mirror of
https://github.com/BetterSEQTA/BetterSEQTA-Plus.git
synced 2026-06-06 11:44:40 +00:00
SethBurkart123
915 lines
28 KiB
TypeScript
915 lines
28 KiB
TypeScript
import localforage from "localforage";
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import type { CustomTheme, LoadedCustomTheme } from "@/types/CustomThemes";
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import { settingsState } from "@/seqta/utils/listeners/SettingsState";
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import debounce from "@/seqta/utils/debounce";
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type ThemeContent = {
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id: string;
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name: string;
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coverImage?: string; // base64, optional
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description: string;
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defaultColour?: string;
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CanChangeColour?: boolean;
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CustomCSS?: string;
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hideThemeName?: boolean;
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forceDark?: boolean;
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images: { id: string; variableName: string; data: string }[]; // data: base64
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};
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export class ThemeManager {
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private static instance: ThemeManager;
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private currentTheme: CustomTheme | null = null;
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private styleElement: HTMLStyleElement | null = null;
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private previewStyleElement: HTMLStyleElement | null = null;
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private previousImageVariableNames: string[] = [];
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private originalPreviewColor: string | null = null;
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private originalPreviewTheme: boolean | null = null;
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private imageUrlCache: Map<string, string> = new Map();
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private lastTransitionPoint: { x: number; y: number } = { x: 0, y: 0 };
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private constructor() {
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console.debug("[ThemeManager] Initializing...");
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}
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public static getInstance(): ThemeManager {
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if (!ThemeManager.instance) {
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ThemeManager.instance = new ThemeManager();
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}
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return ThemeManager.instance;
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}
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/**
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* Get the currently active theme
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*/
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public getCurrentTheme(): CustomTheme | null {
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return this.currentTheme;
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}
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/**
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* Get a theme by ID from storage
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*/
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public async getTheme(themeId: string): Promise<CustomTheme | null> {
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console.debug("[ThemeManager] Getting theme:", themeId);
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try {
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const theme = (await localforage.getItem(themeId)) as CustomTheme;
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return theme;
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} catch (error) {
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console.error("[ThemeManager] Error getting theme:", error);
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return null;
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}
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}
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/**
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* Get the ID of the currently selected theme
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*/
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public getSelectedThemeId(): string {
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return settingsState.selectedTheme;
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}
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/**
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* Update the last transition point based on a click or event
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*/
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public setTransitionPoint(x: number, y: number): void {
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this.lastTransitionPoint = { x, y };
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}
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/**
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* Apply a view transition animation
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*/
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private async applyViewTransition(callback: () => void): Promise<void> {
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if (
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!document.startViewTransition ||
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!settingsState.animations ||
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window.matchMedia("(prefers-reduced-motion: reduce)").matches
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) {
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// Just run the callback without animation if transitions not supported
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callback();
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return;
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}
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// Use last known transition point or fallback to center
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const x = this.lastTransitionPoint.x || window.innerWidth / 2;
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const y = this.lastTransitionPoint.y || window.innerHeight / 2;
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const right = window.innerWidth - x;
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const bottom = window.innerHeight - y;
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const maxRadius = Math.hypot(
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Math.max(x, right),
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Math.max(y, bottom),
