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//
// ExpandSelectionHandler.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (c) 2011 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using ICSharpCode.NRefactory.CSharp;
using MonoDevelop.Components.Commands;
using MonoDevelop.Ide;
using System.Collections.Generic;
namespace MonoDevelop.CSharp
{
enum ExpandCommands
{
ExpandSelection,
ShrinkSelection
}
class ExpandSelectionHandler : CommandHandler
{
protected override void Run ()
{
var doc = IdeApp.Workbench.ActiveDocument;
if (doc == null)
return;
var parsedDocument = doc.ParsedDocument;
if (parsedDocument == null)
return;
var unit = parsedDocument.GetAst<SyntaxTree> ();
if (unit == null)
return;
var node = unit.GetNodeAt (doc.Editor.Caret.Location);
if (node == null)
return;
if (doc.Editor.IsSomethingSelected) {
while (node != null && doc.Editor.MainSelection.IsSelected (node.StartLocation, node.EndLocation)) {
node = node.Parent;
}
}
if (node != null)
doc.Editor.SetSelection (node.StartLocation, node.EndLocation);
}
}
class ShrinkSelectionHandler : CommandHandler
{
protected override void Run ()
{
var doc = IdeApp.Workbench.ActiveDocument;
var parsedDocument = doc.ParsedDocument;
if (parsedDocument == null)
return;
var unit = parsedDocument.GetAst<SyntaxTree> ();
if (unit == null)
return;
var node = unit.GetNodeAt (doc.Editor.Caret.Line, doc.Editor.Caret.Column);
if (node == null)
return;
var nodeStack = new Stack<AstNode> ();
nodeStack.Push (node);
if (doc.Editor.IsSomethingSelected) {
while (node != null && doc.Editor.MainSelection.IsSelected (node.StartLocation, node.EndLocation)) {
node = node.Parent;
if (node != null) {
if (nodeStack.Count > 0 && nodeStack.Peek ().StartLocation == node.StartLocation && nodeStack.Peek ().EndLocation == node.EndLocation)
nodeStack.Pop ();
nodeStack.Push (node);
}
}
}
if (nodeStack.Count > 2) {
nodeStack.Pop (); // parent
nodeStack.Pop (); // current node
node = nodeStack.Pop (); // next children in which the caret is
doc.Editor.SetSelection (node.StartLocation, node.EndLocation);
} else {
doc.Editor.ClearSelection ();
}
}
}
}
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