gecko-dev/toolkit/content/aboutAbout.js

48 строки
1.5 KiB
JavaScript

/* 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/. */
const Cc = Components.classes;
const Ci = Components.interfaces;
var gProtocols = [];
var gContainer;
window.onload = function () {
gContainer = document.getElementById("abouts");
findAbouts();
}
function findAbouts() {
var ios = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
for (var cid in Cc) {
var result = cid.match(/@mozilla.org\/network\/protocol\/about;1\?what\=(.*)$/);
if (result) {
var aboutType = result[1];
var contract = "@mozilla.org/network/protocol/about;1?what=" + aboutType;
try {
var am = Cc[contract].getService(Ci.nsIAboutModule);
var uri = ios.newURI("about:"+aboutType, null, null);
var flags = am.getURIFlags(uri);
if (!(flags & Ci.nsIAboutModule.HIDE_FROM_ABOUTABOUT)) {
gProtocols.push(aboutType);
}
} catch (e) {
// getService might have thrown if the component doesn't actually
// implement nsIAboutModule
}
}
}
gProtocols.sort().forEach(createProtocolListing);
}
function createProtocolListing(aProtocol) {
var uri = "about:" + aProtocol;
var li = document.createElement("li");
var link = document.createElement("a");
var text = document.createTextNode(uri);
link.href = uri;
link.appendChild(text);
li.appendChild(link);
gContainer.appendChild(li);
}