tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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ScreenshotChild.sys.mjs (929B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 
      5 export class ScreenshotChild extends JSWindowActorChild {
      6  receiveMessage(message) {
      7    if (message.name == "GetDimensions") {
      8      return this.getDimensions();
      9    }
     10    return null;
     11  }
     12 
     13  async getDimensions() {
     14    if (this.document.readyState != "complete") {
     15      await new Promise(resolve =>
     16        this.contentWindow.addEventListener("load", resolve, { once: true })
     17      );
     18    }
     19 
     20    let { contentWindow } = this;
     21 
     22    return {
     23      innerWidth: contentWindow.innerWidth,
     24      innerHeight: contentWindow.innerHeight,
     25      scrollMinX: contentWindow.scrollMinX,
     26      scrollMaxX: contentWindow.scrollMaxX,
     27      scrollMinY: contentWindow.scrollMinY,
     28      scrollMaxY: contentWindow.scrollMaxY,
     29    };
     30  }
     31 }