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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
// @flow
import { Component } from "react";
import { range, isEmpty } from "lodash";
import { connect } from "../../utils/connect";
import { getHighlightedLineRange } from "../../selectors";
type OwnProps = {|
editor: Object,
|};
type Props = {
highlightedLineRange: Object,
editor: Object,
};
class HighlightLines extends Component<Props> {
highlightLineRange: Function;
componentDidMount() {
this.highlightLineRange();
}
componentWillUpdate() {
this.clearHighlightRange();
}
componentDidUpdate() {
this.highlightLineRange();
}
componentWillUnmount() {
this.clearHighlightRange();
}
clearHighlightRange() {
const { highlightedLineRange, editor } = this.props;
const { codeMirror } = editor;
if (isEmpty(highlightedLineRange) || !codeMirror) {
return;
}
const { start, end } = highlightedLineRange;
codeMirror.operation(() => {
range(start - 1, end).forEach(line => {
codeMirror.removeLineClass(line, "wrapClass", "highlight-lines");
});
});
}
highlightLineRange = () => {
const { highlightedLineRange, editor } = this.props;
const { codeMirror } = editor;
if (isEmpty(highlightedLineRange) || !codeMirror) {
return;
}
const { start, end } = highlightedLineRange;
codeMirror.operation(() => {
editor.alignLine(start);
range(start - 1, end).forEach(line => {
codeMirror.addLineClass(line, "wrapClass", "highlight-lines");
});
});
};
render() {
return null;
}
}
export default connect<Props, OwnProps, _, _, _, _>(state => ({
highlightedLineRange: getHighlightedLineRange(state),
}))(HighlightLines);
|
