DirectorySelector.java

package com.aptana.ruby.debug.ui.launcher;

import java.io.File;

import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.DirectoryDialog;

import com.aptana.core.util.StringUtil;

class DirectorySelector extends ResourceSelector
{

	public DirectorySelector(Composite parent)
	{
		super(parent);
	}

	protected void handleBrowseSelected()
	{
		DirectoryDialog dialog = new DirectoryDialog(getShell());
		dialog.setMessage(browseDialogMessage);
		String currentWorkingDir = textField.getText();
		if (!StringUtil.isEmpty(currentWorkingDir))
		{
			File path = new File(currentWorkingDir);
			if (path.exists())
			{
				dialog.setFilterPath(currentWorkingDir);
			}
		}

		String selectedDirectory = dialog.open();
		if (selectedDirectory != null)
		{
			textField.setText(selectedDirectory);
		}
	}

	protected String validateResourceSelection()
	{
		String directory = textField.getText();
		File directoryFile = new File(directory);
		if (directoryFile.exists() && directoryFile.isDirectory())
			return directory;
		return EMPTY_STRING;
	}
}