dropflow/dist/src/environment-browser.js

A small CSS2 document renderer built from specifications

import { environment, defaultEnvironment } from './environment.js';
if (environment.registerFont === defaultEnvironment.registerFont) {
    environment.registerFont = function (face) {
        const buffer = face.getBuffer();
        const domFace = new FontFace(face.uniqueFamily, buffer);
        document.fonts.add(domFace);
        return () => document.fonts.remove(domFace);
    };
}
if (environment.resolveUrlSync === defaultEnvironment.resolveUrlSync) {
    environment.resolveUrlSync = function (url) {
        throw new Error(`Cannot load synchronously: ${url}`);
    };
}
if (environment.resolveUrl === defaultEnvironment.resolveUrl) {
    environment.resolveUrl = async function (url) {
        const res = await fetch(url);
        if (!res.ok)
            throw new Error(res.statusText);
        return await res.arrayBuffer();
    };
}
if (environment.createDecodedImage === defaultEnvironment.createDecodedImage) {
    environment.createDecodedImage = async (image) => {
        const img = new Image();
        img.src = URL.createObjectURL(new Blob([image.buffer]));
        await img.decode();
        return img;
    };
}
if (environment.destroyDecodedImage === defaultEnvironment.destroyDecodedImage) {
    environment.destroyDecodedImage = (handle) => {
        URL.revokeObjectURL(handle.src);
    };
}
// wasm locator must be manually configured