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Viewing changes to src/addins/MonoDevelop.XmlEditor/MonoDevelop.XmlEditor/XmlEditorViewContent.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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src/addins/MonoDevelop.XmlEditor/MonoDevelop.XmlEditor/XmlEditorViewContent.cs
 
1
//
 
2
// MonoDevelop XML Editor
 
3
//
 
4
// Copyright (C) 2007 Matthew Ward
 
5
// Copyright (C) 2004-2007 MonoDevelop Team
 
6
//
 
7
 
 
8
using Gnome.Vfs;
 
9
using Gtk;
 
10
using GtkSourceView;
 
11
using MonoDevelop.Core;
 
12
using MonoDevelop.Ide.Gui;
 
13
using MonoDevelop.Ide.Gui.Content;
 
14
using MonoDevelop.Ide.Gui.Search;
 
15
using MonoDevelop.Projects.Text;
 
16
using System;
 
17
using System.IO;
 
18
 
 
19
namespace MonoDevelop.XmlEditor
 
20
{
 
21
        public class XmlEditorViewContent : AbstractViewContent, IEditableTextBuffer, IDocumentInformation, IClipboardHandler
 
22
        {
 
23
                XmlEditorWindow xmlEditorWindow;
 
24
                SourceBuffer buffer;
 
25
                XmlEditorView view;
 
26
                const string TextXmlMimeType = "text/xml";
 
27
                const string ApplicationXmlMimeType = "application/xml";
 
28
                string fileName = String.Empty;
 
29
                EventHandler<PropertyChangedEventArgs> propertyChangedHandler;
 
30
                string stylesheetFileName;
 
31
                
 
32
                public XmlEditorViewContent()
 
33
                {
 
34
                        xmlEditorWindow = new XmlEditorWindow(this);
 
35
                        view = xmlEditorWindow.View;
 
36
                        buffer = (SourceBuffer)view.Buffer;
 
37
                        buffer.Changed += BufferChanged;
 
38
 
 
39
                        view.SchemaCompletionDataItems = XmlSchemaManager.SchemaCompletionDataItems;
 
40
                        SetInitialValues();      
 
41
                        
 
42
                        // Watch for changes to the source editor properties.
 
43
                        propertyChangedHandler = (EventHandler<PropertyChangedEventArgs>)DispatchService.GuiDispatch(new EventHandler<PropertyChangedEventArgs>(SourceEditorPropertyChanged));
 
44
                        TextEditorProperties.Properties.PropertyChanged += propertyChangedHandler;
 
45
 
 
46
                        buffer.ModifiedChanged += new EventHandler (OnModifiedChanged);
 
47
                        XmlEditorAddInOptions.PropertyChanged += new EventHandler<PropertyChangedEventArgs>(XmlEditorPropertyChanged);
 
48
                        
 
49
                        XmlSchemaManager.UserSchemaAdded += new EventHandler(UserSchemaAdded);
 
50
                        XmlSchemaManager.UserSchemaRemoved += new EventHandler(UserSchemaRemoved);
 
51
                        
 
52
                        xmlEditorWindow.ShowAll();
 
53
                }
 
54
                
 
55
                public static bool IsMimeTypeHandled(string mimeType)
 
56
                {
 
57
                        Console.WriteLine("mimeType: " + mimeType);
 
58
                        if (mimeType != null) {
 
59
                                if (mimeType == TextXmlMimeType || mimeType == ApplicationXmlMimeType) {
 
60
                                        return true;
 
61
                                }
 
62
                        }
 
63
                        return false;
 
64
                }
 
65
                
 
66
                /// <summary>
 
67
                /// Determines whether the file can be displayed by
 
68
                /// the xml editor.
 
69
                /// </summary>
 
70
                public static bool IsFileNameHandled(string fileName)
 
71
                {                       
 
72
                        if (fileName == null) {
 
73
                                return false;
 
74
                        }
 
75
                        
 
76
                        string vfsname = fileName;
 
77
                        vfsname = vfsname.Replace ("%", "%25");
 
78
                        vfsname = vfsname.Replace ("#", "%23");
 
79
                        vfsname = vfsname.Replace ("?", "%3F");
 
80
                        string mimeType = MimeType.GetMimeTypeForUri (vfsname);
 
81
                        if (IsMimeTypeHandled(mimeType)) {
 
82
                                return true;
 
