blob: be1f3c5f932f3b37b93a996274764dc3bbbe7489 (
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
|
/* 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/. */
"use strict";
/**
* Helper class to disable panel rendering when it is in background.
*
* Toolbox code hides the iframes when switching to another panel
* and triggers `visibilitychange` events.
*
* See devtools/client/framework/toolbox.js:setIframeVisible().
*/
const {
Component,
} = require("resource://devtools/client/shared/vendor/react.js");
const PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
class VisibilityHandler extends Component {
static get propTypes() {
return {
children: PropTypes.element.isRequired,
};
}
constructor(props) {
super(props);
this.onVisibilityChange = this.onVisibilityChange.bind(this);
}
componentDidMount() {
document.addEventListener("visibilitychange", this.onVisibilityChange);
}
shouldComponentUpdate() {
return document.visibilityState == "visible";
}
componentWillUnmount() {
document.removeEventListener("visibilitychange", this.onVisibilityChange);
}
onVisibilityChange() {
if (document.visibilityState == "visible") {
this.forceUpdate();
}
}
render() {
return this.props.children;
}
}
module.exports = VisibilityHandler;
|
