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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/. */
"use strict";
this.backgroundPage = class extends ExtensionAPI {
getAPI(context) {
function getBackgroundPage() {
for (let view of context.extension.views) {
if (
// To find the (top-level) background context, this logic relies on
// the order of views, implied by the fact that the top-level context
// is created before child contexts. If this assumption ever becomes
// invalid, add a check for view.isBackgroundContext.
view.viewType == "background" &&
context.principal.subsumes(view.principal)
) {
return view.contentWindow;
}
}
return null;
}
return {
extension: {
getBackgroundPage,
},
runtime: {
getBackgroundPage() {
return context.childManager
.callParentAsyncFunction("runtime.internalWakeupBackground", [])
.then(() => {
return context.cloneScope.Promise.resolve(getBackgroundPage());
});
},
},
};
}
};
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