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);
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await document.startViewTransition(() => {
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callback();
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}).ready;
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try {
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document.documentElement.animate(
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{
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clipPath: [
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`circle(0px at ${x}px ${y}px)`,
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`circle(${maxRadius}px at ${x}px ${y}px)`,
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],
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},
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{
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duration: 400,
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easing: 'ease-in-out',
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pseudoElement: '::view-transition-new(root)',
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}
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);
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} catch (error) {
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console.error("[ThemeManager] View Transition animation error:", error);
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}
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}
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/**
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* Disable the current theme without deleting it
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*/
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public async disableTheme(): Promise<void> {
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console.debug("[ThemeManager] Disabling current theme");
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try {
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if (!this.currentTheme) {
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console.debug("[ThemeManager] No theme to disable");
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return;
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}
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await this.removeTheme(this.currentTheme);
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this.currentTheme = null;
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settingsState.selectedTheme = "";
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console.debug("[ThemeManager] Theme disabled successfully");
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} catch (error) {
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console.error("[ThemeManager] Error disabling theme:", error);
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}
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}
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/**
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* Initialize the theme system and restore previous state
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*/
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public async initialize(): Promise<void> {
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console.debug("[ThemeManager] Starting initialization");
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try {
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const neumorphicThemeId = "9a9786d1-b5fc-4a91-8c7a-f8bf7f7679ad";
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const migrationCSS = "#title {\nbackground: transparent !important;\n}";
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const theme = (await localforage.getItem(neumorphicThemeId)) as CustomTheme | null;
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if (theme && theme.CustomCSS && !theme.CustomCSS.includes("#title {\nbackground: transparent !important;\n}")) {
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theme.CustomCSS = theme.CustomCSS + "\n" + migrationCSS;
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await localforage.setItem(neumorphicThemeId, theme);
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}
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const themeCreatorOpen = localStorage.getItem("themeCreatorOpen");
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if (themeCreatorOpen === "true") {
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console.debug(
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"[ThemeManager] Theme creator was open, clearing preview state",
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);
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this.clearPreview();
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localStorage.removeItem("themeCreatorOpen");
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}
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if (settingsState.selectedTheme) {
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console.debug(
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"[ThemeManager] Found selected theme, restoring:",
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settingsState.selectedTheme,
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);
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await this.setTheme(settingsState.selectedTheme, false);
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}
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} catch (error) {
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console.error("[ThemeManager] Error during initialization:", error);
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}
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}
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/**
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* Clean up theme system resources
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*/
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public async cleanup(): Promise<void> {
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console.debug("[ThemeManager] Cleaning up resources");
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try {
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if (this.currentTheme) {
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await this.removeTheme(this.currentTheme, false);
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}
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} catch (error) {
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console.error("[ThemeManager] Error during cleanup:", error);
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}
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}
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/**
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* Set and apply a theme by ID
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*/
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public async setTheme(themeId: string, applyViewTransition: boolean = true): Promise<void> {
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console.debug("[ThemeManager] Setting theme:", themeId);
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try {
