blob: da4a25794a602fa7332592f3549b8b22fc6045d3 (
plain)
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
|
// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
export default class PostImageEmbed extends React.Component {
constructor(props) {
super(props);
this.handleLoadComplete = this.handleLoadComplete.bind(this);
this.handleLoadError = this.handleLoadError.bind(this);
this.state = {
loaded: false,
errored: false
};
}
componentWillMount() {
this.loadImg(this.props.link);
}
componentWillReceiveProps(nextProps) {
if (nextProps.link !== this.props.link) {
this.setState({
loaded: false,
errored: false
});
}
}
componentDidUpdate(prevProps) {
if (!this.state.loaded && prevProps.link !== this.props.link) {
this.loadImg(this.props.link);
}
}
loadImg(src) {
const img = new Image();
img.onload = this.handleLoadComplete;
img.onerror = this.handleLoadError;
img.src = src;
}
handleLoadComplete() {
this.setState({
loaded: true
});
}
handleLoadError() {
this.setState({
errored: true,
loaded: true
});
}
render() {
if (this.state.errored) {
return null;
}
if (!this.state.loaded) {
return (
<img
className='img-div placeholder'
height='500px'
/>
);
}
return (
<img
className='img-div'
src={this.props.link}
/>
);
}
}
PostImageEmbed.propTypes = {
link: React.PropTypes.string.isRequired
};
|
