Add context menu entries for folding

ILSpy/ILSpy.csproj

@@ -177,6 +177,7 @@
       <SubType>Code</SubType>
     </Compile>
     <Compile Include="Commands\SimpleCommand.cs" />
+    <Compile Include="TextView\FoldingCommands.cs" />
     <Compile Include="TreeNodes\Analyzer\AnalyzeContextMenuEntry.cs" />
     <Compile Include="TreeNodes\Analyzer\AnalyzedAssemblyTreeNode.cs" />
     <Compile Include="TreeNodes\Analyzer\AnalyzedAttributeAppliedToTreeNode.cs" />

ILSpy/TextView/DecompilerTextView.cs

@@ -769,6 +769,12 @@ namespace ICSharpCode.ILSpy.TextView
 			int offset = textEditor.Document.GetOffset(position.Value.Location);
 			return referenceElementGenerator.References.FindSegmentsContaining(offset).FirstOrDefault();
 		}
+		
+		public int CurrentOffset {
+			get {
+				return textEditor.CaretOffset;
+			}
+		}
 
 		public DecompilerTextViewState GetState()
 		{
@@ -809,6 +815,13 @@ namespace ICSharpCode.ILSpy.TextView
 			// scroll to
 			textEditor.ScrollTo(lineNumber, 0);
 		}
+		
+		public FoldingManager FoldingManager
+		{
+			get {
+				return foldingManager;
+			}
+		}
 		#endregion
 	}
 

ILSpy/TextView/FoldingCommands.cs

@@ -0,0 +1,82 @@
+/*
+ * Created by SharpDevelop.
+ * User: Ronny Klier
+ * Date: 24.05.2012
+ * Time: 23:44
+ * 
+ * To change this template use Tools | Options | Coding | Edit Standard Headers.
+ */
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+using ICSharpCode.AvalonEdit.Folding;
+
+namespace ICSharpCode.ILSpy.TextView
+{
+  [ExportContextMenuEntryAttribute(Header = "Toggle All Folding", Category = "Folding")]
+  internal sealed class ToggleAllContextMenuEntry : IContextMenuEntry
+  {
+    public bool IsVisible(TextViewContext context)
+    {
+      return context.TextView != null;				
+    }
+    
+    public bool IsEnabled(TextViewContext context)
+    {
+      return context.TextView != null && context.TextView.FoldingManager != null;
+    }
+    
+    public void Execute(TextViewContext context)
+    {
+      if (null == context.TextView)
+        return;
+      FoldingManager foldingManager = context.TextView.FoldingManager;
+      if (null == foldingManager)
+        return;
+        bool doFold = true;
+        foreach (FoldingSection fm in foldingManager.AllFoldings) {
+          if (fm.IsFolded) {
+            doFold = false;
+            break;
+          }
+        }
+        foreach (FoldingSection fm in foldingManager.AllFoldings) {
+          fm.IsFolded = doFold;
+        }
+    }
+  }
+
+  [ExportContextMenuEntryAttribute(Header = "Toggle Folding", Category = "Folding")]
+  internal sealed class ToggleContextMenuEntry : IContextMenuEntry
+  {
+    public bool IsVisible(TextViewContext context)
+    {
+      return context.TextView != null;				
+    }
+    
+    public bool IsEnabled(TextViewContext context)
+    {
+      return context.TextView != null && context.TextView.FoldingManager != null;
+    }
+    
+    public void Execute(TextViewContext context)
+    {
+      if (null == context.TextView)
+        return;
+      FoldingManager foldingManager = context.TextView.FoldingManager;
+      if (null == foldingManager)
+        return;
+      int offset = context.TextView.CurrentOffset;
+      FoldingSection folding = foldingManager.GetNextFolding(offset);
+      if (folding == null || folding.StartOffset != offset) {
+        // no folding found on current line: find innermost folding containing the caret
+        folding = foldingManager.GetFoldingsContaining(offset).LastOrDefault();
+      }
+      if (folding != null) {
+        folding.IsFolded = !folding.IsFolded;
+      }
+    }
+  }
+  
+}