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Diffstat (limited to 'main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/TextEditor.cs')
| -rw-r--r-- | main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/TextEditor.cs | 1260 |
1 files changed, 1260 insertions, 0 deletions
diff --git a/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/TextEditor.cs b/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/TextEditor.cs new file mode 100644 index 0000000000..444f64fd04 --- /dev/null +++ b/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/TextEditor.cs @@ -0,0 +1,1260 @@ +// +// ITextEditor.cs +// +// Author: +// Mike Krüger <mkrueger@xamarin.com> +// +// Copyright (c) 2014 Xamarin Inc. (http://xamarin.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.Core.Text; +using System.Collections.Generic; +using System.Text; +using MonoDevelop.Ide.Gui; +using MonoDevelop.Ide.Editor.Extension; +using System.IO; +using MonoDevelop.Ide.Editor.Highlighting; +using Mono.Addins; +using MonoDevelop.Core; +using MonoDevelop.Ide.Extensions; +using System.Linq; +using MonoDevelop.Components; +using System.ComponentModel; +using MonoDevelop.Ide.TypeSystem; +using System.Threading; +using MonoDevelop.Ide.Editor.Projection; + +namespace MonoDevelop.Ide.Editor +{ + public sealed class TextEditor : Control, ITextDocument, IDisposable + { + readonly ITextEditorImpl textEditorImpl; + IReadonlyTextDocument ReadOnlyTextDocument { get { return textEditorImpl.Document; } } + ITextDocument ReadWriteTextDocument { get { return (ITextDocument)textEditorImpl.Document; } } + + public ITextSourceVersion Version { + get { + return ReadOnlyTextDocument.Version; + } + } + + FileTypeCondition fileTypeCondition = new FileTypeCondition (); + + List<TooltipExtensionNode> allProviders = new List<TooltipExtensionNode> (); + + void OnTooltipProviderChanged (object s, ExtensionNodeEventArgs a) + { + TooltipProvider provider; + try { + var extensionNode = a.ExtensionNode as TooltipExtensionNode; + allProviders.Add (extensionNode); + if (extensionNode.IsValidFor (MimeType)) + return; + provider = (TooltipProvider) extensionNode.CreateInstance (); + } catch (Exception e) { + LoggingService.LogError ("Can't create tooltip provider:"+ a.ExtensionNode, e); + return; + } + if (a.Change == ExtensionChange.Add) { + textEditorImpl.AddTooltipProvider (provider); + } else { + textEditorImpl.RemoveTooltipProvider (provider); + } + } + + public event EventHandler SelectionChanged { + add { textEditorImpl.SelectionChanged += value; } + remove { textEditorImpl.SelectionChanged -= value; } + } + + public event EventHandler CaretPositionChanged { + add { textEditorImpl.CaretPositionChanged += value; } + remove { textEditorImpl.CaretPositionChanged -= value; } + } + + public event EventHandler BeginAtomicUndoOperation { + add { textEditorImpl.BeginAtomicUndoOperation += value; } + remove { textEditorImpl.BeginAtomicUndoOperation -= value; } + } + + public event EventHandler EndAtomicUndoOperation { + add { textEditorImpl.EndAtomicUndoOperation += value; } + remove { textEditorImpl.EndAtomicUndoOperation -= value; } + } + + public event EventHandler<TextChangeEventArgs> TextChanging { + add { ReadWriteTextDocument.TextChanging += value; } + remove { ReadWriteTextDocument.TextChanging -= value; } + } + + public event EventHandler<TextChangeEventArgs> TextChanged { + add { ReadWriteTextDocument.TextChanged += value; } + remove { ReadWriteTextDocument.TextChanged -= value; } + } + + public event EventHandler BeginMouseHover { + add { textEditorImpl.BeginMouseHover += value; } + remove { textEditorImpl.BeginMouseHover -= value; } + } + + public event EventHandler VAdjustmentChanged { + add { textEditorImpl.VAdjustmentChanged += value; } + remove { textEditorImpl.VAdjustmentChanged -= value; } + } + + public event EventHandler HAdjustmentChanged { + add { textEditorImpl.HAdjustmentChanged += value; } + remove { textEditorImpl.HAdjustmentChanged -= value; } + } + public char this[int offset] { + get { + return ReadOnlyTextDocument [offset]; + } + set { + ReadWriteTextDocument [offset] = value; + } + } + +// public event EventHandler<LineEventArgs> LineChanged { +// add { textEditorImpl.LineChanged += value; } +// remove { textEditorImpl.LineChanged -= value; } +// } +// +// public event EventHandler<LineEventArgs> LineInserted { +// add { textEditorImpl.LineInserted += value; } +// remove { textEditorImpl.LineInserted -= value; } +// } +// +// public event EventHandler<LineEventArgs> LineRemoved { +// add { textEditorImpl.LineRemoved += value; } +// remove { textEditorImpl.LineRemoved -= value; } +// } + + public ITextEditorOptions Options { + get { + return textEditorImpl.Options; + } + set { + textEditorImpl.Options = value; + OnOptionsChanged (EventArgs.Empty); + } + } + + public event EventHandler OptionsChanged; + + void OnOptionsChanged (EventArgs e) + { + var handler = OptionsChanged; + if (handler != null) + handler (this, e); + } + + public EditMode EditMode { + get { + return textEditorImpl.EditMode; + } + } + + public DocumentLocation CaretLocation { + get { + return textEditorImpl.CaretLocation; + } + set { + textEditorImpl.CaretLocation = value; + } + } + + public SemanticHighlighting SemanticHighlighting { + get { + return textEditorImpl.SemanticHighlighting; + } + set { + textEditorImpl.SemanticHighlighting = value; + } + } + + public int CaretLine { + get { + return CaretLocation.Line; + } + set { + CaretLocation = new DocumentLocation (value, CaretColumn); + } + } + + public int CaretColumn { + get { + return CaretLocation.Column; + } + set { + CaretLocation = new DocumentLocation (CaretLine, value); + } + } + + public int CaretOffset { + get { + return textEditorImpl.CaretOffset; + } + set { + textEditorImpl.CaretOffset = value; + } + } + + public bool IsReadOnly { + get { + return ReadOnlyTextDocument.IsReadOnly; + } + set { + ReadWriteTextDocument.IsReadOnly = value; + } + } + + public bool IsSomethingSelected { + get { + return textEditorImpl.IsSomethingSelected; + } + } + + public SelectionMode SelectionMode { + get { + return textEditorImpl.SelectionMode; + } + } + + public ISegment SelectionRange { + get { + return textEditorImpl.SelectionRange; + } + set { + textEditorImpl.SelectionRange = value; + } + } + + public DocumentRegion SelectionRegion { + get { + return textEditorImpl.SelectionRegion; + } + set { + textEditorImpl.SelectionRegion = value; + } + } + + public int SelectionAnchorOffset { + get { + return textEditorImpl.SelectionAnchorOffset; + } + set { + textEditorImpl.SelectionAnchorOffset = value; + } + } + + public int SelectionLeadOffset { + get { + return textEditorImpl.SelectionLeadOffset; + } + set { + textEditorImpl.SelectionLeadOffset = value; + } + } + + public string SelectedText { + get { + return IsSomethingSelected ? ReadOnlyTextDocument.GetTextAt (SelectionRange) : null; + } + set { + var selection = SelectionRange; + ReplaceText (selection, value); + SelectionRange = new TextSegment (selection.Offset, value.Length); + } + } + + public bool IsInAtomicUndo { + get { + return ReadWriteTextDocument.IsInAtomicUndo; + } + } + + public double LineHeight { + get { + return textEditorImpl.LineHeight; + } + } + + /// <summary> + /// Gets or sets the type of the MIME. + /// </summary> + /// <value>The type of the MIME.</value> + public string MimeType { + get { + return ReadOnlyTextDocument.MimeType; + } + set { + ReadWriteTextDocument.MimeType = value; + } + } + + public event EventHandler MimeTypeChanged { + add { ReadWriteTextDocument.MimeTypeChanged += value; } + remove { ReadWriteTextDocument.MimeTypeChanged -= value; } + } + + public string Text { + get { + return ReadOnlyTextDocument.Text; + } + set { + ReadWriteTextDocument.Text = value; + } + } + + /// <summary> + /// Gets the eol marker. On a text editor always use that and not GetEolMarker. + /// The EOL marker of the document may get overwritten my the one from the options. + /// </summary> + public string EolMarker { + get { + if (Options.OverrideDocumentEolMarker) + return Options.DefaultEolMarker; + return ReadOnlyTextDocument.GetEolMarker (); + } + } + + public bool UseBOM { + get { + return ReadOnlyTextDocument.UseBOM; + } + set { + ReadWriteTextDocument.UseBOM = value; + } + } + + public Encoding Encoding { + get { + return ReadOnlyTextDocument.Encoding; + } + set { + ReadWriteTextDocument.Encoding = value; + } + } + + public int LineCount { + get { + return ReadOnlyTextDocument.LineCount; + } + } + + /// <summary> + /// Gets the name of the file the document is stored in. + /// Could also be a non-existent dummy file name or null if no name has been set. + /// </summary> + public FilePath FileName { + get { + return ReadOnlyTextDocument.FileName; + } + set { + ReadWriteTextDocument.FileName = value; + } + } + + public event EventHandler FileNameChanged { + add { + ReadWriteTextDocument.FileNameChanged += value; + } + remove { + ReadWriteTextDocument.FileNameChanged -= value; + } + } + + public int Length { + get { + return ReadOnlyTextDocument.Length; + } + } + + public double ZoomLevel { + get { + return textEditorImpl.ZoomLevel; + } + set { + textEditorImpl.ZoomLevel = value; + } + } + + public event EventHandler ZoomLevelChanged { + add { + textEditorImpl.ZoomLevelChanged += value; + } + remove { + textEditorImpl.ZoomLevelChanged -= value; + } + } + + public IDisposable OpenUndoGroup () + { + return ReadWriteTextDocument.OpenUndoGroup (); + } + + public void SetSelection (int anchorOffset, int leadOffset) + { + textEditorImpl.SetSelection (anchorOffset, leadOffset); + } + + public void SetSelection (DocumentLocation anchor, DocumentLocation lead) + { + SetSelection (LocationToOffset (anchor), LocationToOffset (lead)); + } + + public void SetCaretLocation (DocumentLocation location, bool usePulseAnimation = false) + { + CaretLocation = location; + ScrollTo (CaretLocation); + if (usePulseAnimation) + StartCaretPulseAnimation (); + } + + public void SetCaretLocation (int line, int col, bool usePulseAnimation = false) + { + CaretLocation = new DocumentLocation (line, col); + CenterTo (CaretLocation); + if (usePulseAnimation) + StartCaretPulseAnimation (); + } + + public void ClearSelection () + { + textEditorImpl.ClearSelection (); + } + + public void CenterToCaret () + { + textEditorImpl.CenterToCaret (); + } + + public void StartCaretPulseAnimation () + { + textEditorImpl.StartCaretPulseAnimation (); + } + + public int EnsureCaretIsNotVirtual () + { + return textEditorImpl.EnsureCaretIsNotVirtual (); + } + + public void FixVirtualIndentation () + { + textEditorImpl.FixVirtualIndentation (); + } + + public void RunWhenLoaded (Action action) + { + if (action == null) + throw new ArgumentNullException ("action"); + textEditorImpl.RunWhenLoaded (action); + } + + public string FormatString (DocumentLocation insertPosition, string code) + { + return textEditorImpl.FormatString (LocationToOffset (insertPosition), code); + } + + public string FormatString (int offset, string code) + { + return textEditorImpl.FormatString (offset, code); + } + + public void StartInsertionMode (InsertionModeOptions insertionModeOptions) + { + if (insertionModeOptions == null) + throw new ArgumentNullException ("insertionModeOptions"); + textEditorImpl.StartInsertionMode (insertionModeOptions); + } + + public void StartTextLinkMode (TextLinkModeOptions textLinkModeOptions) + { + if (textLinkModeOptions == null) + throw new ArgumentNullException ("textLinkModeOptions"); + textEditorImpl.StartTextLinkMode (textLinkModeOptions); + } + + public void InsertAtCaret (string text) + { + InsertText (CaretOffset, text); + } + + public DocumentLocation PointToLocation (double xp, double yp, bool endAtEol = false) + { + return textEditorImpl.PointToLocation (xp, yp, endAtEol); + } + + public Xwt.Point LocationToPoint (DocumentLocation location) + { + return textEditorImpl.LocationToPoint (location.Line, location.Column); + } + + public Xwt.Point LocationToPoint (int line, int column) + { + return textEditorImpl.LocationToPoint (line, column); + } + + public string GetLineText (int line, bool includeDelimiter = false) + { + var segment = GetLine (line); + return GetTextAt (includeDelimiter ? segment.SegmentIncludingDelimiter : segment); + } + + public int LocationToOffset (int line, int column) + { + return ReadOnlyTextDocument.LocationToOffset (new DocumentLocation (line, column)); + } + + public int LocationToOffset (DocumentLocation location) + { + return ReadOnlyTextDocument.LocationToOffset (location); + } + + public