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//
// OnTheFlyFormatter.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (c) 2010 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 MonoDevelop.Ide;
using System;
using System.Collections.Generic;
using MonoDevelop.Projects.Policies;
using System.Linq;
using MonoDevelop.CSharp.Completion;
using MonoDevelop.CSharp.Refactoring;
using MonoDevelop.CSharp.Parser;
using MonoDevelop.Core;
using MonoDevelop.Ide.Editor;
using Microsoft.CodeAnalysis.Formatting;
using Microsoft.CodeAnalysis.Text;
using MonoDevelop.Ide.Gui.Content;
using Microsoft.CodeAnalysis.CSharp;
namespace MonoDevelop.CSharp.Formatting
{
static class OnTheFlyFormatter
{
public static void Format (TextEditor editor, DocumentContext context)
{
Format (editor, context, 0, editor.Length);
}
// public static void Format (TextEditor editor, DocumentContext context, TextLocation location)
// {
// Format (editor, context, location, location, false);
// }
//
// public static void Format (TextEditor editor, DocumentContext context, TextLocation startLocation, TextLocation endLocation, bool exact = true)
// {
// Format (editor, context, editor.LocationToOffset (startLocation), editor.LocationToOffset (endLocation), exact);
// }
public static void Format (TextEditor editor, DocumentContext context, int startOffset, int endOffset, bool exact = true)
{
var policyParent = context.Project != null ? context.Project.Policies : PolicyService.DefaultPolicies;
var mimeTypeChain = DesktopService.GetMimeTypeInheritanceChain (CSharpFormatter.MimeType);
Format (policyParent, mimeTypeChain, editor, context, startOffset, endOffset, exact);
}
public static void FormatStatmentAt (TextEditor editor, DocumentContext context, MonoDevelop.Ide.Editor.DocumentLocation location)
{
var offset = editor.LocationToOffset (location);
var policyParent = context.Project != null ? context.Project.Policies : PolicyService.DefaultPolicies;
var mimeTypeChain = DesktopService.GetMimeTypeInheritanceChain (CSharpFormatter.MimeType);
Format (policyParent, mimeTypeChain, editor, context, offset, offset, false, true);
}
static void Format (PolicyContainer policyParent, IEnumerable<string> mimeTypeChain, TextEditor editor, DocumentContext context, int startOffset, int endOffset, bool exact, bool formatLastStatementOnly = false)
{
TextSpan span;
if (exact) {
span = new TextSpan (startOffset, endOffset - startOffset);
} else {
span = new TextSpan (0, endOffset);
}
var analysisDocument = context.AnalysisDocument;
if (analysisDocument == null)
return;
using (var undo = editor.OpenUndoGroup (/*OperationType.Format*/)) {
try {
var syntaxTree = analysisDocument.GetSyntaxTreeAsync ().Result;
if (formatLastStatementOnly) {
var root = syntaxTree.GetRoot ();
var token = root.FindToken (endOffset);
var tokens = ICSharpCode.NRefactory6.CSharp.FormattingRangeHelper.FindAppropriateRange (token);
if (tokens.HasValue) {
span = new TextSpan (tokens.Value.Item1.SpanStart, tokens.Value.Item2.Span.End - tokens.Value.Item1.SpanStart);
} else {
var parent = token.Parent;
if (parent != null)
span = parent.FullSpan;
}
}
var policy = policyParent.Get<CSharpFormattingPolicy> (mimeTypeChain);
var textPolicy = policyParent.Get<TextStylePolicy> (mimeTypeChain);
var doc = Formatter.FormatAsync (analysisDocument, span, policy.CreateOptions (textPolicy)).Result;
var newTree = doc.GetSyntaxTreeAsync ().Result;
var caretOffset = editor.CaretOffset;
foreach (var change in newTree.GetChanges (syntaxTree).OrderByDescending (c => c.Span.Start) ) {
if (!exact && change.Span.Start >= caretOffset)
continue;
var newText = change.NewText;
if (editor.EolMarker != "\r\n")
newText = newText.Replace ("\r", "");
editor.ReplaceText (change.Span.Start, change.Span.Length, newText);
}
if (editor.CaretColumn == 1)
editor.CaretColumn = editor.GetVirtualIndentationColumn (editor.CaretLine);
} catch (Exception e) {
LoggingService.LogError ("Error in on the fly formatter", e);
}
}
}
}
}
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