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Vencord/src/utils/quickCss.ts
2023-09-08 15:54:25 +01:00

105 lines
3.7 KiB
TypeScript

/*
* Vencord, a modification for Discord's desktop app
* Copyright (c) 2022 Vendicated and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { addSettingsListener, Settings } from "@api/Settings";
import { Toasts } from "@webpack/common";
import { compileUsercss } from "./themes/usercss/compiler";
let style: HTMLStyleElement;
let themesStyle: HTMLStyleElement;
export async function toggle(isEnabled: boolean) {
if (!style) {
if (isEnabled) {
style = document.createElement("style");
style.id = "vencord-custom-css";
document.documentElement.appendChild(style);
VencordNative.quickCss.addChangeListener(css => {
style.textContent = css;
// At the time of writing this, changing textContent resets the disabled state
style.disabled = !Settings.useQuickCss;
});
style.textContent = await VencordNative.quickCss.get();
}
} else
style.disabled = !isEnabled;
}
async function initThemes() {
if (!themesStyle) {
themesStyle = document.createElement("style");
themesStyle.id = "vencord-themes";
document.documentElement.appendChild(themesStyle);
}
const { themeLinks, enabledThemes, userCssVars } = Settings;
const links: string[] = [...themeLinks];
if (IS_WEB) {
// UserCSS handled separately
for (const theme of enabledThemes) if (!theme.endsWith(".user.css")) {
const themeData = await VencordNative.themes.getThemeData(theme);
if (!themeData) continue;
const blob = new Blob([themeData], { type: "text/css" });
links.push(URL.createObjectURL(blob));
}
} else {
for (const theme of enabledThemes) if (!theme.endsWith(".user.css")) {
links.push(`vencord:///themes/${theme}?v=${Date.now()}`);
}
}
for (const theme of enabledThemes) if (theme.endsWith(".user.css")) {
// UserCSS goes through a compile step first
const css = await compileUsercss(theme);
if (!css) {
// let's not leave the user in the dark about this and point them to where they can find the error
Toasts.show({
message: `Failed to compile ${theme}, check the console for more info.`,
type: Toasts.Type.FAILURE,
id: Toasts.genId(),
options: {
position: Toasts.Position.BOTTOM
}
});
continue;
}
const blob = new Blob([css], { type: "text/css" });
links.push(URL.createObjectURL(blob));
}
themesStyle.textContent = links.map(link => `@import url("${link.trim()}");`).join("\n");
}
document.addEventListener("DOMContentLoaded", () => {
initThemes();
toggle(Settings.useQuickCss);
addSettingsListener("useQuickCss", toggle);
addSettingsListener("themeLinks", initThemes);
addSettingsListener("enabledThemes", initThemes);
if (!IS_WEB)
VencordNative.quickCss.addThemeChangeListener(initThemes);
});