DocumentLocation OffsetToLocation (int offset) + { + return ReadOnlyTextDocument.OffsetToLocation (offset); + } + + public void InsertText (int offset, string text) + { + ReadWriteTextDocument.InsertText (offset, text); + } + + public void InsertText (int offset, ITextSource text) + { + ReadWriteTextDocument.InsertText (offset, text); + } + + public void RemoveText (int offset, int count) + { + RemoveText (new TextSegment (offset, count)); + } + + public void RemoveText (ISegment segment) + { + if (segment == null) + throw new ArgumentNullException ("segment"); + ReadWriteTextDocument.RemoveText (segment); + } + + public void ReplaceText (int offset, int count, string value) + { + ReadWriteTextDocument.ReplaceText (offset, count, value); + } + + public void ReplaceText (int offset, int count, ITextSource value) + { + ReadWriteTextDocument.ReplaceText (offset, count, value); + } + + public void ReplaceText (ISegment segment, string value) + { + if (segment == null) + throw new ArgumentNullException ("segment"); + ReadWriteTextDocument.ReplaceText (segment.Offset, segment.Length, value); + } + + public void ReplaceText (ISegment segment, ITextSource value) + { + if (segment == null) + throw new ArgumentNullException ("segment"); + ReadWriteTextDocument.ReplaceText (segment.Offset, segment.Length, value); + } + + public IDocumentLine GetLine (int lineNumber) + { + return ReadOnlyTextDocument.GetLine (lineNumber); + } + + public IDocumentLine GetLineByOffset (int offset) + { + return ReadOnlyTextDocument.GetLineByOffset (offset); + } + + public int OffsetToLineNumber (int offset) + { + return ReadOnlyTextDocument.OffsetToLineNumber (offset); + } + + public void AddMarker (IDocumentLine line, ITextLineMarker lineMarker) + { + if (line == null) + throw new ArgumentNullException ("line"); + if (lineMarker == null) + throw new ArgumentNullException ("lineMarker"); + textEditorImpl.AddMarker (line, lineMarker); + } + + public void AddMarker (int lineNumber, ITextLineMarker lineMarker) + { + if (lineMarker == null) + throw new ArgumentNullException ("lineMarker"); + AddMarker (GetLine (lineNumber), lineMarker); + } + + public void RemoveMarker (ITextLineMarker lineMarker) + { + if (lineMarker == null) + throw new ArgumentNullException ("lineMarker"); + textEditorImpl.RemoveMarker (lineMarker); + } + + public IEnumerable<ITextLineMarker> GetLineMarkers (IDocumentLine line) + { + if (line == null) + throw new ArgumentNullException ("line"); + return textEditorImpl.GetLineMarkers (line); + } + + public IEnumerable<ITextSegmentMarker> GetTextSegmentMarkersAt (ISegment segment) + { + if (segment == null) + throw new ArgumentNullException ("segment"); + return textEditorImpl.GetTextSegmentMarkersAt (segment); + } + + public IEnumerable<ITextSegmentMarker> GetTextSegmentMarkersAt (int offset) + { + return textEditorImpl.GetTextSegmentMarkersAt (offset); + } + + public void AddMarker (ITextSegmentMarker marker) + { + if (marker == null) + throw new ArgumentNullException ("marker"); + textEditorImpl.AddMarker (marker); + } + + public bool RemoveMarker (ITextSegmentMarker marker) + { + if (marker == null) + throw new ArgumentNullException ("marker"); + return textEditorImpl.RemoveMarker (marker); + } + + public void SetFoldings (IEnumerable<IFoldSegment> foldings) + { + if (foldings == null) + throw new ArgumentNullException ("foldings"); + textEditorImpl.SetFoldings (foldings); + } + + + public IEnumerable<IFoldSegment> GetFoldingsContaining (int offset) + { + return textEditorImpl.GetFoldingsContaining (offset); + } + + public IEnumerable<IFoldSegment> GetFoldingsIn (ISegment segment) + { + if (segment == null) + throw new ArgumentNullException ("segment"); + return textEditorImpl.GetFoldingsIn (segment.Offset, segment.Length); + } + + /// <summary> + /// Gets a character at the specified position in the document. + /// </summary> + /// <paramref name="offset">The index of the character to get.</paramref> + /// <exception cref="ArgumentOutOfRangeException">Offset is outside the valid range (0 to TextLength-1).</exception> + /// <returns>The character at the specified position.