83
                        }
 
84
                        
 
85
                        return XmlFileExtensions.IsXmlFileExtension(Path.GetExtension(fileName));
 
86
                }
 
87
                
 
88
                public XmlEditorView XmlEditorView {
 
89
                        get {
 
90
                                return view;
 
91
                        }
 
92
                }
 
93
                
 
94
                public override Gtk.Widget Control {
 
95
                        get {
 
96
                                return xmlEditorWindow;
 
97
                        }
 
98
                }
 
99
                
 
100
                public override bool IsDirty {
 
101
                        get {
 
102
                                return base.IsDirty;
 
103
                        }
 
104
                        set {
 
105
                                buffer.Modified = value;
 
106
                        }
 
107
                }
 
108
                
 
109
                public override string UntitledName {
 
110
                        get {
 
111
                                return base.UntitledName;
 
112
                        }
 
113
                        set {
 
114
                                base.UntitledName = value;
 
115
                                fileName = value;
 
116
                                if (value != null) {
 
117
                                SetDefaultSchema(value);
 
118
                                }
 
119
                        }
 
120
                }
 
121
                
 
122
                public override string TabPageLabel {
 
123
                        get { 
 
124
                                return "XML";
 
125
                        }
 
126
                }
 
127
                
 
128
                public string FileName {
 
129
                        get {
 
130
                                return fileName;
 
131
                        }
 
132
                }
 
133
                
 
134
                /// <summary>
 
135
                /// Gets or sets the stylesheet associated with this xml file.
 
136
                /// </summary>
 
137
                public string StylesheetFileName {
 
138
                        get {
 
139
                                return stylesheetFileName;
 
140
                        }
 
141
                        set {
 
142
                                stylesheetFileName = value;
 
143
                        }
 
144
                }
 
145
                
 
146
                public bool IsSchema {
 
147
                        get {
 
148
                                if (fileName != null) {
 
149
                                        string extension = Path.GetExtension(fileName);
 
150
                                        if (extension != null) {
 
151
                                                return String.Compare(extension, ".xsd", true) == 0;
 
152
                                        }
 
153
                                }
 
154
                                return false;
 
155
                        }
 
156
                }
 
157
                
 
158
                public override void Load(string fileName)
 
159
                {
 
160
                        using (StreamReader reader = System.IO.File.OpenText(fileName)) {
 
161
                                LoadContent(reader.ReadToEnd());
 
162
                        }               
 
163
                        ContentName = fileName;
 
164
                        this.fileName = fileName;
 
165
                        SetDefaultSchema(ContentName);
 
166
                }
 
167
                
 
168
                public void LoadContent(string content)
 
169
                {
 
170
                        buffer.Text = content;
 
171
                        buffer.Modified = false;
 
172
                }
 
173
                
 
174
                public override void Dispose()
 
175
                {
 
176
                        XmlEditorAddInOptions.PropertyChanged -= new EventHandler<PropertyChangedEventArgs>(XmlEditorPropertyChanged);
 
177
                        XmlSchemaManager.UserSchemaAdded -= new EventHandler(UserSchemaAdded);
 
178
                        XmlSchemaManager.UserSchemaRemoved -= new EventHandler(UserSchemaRemoved);
 
179
                        TextEditorProperties.Properties.PropertyChanged -= propertyChangedHandler;
 
180
                        xmlEditorWindow.Dispose();
 
181
                }
 
182
                
 
183
                public override void Save(string fileName)
 
184
                {
 
185
                        using (TextWriter s = new StreamWriter (fileName, true)) { 
 
186
                        }
 
187
                        
 
188
                        using (TextWriter s = new StreamWriter (fileName, false)) {
 
189
                                s.Write (buffer.Text);
 
190
                        }
 
191
                        ContentName = fileName;
 
192
                        xmlEditorWindow.View.Buffer.Modified = false;
 
193
                }
 
194
                
 
195
                /// <summary>
 
196
                /// Code taken from SourceEditorDisplayBinding.
 
