зеркало из https://github.com/mozilla/gecko-dev.git
47 строки
1.6 KiB
JavaScript
47 строки
1.6 KiB
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";
|
|
|
|
// <video> is used for top-level audio documents as well
|
|
let videoElement = document.getElementsByTagName("video")[0];
|
|
|
|
// Redirect focus to the video element whenever the document receives
|
|
// focus.
|
|
document.addEventListener("focus", (e) => {
|
|
// We don't want to retarget focus if it goes to the controls in
|
|
// the video element. Because they're anonymous content, the target
|
|
// will be the video element in that case. Avoid calling .focus()
|
|
// for those events:
|
|
if (e.target == videoElement) {
|
|
return;
|
|
}
|
|
videoElement.focus();
|
|
}, true);
|
|
|
|
// Handle fullscreen mode
|
|
document.addEventListener("keypress", ev => {
|
|
// Maximize the standalone video when pressing F11,
|
|
// but ignore audio elements
|
|
if (ev.key == "F11" && videoElement.videoWidth != 0 && videoElement.videoHeight != 0) {
|
|
// If we're in browser fullscreen mode, it means the user pressed F11
|
|
// while browser chrome or another tab had focus.
|
|
// Don't break leaving that mode, so do nothing here.
|
|
if (window.fullScreen) {
|
|
return;
|
|
}
|
|
|
|
// If we're not in browser fullscreen mode, prevent entering into that,
|
|
// so we don't end up there after pressing Esc.
|
|
ev.preventDefault();
|
|
ev.stopPropagation();
|
|
|
|
if (!document.mozFullScreenElement) {
|
|
videoElement.mozRequestFullScreen();
|
|
} else {
|
|
document.mozCancelFullScreen();
|
|
}
|
|
}
|
|
});
|