</returns> + /// <remarks>This is the same as Text[offset], but is more efficient because + /// it doesn't require creating a String object.</remarks> + public char GetCharAt (int offset) + { + return ReadOnlyTextDocument.GetCharAt (offset); + } + + public string GetTextAt (int offset, int length) + { + return ReadOnlyTextDocument.GetTextAt (offset, length); + } + + public string GetTextAt (ISegment segment) + { + if (segment == null) + throw new ArgumentNullException ("segment"); + return ReadOnlyTextDocument.GetTextAt (segment); + } + + public IReadonlyTextDocument CreateDocumentSnapshot () + { + return ReadWriteTextDocument.CreateDocumentSnapshot (); + } + + public string GetVirtualIndentationString (int lineNumber) + { + if (lineNumber < 1 || lineNumber > LineCount) + throw new ArgumentOutOfRangeException ("lineNumber"); + return textEditorImpl.GetVirtualIndentationString (lineNumber); + } + + public string GetVirtualIndentationString (IDocumentLine line) + { + if (line == null) + throw new ArgumentNullException ("line"); + return textEditorImpl.GetVirtualIndentationString (line.LineNumber); + } + + public int GetVirtualIndentationColumn (int lineNumber) + { + if (lineNumber < 1 || lineNumber > LineCount) + throw new ArgumentOutOfRangeException ("lineNumber"); + return 1 + textEditorImpl.GetVirtualIndentationString (lineNumber).Length; + } + + public int GetVirtualIndentationColumn (IDocumentLine line) + { + if (line == null) + throw new ArgumentNullException ("line"); + return 1 + textEditorImpl.GetVirtualIndentationString (line.LineNumber).Length; + } + + public TextReader CreateReader () + { + return ReadOnlyTextDocument.CreateReader (); + } + + public TextReader CreateReader (int offset, int length) + { + return ReadOnlyTextDocument.CreateReader (offset, length); + } + + public ITextSource CreateSnapshot () + { + return ReadOnlyTextDocument.CreateSnapshot (); + } + + public ITextSource CreateSnapshot (int offset, int length) + { + return ReadOnlyTextDocument.CreateSnapshot (offset, length); + } + + public ITextSource CreateSnapshot (ISegment segment) + { + if (segment == null) + throw new ArgumentNullException ("segment"); + return ReadOnlyTextDocument.CreateSnapshot (segment.Offset, segment.Length); + } + + public void WriteTextTo (TextWriter writer) + { + if (writer == null) + throw new ArgumentNullException ("writer"); + ReadOnlyTextDocument.WriteTextTo (writer); + } + + public void WriteTextTo (TextWriter writer, int offset, int length) + { + if (writer == null) + throw new ArgumentNullException ("writer"); + ReadOnlyTextDocument.WriteTextTo (writer, offset, length); + } + + public void ScrollTo (int offset) + { + textEditorImpl.ScrollTo (offset); + } + + public void ScrollTo (DocumentLocation loc) + { + ScrollTo (LocationToOffset (loc)); + } + + public void CenterTo (int offset) + { + textEditorImpl.CenterTo (offset); + } + + public void CenterTo (DocumentLocation loc) + { + CenterTo (LocationToOffset (loc)); + } + + [EditorBrowsable(EditorBrowsableState.Advanced)] + public void SetIndentationTracker (IndentationTracker indentationTracker) + { + textEditorImpl.SetIndentationTracker (indentationTracker); + } + + [EditorBrowsable(EditorBrowsableState.Advanced)] + public void SetSelectionSurroundingProvider (SelectionSurroundingProvider surroundingProvider) + { + textEditorImpl.SetSelectionSurroundingProvider (surroundingProvider); + } + + [EditorBrowsable(EditorBrowsableState.Advanced)] + public void SetTextPasteHandler (TextPasteHandler textPasteHandler) + { + textEditorImpl.SetTextPasteHandler (textPasteHandler); + } + + public IList<SkipChar> SkipChars { + get { + return textEditorImpl.SkipChars; + } + } + + /// <summary> + /// Skip chars are + /// </summary> + public void AddSkipChar (int offset, char ch) + { + textEditorImpl.AddSkipChar (offset, ch); + } + + protected override void Dispose (bool disposing) + { + if (disposing) { + DetachExtensionChain (); + textEditorImpl.Dispose (); + } + base.Dispose (disposing); + } + + protected override object CreateNativeWidget () + { + return textEditorImpl.CreateNativeControl (); + } + + #region Internal API + ExtensionContext extensionContext; + + internal ExtensionContext ExtensionContext { + get { + return extensionContext; + } + set { + if (extensionContext != null) { + extensionContext.RemoveExtensionNodeHandler ("MonoDevelop/SourceEditor2/TooltipProviders", OnTooltipProviderChanged); +// textEditorImpl.ClearTooltipProviders (); + } + extensionContext = value; + if (extensionContext != null) + extensionContext.AddExtensionNodeHandler ("MonoDevelop/SourceEditor2/TooltipProviders", OnTooltipProviderChanged); + } + } + + internal IEditorActionHost EditorActionHost { + get { + return textEditorImpl.Actions; + } + } + + internal ITextMarkerFactory TextMarkerFactory { + get { + return textEditorImpl.TextMarkerFactory; + } + } + + internal TextEditor (ITextEditorImpl textEditorImpl) + { + if (textEditorImpl == null) + throw new ArgumentNullException ("textEditorImpl"); + this.textEditorImpl = textEditorImpl; + commandRouter = new InternalCommandRouter (this); + fileTypeCondition.SetFileName (FileName); + ExtensionContext = AddinManager.CreateExtensionContext (); + ExtensionContext.RegisterCondition ("FileType", fileTypeCondition); + + FileNameChanged += delegate { + fileTypeCondition.SetFileName (FileName); + }; + + MimeTypeChanged += delegate { + textEditorImpl.ClearTooltipProviders (); + foreach (var extensionNode in allProviders) { + if (extensionNode.IsValidFor (MimeType)) + textEditorImpl.AddTooltipProvider ((TooltipProvider) extensionNode.CreateInstance ()); + } + }; + } + + TextEditorViewContent viewContent; + internal IViewContent GetViewContent () + { + if (viewContent == null) { + viewContent = new TextEditorViewContent (this, textEditorImpl); + } + + return viewContent; + } + + internal IFoldSegment CreateFoldSegment (int offset, int length, bool isFolded = false) + { + return textEditorImpl.CreateFoldSegment (offset, length, isFolded); + } + #endregion + + #region Editor extensions + InternalCommandRouter commandRouter; + class InternalCommandRouter : MonoDevelop.Components.Commands.IMultiCastCommandRouter + { + readonly TextEditor editor; + + public InternalCommandRouter (TextEditor editor) + { + this.editor = editor; + } + + #region IMultiCastCommandRouter implementation + + System.Collections.IEnumerable MonoDevelop.Components.Commands.IMultiCastCommandRouter.GetCommandTargets () + { + yield return editor.textEditorImpl; + yield return editor.textEditorImpl.EditorExtension; + } + #endregion + } + + internal object CommandRouter { + get { + return commandRouter; + } + } + + DocumentContext documentContext; + internal DocumentContext DocumentContext { + get { + return documentContext; + } + set { + documentContext = value; + OnDocumentContextChanged (EventArgs.Empty); + } + } + + public event EventHandler DocumentContextChanged; + + void OnDocumentContextChanged (EventArgs e) + { + if (DocumentContext != null) { + textEditorImpl.SetQuickTaskProviders (DocumentContext.GetContents<IQuickTaskProvider> ()); + textEditorImpl.SetUsageTaskProviders (DocumentContext.GetContents<UsageProviderEditorExtension> ()); + } else { + textEditorImpl.SetQuickTaskProviders (Enumerable.Empty<IQuickTaskProvider> ()); + textEditorImpl.SetUsageTaskProviders (Enumerable.Empty<UsageProviderEditorExtension> ()); + } + var handler = DocumentContextChanged; + if (handler != null) + handler (this, e); + } + + internal void InitializeExtensionChain (DocumentContext documentContext) + { + if (documentContext == null) + throw new ArgumentNullException ("documentContext"); + DetachExtensionChain (); + var extensions = ExtensionContext.GetExtensionNodes ("/MonoDevelop/Ide/TextEditorExtensions", typeof(TextEditorExtensionNode)); + TextEditorExtension last = null; + var mimetypeChain = DesktopService.GetMimeTypeInheritanceChainForFile (FileName).ToArray (); + foreach (TextEditorExtensionNode extNode in extensions) { + if (!extNode.Supports (FileName, mimetypeChain)) + continue; + TextEditorExtension ext; + try { + var instance = extNode.CreateInstance (); + ext = instance as TextEditorExtension; + if (ext == null) + continue; + } catch (Exception e) { + LoggingService.LogError ("Error while creating text editor extension :" + extNode.Id + "(" + extNode.Type +")", e); + continue; + } + if (ext.IsValidInContext (documentContext)) { + if (last != null) { + last.Next = ext; + last = ext; + } else { + textEditorImpl.EditorExtension = last = ext; + } + ext.Initialize (this, documentContext); + } + } + this.DocumentContext = documentContext; + } + + void DetachExtensionChain () + { + var editorExtension = textEditorImpl.EditorExtension; + while (editorExtension != null) { + try { + editorExtension.Dispose (); + } catch (Exception ex) { + LoggingService.LogError ("Exception while disposing extension:" + editorExtension, ex); + } + editorExtension = editorExtension.Next; + } + textEditorImpl.EditorExtension = null; + } + + public T GetContent<T> () where T : class + { + T result = textEditorImpl as T; + if (result != null) + return result; + var ext = textEditorImpl.EditorExtension; + while (ext != null) { + result = ext as T; + if (result != null) + return result; + ext = ext.Next; + } + return null; + } + + public IEnumerable<T> GetContents<T> () where T : class + { + T result = textEditorImpl as T; + if (result != null) + yield return result; + var ext = textEditorImpl.EditorExtension; + while (ext != null) { + result = ext as T; + if (result != null) + yield return result; + ext = ext.Next; + } + } + #endregion + + public string GetPangoMarkup (int offset, int length) + { + return textEditorImpl.GetPangoMarkup (offset, length); + } + + public string GetPangoMarkup (ISegment segment) + { + if (segment == null) + throw new ArgumentNullException ("segment"); + return textEditorImpl.GetPangoMarkup (segment.Offset, segment.Length); + } + + public static implicit operator Microsoft.CodeAnalysis.Text.SourceText (TextEditor editor) + { + return new MonoDevelopSourceText (editor); + } + + + #region Annotations + // Annotations: points either null (no annotations), to the single annotation, + // or to an AnnotationList. + // Once it is pointed at an AnnotationList, it will never change (this allows thread-safety support by locking the list) + + object annotations; + sealed class AnnotationList : List<object>, ICloneable + { + // There are two uses for this custom list type: + // 1) it's private, and thus (unlike List<object>) cannot be confused with real annotations + // 2) It allows us to simplify the cloning logic by making the list behave the same as a clonable annotation. + public AnnotationList (int initialCapacity) : base(initialCapacity) + { + } + + public object Clone () + { + lock (this) { + AnnotationList copy = new AnnotationList (this.Count); + for (int i = 0; i < this.Count; i++) { + object obj = this [i]; + ICloneable c = obj as ICloneable; + copy.Add (c != null ? c.Clone () : obj); + } + return copy; + } + } + } + + public void AddAnnotation (object annotation) + { + if (annotation == null) + throw new ArgumentNullException ("annotation"); + retry: // Retry until successful + object oldAnnotation = Interlocked.CompareExchange (ref this.annotations, annotation, null); + if (oldAnnotation == null) { + return; // we successfully added a single annotation + } + AnnotationList list = oldAnnotation as AnnotationList; + if (list == null) { + // we need to transform the old annotation into a list + list = new AnnotationList (4); + list.Add (oldAnnotation); + list.Add (annotation); + if (Interlocked.CompareExchange (ref this.annotations, list, oldAnnotation) != oldAnnotation) { + // the transformation failed (some other thread wrote to this.annotations first) + goto retry; + } + } else { + // once there's a list, use simple locking + lock (list) { + list.Add (annotation); + } + } + } + + public void RemoveAnnotations<T> () where T : class + { + retry: // Retry until successful + object oldAnnotations = this.annotations; + var list = oldAnnotations as AnnotationList; + if (list != null) { + lock (list) + list.RemoveAll (obj => obj is T); + } else if (oldAnnotations is T) { + if (Interlocked.CompareExchange (ref this.annotations, null, oldAnnotations) != oldAnnotations) { + // Operation failed (some other thread wrote to this.annotations first) + goto retry; + } + } + } + + public T Annotation<T> () where T: class + { + object annotations = this.annotations; + var list = annotations as AnnotationList; + if (list != null) { + lock (list) { + foreach (object