197
                /// </summary>
 
198
                void SetInitialValues()
 
199
                {
 
200
                        view.ShowSchemaAnnotation = XmlEditorAddInOptions.ShowSchemaAnnotation;
 
201
                        view.AutoCompleteElements = XmlEditorAddInOptions.AutoCompleteElements;
 
202
                        
 
203
                        view.ModifyFont (TextEditorProperties.Font);
 
204
                        view.ShowLineNumbers = TextEditorProperties.ShowLineNumbers;
 
205
                        ((SourceBuffer)view.Buffer).HighlightMatchingBrackets = TextEditorProperties.ShowMatchingBracket;
 
206
                        view.ShowRightMargin = TextEditorProperties.ShowVerticalRuler;
 
207
                        view.InsertSpacesInsteadOfTabs = TextEditorProperties.ConvertTabsToSpaces;
 
208
                        view.AutoIndent = (TextEditorProperties.IndentStyle == IndentStyle.Auto);
 
209
                        view.HighlightCurrentLine = TextEditorProperties.HighlightCurrentLine;
 
210
                        ((SourceBuffer)view.Buffer).HighlightSyntax = TextEditorProperties.SyntaxHighlight;
 
211
 
 
212
                        if (TextEditorProperties.TabIndent > -1)
 
213
                                view.TabWidth = (uint) TextEditorProperties.TabIndent;
 
214
                        else
 
215
                                view.TabWidth = (uint) 4;
 
216
                        
 
217
                        if (TextEditorProperties.VerticalRulerRow > -1)
 
218
                                view.RightMarginPosition = (uint) TextEditorProperties.VerticalRulerRow;
 
219
                        else
 
220
                                view.RightMarginPosition = 80;
 
221
                        
 
222
                        UpdateStyleScheme ();
 
223
                }
 
224
                
 
225
                void OnModifiedChanged (object o, EventArgs e)
 
226
                {
 
227
                        base.IsDirty = view.Buffer.Modified;
 
228
                }
 
229
                
 
230
                void UpdateStyleScheme ()
 
231
                {
 
232
                        string id = TextEditorProperties.Properties.Get<string> ("GtkSourceViewStyleScheme", "classic");
 
233
                        SourceStyleScheme scheme = GtkSourceView.SourceStyleSchemeManager.Default.GetScheme (id);
 
234
                        if (scheme == null)
 
235
                                MonoDevelop.Core.LoggingService.LogWarning ("GTKSourceView style scheme '" + id + "' is missing.");
 
236
                        else
 
237
                                ((SourceBuffer)view.Buffer).StyleScheme = scheme;
 
238
                }
 
239
                
 
240
                void XmlEditorPropertyChanged(object o, PropertyChangedEventArgs e)
 
241
                {
 
242
                        switch (e.Key) {
 
243
                                case "AutoCompleteElements":
 
244
                                        view.AutoCompleteElements = XmlEditorAddInOptions.AutoCompleteElements;
 
245
                                        break;
 
246
                                case "ShowSchemaAnnotation":
 
247
                                        view.ShowSchemaAnnotation = XmlEditorAddInOptions.ShowSchemaAnnotation;
 
248
                                        break;
 
249
                                default:
 
250
                                        string extension = Path.GetExtension(fileName).ToLower();
 
251
                                        if (e.Key == extension) {
 
252
                                                SetDefaultSchema(extension);
 
253
                                        } else {
 
254
                                                Console.WriteLine("XmlEditor: Unhandled property change: " + e.Key);
 
255
                                        }
 
256
                                        break;
 
257
                        }
 
258
                }
 
259
                
 
260
                void SourceEditorPropertyChanged(object o, PropertyChangedEventArgs e)
 
261
                {
 
262
                        switch (e.Key) {
 
263
                                case "DefaultFont":
 
264
                                        view.ModifyFont(TextEditorProperties.Font);
 
265
                                        break;
 
266
                                case "ShowLineNumbers":
 
267
                                        view.ShowLineNumbers = TextEditorProperties.ShowLineNumbers;
 
268
                                        break;
 
269
                                case "ConvertTabsToSpaces":
 
270
                                        view.InsertSpacesInsteadOfTabs = TextEditorProperties.ConvertTabsToSpaces;
 
271
                                        break;
 
272
                                case "ShowBracketHighlight":
 
273
                                        ((SourceBuffer)view.Buffer).HighlightMatchingBrackets = TextEditorProperties.ShowMatchingBracket;
 
274
                                        break;
 
275
                                case "ShowVRuler":
 
276
                                        view.ShowRightMargin = TextEditorProperties.ShowVerticalRuler;
 
277
                                        break;
 
278
                                case "VRulerRow":
 
279
                                        if (TextEditorProperties.VerticalRulerRow > -1)
 
