5dbcebf7a2
- Fix router import path in main.js - Handle Django REST Framework pagination format in API calls - Add getTemplates function to project API - Restart frontend development server
63 lines
1.9 KiB
TypeScript
63 lines
1.9 KiB
TypeScript
import { FabricError } from './util/internals/console';
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/*
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* This Map connects the objects type value with their
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* class implementation. It used from any object to understand which are
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* the classes to enlive when requesting a object.type = 'path' for example.
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* Objects uses it for clipPath, Canvas uses it for everything.
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* This is necessary for generic code to run and enlive instances from serialized representation.
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* You can customize which classes get enlived from SVG parsing using this classRegistry.
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* The Registry start empty and gets filled in depending which files you import.
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* If you want to be able to parse arbitrary SVGs or JSON representation of canvases, coming from
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* different sources you will need to import all fabric because you may need all classes.
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*/
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export const JSON = 'json';
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export const SVG = 'svg';
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export class ClassRegistry {
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declare [JSON]: Map<string, any>;
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declare [SVG]: Map<string, any>;
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constructor() {
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this[JSON] = new Map();
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this[SVG] = new Map();
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}
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has(classType: string): boolean {
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return this[JSON].has(classType);
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}
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getClass<T>(classType: string): T {
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const constructor = this[JSON].get(classType);
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if (!constructor) {
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throw new FabricError(`No class registered for ${classType}`);
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}
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return constructor;
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}
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setClass(classConstructor: any, classType?: string) {
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if (classType) {
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this[JSON].set(classType, classConstructor);
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} else {
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this[JSON].set(classConstructor.type, classConstructor);
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// legacy
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// @TODO: needs to be removed in fabric 7 or 8
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this[JSON].set(classConstructor.type.toLowerCase(), classConstructor);
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}
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}
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getSVGClass(SVGTagName: string): any {
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return this[SVG].get(SVGTagName);
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}
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setSVGClass(classConstructor: any, SVGTagName?: string) {
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this[SVG].set(
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SVGTagName ?? classConstructor.type.toLowerCase(),
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classConstructor,
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);
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}
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}
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export const classRegistry = new ClassRegistry();
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