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//
// JSonTextEditorExtension.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 MonoDevelop.Ide.Gui.Content;
using ICSharpCode.NRefactory.CSharp;
using Gdk;
using Mono.TextEditor;
using System;
using MonoDevelop.Core;
using MonoDevelop.Ide.CodeCompletion;
namespace MonoDevelop.SourceEditor.JSon
{
class JSonTextEditorExtension : TextEditorExtension
{
CacheIndentEngine stateTracker;
TextEditorData textEditorData {
get {
return document.Editor;
}
}
public override void Initialize ()
{
base.Initialize ();
IStateMachineIndentEngine indentEngine;
indentEngine = new JSonIndentEngine (document.Editor);
stateTracker = new CacheIndentEngine (indentEngine);
document.Editor.IndentationTracker = new JSonIndentationTracker (document.Editor, stateTracker);
}
public override bool KeyPress (Key key, char keyChar, ModifierType modifier)
{
var result = base.KeyPress (key, keyChar, modifier);
if (key == Key.Return) {
if (textEditorData.Options.IndentStyle == IndentStyle.Virtual) {
if (textEditorData.GetLine (textEditorData.Caret.Line).Length == 0)
textEditorData.Caret.Column = textEditorData.IndentationTracker.GetVirtualIndentationColumn (textEditorData.Caret.Location);
} else {
DoReSmartIndent ();
}
}
return result;
}
void DoReSmartIndent ()
{
DoReSmartIndent (textEditorData.Caret.Offset);
}
void DoReSmartIndent (int cursor)
{
SafeUpdateIndentEngine (cursor);
if (stateTracker.LineBeganInsideVerbatimString || stateTracker.LineBeganInsideMultiLineComment)
return;
var line = textEditorData.Document.GetLineByOffset (cursor);
// Get context to the end of the line w/o changing the main engine's state
var curTracker = stateTracker.Clone ();
try {
for (int max = cursor; max < line.EndOffset; max++) {
curTracker.Push (textEditorData.Document.GetCharAt (max));
}
} catch (Exception e) {
LoggingService.LogError ("Exception during indentation", e);
}
int pos = line.Offset;
string curIndent = line.GetIndentation (textEditorData.Document);
int nlwsp = curIndent.Length;
int offset = cursor > pos + nlwsp ? cursor - (pos + nlwsp) : 0;
if (!stateTracker.LineBeganInsideMultiLineComment || (nlwsp < line.LengthIncludingDelimiter && textEditorData.Document.GetCharAt (line.Offset + nlwsp) == '*')) {
// Possibly replace the indent
string newIndent = curTracker.ThisLineIndent;
int newIndentLength = newIndent.Length;
if (newIndent != curIndent) {
if (CompletionWindowManager.IsVisible) {
if (pos < CompletionWindowManager.CodeCompletionContext.TriggerOffset)
CompletionWindowManager.CodeCompletionContext.TriggerOffset -= nlwsp;
}
newIndentLength = textEditorData.Replace (pos, nlwsp, newIndent);
textEditorData.Document.CommitLineUpdate (textEditorData.Caret.Line);
CompletionWindowManager.HideWindow ();
}
pos += newIndentLength;
} else {
pos += curIndent.Length;
}
pos += offset;
textEditorData.FixVirtualIndentation ();
}
internal void SafeUpdateIndentEngine (int offset)
{
try {
stateTracker.Update (offset);
} catch (Exception e) {
LoggingService.LogError ("Error while updating the indentation engine", e);
}
}
}
}
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