280
                                                view.RightMarginPosition = (uint) TextEditorProperties.VerticalRulerRow;
 
281
                                        else
 
282
                                                view.RightMarginPosition = 80;
 
283
                                        break;
 
284
                                case "TabIndent":
 
285
                                        if (TextEditorProperties.TabIndent > -1)
 
286
                                                view.TabWidth = (uint) TextEditorProperties.TabIndent;
 
287
                                        else
 
288
                                                view.TabWidth = (uint) 4;
 
289
                                        break;
 
290
                                case "IndentStyle":
 
291
                                        view.AutoIndent = (TextEditorProperties.IndentStyle == IndentStyle.Auto);
 
292
                                        break;
 
293
                                case "HighlightCurrentLine":
 
294
                                        view.HighlightCurrentLine = TextEditorProperties.HighlightCurrentLine;
 
295
                                        break;
 
296
                                case "GtkSourceViewStyleScheme":
 
297
                                        UpdateStyleScheme ();
 
298
                                        break;
 
299
                                default:
 
300
                                        MonoDevelop.Core.LoggingService.LogWarning ("XmlEditor: Unhandled source editor property change: " + e.Key);
 
301
                                        break;
 
302
                        }
 
303
                }
 
304
                
 
305
                #region IClipboardHandler
 
306
                public bool EnableCut {
 
307
                        get {
 
308
                                return ((IClipboardHandler)view).EnableCut;
 
309
                        }
 
310
                }
 
311
                public bool EnableCopy {
 
312
                        get {
 
313
                                return ((IClipboardHandler)view).EnableCopy;
 
314
                        }
 
315
                }
 
316
                public bool EnablePaste {
 
317
                        get {
 
318
                                return ((IClipboardHandler)view).EnablePaste;
 
319
                        }
 
320
                }
 
321
                public bool EnableDelete {
 
322
                        get {
 
323
                                return ((IClipboardHandler)view).EnableDelete;
 
324
                        }
 
325
                }
 
326
                public bool EnableSelectAll {
 
327
                        get {
 
328
                                return ((IClipboardHandler)view).EnableSelectAll;
 
329
                        }
 
330
                }
 
331
                
 
332
                public void Cut ()
 
333
                {
 
334
                        ((IClipboardHandler)view).Cut ();
 
335
                }
 
336
                
 
337
                public void Copy ()
 
338
                {
 
339
                        ((IClipboardHandler)view).Copy ();
 
340
                }
 
341
                
 
342
                public void Paste ()
 
343
                {
 
344
                        ((IClipboardHandler)view).Paste ();
 
345
                }
 
346
                
 
347
                public void Delete ()
 
348
                {
 
349
                        ((IClipboardHandler)view).Delete ();
 
350
                }
 
351
                
 
352
                public void SelectAll ()
 
353
                {
 
354
                        ((IClipboardHandler)view).SelectAll ();
 
355
                }
 
356
                #endregion
 
357
                
 
358
                /// <summary>
 
359
        /// Sets the default schema and namespace prefix that the xml editor will use.
 
360
        /// </summary>
 
361
        void SetDefaultSchema(string fileName)
 
362
        {
 
363
                if (fileName == null) {
 
364
                        return;
 
365
                }
 
366
                string extension = Path.GetExtension(fileName).ToLower();
 
367
                view.DefaultSchemaCompletionData = XmlSchemaManager.GetSchemaCompletionData(extension);
 
368
                view.DefaultNamespacePrefix = XmlSchemaManager.GetNamespacePrefix(extension);
 
369
        }
 
370
        
 
371
        /// <summary>
 
372
        /// Updates the default schema association since the schema
 
373
        /// may have been added.
 
374
        /// </summary>
 
375
        void UserSchemaAdded(object source, EventArgs e)
 
376
        {       
 
377
                SetDefaultSchema(ContentName);
 
378
        }
 
379
        
 
380
        /// <summary>
 
381
        /// Updates the default schema association since the schema
 
382
        /// may have been removed.
 