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const theme = (await localforage.getItem(themeId)) as CustomTheme;
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if (!theme) {
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console.error("[ThemeManager] Theme not found:", themeId);
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return;
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}
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// Store original settings before applying new theme
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if (!settingsState.selectedTheme) {
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console.debug("[ThemeManager] Storing original settings");
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settingsState.originalSelectedColor = settingsState.selectedColor;
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if (theme.forceDark) {
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settingsState.originalDarkMode = settingsState.DarkMode;
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}
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}
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// Use view transition for the theme change
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if (applyViewTransition) {
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await this.applyViewTransition(async () => {
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// Remove current theme if exists
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if (this.currentTheme) {
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console.debug("[ThemeManager] Removing current theme");
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await this.removeThemeWithoutTransition(this.currentTheme);
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}
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// Apply new theme
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await this.applyTheme(theme);
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this.currentTheme = theme;
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settingsState.selectedTheme = themeId;
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});
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} else {
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// Remove current theme if exists
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if (this.currentTheme) {
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console.debug("[ThemeManager] Removing current theme");
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await this.removeThemeWithoutTransition(this.currentTheme);
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}
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// Apply new theme
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await this.applyTheme(theme);
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this.currentTheme = theme;
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settingsState.selectedTheme = themeId;
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}
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} catch (error) {
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console.error("[ThemeManager] Error setting theme:", error);
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}
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}
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/**
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* Apply theme components (CSS, images, settings)
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*/
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private async applyTheme(theme: CustomTheme): Promise<void> {
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console.debug("[ThemeManager] Applying theme:", theme.name);
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try {
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// Apply custom CSS
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if (theme.CustomCSS) {
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console.debug("[ThemeManager] Applying custom CSS");
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this.applyCustomCSS(theme.CustomCSS);
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}
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// Apply custom images
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if (theme.CustomImages) {
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console.debug("[ThemeManager] Applying custom images");
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theme.CustomImages.forEach((image) => {
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const imageUrl = URL.createObjectURL(image.blob);
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document.documentElement.style.setProperty(
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"--" + image.variableName,
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`url(${imageUrl})`,
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);
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});
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}
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// Apply theme settings
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if (theme.forceDark !== undefined) {
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console.debug("[ThemeManager] Setting dark mode:", theme.forceDark);
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settingsState.DarkMode = theme.forceDark;
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}
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// Use the stored selected color if available, otherwise use the default
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if (theme.selectedColor) {
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console.debug(
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"[ThemeManager] Restoring saved color:",
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theme.selectedColor,
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);
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settingsState.selectedColor = theme.selectedColor;
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} else if (theme.defaultColour) {
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console.debug(
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"[ThemeManager] Using default color:",
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theme.defaultColour,
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);
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settingsState.selectedColor = theme.defaultColour;
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}
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} catch (error) {
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console.error("[ThemeManager] Error applying theme:", error);
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}
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}
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/**
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* Remove theme and restore original settings with view transition
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*/
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private async removeTheme(
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theme: CustomTheme,
