101 lines
2.5 KiB
JavaScript
101 lines
2.5 KiB
JavaScript
/* global prefs */
|
|
/* exported colorScheme */
|
|
|
|
'use strict';
|
|
|
|
const colorScheme = (() => {
|
|
let systemPreferDark = false;
|
|
let timePreferDark = false;
|
|
const changeListeners = new Set();
|
|
|
|
const checkTime = ['schemeSwitcher.nightStart', 'schemeSwitcher.nightEnd'];
|
|
prefs.subscribe(checkTime, (key, value) => {
|
|
updateTimePreferDark();
|
|
createAlarm(key, value);
|
|
});
|
|
checkTime.forEach(key => createAlarm(key, prefs.get(key)));
|
|
|
|
prefs.subscribe(['schemeSwitcher.enabled'], emitChange);
|
|
|
|
chrome.alarms.onAlarm.addListener(info => {
|
|
if (checkTime.includes(info.name)) {
|
|
updateTimePreferDark();
|
|
}
|
|
});
|
|
|
|
updateSystemPreferDark();
|
|
updateTimePreferDark();
|
|
|
|
return {shouldIncludeStyle, onChange, updateSystemPreferDark};
|
|
|
|
function createAlarm(key, value) {
|
|
const date = new Date();
|
|
applyDate(date, value);
|
|
if (date.getTime() < Date.now()) {
|
|
date.setDate(date.getDate() + 1);
|
|
}
|
|
chrome.alarms.create(key, {
|
|
when: date.getTime(),
|
|
periodInMinutes: 24 * 60,
|
|
});
|
|
}
|
|
|
|
function shouldIncludeStyle(style) {
|
|
const isDark = style.preferScheme === 'dark';
|
|
const isLight = style.preferScheme === 'light';
|
|
if (!isDark && !isLight) {
|
|
return true;
|
|
}
|
|
const switcherState = prefs.get('schemeSwitcher.enabled');
|
|
if (switcherState === 'never') {
|
|
return true;
|
|
}
|
|
if (switcherState === 'system') {
|
|
return systemPreferDark && isDark ||
|
|
!systemPreferDark && isLight;
|
|
}
|
|
return timePreferDark && isDark ||
|
|
!timePreferDark && isLight;
|
|
}
|
|
|
|
function updateSystemPreferDark() {
|
|
const oldValue = systemPreferDark;
|
|
systemPreferDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
|
|
if (systemPreferDark !== oldValue) {
|
|
emitChange();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function updateTimePreferDark() {
|
|
const oldValue = timePreferDark;
|
|
const date = new Date();
|
|
const now = date.getTime();
|
|
applyDate(date, prefs.get('schemeSwitcher.nightStart'));
|
|
const start = date.getTime();
|
|
applyDate(date, prefs.get('schemeSwitcher.nightEnd'));
|
|
const end = date.getTime();
|
|
timePreferDark = start > end ?
|
|
now >= start || now < end :
|
|
now >= start && now < end;
|
|
if (timePreferDark !== oldValue) {
|
|
emitChange();
|
|
}
|
|
}
|
|
|
|
function applyDate(date, time) {
|
|
const [h, m] = time.split(':').map(Number);
|
|
date.setHours(h, m, 0, 0);
|
|
}
|
|
|
|
function onChange(listener) {
|
|
changeListeners.add(listener);
|
|
}
|
|
|
|
function emitChange() {
|
|
for (const listener of changeListeners) {
|
|
listener();
|
|
}
|
|
}
|
|
})();
|