fabric/dist/src/Observable.min.mjs

Object model for HTML5 canvas, and SVG-to-canvas parser. Backed by jsdom and node-canvas.

import{_defineProperty as e}from"../_virtual/_@oxc-project_runtime@0.122.0/helpers/defineProperty.min.mjs";var t=class{constructor(){e(this,`__eventListeners`,{})}on(e,t){if(this.__eventListeners||(this.__eventListeners={}),typeof e==`object`)return Object.entries(e).forEach(([e,t])=>{this.on(e,t)}),()=>this.off(e);if(t){let n=e;return this.__eventListeners[n]||(this.__eventListeners[n]=[]),this.__eventListeners[n].push(t),()=>this.off(n,t)}return()=>!1}once(e,t){if(typeof e==`object`){let t=[];return Object.entries(e).forEach(([e,n])=>{t.push(this.once(e,n))}),()=>t.forEach(e=>e())}if(t){let n=this.on(e,function(...e){t.call(this,...e),n()});return n}return()=>!1}_removeEventListener(e,t){if(this.__eventListeners[e])if(t){let n=this.__eventListeners[e],r=n.indexOf(t);r>-1&&n.splice(r,1)}else this.__eventListeners[e]=[]}off(e,t){if(this.__eventListeners)if(e===void 0)for(let e in this.__eventListeners)this._removeEventListener(e);else typeof e==`object`?Object.entries(e).forEach(([e,t])=>{this._removeEventListener(e,t)}):this._removeEventListener(e,t)}fire(e,t){var n;if(!this.__eventListeners)return;let r=(n=this.__eventListeners[e])==null?void 0:n.concat();if(r)for(let e=0;e<r.length;e++)r[e].call(this,t||{})}};export{t as Observable};
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