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//
// CodeFormattingCommands.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (c) 2009 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 MonoDevelop.Components.Commands;
using MonoDevelop.Ide.Gui;
using MonoDevelop.Core;
using MonoDevelop.Core.Text;
using MonoDevelop.Projects.Policies;
using System.Linq;
namespace MonoDevelop.Ide.CodeFormatting
{
public enum CodeFormattingCommands {
FormatBuffer
}
public class FormatBufferHandler : CommandHandler
{
internal static CodeFormatter GetFormatter (out Document doc)
{
doc = IdeApp.Workbench.ActiveDocument;
if (doc == null)
return null;
var editor = doc.Editor;
if (editor == null)
return null;
return CodeFormatterService.GetFormatter (editor.MimeType);
}
protected override void Update (CommandInfo info)
{
Document doc;
var formatter = GetFormatter (out doc);
info.Enabled = formatter != null;
if (formatter != null && formatter.SupportsPartialDocumentFormatting && doc.Editor.IsSomethingSelected) {
info.Text = GettextCatalog.GetString ("_Format Selection");
}
}
protected override void Run (object tool)
{
Document doc;
var formatter = GetFormatter (out doc);
if (formatter == null)
return;
var editor = doc.Editor;
if (editor.IsSomethingSelected && formatter.SupportsPartialDocumentFormatting) {
ISegment selection = editor.SelectionRange;
using (var undo = editor.OpenUndoGroup ()) {
var version = editor.Version;
if (formatter.SupportsOnTheFlyFormatting) {
formatter.OnTheFlyFormat (doc.Editor, doc, selection);
} else {
var pol = doc.Project != null ? doc.Project.Policies : null;
try {
var editorText = editor.Text;
string text = formatter.FormatText (pol, editorText, selection);
if (text != null && editorText.Substring (selection.Offset, selection.Length) != text) {
editor.ReplaceText (selection.Offset, selection.Length, text);
}
} catch (Exception e) {
LoggingService.LogError ("Error during format.", e);
}
}
int newOffset = version.MoveOffsetTo (editor.Version, selection.Offset);
int newEndOffset = version.MoveOffsetTo (editor.Version, selection.EndOffset);
editor.SetSelection (newOffset, newEndOffset);
}
return;
}
if (formatter.SupportsOnTheFlyFormatting) {
using (var undo = doc.Editor.OpenUndoGroup ()) {
formatter.OnTheFlyFormat (doc.Editor, doc, new TextSegment (0, doc.Editor.Length));
}
} else {
var text = editor.Text;
var oldOffsetWithoutWhitespaces = editor.GetTextBetween (0, editor.CaretOffset).Count (c => !char.IsWhiteSpace (c));
var policies = doc.Project != null ? doc.Project.Policies : PolicyService.DefaultPolicies;
string formattedText = formatter.FormatText (policies, text);
if (formattedText == null || formattedText == text)
return;
editor.ReplaceText (0, text.Length, formattedText);
text = editor.Text;
var currentOffsetWithoutWhitepspaces = 0;
int i = 0;
for (; i < text.Length && currentOffsetWithoutWhitepspaces < oldOffsetWithoutWhitespaces; i++) {
if (!char.IsWhiteSpace(text [i])) {
currentOffsetWithoutWhitepspaces++;
}
}
editor.SetCaretLocation (editor.OffsetToLocation (i));
}
}
}
}
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