Shoutbox

code:

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/* File modification dates registry */
var FileModificationDates = [];
/**
* Listen for file modification
*
* @param string FilePath the file to observe
* @param function Callback function to call when the file is modified
* @return boolean
*
* @note : Callback function should take one argument which is the the path of the file
*/
function ListenForFileModification(FilePath, Callback) {
    var DateLastModified = GetFileModificationDate(FilePath);
    if (DateLastModified === false) return false;
   
    Callback = Callback || function(FilePath) {};
    FileModificationDates[FilePath] = {
        file        : FilePath,
        date        : DateLastModified,
        callback    : Callback
    }
    MsgPlus.AddTimer('LSTN_FileModification_' + FilePath, 100);
    return true;
}
/**
* Get the file modification time
*
* @param string FilePath the file
* @return string
*
* @note : returns false if file does not exist
*/
function GetFileModificationDate(FilePath) {
    var FileSystem    = new ActiveXObject('Scripting.FileSystemObject');
    if (!FileSystem.FileExists(FilePath)) return false;
    var File = FileSystem.GetFile(FilePath);
    return '' + File.DateLastModified + '';
}
/* common Timer event handler */
function OnEvent_Timer(TimerId) {
    var TimerMatchLSTN = TimerId.match(/^LSTN_FileModification_(.+)$/);
    if (TimerMatchLSTN.length && FileModificationDates[TimerMatchLSTN[1]]) {
        var FilePath = TimerMatchLSTN[1];
        var DateLastModified = GetFileModificationDate(FilePath);
        if (DateLastModified === false) return false;
       
        if (DateLastModified != FileModificationDates[FilePath].date) {
            FileModificationDates[FilePath].callback(FilePath);
            FileModificationDates[FilePath] = undefined;
            return true;
        }
        MsgPlus.AddTimer('LSTN_FileModification_' + FilePath, 100);
        return true;
    }
}
// usage example :
ListenForFileModification(MsgPlus.ScriptFilesPath + '\\file.txt', function(FilePath){Debug.Trace('File modified : ' + FilePath)});

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