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
123
124
125
126
127
128
129
130
131
|
/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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.vaadin.ui;
import java.util.Collection;
import org.jsoup.nodes.Attributes;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import com.vaadin.server.Resource;
import com.vaadin.shared.ui.video.VideoConstants;
import com.vaadin.shared.ui.video.VideoState;
import com.vaadin.ui.declarative.DesignAttributeHandler;
import com.vaadin.ui.declarative.DesignContext;
/**
* The Video component translates into an HTML5 <video> element and as
* such is only supported in browsers that support HTML5 media markup. Browsers
* that do not support HTML5 display the text or HTML set by calling
* {@link #setAltText(String)}.
*
* A flash-player fallback can be implemented by setting HTML content allowed (
* {@link #setHtmlContentAllowed(boolean)} and calling
* {@link #setAltText(String)} with the flash player markup. An example of flash
* fallback can be found at the <a href=
* "https://developer.mozilla.org/En/Using_audio_and_video_in_Firefox#Using_Flash"
* >Mozilla Developer Network</a>.
*
* Multiple sources can be specified. Which of the sources is used is selected
* by the browser depending on which file formats it supports. See <a
* href="http://en.wikipedia.org/wiki/HTML5_video#Table">wikipedia</a> for a
* table of formats supported by different browsers.
*
* @author Vaadin Ltd
* @since 6.7.0
*/
public class Video extends AbstractMedia {
@Override
protected VideoState getState() {
return (VideoState) super.getState();
}
public Video() {
this("", null);
}
/**
* @param caption
* The caption for this video.
*/
public Video(String caption) {
this(caption, null);
}
/**
* @param caption
* The caption for this video.
* @param source
* The Resource containing the video to play.
*/
public Video(String caption, Resource source) {
setCaption(caption);
setSource(source);
setShowControls(true);
}
/**
* Sets the poster image, which is shown in place of the video before the
* user presses play.
*
* @param poster
*/
public void setPoster(Resource poster) {
setResource(VideoConstants.POSTER_RESOURCE, poster);
}
/**
* @return The poster image.
*/
public Resource getPoster() {
return getResource(VideoConstants.POSTER_RESOURCE);
}
@Override
public void readDesign(Element design, DesignContext designContext) {
Elements elems = design.getElementsByTag("poster");
for (Element poster : elems) {
if (getPoster() == null && poster.hasAttr("href")) {
setPoster(DesignAttributeHandler.readAttribute("href",
poster.attributes(), Resource.class));
}
poster.remove();
}
// Poster is extracted so AbstractMedia does not include it in alt text
super.readDesign(design, designContext);
}
@Override
public void writeDesign(Element design, DesignContext designContext) {
super.writeDesign(design, designContext);
if (getPoster() != null) {
Attributes attr = design.appendElement("poster").attributes();
DesignAttributeHandler.writeAttribute("href", attr, getPoster(),
null, Resource.class);
}
}
@Override
protected Collection<String> getCustomAttributes() {
Collection<String> result = super.getCustomAttributes();
result.add("poster");
return result;
}
}
|
