FileBrowser

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By AngryAnt. A different file browser can be found here: ImprovedFileBrowser.

Description

Implements a crude file browser in unity 2.0 GUI. This code uses the SelectList script.

Note that by crude I mean you might want to have a GUILayout pretty it up and at some point someone (me perhaps?) should pull the script around a bit so the file and directory representations in the lists aren't by complete path. Also the root check only works for unix environments at the moment. That should be an easy rewrite though.

This is how the browser could look:

FileBrowser.png

Component code

public static bool FileBrowser( ref string location, ref Vector2 directoryScroll, ref Vector2 fileScroll )
{
    bool complete;
    DirectoryInfo directoryInfo;
    DirectoryInfo directorySelection;
    FileInfo fileSelection;
    int contentWidth;
 
 
    // Our return state - altered by the "Select" button
    complete = false;
 
    // Get the directory info of the current location
    fileSelection = new FileInfo( location );
    if( (fileSelection.Attributes & FileAttributes.Directory) == FileAttributes.Directory )
    {
    	directoryInfo = new DirectoryInfo( location );
    }
    else
    {
    	directoryInfo = fileSelection.Directory;
    }
 
 
    if( location != "/" && GUI.Button( new Rect( 10, 20, 410, 20 ), "Up one level" ) )
    {
        directoryInfo = directoryInfo.Parent;
        location = directoryInfo.FullName;
    }
 
 
    // Handle the directories list
    GUILayout.BeginArea( new Rect( 10, 40, 200, 300 ) );
        GUILayout.Label( "Directories:" );
        directoryScroll = GUILayout.BeginScrollView( directoryScroll );
    	    directorySelection = BehaveLibrary.Resources.SelectList( directoryInfo.GetDirectories(), null ) as DirectoryInfo;
    	GUILayout.EndScrollView();
    GUILayout.EndArea();
 
    if( directorySelection != null )
    // If a directory was selected, jump there
    {
        location = directorySelection.FullName;
    }
 
 
    // Handle the files list
    GUILayout.BeginArea( new Rect( 220, 40, 200, 300 ) );
        GUILayout.Label( "Files:" );
        fileScroll = GUILayout.BeginScrollView( fileScroll );
        	fileSelection = BehaveLibrary.Resources.SelectList( directoryInfo.GetFiles(), null ) as FileInfo;
    	GUILayout.EndScrollView();
    GUILayout.EndArea();
 
    if( fileSelection != null )
    // If a file was selected, update our location to it
    {
        location = fileSelection.FullName;
    }
 
 
    // The manual location box and the select button
    GUILayout.BeginArea( new Rect( 10, 350, 410, 20 ) );
    GUILayout.BeginHorizontal();		
    	location = GUILayout.TextArea( location );
 
    	contentWidth = ( int )GUI.skin.GetStyle( "Button" ).CalcSize( new GUIContent( "Select" ) ).x;
    	if( GUILayout.Button( "Select", GUILayout.Width( contentWidth ) ) )
    	{
    		complete = true;
    	}
    GUILayout.EndHorizontal();
    GUILayout.EndArea();
 
 
    return complete;
}

Usage

	public void FileBrowserWindow( int idx )
	{
		if( FileBrowser( ref location, ref directoryScroll, ref fileScroll ) )
		{
			fileBrowser = false;
		}
	}
 
	public void OnGUI()
	{
		if( fileBrowser )
		{
			GUI.Window( 0, new Rect( ( Screen.width - 430 ) / 2, ( Screen.height - 380 ) / 2, 430, 380 ), FileBrowserWindow, "Browse" );
			return;
		}
	}
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