@nteract/monaco-editor/lib/polyfill/intersectionObserver.js

A React component for the monaco editor, tailored for nteract

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Polyfill for DOMRect
 */
class DOMRectPolyfill {
    constructor(x, y, width, height) {
        this.x = x;
        this.y = y;
        this.width = width;
        this.height = height;
    }
}
/**
 * Polyfill for IntersectionObserver
 * Always reports the element as intersecting when it is observed.
 */
class AlwaysIntersectingObserver {
    constructor(callback) {
        this.callback = callback;
        /**
         * The following methods are not implemented, but are required by the interface.
         */
        this.root = null;
        this.rootMargin = "";
        this.thresholds = [];
    }
    observe(element) {
        const DOMRectImpl = window.DOMRect || DOMRectPolyfill;
        // we don't want to cause a reflow if we read the DOM, so we use a dummy rect
        const dummyRect = new DOMRectImpl(0, 0, 0, 0);
        this.callback([
            {
                target: element,
                isIntersecting: true,
                intersectionRatio: 1,
                boundingClientRect: dummyRect,
                rootBounds: null,
                intersectionRect: dummyRect,
                time: performance.now()
            }
        ], this);
    }
    unobserve(element) {
        element;
    }
    disconnect() { }
    takeRecords() {
        return [];
    }
}
exports.default = AlwaysIntersectingObserver;
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