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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 System;
using MonoDevelop.Core;
using MonoDevelop.Ide.CodeCompletion;
using MonoDevelop.Ide.Editor.Extension;
using ICSharpCode.NRefactory6.CSharp;
using MonoDevelop.Ide.Editor;
namespace MonoDevelop.JSon
{
class JSonTextEditorExtension : TextEditorExtension
{
CacheIndentEngine stateTracker;
protected override void Initialize ()
{
base.Initialize ();
IStateMachineIndentEngine indentEngine;
indentEngine = new JSonIndentEngine (Editor, DocumentContext);
stateTracker = new CacheIndentEngine (indentEngine);
Editor.SetIndentationTracker (new JSonIndentationTracker (Editor, stateTracker));
}
public override bool KeyPress (KeyDescriptor descriptor)
{
var result = base.KeyPress (descriptor);
if (descriptor.SpecialKey == SpecialKey.Return) {
if (Editor.Options.IndentStyle == MonoDevelop.Ide.Editor.IndentStyle.Virtual) {
if (Editor.GetLine (Editor.CaretLine).Length == 0)
Editor.CaretColumn = Editor.GetVirtualIndentationColumn (Editor.CaretLine);
} else {
DoReSmartIndent ();
}
}
return result;
}
void DoReSmartIndent ()
{
DoReSmartIndent (Editor.CaretOffset);
}
void DoReSmartIndent (int cursor)
{
SafeUpdateIndentEngine (cursor);
if (stateTracker.LineBeganInsideVerbatimString || stateTracker.LineBeganInsideMultiLineComment)
return;
var line = Editor.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 (Editor.GetCharAt (max));
}
} catch (Exception e) {
LoggingService.LogError ("Exception during indentation", e);
}
int pos = line.Offset;
string curIndent = line.GetIndentation (Editor);
int nlwsp = curIndent.Length;
int offset = cursor > pos + nlwsp ? cursor - (pos + nlwsp) : 0;
if (!stateTracker.LineBeganInsideMultiLineComment || (nlwsp < line.LengthIncludingDelimiter && Editor.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;
}
Editor.ReplaceText (pos, nlwsp, newIndent);
newIndentLength = newIndent.Length;
CompletionWindowManager.HideWindow ();
}
pos += newIndentLength;
} else {
pos += curIndent.Length;
}
pos += offset;
Editor.FixVirtualIndentation ();
}
internal void SafeUpdateIndentEngine (int offset)
{
try {
stateTracker.Update (Editor, offset);
} catch (Exception e) {
LoggingService.LogError ("Error while updating the indentation engine", e);
}
}
}
}
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