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clearSelectedTheme: boolean = true,
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): Promise<void> {
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console.debug("[ThemeManager] Removing theme with transition:", theme.name);
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try {
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await this.applyViewTransition(async () => {
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await this.removeThemeWithoutTransition(theme, clearSelectedTheme);
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});
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} catch (error) {
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console.error("[ThemeManager] Error removing theme with transition:", error);
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}
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}
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/**
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* Remove theme without applying view transition animation
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*/
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private async removeThemeWithoutTransition(
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theme: CustomTheme,
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clearSelectedTheme: boolean = true,
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): Promise<void> {
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console.debug("[ThemeManager] Removing theme:", theme.name);
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try {
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// Remove custom CSS
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if (this.styleElement) {
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console.debug("[ThemeManager] Removing custom CSS");
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this.styleElement.remove();
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this.styleElement = null;
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}
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// Remove custom images
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if (theme.CustomImages) {
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console.debug("[ThemeManager] Removing custom images");
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theme.CustomImages.forEach((image) => {
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const value = document.documentElement.style.getPropertyValue(
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"--" + image.variableName,
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);
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if (value) {
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URL.revokeObjectURL(value.slice(4, -1)); // Remove url() wrapper
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}
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document.documentElement.style.removeProperty(
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"--" + image.variableName,
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);
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});
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}
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if (this.currentTheme) {
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// Store the current color with the theme before removing it
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await localforage.setItem(this.currentTheme.id, {
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...this.currentTheme,
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selectedColor: settingsState.selectedColor,
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});
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}
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// Restore original settings
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if (settingsState.originalSelectedColor) {
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console.debug(
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"[ThemeManager] Restoring original color:",
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settingsState.originalSelectedColor,
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);
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settingsState.selectedColor = settingsState.originalSelectedColor;
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}
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if (settingsState.originalDarkMode !== undefined) {
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console.debug(
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"[ThemeManager] Restoring original dark mode:",
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settingsState.originalDarkMode,
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);
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settingsState.DarkMode = settingsState.originalDarkMode;
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delete settingsState.originalDarkMode;
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}
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this.currentTheme = null;
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if (clearSelectedTheme) {
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settingsState.selectedTheme = "";
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}
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} catch (error) {
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console.error("[ThemeManager] Error removing theme:", error);
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}
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}
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/**
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* Apply custom CSS to the document
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*/
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private applyCustomCSS(css: string): void {
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console.debug("[ThemeManager] Applying custom CSS");
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try {
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if (!this.styleElement) {
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this.styleElement = document.createElement("style");
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this.styleElement.id = "custom-theme";
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document.head.appendChild(this.styleElement);
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}
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this.styleElement.textContent = css;
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} catch (error) {
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console.error("[ThemeManager] Error applying custom CSS:", error);
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}
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}
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/**
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* Get list of available themes
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*/
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public async getAvailableThemes(): Promise<CustomTheme[]> {
