RetroZilla/extensions/inspector/resources/content/jsutil/system/DiskSearch.js
2015-10-20 23:03:22 -04:00

100 lines
3.7 KiB
JavaScript

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Joe Hewitt <hewitt@netscape.com> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/***************************************************************
* DiskSearch -------------------------------------------------
* A utility for handily searching the disk for files matching
* a certain criteria.
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* REQUIRED IMPORTS:
****************************************************************/
//////////// global variables /////////////////////
//////////// global constants ////////////////////
////////////////////////////////////////////////////////////////////////////
//// class DiskSearch
var DiskSearch =
{
findFiles: function(aRootDir, aExtList, aRecurse)
{
// has the file extensions so we don't have to
// linear search the array every time through
var extHash = {};
for (var i = 0; i < aExtList.length; i++) {
extHash[aExtList[i]] = true;
}
var ios = Components.classes["@mozilla.org/network/io-service;1"].getService(Components.interfaces.nsIIOService);
this.fileHandler = ios.getProtocolHandler("file").QueryInterface(Components.interfaces.nsIFileProtocolHandler);
// recursively build the list of results
var results = [];
this.recurseDir(aRootDir, extHash, aRecurse, results);
return results;
},
recurseDir: function(aDir, aExtHash, aRecurse, aResults)
{
debug("("+aResults.length+") entering " + aDir.path + "\n");
var entries = aDir.directoryEntries;
var entry, ext;
while (entries.hasMoreElements()) {
entry = XPCU.QI(entries.getNext(), "nsIFile");
if (aRecurse && entry.isDirectory())
this.recurseDir(entry, aExtHash, aRecurse, aResults);
ext = this.getExtension(entry.leafName);
if (ext) {
if (aExtHash[ext])
aResults.push(this.fileHandler.getURLSpecFromFile(entry));
}
}
},
getExtension: function(aFileName)
{
var dotpt = aFileName.lastIndexOf(".");
if (dotpt)
return aFileName.substr(dotpt+1).toLowerCase();
return null;
}
};