[11700] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[12012] | 3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[11700] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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[12646] | 22 | using System;
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[11700] | 23 | using System.Linq;
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[11800] | 24 | using System.Threading.Tasks;
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[11700] | 25 | using ICSharpCode.AvalonEdit.CodeCompletion;
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[12646] | 26 | using ICSharpCode.NRefactory.Editor;
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[12653] | 27 | using Timer = System.Timers.Timer;
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[11700] | 28 |
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| 29 | namespace HeuristicLab.CodeEditor {
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| 30 | internal abstract class CodeCompletionStrategy : ICodeCompletionStrategy {
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| 31 | protected readonly CodeEditor codeEditor;
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[12653] | 32 | protected readonly Timer parserTimer;
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[12646] | 33 | protected IDocument document;
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[11700] | 34 |
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| 35 | protected CodeCompletionStrategy(CodeEditor codeEditor) {
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| 36 | this.codeEditor = codeEditor;
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[12646] | 37 | this.codeEditor.TextEditorTextChanged += codeEditor_TextEditorTextChanged;
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[12653] | 38 | parserTimer = new Timer(1000);
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[12654] | 39 | parserTimer.Elapsed += (sender, args) => Task.Run(() => {
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| 40 | DoParseStep();
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| 41 | if (codeEditor.IsDisposed && parserTimer.Enabled) {
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| 42 | parserTimer.Stop();
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| 43 | parserTimer.Dispose();
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| 44 | }
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| 45 | });
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[11700] | 46 | }
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| 47 |
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| 48 | public virtual void DoCodeCompletion(bool controlSpace) {
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| 49 | var codeCompletionResult = GetCodeCompletionResult(controlSpace);
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| 50 | ApplyCodeCompletionData(codeCompletionResult);
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| 51 | }
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| 52 |
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[11933] | 53 | public virtual void Initialize() {
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[12653] | 54 | parserTimer.Enabled = true;
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[11800] | 55 | }
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| 56 |
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[11700] | 57 | protected abstract CodeCompletionResult GetCodeCompletionResult(bool controlSpace);
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[11800] | 58 | protected abstract void DoParseStep();
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[11700] | 59 |
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| 60 | protected virtual void ApplyCodeCompletionData(CodeCompletionResult codeCompletionResult) {
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| 61 | var textArea = codeEditor.TextEditor.TextArea;
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| 62 | var document = codeEditor.TextEditor.Document;
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| 63 | int offset = codeEditor.TextEditor.CaretOffset;
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| 64 |
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| 65 | if (codeEditor.OverloadInsightWindow == null && codeCompletionResult.OverloadProvider != null) {
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| 66 | var iw = codeEditor.OverloadInsightWindow = new OverloadInsightWindow(textArea);
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| 67 | iw.Provider = codeCompletionResult.OverloadProvider;
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| 68 | iw.Show();
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| 69 | iw.Closed += (sender, args) => codeEditor.OverloadInsightWindow = null;
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| 70 | }
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| 71 |
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| 72 | if (codeEditor.CompletionWindow == null && codeCompletionResult.CompletionData.Any()) {
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| 73 | var cw = codeEditor.CompletionWindow = new CompletionWindow(textArea);
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| 74 | cw.CloseWhenCaretAtBeginning = true;
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| 75 | cw.StartOffset -= codeCompletionResult.TriggerWordLength;
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| 76 | cw.Closed += (sender, args) => codeEditor.CompletionWindow = null;
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| 77 |
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| 78 | var data = cw.CompletionList.CompletionData;
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[11800] | 79 | var newData = codeCompletionResult.CompletionData.OrderBy(x => x.Text).ToArray();
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| 80 | foreach (var completion in newData)
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[11700] | 81 | data.Add(completion);
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| 82 |
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| 83 | if (codeCompletionResult.TriggerWordLength > 0)
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| 84 | cw.CompletionList.SelectItem(codeCompletionResult.TriggerWord);
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| 85 |
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| 86 | cw.Show();
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| 87 | }
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| 88 |
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| 89 | if (codeEditor.OverloadInsightWindow != null) {
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| 90 | var iw = codeEditor.OverloadInsightWindow;
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| 91 | var provider = iw.Provider as IUpdatableOverloadProvider;
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| 92 | if (provider != null) {
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| 93 | provider.Update(document, offset);
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| 94 | if (provider.RequestClose) {
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| 95 | iw.Close();
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| 96 | }
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| 97 | }
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| 98 | }
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| 99 | }
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[11800] | 100 |
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[12646] | 101 | private void codeEditor_TextEditorTextChanged(object sender, EventArgs e) {
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| 102 | var doc = codeEditor.TextEditor.Document;
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| 103 | document = new ReadOnlyDocument(doc, doc.FileName);
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| 104 | }
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[11700] | 105 | }
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| 106 | }
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