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console.debug("[ThemeManager] Getting available themes");
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try {
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const themeIds = (await localforage.getItem("customThemes")) as
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| string[]
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| null;
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if (!themeIds) {
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return [];
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}
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const themes = await Promise.all(
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themeIds.map(async (id) => {
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return (await localforage.getItem(id)) as CustomTheme;
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}),
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);
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return themes.filter((theme) => theme !== null);
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} catch (error) {
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console.error("[ThemeManager] Error getting available themes:", error);
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return [];
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}
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}
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/**
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* Save or update a theme
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*/
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public async saveTheme(theme: LoadedCustomTheme): Promise<void> {
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console.debug("[ThemeManager] Saving theme:", theme.name);
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try {
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await localforage.setItem(theme.id, theme);
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const themeIds = (await localforage.getItem("customThemes")) as
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| string[]
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| null;
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if (themeIds) {
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if (!themeIds.includes(theme.id)) {
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themeIds.push(theme.id);
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await localforage.setItem("customThemes", themeIds);
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}
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} else {
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await localforage.setItem("customThemes", [theme.id]);
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}
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} catch (error) {
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console.error("[ThemeManager] Error saving theme:", error);
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}
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}
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/**
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* Delete a theme
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*/
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public async deleteTheme(themeId: string): Promise<void> {
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console.debug("[ThemeManager] Deleting theme:", themeId);
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try {
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const theme = (await localforage.getItem(themeId)) as CustomTheme;
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if (theme) {
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if (this.currentTheme?.id === themeId) {
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await this.removeTheme(theme);
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}
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await localforage.removeItem(themeId);
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const themeIds = (await localforage.getItem("customThemes")) as
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| string[]
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| null;
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if (themeIds) {
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const updatedThemeIds = themeIds.filter((id) => id !== themeId);
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await localforage.setItem("customThemes", updatedThemeIds);
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}
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}
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} catch (error) {
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console.error("[ThemeManager] Error deleting theme:", error);
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}
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}
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/**
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* Download and install a theme from the store
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*/
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public async downloadTheme(themeContent: {
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id: string;
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name: string;
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description: string;
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coverImage: string;
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}): Promise<void> {
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console.debug("[ThemeManager] Downloading theme:", themeContent.name);
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try {
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if (!themeContent.id) return;
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const response = await fetch(
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`https://raw.githubusercontent.com/BetterSEQTA/BetterSEQTA-Themes/main/store/themes/${themeContent.id}/theme.json`,
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);
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const themeData = (await response.json()) as ThemeContent;
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await this.installTheme(themeData);
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} catch (error) {
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console.error("[ThemeManager] Error downloading theme:", error);
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}
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}
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/**
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* Install a theme from theme data
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*/
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public async installTheme(themeData: ThemeContent): Promise<void> {
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console.debug("[ThemeManager] Installing theme:", themeData.name);
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try {
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// Validate required fields
