1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.tv.menu;
import android.support.annotation.Nullable;
import com.android.tv.ChannelTuner;
import com.android.tv.TvOptionsManager;
import com.android.tv.TvOptionsManager.OptionChangedListener;
import com.android.tv.TvOptionsManager.OptionType;
import com.android.tv.data.api.Channel;
import com.android.tv.menu.MenuRowFactory.TvOptionsRow;
import com.android.tv.ui.TunableTvView;
import com.android.tv.ui.TunableTvView.OnScreenBlockingChangedListener;
/**
* Update menu items when needed.
*
* <p>As the menu is updated when it shows up, this class handles only the dynamic updates.
*/
public class MenuUpdater {
private final Menu mMenu;
// Can be null for testing.
@Nullable private final TunableTvView mTvView;
@Nullable private final TvOptionsManager mOptionsManager;
private ChannelTuner mChannelTuner;
private final ChannelTuner.Listener mChannelTunerListener =
new ChannelTuner.Listener() {
@Override
public void onLoadFinished() {}
@Override
public void onBrowsableChannelListChanged() {
mMenu.update(ChannelsRow.ID);
}
@Override
public void onCurrentChannelUnavailable(Channel channel) {}
@Override
public void onChannelChanged(Channel previousChannel, Channel currentChannel) {
mMenu.update(ChannelsRow.ID);
}
};
private final OptionChangedListener mOptionChangeListener =
new OptionChangedListener() {
@Override
public void onOptionChanged(@OptionType int optionType, String newString) {
mMenu.update(TvOptionsRow.ID);
}
};
public MenuUpdater(Menu menu, TunableTvView tvView, TvOptionsManager optionsManager) {
mMenu = menu;
mTvView = tvView;
mOptionsManager = optionsManager;
if (mTvView != null) {
mTvView.setOnScreenBlockedListener(
new OnScreenBlockingChangedListener() {
@Override
public void onScreenBlockingChanged(boolean blocked) {
mMenu.update(PlayControlsRow.ID);
}
});
}
if (mOptionsManager != null) {
mOptionsManager.setOptionChangedListener(
TvOptionsManager.OPTION_CLOSED_CAPTIONS, mOptionChangeListener);
mOptionsManager.setOptionChangedListener(
TvOptionsManager.OPTION_DISPLAY_MODE, mOptionChangeListener);
mOptionsManager.setOptionChangedListener(
TvOptionsManager.OPTION_MULTI_AUDIO, mOptionChangeListener);
}
}
/**
* Sets the instance of {@link ChannelTuner}. Call this method when the channel tuner is ready.
*/
public void setChannelTuner(ChannelTuner channelTuner) {
if (mChannelTuner != null) {
mChannelTuner.removeListener(mChannelTunerListener);
}
mChannelTuner = channelTuner;
if (mChannelTuner != null) {
mChannelTuner.addListener(mChannelTunerListener);
}
}
/** Called when the stream information changes. */
public void onStreamInfoChanged() {
mMenu.update(TvOptionsRow.ID);
}
/** Called at the end of the menu's lifetime. */
public void release() {
if (mChannelTuner != null) {
mChannelTuner.removeListener(mChannelTunerListener);
}
if (mTvView != null) {
mTvView.setOnScreenBlockedListener(null);
}
if (mOptionsManager != null) {
mOptionsManager.setOptionChangedListener(TvOptionsManager.OPTION_CLOSED_CAPTIONS, null);
mOptionsManager.setOptionChangedListener(TvOptionsManager.OPTION_DISPLAY_MODE, null);
mOptionsManager.setOptionChangedListener(TvOptionsManager.OPTION_MULTI_AUDIO, null);
}
}
}
|
