@gravity-ui/graph/build/services/optimizations/fpsManager.js

Modern graph editor component

class FpsManager {
    constructor() {
        this.fps = 0;
        this.averageFPS = 0;
        this.history = [];
        const times = [];
        const refreshLoop = () => {
            const now = performance.now();
            while (times.length > 0 && times[0] <= now - 1000) {
                times.shift();
            }
            times.push(now);
            this.fps = times.length;
            this.history.push(this.fps);
            if (this.history.length === 11) {
                this.history.shift();
            }
            let sum = 0;
            for (let i = 0; i < this.history.length; i += 1) {
                sum += this.history[i];
            }
            this.averageFPS = Math.floor(sum / 10);
            if (typeof window === "undefined") {
                global.setTimeout(refreshLoop, 16);
            }
            else {
                window.requestAnimationFrame(refreshLoop);
            }
        };
        refreshLoop();
    }
}
export const fpsManager = new FpsManager();