playwright-fluent/lib/actions/handle-actions/get-intersection-ratio-of-handle/get-intersection-ratio-of-handle.js

Fluent API around playwright

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getIntersectionRatioOfHandle = void 0;
async function getIntersectionRatioOfHandle(selector) {
    if (!selector) {
        return -1;
    }
    // this code was taken from Playwright visibleRatio()
    // that has been been removed from src/dom.ts:482 (version 0.11.1)
    const result = await selector.evaluate(async (el) => {
        const visibleRatio = await new Promise((resolve) => {
            const observer = new IntersectionObserver((entries) => {
                resolve(entries[0].intersectionRatio);
                observer.disconnect();
            });
            observer.observe(el);
            // Firefox doesn't call IntersectionObserver callback unless
            // there are rafs.
            // eslint-disable-next-line @typescript-eslint/no-empty-function
            requestAnimationFrame(() => { });
        });
        return visibleRatio;
    });
    return result;
}
exports.getIntersectionRatioOfHandle = getIntersectionRatioOfHandle;