obj in list) { + T t = obj as T; + if (t != null) + return t; + } + return null; + } + } + return annotations as T; + } + + /// <summary> + /// Gets all annotations stored on this AstNode. + /// </summary> + public IEnumerable<object> Annotations { + get { + object annotations = this.annotations; + AnnotationList list = annotations as AnnotationList; + if (list != null) { + lock (list) { + return list.ToArray (); + } + } + if (annotations != null) + return new [] { annotations }; + return Enumerable.Empty<object> (); + } + } + #endregion + + List<ProjectedTooltipProvider> projectedProviders = new List<ProjectedTooltipProvider> (); + IReadOnlyList<MonoDevelop.Ide.Editor.Projection.Projection> projections = null; + + public void SetOrUpdateProjections (DocumentContext ctx, IReadOnlyList<MonoDevelop.Ide.Editor.Projection.Projection> projections, DisabledProjectionFeatures disabledFeatures = DisabledProjectionFeatures.None) + { + if (ctx == null) + throw new ArgumentNullException ("ctx"); + if (this.projections != null) { + foreach (var projection in this.projections) { + projection.Dettach (); + } + } + this.projections = projections; + if (projections != null) { + foreach (var projection in projections) { + projection.Attach (this); + } + } + + if ((disabledFeatures & DisabledProjectionFeatures.SemanticHighlighting) != DisabledProjectionFeatures.SemanticHighlighting) { + if (SemanticHighlighting is ProjectedSemanticHighlighting) { + ((ProjectedSemanticHighlighting)SemanticHighlighting).UpdateProjection (projections); + } else { + SemanticHighlighting = new ProjectedSemanticHighlighting (this, ctx, projections); + } + } + + if ((disabledFeatures & DisabledProjectionFeatures.Tooltips) != DisabledProjectionFeatures.Tooltips) { + projectedProviders.ForEach (textEditorImpl.RemoveTooltipProvider); + projectedProviders = new List<ProjectedTooltipProvider> (); + foreach (var projection in projections) { + foreach (var tp in projection.ProjectedEditor.textEditorImpl.TooltipProvider) { + var newProvider = new ProjectedTooltipProvider (this, ctx, projection, tp); + projectedProviders.Add (newProvider); + textEditorImpl.AddTooltipProvider (newProvider); + } + } + } + InitializeProjectionExtensions (ctx, disabledFeatures); + } + + bool projectionsAdded = false; + void InitializeProjectionExtensions (DocumentContext ctx, DisabledProjectionFeatures disabledFeatures) + { + if (projectionsAdded) { + TextEditorExtension ext = textEditorImpl.EditorExtension; + while (ext != null && ext.Next != null) { + var pext = ext as IProjectionExtension; + if (pext != null) { + pext.Projections = projections; + } + ext = ext.Next; + } + return; + } + + if (projections.Count == 0) + return; + + TextEditorExtension lastExtension = textEditorImpl.EditorExtension; + while (lastExtension != null && lastExtension.Next != null) { + var completionTextEditorExtension = lastExtension.Next as CompletionTextEditorExtension; + if (completionTextEditorExtension != null) { + var projectedFilterExtension = new ProjectedFilterCompletionTextEditorExtension (completionTextEditorExtension, projections) { Next = completionTextEditorExtension.Next }; + lastExtension.Next = projectedFilterExtension; + projectedFilterExtension.Initialize (this, DocumentContext); + } + lastExtension = lastExtension.Next; + } + + // no extensions -> no projections needed + if (textEditorImpl.EditorExtension == null) + return; + + if ((disabledFeatures & DisabledProjectionFeatures.Completion) != DisabledProjectionFeatures.Completion) { + var projectedCompletionExtension = new ProjectedCompletionExtension (ctx, projections); + projectedCompletionExtension.Next = textEditorImpl.EditorExtension; + + textEditorImpl.EditorExtension = projectedCompletionExtension; + projectedCompletionExtension.Initialize (this, DocumentContext); + } + projectionsAdded = true; + } + + public void AddOverlay (Control messageOverlayContent, Func<int> sizeFunc) + { + textEditorImpl.AddOverlay (messageOverlayContent, sizeFunc); + } + + public void RemoveOverlay (Control messageOverlayContent) + { + textEditorImpl.RemoveOverlay (messageOverlayContent); + } + } +}
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