40 lines
1.2 KiB
JavaScript
40 lines
1.2 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.backgroundPage = class extends ExtensionAPI {
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getAPI(context) {
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function getBackgroundPage() {
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for (let view of context.extension.views) {
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if (
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// To find the (top-level) background context, this logic relies on
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// the order of views, implied by the fact that the top-level context
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// is created before child contexts. If this assumption ever becomes
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// invalid, add a check for view.isBackgroundContext.
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view.viewType == "background" &&
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context.principal.subsumes(view.principal)
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) {
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return view.contentWindow;
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}
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}
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return null;
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}
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return {
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extension: {
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getBackgroundPage,
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},
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runtime: {
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getBackgroundPage() {
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return context.childManager
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.callParentAsyncFunction("runtime.internalWakeupBackground", [])
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.then(() => {
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return context.cloneScope.Promise.resolve(getBackgroundPage());
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});
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},
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},
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};
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}
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};
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