forked from mirrors/gecko-dev
58 lines
1.6 KiB
JavaScript
58 lines
1.6 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
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export class AboutMessagePreviewChild extends JSWindowActorChild {
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handleEvent(event) {
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console.log(`Received page event ${event.type}`);
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}
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actorCreated() {
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this.exportFunctions();
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}
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exportFunctions() {
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if (this.contentWindow) {
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for (const name of ["MPShowMessage", "MPIsEnabled", "MPShouldShowHint"]) {
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Cu.exportFunction(this[name].bind(this), this.contentWindow, {
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defineAs: name,
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});
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}
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}
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}
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/**
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* Check if the Message Preview feature is enabled. This reflects the value of
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* the pref `browser.newtabpage.activity-stream.asrouter.devtoolsEnabled`.
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*
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* @returns {boolean}
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*/
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MPIsEnabled() {
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return Services.prefs.getBoolPref(
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"browser.newtabpage.activity-stream.asrouter.devtoolsEnabled",
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false
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);
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}
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/**
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* Route a message to the parent process to be displayed with the relevant
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* messaging surface.
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*
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* @param {object} message
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*/
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MPShowMessage(message) {
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this.sendAsyncMessage(`MessagePreview:SHOW_MESSAGE`, message);
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}
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/**
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* Check if a hint should be shown about how to enable Message Preview. The
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* hint is only displayed in local/unofficial builds.
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*
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* @returns {boolean}
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*/
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MPShouldShowHint() {
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return !this.MPIsEnabled() && !AppConstants.MOZILLA_OFFICIAL;
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}
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}
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