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
|
import Status from './status';
import ImmutablePropTypes from 'react-immutable-proptypes';
import PureRenderMixin from 'react-addons-pure-render-mixin';
import { ScrollContainer } from 'react-router-scroll';
import StatusContainer from '../containers/status_container';
const StatusList = React.createClass({
propTypes: {
statusIds: ImmutablePropTypes.list.isRequired,
onScrollToBottom: React.PropTypes.func,
trackScroll: React.PropTypes.bool
},
getDefaultProps () {
return {
trackScroll: true
};
},
getInitialState () {
return {
now: (new Date()).toString()
};
},
mixins: [PureRenderMixin],
componentDidMount () {
this._interval = setInterval(() => this.setState({ now: (new Date()).toString() }), 60000);
},
componentWillUnmount () {
clearInterval(this._interval);
},
handleScroll (e) {
const { scrollTop, scrollHeight, clientHeight } = e.target;
this._oldScrollPosition = scrollHeight - scrollTop;
if (scrollTop === scrollHeight - clientHeight) {
this.props.onScrollToBottom();
}
},
componentDidUpdate (prevProps) {
if (prevProps.statusIds.size < this.props.statusIds.size && prevProps.statusIds.first() !== this.props.statusIds.first() && this._oldScrollPosition) {
const node = ReactDOM.findDOMNode(this);
if (node.scrollTop > 0) {
node.scrollTop = node.scrollHeight - this._oldScrollPosition;
}
}
},
render () {
const { statusIds, onScrollToBottom, trackScroll } = this.props;
const scrollableArea = (
<div className='scrollable' onScroll={this.handleScroll}>
<div>
{statusIds.map((statusId) => {
return <StatusContainer key={statusId} id={statusId} now={this.state.now} />;
})}
</div>
</div>
);
if (trackScroll) {
return (
<ScrollContainer scrollKey='status-list'>
{scrollableArea}
</ScrollContainer>
);
} else {
return scrollableArea;
}
}
});
export default StatusList;
|
