tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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orientation-utils.js (1455B)

      1 /**
      2 *
      3 * @param {object} options
      4 * @param {string} options.src - The iframe src
      5 * @param {Window} options.context - The browsing context in which the iframe will be created
      6 * @param {string} options.sandbox - The sandbox attribute for the iframe
      7 * @returns
      8 */
      9 export async function attachIframe(options = {}) {
     10  const { src, context, sandbox, allowFullscreen } = {
     11    ...{
     12      src: "about:blank",
     13      context: self,
     14      allowFullscreen: true,
     15      sandbox: null,
     16    },
     17    ...options,
     18  };
     19  const iframe = context.document.createElement("iframe");
     20  if (sandbox !== null) iframe.sandbox = sandbox;
     21  iframe.allowFullscreen = allowFullscreen;
     22  await new Promise((resolve) => {
     23    iframe.onload = resolve;
     24    iframe.src = src;
     25    context.document.body.appendChild(iframe);
     26  });
     27  return iframe;
     28 }
     29 
     30 export function getOppositeOrientation() {
     31  return screen.orientation.type.startsWith("portrait")
     32    ? "landscape"
     33    : "portrait";
     34 }
     35 
     36 export function makeCleanup(options = {}) {
     37  const {
     38    iframe,
     39    initialOrientation = screen.orientation?.type.split(/-/)[0]
     40  } = options;
     41 
     42  return async () => {
     43    if (iframe) {
     44      iframe.remove();
     45    }
     46 
     47    if (initialOrientation) {
     48      try {
     49        await screen.orientation.lock(initialOrientation);
     50      } catch {}
     51    }
     52    screen.orientation.unlock();
     53    requestAnimationFrame(async () => {
     54      try {
     55        await document.exitFullscreen();
     56      } catch {}
     57    });
     58  };
     59 }