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if (!themeData.id || !themeData.name) {
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throw new Error("Theme is missing required fields (id or name)");
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}
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// Handle cover image (optional)
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let coverImageBlob = null;
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if (themeData.coverImage) {
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try {
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const strippedCoverImage = this.stripBase64Prefix(
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themeData.coverImage,
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);
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coverImageBlob = this.base64ToBlob(strippedCoverImage);
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} catch (e) {
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console.warn("[ThemeManager] Failed to process cover image:", e);
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// Continue without cover image
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}
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}
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// Handle images (optional)
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const images =
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themeData.images
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?.map((image) => {
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try {
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if (!image.id || !image.variableName || !image.data) {
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console.warn("[ThemeManager] Skipping invalid image:", image);
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return null;
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}
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return {
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...image,
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blob: this.base64ToBlob(this.stripBase64Prefix(image.data)),
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};
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} catch (e) {
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console.warn("[ThemeManager] Failed to process image:", e);
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return null;
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}
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})
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.filter((img) => img !== null) ?? [];
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// Create theme with defaults for optional fields
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const theme: LoadedCustomTheme = {
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id: themeData.id,
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name: themeData.name,
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description: themeData.description || "",
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webURL: themeData.id,
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coverImage: coverImageBlob,
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CustomImages: images,
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CustomCSS: themeData.CustomCSS || "",
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defaultColour: themeData.defaultColour || "rgba(0, 123, 255, 1)",
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CanChangeColour: themeData.CanChangeColour ?? true,
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allowBackgrounds: true,
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isEditable: false,
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hideThemeName: themeData.hideThemeName ?? false,
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forceDark: themeData.forceDark,
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};
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await this.saveTheme(theme);
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} catch (error) {
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console.error("[ThemeManager] Error installing theme:", error);
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throw error; // Re-throw to handle in UI
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Share a theme by exporting it
|
|
*/
|
|
public async shareTheme(themeId: string): Promise<void> {
|
|
console.debug("[ThemeManager] Sharing theme:", themeId);
|
|
try {
|
|
const theme = (await localforage.getItem(themeId)) as LoadedCustomTheme;
|
|
if (!theme) {
|
|
console.error("[ThemeManager] Theme not found");
|
|
return;
|
|
}
|
|
|
|
// Extract only the fields we want to share
|
|
const {
|
|
CustomImages = [],
|
|
coverImage,
|
|
webURL,
|
|
isEditable,
|
|
selectedColor,
|
|
allowBackgrounds,
|
|
...themeBasics
|
|
} = theme;
|
|
|
|
// Convert images to base64
|
|
const finalImages = await Promise.all(
|
|
CustomImages.map(async (image) => ({
|
|
id: image.id,
|
|
variableName: image.variableName,
|
|
data: await this.blobToBase64(image.blob),
|
|
})),
|
|
);
|
|
|
|
// Convert cover image to base64
|
|
const coverImageBase64 = coverImage
|
|
? await this.blobToBase64(coverImage)
|
|
: null;
|
|
|
|
// Create shareable theme data with only necessary fields
|
|
const shareableTheme = {
|
|
...themeBasics,
|
|
images: finalImages,
|
|
coverImage: coverImageBase64,
|
|
};
|
|
|
|
// Save theme file
|
|
this.saveThemeFile(shareableTheme, theme.name || "Unnamed_Theme");
|
|
} catch (error) {
|
|
console.error("[ThemeManager] Error sharing theme:", error);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Preview a theme without applying it
|
|
*/
|
|
public async previewTheme(theme: LoadedCustomTheme): Promise<void> {
|
|
console.debug("[ThemeManager] Previewing theme:", theme.name);
|
|
try {
|
|
const { CustomCSS, CustomImages, defaultColour, forceDark } = theme;
|
|
|
|
// Store original settings only if this is a new theme
|
|
if (!theme.webURL) {
|
|
if (this.originalPreviewColor === null) {
|
|
this.originalPreviewColor = settingsState.selectedColor;
|
|
localStorage.setItem(
|
|
"originalPreviewColor",
|
|
settingsState.selectedColor,
|
|
);
|
|
}
|
|
if (this.originalPreviewTheme === null) {
|
|
this.originalPreviewTheme = settingsState.DarkMode;
|
|
}
|
|
}
|
|
|
|
// Apply custom CSS
|
|
if (CustomCSS) {
|
|
this.applyPreviewCSS(CustomCSS);
|
|
}
|
|
|
|
// Apply custom images
|
|
const newImageVariableNames = CustomImages.map(
|
|
(image) => image.variableName,
|
|
);
|
|
|
|
// Remove old preview images
|
|
this.previousImageVariableNames.forEach((variableName) => {
|
|
if (!newImageVariableNames.includes(variableName)) {
|
|
this.removeImageFromDocument(variableName);
|
|
}
|
|
});
|
|
|
|
// Apply new images
|
|
CustomImages.forEach((image) => {
|
|
const imageUrl = URL.createObjectURL(image.blob);
|
|
document.documentElement.style.setProperty(
|
|
`--${image.variableName}`,
|
|
`url(${imageUrl})`,
|
|
);
|
|
});
|
|
|
|
// Update previousImageVariableNames
|
|
this.previousImageVariableNames = newImageVariableNames;
|
|
|
|
// Apply theme settings
|
|
if (forceDark !== undefined) {
|
|
