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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
using ICSharpCode.Core;
using System;
using System.Linq;
using System.Xml;
using ICSharpCode.SharpDevelop;
using ICSharpCode.SharpDevelop.Editor;
using ICSharpCode.SharpDevelop.Gui;
namespace ICSharpCode.WorkflowDesigner
{
/// <summary>
/// Display binding that attaches the workflow designer to .xaml files.
/// </summary>
public class WorkflowDisplayBinding : ISecondaryDisplayBinding
{
public bool CanAttachTo(IViewContent content)
{
ITextEditorProvider p = content as ITextEditorProvider;
if (p != null) {
try {
using (XmlTextReader r = new XmlTextReader(p.TextEditor.Document.CreateReader())) {
r.XmlResolver = null;
// find the opening of the root element:
while (r.Read() && r.NodeType != XmlNodeType.Element);
// attach if this is a workflow node
return r.NamespaceURI == "http://schemas.microsoft.com/netfx/2009/xaml/activities";
}
} catch (XmlException e) {
LoggingService.Debug("WorkflowDisplayBinding got exception: " + e.Message);
return false;
}
} else {
return false;
}
}
/// <summary>
/// When you return true for this property, the CreateSecondaryViewContent method
/// is called again after the LoadSolutionProjects thread has finished.
/// </summary>
public bool ReattachWhenParserServiceIsReady {
get { return false; }
}
public IViewContent[] CreateSecondaryViewContent(IViewContent viewContent)
{
return new IViewContent[] { new WorkflowDesignerViewContent(viewContent.PrimaryFile) };
}
}
}
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