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osr-discourse-src/app/assets/javascripts/discourse/lib/theme-selector.js.es6
2018-06-15 17:03:24 +02:00

103 lines
2.2 KiB
JavaScript

import { ajax } from "discourse/lib/ajax";
const keySelector = "meta[name=discourse_theme_key]";
export function currentThemeKey() {
let themeKey = null;
let elem = _.first($(keySelector));
if (elem) {
themeKey = elem.content;
if (_.isEmpty(themeKey)) {
themeKey = null;
}
}
return themeKey;
}
export function setLocalTheme(key, themeSeq) {
if (key) {
$.cookie("theme_key", `${key},${themeSeq}`, { path: "/", expires: 9999 });
} else {
$.cookie("theme_key", null, { path: "/", expires: 1 });
}
}
export function refreshCSS(node, hash, newHref, options) {
let $orig = $(node);
if ($orig.data("reloading")) {
if (options && options.force) {
clearTimeout($orig.data("timeout"));
$orig.data("copy").remove();
} else {
return;
}
}
if (!$orig.data("orig")) {
$orig.data("orig", node.href);
}
$orig.data("reloading", true);
const orig = $(node).data("orig");
let reloaded = $orig.clone(true);
if (hash) {
reloaded[0].href =
orig + (orig.indexOf("?") >= 0 ? "&hash=" : "?hash=") + hash;
} else {
reloaded[0].href = newHref;
}
$orig.after(reloaded);
let timeout = setTimeout(() => {
$orig.remove();
reloaded.data("reloading", false);
}, 2000);
$orig.data("timeout", timeout);
$orig.data("copy", reloaded);
}
export function previewTheme(key) {
if (currentThemeKey() !== key) {
Discourse.set("assetVersion", "forceRefresh");
ajax(`/themes/assets/${key ? key : "default"}`).then(results => {
let elem = _.first($(keySelector));
if (elem) {
elem.content = key;
}
results.themes.forEach(theme => {
let node = $(`link[rel=stylesheet][data-target=${theme.target}]`)[0];
if (node) {
refreshCSS(node, null, theme.url, { force: true });
}
});
});
}
}
export function listThemes(site) {
let themes = site.get("user_themes");
if (!themes) {
return null;
}
let hasDefault = !!themes.findBy("default", true);
let results = [];
if (!hasDefault) {
results.push({ name: I18n.t("themes.default_description"), id: null });
}
themes.forEach(t => {
results.push({ name: t.name, id: t.theme_key });
});
return results.length === 0 ? null : results;
}