settingsState.DarkMode = forceDark;
|
|
}
|
|
|
|
if (defaultColour) {
|
|
settingsState.selectedColor = defaultColour;
|
|
}
|
|
} catch (error) {
|
|
console.error("[ThemeManager] Error previewing theme:", error);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update the preview of a theme in real-time (for theme creator)
|
|
*/
|
|
public async updatePreview(theme: Partial<LoadedCustomTheme>): Promise<void> {
|
|
console.debug("[ThemeManager] Updating theme preview");
|
|
try {
|
|
// Only store original settings if this is a new theme (not editing)
|
|
// We can tell it's a new theme if it has no webURL (which is set when a theme is saved/loaded)
|
|
if (!theme.webURL) {
|
|
if (this.originalPreviewColor === null) {
|
|
this.originalPreviewColor = settingsState.selectedColor;
|
|
}
|
|
if (this.originalPreviewTheme === null) {
|
|
this.originalPreviewTheme = settingsState.DarkMode;
|
|
}
|
|
}
|
|
|
|
// Apply CSS if changed
|
|
if (theme.CustomCSS !== undefined) {
|
|
this.applyPreviewCSS(theme.CustomCSS);
|
|
}
|
|
|
|
// Handle images if present
|
|
if (theme.CustomImages) {
|
|
const newImageVariableNames = theme.CustomImages.map(
|
|
(image) => image.variableName,
|
|
);
|
|
|
|
// Remove old preview images that are no longer present
|
|
this.previousImageVariableNames.forEach((variableName) => {
|
|
if (!newImageVariableNames.includes(variableName)) {
|
|
this.removeImageFromDocument(variableName);
|
|
// Clean up cached URL
|
|
this.imageUrlCache.delete(variableName);
|
|
}
|
|
});
|
|
|
|
// Apply or update images
|
|
theme.CustomImages.forEach((image) => {
|
|
const existingUrl = this.imageUrlCache.get(image.variableName);
|
|
if (!existingUrl) {
|
|
// Only create new URL if one doesn't exist
|
|
const imageUrl = URL.createObjectURL(image.blob);
|
|
this.imageUrlCache.set(image.variableName, imageUrl);
|
|
document.documentElement.style.setProperty(
|
|
`--${image.variableName}`,
|
|
`url(${imageUrl})`,
|
|
);
|
|
} else {
|
|
// Reuse existing URL
|
|
document.documentElement.style.setProperty(
|
|
`--${image.variableName}`,
|
|
`url(${existingUrl})`,
|
|
);
|
|
}
|
|
});
|
|
|
|
this.previousImageVariableNames = newImageVariableNames;
|
|
}
|
|
|
|
// Always apply dark mode setting
|
|
if (theme.forceDark !== undefined) {
|
|
settingsState.DarkMode = theme.forceDark;
|
|
}
|
|
|
|
// Only apply color if this is a new theme
|
|
if (!theme.webURL && theme.defaultColour) {
|
|
settingsState.selectedColor = theme.defaultColour;
|
|
}
|
|
} catch (error) {
|
|
console.error("[ThemeManager] Error updating theme preview:", error);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update the preview of a theme (debounced)
|
|
* @param theme - The theme to update the preview of
|
|
*/
|
|
public updatePreviewDebounced = debounce(
|
|
(theme: Partial<LoadedCustomTheme>): void => {
|
|
this.updatePreview(theme);
|
|
},
|
|
2,
|
|
);
|
|
|
|
/**
|
|
* Clear theme preview
|
|
*/
|
|
public clearPreview(): void {
|
|
console.debug("[ThemeManager] Clearing theme preview");
|
|
try {
|
|
// Remove preview images and revoke URLs
|
|
this.previousImageVariableNames.forEach((variableName) => {
|
|
this.removeImageFromDocument(variableName);
|
|
});
|
|
// Clear all cached URLs
|
|
this.imageUrlCache.forEach((url) => URL.revokeObjectURL(url));
|
|
this.imageUrlCache.clear();
|
|
this.previousImageVariableNames = [];
|
|
|
|
// Remove preview CSS
|
|
if (this.previewStyleElement) {
|
|
this.previewStyleElement.remove();
|
|
this.previewStyleElement = null;
|
|
}
|
|
|
|
// Restore original settings
|
|
const storedColor = localStorage.getItem("originalPreviewColor");
|
|
|
|
if (storedColor) {
|
|
settingsState.selectedColor = storedColor;
|
|
localStorage.removeItem("originalPreviewColor");
|
|
} else if (this.originalPreviewColor !== null) {
|
|
console.debug(
|
|
"[ThemeManager] Restoring color from memory:",
|
|
this.originalPreviewColor,
|
|
);
|
|
settingsState.selectedColor = this.originalPreviewColor;
|
|
console.debug(
|
|
"[ThemeManager] Color after restore:",
|
|
settingsState.selectedColor,
|
|
);
|
|
} else {
|
|
console.debug("[ThemeManager] No color to restore found");
|
|
}
|
|
this.originalPreviewColor = null;
|
|
|
|
if (this.originalPreviewTheme !== null) {
|
|
console.debug(
|
|
"[ThemeManager] Restoring dark mode:",
|
|
this.originalPreviewTheme,
|
|
);
|
|
settingsState.DarkMode = this.originalPreviewTheme;
|
|
this.originalPreviewTheme = null;
|
|
}
|
|
} catch (error) {
|
|
console.error("[ThemeManager] Error clearing preview:", error);
|
|
}
|
|
}
|
|
|
|
// Utility methods
|
|
private stripBase64Prefix(base64String: string): string {
|
|
if (!base64String) return "";
|
|
|
|
const prefixRegex = /^data:[^;]+;base64,/;
|
|
try {
|
|
return prefixRegex.test(base64String)
|
|
? base64String.replace(prefixRegex, "")
|
|
: base64String;
|
|
} catch (err) {
|
|
console.error("[ThemeManager] Error stripping base64 prefix:", err);
|
|
return "";
|
|
}
|
|
}
|
|
|
|
private base64ToBlob(base64: string): Blob {
|
|
try {
|
|
const byteString = atob(base64);
|
|
const ab = new ArrayBuffer(byteString.length);
|
|
const ia = new Uint8Array(ab);
|
|
|
|
for (let i = 0; i < byteString.length; i++) {
|
|
ia[i] = byteString.charCodeAt(i);
|
|
}
|
|
|
|
return new Blob([ab], { type: "image/png" });
|
|
} catch (err) {
|
|
console.error("[ThemeManager] Error converting base64 to blob:", err);
|
|
return new Blob();
|
|
}
|
|
}
|
|
|
|
private async blobToBase64(blob: Blob): Promise<string> {
|
|
return new Promise((resolve, reject) => {
|
|
const reader = new FileReader();
|
|
reader.onloadend = () => {
|
|
const base64String = reader.result as string;
|
|
const base64Data = base64String.split(",")[1];
|
|
resolve(base64Data);
|
|
};
|
|
reader.onerror = reject;
|
|
reader.readAsDataURL(blob);
|
|
});
|
|
}
|
|
|
|
private saveThemeFile(data: object, fileName: string): void {
|
|
try {
|
|
const fileData = JSON.stringify(data, null, 2);
|
|
const blob = new Blob([fileData], { type: "application/json" });
|
|
const url = URL.createObjectURL(blob);
|
|
const a = document.createElement("a");
|
|
a.href = url;
|
|
a.download = `${fileName}.theme.json`;
|
|
document.body.appendChild(a);
|
|
a.click();
|
|
document.body.removeChild(a);
|
|
URL.revokeObjectURL(url);
|
|
} catch (err) {
|
|
console.error("[ThemeManager] Error saving theme file:", err);
|
|
}
|
|
}
|
|
|
|
private removeImageFromDocument(variableName: string): void {
|
|
try {
|
|
const value = document.documentElement.style.getPropertyValue(
|
|
"--" + variableName,
|
|
);
|
|
if (value) {
|
|
const url = this.imageUrlCache.get(variableName);
|
|
if (url) {
|
|
URL.revokeObjectURL(url);
|
|
this.imageUrlCache.delete(variableName);
|
|
}
|
|
}
|
|
document.documentElement.style.removeProperty("--" + variableName);
|
|
} catch (err) {
|
|
console.error("[ThemeManager] Error removing image from document:", err);
|
|
}
|
|
}
|
|
|
|
private applyPreviewCSS(css: string): void {
|
|
console.debug("[ThemeManager] Applying preview CSS");
|
|
try {
|
|
if (!this.previewStyleElement) {
|
|
this.previewStyleElement = document.createElement("style");
|
|
this.previewStyleElement.id = "custom-theme-preview";
|
|
document.head.appendChild(this.previewStyleElement);
|
|
}
|
|
this.previewStyleElement.textContent = css;
|
|
} catch (error) {
|
|
console.error("[ThemeManager] Error applying preview CSS:", error);
|
|
}
|
|
}
|
|
}
|