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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";
module.metadata = {
"stability": "experimental"
};
let webExtension;
let waitForWebExtensionAPI;
module.exports = {
initFromBootstrapAddonParam(data) {
if (webExtension) {
throw new Error("'sdk/webextension' module has been already initialized");
}
webExtension = data.webExtension;
},
startup() {
if (!webExtension) {
return Promise.reject(new Error(
"'sdk/webextension' module is currently disabled. " +
"('hasEmbeddedWebExtension' option is missing or set to false)"
));
}
// NOTE: calling `startup` more than once raises an "Embedded Extension already started"
// error, but given that SDK addons are going to have access to the startup method through
// an SDK module that can be required in any part of the addon, it will be nicer if any
// additional startup calls return the startup promise instead of raising an exception,
// so that the SDK addon can access the API object in the other addon modules without the
// need to manually pass this promise around.
if (!waitForWebExtensionAPI) {
waitForWebExtensionAPI = webExtension.startup();
}
return waitForWebExtensionAPI;
}
};
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