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/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set sts=2 sw=2 et tw=80: */
/* 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,
"use strict";
var { ExtensionError } = ExtensionUtils;
/**
* Represents (in the child extension process) a content script registered
* programmatically (instead of being included in the addon manifest).
*
* @param {ExtensionPageContextChild} context
* The extension context which has registered the content script.
* @param {string} scriptId
* An unique id that represents the registered content script
* (generated and used internally to identify it across the different processes).
*/
class ContentScriptChild {
constructor(context, scriptId) {
this.context = context;
this.scriptId = scriptId;
this.unregistered = false;
}
async unregister() {
if (this.unregistered) {
throw new ExtensionError("Content script already unregistered");
}
this.unregistered = true;
await this.context.childManager.callParentAsyncFunction(
"contentScripts.unregister",
[this.scriptId]
);
this.context = null;
}
api() {
const { context } = this;
// TODO(rpl): allow to read the options related to the registered content script?
return {
unregister: () => {
return context.wrapPromise(this.unregister());
},
};
}
}
this.contentScripts = class extends ExtensionAPI {
getAPI(context) {
return {
contentScripts: {
register(options) {
return context.cloneScope.Promise.resolve().then(async () => {
const scriptId = await context.childManager.callParentAsyncFunction(
"contentScripts.register",
[options]
);
const registeredScript = new ContentScriptChild(context, scriptId);
return Cu.cloneInto(registeredScript.api(), context.cloneScope, {
cloneFunctions: true,
});
});
},
},
};
}
};