program_title_for_no_information);
137        } else {
138            setText(mProgram.getTitle());
139        }
140
141        if (mProgram == null) {
142            return;
143        }
144
145        long startTime = mProgram.getStartTimeUtcMillis();
146        long endTime = mProgram.getEndTimeUtcMillis();
147        long currTime = System.currentTimeMillis();
148        mProgressBar.setVisibility(View.VISIBLE);
149        if (currTime <= startTime) {
150            mProgressBar.setProgress(0);
151        } else if (currTime >= endTime) {
152            mProgressBar.setProgress(100);
153        } else {
154            mProgressBar.setProgress((int) (100 * (currTime - startTime) / (endTime - startTime)));
155        }
156
157        if (!(getContext() instanceof MainActivity)) {
158            Log.e(TAG, "Fails to check program's content rating.");
159            return;
160        }
161        ParentalControlSettings parental = mMainActivity.getParentalControlSettings();
162        if ((!parental.isParentalControlsEnabled()
163                || !parental.isRatingBlocked(mProgram.getContentRatings()))
164                && !TextUtils.isEmpty(mProgram.getPosterArtUri())) {
165            mProgram.loadPosterArt(getContext(), mCardImageWidth, mCardImageHeight,
166                    createProgramPosterArtCallback(this, mProgram));
167        }
168    }
169}
170