fune/browser/components/shell/ScreenshotChild.jsm
Brendan Dahl 13c0b7eb66 Bug 1571419 - Make --screenshot fission compatible. r=kmag
Move capturing the window into the parent process to use the new
drawSnapshot API.

Differential Revision: https://phabricator.services.mozilla.com/D104734
2021-03-01 23:33:14 +00:00

35 lines
984 B
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const EXPORTED_SYMBOLS = ["ScreenshotChild"];
class ScreenshotChild extends JSWindowActorChild {
receiveMessage(message) {
if (message.name == "GetDimensions") {
return this.getDimensions();
}
return null;
}
async getDimensions() {
if (this.document.readyState != "complete") {
await new Promise(resolve =>
this.contentWindow.addEventListener("load", resolve, { once: true })
);
}
let { contentWindow } = this;
return {
innerWidth: contentWindow.innerWidth,
innerHeight: contentWindow.innerHeight,
scrollMinX: contentWindow.scrollMinX,
scrollMaxX: contentWindow.scrollMaxX,
scrollMinY: contentWindow.scrollMinY,
scrollMaxY: contentWindow.scrollMaxY,
};
}
}