blob: 00249fad88895d8ccc9a7368387efb545898c4c3 (
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
|
/*
* This file is part of Cockpit.
*
* Copyright (C) 2022 Red Hat, Inc.
*
* Cockpit is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* Cockpit is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Cockpit; If not, see <http://www.gnu.org/licenses/>.
*/
function debug() {
if (window.debugging == "all" || window.debugging?.includes("style")) {
console.debug([`cockpit-dark-theme: ${document.documentElement.id}:`, ...arguments].join(" "));
}
}
function changeDarkThemeClass(documentElement, dark_mode) {
debug(`Setting cockpit theme to ${dark_mode ? "dark" : "light"}`);
if (dark_mode) {
documentElement.classList.add('pf-v5-theme-dark');
} else {
documentElement.classList.remove('pf-v5-theme-dark');
}
}
function _setDarkMode(_style) {
const style = _style || localStorage.getItem('shell:style') || 'auto';
let dark_mode;
// If a user set's an explicit theme, ignore system changes.
if ((window.matchMedia?.('(prefers-color-scheme: dark)').matches && style === "auto") || style === "dark") {
dark_mode = true;
} else {
dark_mode = false;
}
changeDarkThemeClass(document.documentElement, dark_mode);
}
window.addEventListener("storage", event => {
if (event.key === "shell:style") {
debug(`Storage element 'shell:style' changed from ${event.oldValue} to ${event.newValue}`);
_setDarkMode();
}
});
// When changing the theme from the shell switcher the localstorage change will not fire for the same page (aka shell)
// so we need to listen for the event on the window object.
window.addEventListener("cockpit-style", event => {
const style = event.detail.style;
debug(`Event received from shell with 'cockpit-style' ${style}`);
_setDarkMode(style);
});
window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => {
debug(`Operating system theme preference changed to ${window.matchMedia?.('(prefers-color-scheme: dark)').matches ? "dark" : "light"}`);
_setDarkMode();
});
_setDarkMode();
|
