fileBrowser plugin overwrites any onClick function for a fileButton element

[alfonsoml]

The fileBrowser plugin applies its own "fileUpload" function to the onClick handler of the fileButtons, without any regards to any such handler specified in the definition of the object.

Unfortunately, the big anonymous function makes quite hard to workaround this or other improvements from a plugin.

The solution here is to change

if ( url )
{					
	element.onClick = uploadFile ;
	element.filebrowser.url = url;
...

to a wrapper that includes the previous handler:

if ( url )
{					
	var onClick = element.onClick;
	element.onClick = function( evt )
	{
		// "element" here means the definition object, so we need to find the correct
		// button to scope the event call
		var sender = evt.sender
		if ( onClick && onClick.call( sender, evt ) === false )
			return false;
		return uploadFile.call( sender, evt );
	};

	element.filebrowser.url = url;
...

[alfonsoml]

Proposed patch

[garry.yao]

Please compensate the missing semicolon after L286 before commit.

[alfonsoml]

Thanks for the tip
Fixed with [4923]