/
dark-mode.js.es6
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/
dark-mode.js.es6
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import themeSelector from "discourse/lib/theme-selector";
import { withPluginApi } from "discourse/lib/plugin-api";
import showModal from "discourse/lib/show-modal";
import Site from "discourse/models/site";
export default {
name: "discourse-dark-mode",
initialize() {
withPluginApi("0.8.31", api => {
const currentUser = api.getCurrentUser();
const selectedUserSetting = settings.dark_theme_switch_on_by_default
? "disableDarkMode"
: "enableDarkMode";
const browserInDarkMode = window.matchMedia(
"(prefers-color-scheme: dark)"
);
const themes = Site._current.user_themes;
function defaultThemeId() {
let default_theme = themes.filter(theme => theme.default === true)[0];
if (default_theme.theme_id) {
return parseInt(default_theme.theme_id);
}
return -1;
}
function switchingDisabled() {
const pref = localStorage.getItem(selectedUserSetting);
if (selectedUserSetting === "disableDarkMode") {
if (pref !== null && pref === "true") {
return true;
}
return false;
} else {
if (pref !== null && pref === "true") {
return false;
}
return true;
}
}
function toggleDarkTheme(e) {
if (!currentUser) return;
const darkThemeId = parseInt(settings.dark_theme_id),
currentThemeId = themeSelector.currentThemeId();
if (
switchingDisabled() ||
!darkThemeId ||
defaultThemeId() === darkThemeId
) {
return;
}
const dark_theme = themes.filter(
theme => theme.theme_id === darkThemeId
);
if (dark_theme.length !== 1) {
return;
}
if (
browserInDarkMode.matches &&
currentThemeId !== darkThemeId &&
currentThemeId === defaultThemeId()
) {
setTheme(darkThemeId);
}
if (!browserInDarkMode.matches && currentThemeId === darkThemeId) {
setTheme(defaultThemeId());
}
}
function setTheme(themeId) {
setTimeout(function() {
// delay and visibilityState check
// needed because of a Safari iOS bug
// that triggers matchMedia listener
// while turning off screen
if (document.visibilityState !== "hidden") {
currentUser.findDetails().then(user => {
const seq = user.get("user_option.theme_key_seq");
themeSelector.setLocalTheme([themeId], seq);
showModal("dark-mode-modal");
window.location.reload();
});
}
}, 500);
}
browserInDarkMode.addListener(toggleDarkTheme);
var domReady = function(callback) {
document.readyState === "interactive" ||
document.readyState === "complete"
? callback()
: document.addEventListener("DOMContentLoaded", callback);
};
domReady(function() {
toggleDarkTheme();
});
api.modifyClass("controller:preferences/interface", {
actions: {
save() {
this._super();
if (this.get("model.username") === currentUser.get("username")) {
localStorage.setItem(
selectedUserSetting,
this.get(`model.${selectedUserSetting}`).toString()
);
}
}
}
});
});
}
};