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/* 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/. */
import { GeckoViewActorChild } from "resource://gre/modules/GeckoViewActorChild.sys.mjs";
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
MediaUtils: "resource://gre/modules/MediaUtils.sys.mjs",
setTimeout: "resource://gre/modules/Timer.sys.mjs",
});
export class MediaControlDelegateChild extends GeckoViewActorChild {
handleEvent(aEvent) {
debug`handleEvent: ${aEvent.type}`;
switch (aEvent.type) {
case "MozDOMFullscreen:Entered":
case "MozDOMFullscreen:Exited":
this.handleFullscreenChanged(true);
break;
}
}
async handleFullscreenChanged(retry) {
debug`handleFullscreenChanged`;
const element = this.document.fullscreenElement;
const mediaElement = lazy.MediaUtils.findMediaElement(element);
if (element && !mediaElement) {
// Non-media element fullscreen.
debug`No fullscreen media element found.`;
}
const activated = await this.eventDispatcher.sendRequestForResult({
type: "GeckoView:MediaSession:Fullscreen",
metadata: lazy.MediaUtils.getMetadata(mediaElement) ?? {},
enabled: !!element,
});
if (activated) {
return;
}
if (retry && element) {
// When media session is going to active, we have a race condition of
// full screen event because media session will be activated by full
// screen event.
// So we retry to call media session delegate for this situation.
lazy.setTimeout(() => {
this.handleFullscreenChanged(false);
}, 100);
}
}
}
const { debug } = MediaControlDelegateChild.initLogging(
"MediaControlDelegateChild"
);
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