gecko-dev/webapprt/DirectoryProvider.js

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1.7 KiB
JavaScript
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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/. */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
const WEBAPP_REGISTRY_DIR = "WebappRegD";
const NS_APP_CHROME_DIR_LIST = "AChromDL";
Cu.import("resource://gre/modules/FileUtils.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://webapprt/modules/WebappRT.jsm");
function DirectoryProvider() {}
DirectoryProvider.prototype = {
classID: Components.ID("{e1799fda-4b2f-4457-b671-e0641d95698d}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIDirectoryServiceProvider,
Ci.nsIDirectoryServiceProvider2]),
getFile: function(prop, persistent) {
if (prop == WEBAPP_REGISTRY_DIR) {
let dir = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
dir.initWithPath(WebappRT.config.registryDir);
return dir;
}
// We return null to show failure instead of throwing an error,
// which works with the way the interface is called (per bug 529077).
return null;
},
getFiles: function(prop, persistent) {
if (prop == NS_APP_CHROME_DIR_LIST) {
return {
_done: false,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISimpleEnumerator]),
hasMoreElements: function() {
return !this._done;
},
getNext: function() {
this._done = true;
return FileUtils.getDir("AppRegD", ["chrome"], false);
}
};
}
return null;
},
};
const NSGetFactory = XPCOMUtils.generateNSGetFactory([DirectoryProvider]);