asciitorium/dist/core/RenderScheduler.js

an ASCII CLUI framework

class RenderScheduler {
    constructor() {
        this.renderCallback = null;
        this.renderPending = false;
    }
    static getInstance() {
        if (!RenderScheduler.instance) {
            RenderScheduler.instance = new RenderScheduler();
        }
        return RenderScheduler.instance;
    }
    setRenderCallback(cb) {
        this.renderCallback = cb;
    }
    requestRender() {
        // If a render is already queued, don't queue another
        if (this.renderPending)
            return;
        this.renderPending = true;
        // Queue render as a microtask to batch multiple render requests
        // This ensures all synchronous state updates complete before rendering
        queueMicrotask(() => this.executeRender());
    }
    executeRender() {
        this.renderPending = false;
        this.renderCallback?.();
    }
}
// Export convenience functions that use the singleton
const scheduler = RenderScheduler.getInstance();
export function setRenderCallback(cb) {
    scheduler.setRenderCallback(cb);
}
export function requestRender() {
    scheduler.requestRender();
}