activecontentextensionevaluator.cs

SharpDevelop2.0.0 c#开发免费工具

// <file>
//     <copyright see="prj:///doc/copyright.txt"/>
//     <license see="prj:///doc/license.txt"/>
//     <owner name="Mike Krüger" email="[e-mail]"/>
//     <version>$Revision: 915 $</version>
// </file>

using System;
using System.IO;
using System.Xml;

using ICSharpCode.SharpDevelop.Gui;

namespace ICSharpCode.Core
{
	/// <summary>
	/// Tests the file extension of the file edited in the active window content.
	/// </summary>
	/// <attribute name="activeextension">
	/// The file extension the file should have.
	/// </attribute>
	/// <example title="Test if a C# file is being edited">
	/// &lt;Condition name = "ActiveContentExtension" activeextension=".cs"&gt;
	/// </example>
	public class ActiveContentExtensionConditionEvaluator : IConditionEvaluator
	{
		public bool IsValid(object caller, Condition condition)
		{
			if (WorkbenchSingleton.Workbench == null || WorkbenchSingleton.Workbench.ActiveWorkbenchWindow == null || WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent == null) {
				return false;
			}
			try {
				string name = WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent.IsUntitled ?
					WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent.UntitledName : WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent.FileName;
				
				if (name == null) {
					return false;
				}
				
				string extension = Path.GetExtension(name);
				return extension.ToUpperInvariant() == condition.Properties["activeextension"].ToUpperInvariant();
			} catch (Exception) {
				return false;
			}
		}
	}
}