383
        /// </summary>
 
384
        void UserSchemaRemoved(object source, EventArgs e)
 
385
        {
 
386
                SetDefaultSchema(ContentName);
 
387
        }   
 
388
        
 
389
        #region IEditableTextBuffer
 
390
        
 
391
                public event EventHandler<TextChangedEventArgs> TextChanged;
 
392
                
 
393
                public void BeginAtomicUndo ()
 
394
                {
 
395
                        //Buffer.BeginUserAction ();
 
396
                }
 
397
                
 
398
                public void EndAtomicUndo ()
 
399
                {
 
400
                        //Buffer.EndUserAction ();
 
401
                }
 
402
                
 
403
                public string Name {
 
404
                        get { 
 
405
                                return ContentName;
 
406
                        }
 
407
                }
 
408
                
 
409
                public string Text {
 
410
                        get {
 
411
//                              if (needsUpdate) {
 
412
//                                      cachedText = se.Buffer.Text;
 
413
//                              }
 
414
                                return buffer.Text;
 
415
                        }
 
416
                        set { 
 
417
                                try {
 
418
                                        buffer.BeginUserAction();
 
419
                                        buffer.Text = value;
 
420
                                } finally {
 
421
                                        buffer.EndUserAction();
 
422
                                }
 
423
                        }
 
424
                }
 
425
                
 
426
                public void Undo ()
 
427
                {
 
428
                        view.UndoChange();
 
429
                }
 
430
                
 
431
                public bool EnableUndo {
 
432
                        get { return buffer.CanUndo; }
 
433
                }
 
434
                
 
435
                public bool EnableRedo {
 
436
                        get { return buffer.CanRedo; }
 
437
                }
 
438
                
 
439
                public void Redo ()
 
440
                {
 
441
                        view.RedoChange();
 
442
                }
 
443
                
 
444
                public string SelectedText {
 
445
                        get {
 
446
                                return view.GetSelectedText();
 
447
                        }
 
448
                        set { 
 
449
                                int offset = view.GetLowerSelectionBounds ();
 
450
                                ((IClipboardHandler)view).Delete ();
 
451
                                TextIter iter = buffer.GetIterAtOffset (offset);
 
452
                                buffer.Insert (ref iter, value);
 
453
                                buffer.PlaceCursor(iter);
 
454
                                view.ScrollMarkOnscreen (buffer.InsertMark);
 
455
                        }
 
456
                }
 
457
                
 
458
                public int GetPositionFromLineColumn (int line, int column)
 
459
                {
 
460
                        Console.WriteLine("GetPositionFromLineColumn");
 
461
                        return -1;
 
462
                }
 
463
                
 
464
                public void InsertText (int position, string text)
 
465
                {
 
466
                        Console.WriteLine("InsertText");
 
467
                }
 
468
                
 
469
                public void DeleteText (int pos, int length)
 
470
                {
 
471
                        TextIter start = buffer.GetIterAtOffset (pos);
 
472
                        TextIter end = buffer.GetIterAtOffset (pos + length);
 
473
                        buffer.Delete (ref start, ref end);
 
474
                }
 
475
                                
 
476
                public int CursorPosition {
 
477
                        get { 
 
478
                                return buffer.GetIterAtMark(buffer.InsertMark).Offset;
 
479
                        }
 
480
                        set { 
 
481
                                buffer.MoveMark (buffer.InsertMark, buffer.GetIterAtOffset (value));
 
482
                        }
 
483
                }
 
484
                                
 
485
                public void GetLineColumnFromPosition (int position, out int line, out int column)
 
486
                {
 
487
                        Console.WriteLine("GetLineColumnFromPosition");
 
488
                        column = -1;
 
489
                        line = -1;
 
490
                }
 
491
                
 
492
                public void ShowPosition (int position)
 
493
                {
 
494
                        view.ScrollToIter (buffer.GetIterAtOffset (position), 0.3, false, 0, 0);
 
495
                }
 
496
                
 
497
                public char GetCharAt (int offset)
 
498
                {
 
499
                        if (offset < 0)
 
500
                                offset = 0;
 
501
                        TextIter iter = buffer.GetIterAtOffset (offset);
 
502
                        if (iter.Equals (TextIter.Zero))
 
503
                                return ' ';
 
504
                        if (iter.Char == null || iter.Char.Length == 0)
 
505
                                return ' ';
 
506
                        return iter.Char[0];
 
507
                }
 
508
                                
 
509
                public string GetText (int startPosition, int endPosition)
 
510
                {
 
511
                        return buffer.GetText (buffer.GetIterAtOffset (startPosition), buffer.GetIterAtOffset (endPosition), true);
 
