CFMU 2 quick updates

I got some good suggestions as far as additions go and thought I would throw in 2 quick ones in today. The first is being able to set a max file size in the settings file. By default the max file size is 0 and if you don't change it then its up to the flash player to set the limit. If the user tries to upload a file that is greater than the max file size (measured in bytes) they will get an alert telling them they have exceeded the limit. So once you set a file limit how do we implement it? First off we need to look at how the browse process works.

1.) User clicks browse button
2.) onBrowse Event handler method is called
3.) Create a file reference list
4.) Add a Select event listener
5.) Call the file reference list browse method

private function onBrowse(event:MouseEvent):void { _fileRef = new FileReferenceList(); _fileRef.addEventListener(Event.SELECT, onSelectFile); _fileRef.browse(_filters); }

Once the browse method is called the OS opens the open dialog box.  Once a user selects a file or files the onSelectFile method is called. Now we have to loop through a list of files, if the user only selects one file then we will only do 1 loop. For each iteration we check check to see if the max file size is 0 (default) if so we just add the file to the array collection. If its not we check to see if the size exceeds our limit. If it does we display a friendly error message letting the user know what happened.

private function onSelectFile(event:Event):void { for (var i:uint = 0; i < event.currentTarget.fileList.length; i ++){ // before we add it to the collection, check the file size restrictions if(_maxFileSize == 0) { _files.addItem(event.currentTarget.fileList[i]); } else if(event.currentTarget.fileList[i].size > _maxFileSize){ Alert.show("The file " + event.currentTarget.fileList[i].name + " exceeds the max file size of " + _maxFileSize, "File Size Error") } } }

The second update was to allow for removing of multiple files which I covered in the  last post