512
                }
 
513
                
 
514
                int ITextFile.Length {
 
515
                        get { 
 
516
                                Console.WriteLine("ITextFile.Length");
 
517
                                return 0;
 
518
                        }
 
519
                }
 
520
                
 
521
                public void Select (int startPosition, int endPosition)
 
522
                {
 
523
                        buffer.MoveMark (buffer.InsertMark, buffer.GetIterAtOffset (startPosition));
 
524
                        buffer.MoveMark (buffer.SelectionBound, buffer.GetIterAtOffset (endPosition));
 
525
                }
 
526
                
 
527
                public int SelectionStartPosition {
 
528
                        get {
 
529
                                TextIter p1 = buffer.GetIterAtMark (buffer.InsertMark);
 
530
                                TextIter p2 = buffer.GetIterAtMark (buffer.SelectionBound);
 
531
                                if (p1.Offset < p2.Offset) return p1.Offset;
 
532
                                else return p2.Offset;
 
533
                        }
 
534
                }
 
535
                
 
536
                public int SelectionEndPosition {
 
537
                        get {
 
538
                                TextIter p1 = buffer.GetIterAtMark (buffer.InsertMark);
 
539
                                TextIter p2 = buffer.GetIterAtMark (buffer.SelectionBound);
 
540
                                if (p1.Offset > p2.Offset) return p1.Offset;
 
541
                                else return p2.Offset;
 
542
                        }
 
543
                }               
 
544
 
 
545
                #endregion
 
546
                
 
547
                #region IDocumentInformation
 
548
        
 
549
                string IDocumentInformation.FileName {
 
550
                        get { return ContentName != null ? ContentName : UntitledName; }
 
551
                }
 
552
                
 
553
                public ITextIterator GetTextIterator ()
 
554
                {
 
555
                        int startOffset = buffer.GetIterAtMark (buffer.InsertMark).Offset;
 
556
                        return new SourceViewTextIterator (this, view, startOffset);
 
557
                }
 
558
                
 
559
                public string GetLineTextAtOffset (int offset)
 
560
                {
 
561
                        TextIter resultIter = buffer.GetIterAtOffset (offset);
 
562
                        TextIter start_line = resultIter, end_line = resultIter;
 
563
                        start_line.LineOffset = 0;
 
564
                        end_line.ForwardToLineEnd ();
 
565
                        return view.GetText (start_line.Offset, end_line.Offset - start_line.Offset);
 
566
                }
 
567
 
 
568
                #endregion
 
569
                
 
570
                #region IPositionable
 
571
                
 
572
                public void SetCaretTo (int line, int column)
 
573
                {
 
574
                        // NOTE: 1 based!                       
 
575
                        TextIter itr = view.Buffer.GetIterAtLine (line - 1);
 
576
                        itr.LineOffset = column - 1;
 
577
 
 
578
                        view.Buffer.PlaceCursor (itr);  
 
579
                        view.ScrollToMark (view.Buffer.InsertMark, 0.3, false, 0, 0);
 
580
                        GLib.Timeout.Add (20, new GLib.TimeoutHandler (changeFocus));
 
581
                }
 
582
                
 
583
                protected virtual void OnCaretPositionSet (EventArgs args)
 
584
                {
 
585
                        if (CaretPositionSet != null) 
 
586
                                CaretPositionSet (this, args);
 
587
                }
 
588
                public event EventHandler CaretPositionSet;
 
589
 
 
590
                //This code exists to workaround a gtk+ 2.4 regression/bug
 
591
                //
 
592
                //The gtk+ 2.4 treeview steals focus with double clicked
 
593
                //row_activated.
 
594
                // http://bugzilla.gnome.org/show_bug.cgi?id=138458
 
595
                bool changeFocus ()
 
596
                {
 
597
                        if (!view.IsRealized)
 
598
                                return false;
 
599
                        view.GrabFocus ();
 
600
                        view.ScrollToMark (view.Buffer.InsertMark, 0.3, false, 0, 0);
 
601
                        OnCaretPositionSet (EventArgs.Empty);
 
602
                        return false;
 
603
                }
 
604
                
 
605
                #endregion
 
606
                
 
607
                void BufferChanged(object source, EventArgs e)
 
608
                {
 
609
                        if (TextChanged != null) {
 
610
                                TextChanged(this, new TextChangedEventArgs(0, 0));
 
611
                        }
 
612
                }
 
613
        }
 
614
}