protected void OnCompletionContextChanged(object o, EventArgs a) { if (autoHideCompletionWindow) { CompletionWindowManager.HideWindow(); } if (autoHideParameterWindow) { ParameterInformationWindowManager.HideWindow(this, CompletionWidget); } ParameterInformationWindowManager.UpdateCursorPosition(this, CompletionWidget); }
internal protected virtual void OnCompletionContextChanged(object o, EventArgs a) { if (!IsActiveExtension()) { return; } if (autoHideCompletionWindow) { CompletionWindowManager.HideWindow(); } if (autoHideParameterWindow) { ParameterInformationWindowManager.HideWindow(this, CompletionWidget); } ParameterInformationWindowManager.UpdateCursorPosition(this, CompletionWidget); }
// When a key is pressed, and before the key is processed by the editor, this method will be invoked. // Return true if the key press should be processed by the editor. public override bool KeyPress(KeyDescriptor descriptor) { if (!IsActiveExtension()) { return(base.KeyPress(descriptor)); } bool res; if (CurrentCompletionContext != null) { if (CompletionWindowManager.PreProcessKeyEvent(descriptor)) { CompletionWindowManager.PostProcessKeyEvent(descriptor); autoHideCompletionWindow = true; // in named parameter case leave the parameter window open. autoHideParameterWindow = descriptor.KeyChar != ':'; if (!autoHideParameterWindow && ParameterInformationWindowManager.IsWindowVisible) { ParameterInformationWindowManager.PostProcessKeyEvent(this, CompletionWidget, descriptor); } return(false); } autoHideCompletionWindow = autoHideParameterWindow = false; } if (ParameterInformationWindowManager.IsWindowVisible) { if (ParameterInformationWindowManager.ProcessKeyEvent(this, CompletionWidget, descriptor)) { return(false); } autoHideCompletionWindow = autoHideParameterWindow = false; } // int oldPos = Editor.CursorPosition; // int oldLen = Editor.TextLength; char deleteOrBackspaceTriggerChar = '\0'; if (descriptor.SpecialKey == SpecialKey.Delete && Editor.CaretOffset < Editor.Length) { deleteOrBackspaceTriggerChar = Editor.GetCharAt(Editor.CaretOffset); } if (descriptor.SpecialKey == SpecialKey.BackSpace && Editor.CaretOffset > 0) { deleteOrBackspaceTriggerChar = Editor.GetCharAt(Editor.CaretOffset - 1); } res = base.KeyPress(descriptor); if (Editor.EditMode == EditMode.TextLink && Editor.TextLinkPurpose == TextLinkPurpose.Rename) { return(res); } if (descriptor.KeyChar == (char)16 || descriptor.KeyChar == (char)17) { return(res); } CompletionWindowManager.PostProcessKeyEvent(descriptor); var ignoreMods = ModifierKeys.Control | ModifierKeys.Alt | ModifierKeys.Command; // Handle parameter completion if (ParameterInformationWindowManager.IsWindowVisible) { ParameterInformationWindowManager.PostProcessKeyEvent(this, CompletionWidget, descriptor); } if ((descriptor.ModifierKeys & ignoreMods) != 0) { return(res); } // don't complete on block selection if (/*!EnableCodeCompletion ||*/ Editor.SelectionMode == MonoDevelop.Ide.Editor.SelectionMode.Block) { return(res); } // Handle code completion if (descriptor.KeyChar != '\0' && CompletionWidget != null && !CompletionWindowManager.IsVisible) { completionTokenSrc.Cancel(); CurrentCompletionContext = CompletionWidget.CurrentCodeCompletionContext; completionTokenSrc = new CancellationTokenSource(); var caretOffset = Editor.CaretOffset; var token = completionTokenSrc.Token; try { var task = HandleCodeCompletionAsync(CurrentCompletionContext, new CompletionTriggerInfo(CompletionTriggerReason.CharTyped, descriptor.KeyChar), token); if (task != null) { // Show the completion window in two steps. The call to PrepareShowWindow creates the window but // it doesn't show it. It is used only to process the keys while the completion data is being retrieved. CompletionWindowManager.PrepareShowWindow(this, descriptor.KeyChar, CompletionWidget, CurrentCompletionContext); EventHandler windowClosed = delegate(object o, EventArgs a) { completionTokenSrc.Cancel(); }; CompletionWindowManager.WindowClosed += windowClosed; task.ContinueWith(t => { CompletionWindowManager.WindowClosed -= windowClosed; if (token.IsCancellationRequested) { return; } var result = t.Result; if (result != null) { int triggerWordLength = result.TriggerWordLength + (Editor.CaretOffset - caretOffset); if (triggerWordLength > 0 && (triggerWordLength < Editor.CaretOffset || (triggerWordLength == 1 && Editor.CaretOffset == 1))) { CurrentCompletionContext = CompletionWidget.CreateCodeCompletionContext(Editor.CaretOffset - triggerWordLength); if (result.TriggerWordStart >= 0) { CurrentCompletionContext.TriggerOffset = result.TriggerWordStart; } CurrentCompletionContext.TriggerWordLength = triggerWordLength; } // Now show the window for real. if (!CompletionWindowManager.ShowWindow(result, CurrentCompletionContext)) { CurrentCompletionContext = null; } } else { CompletionWindowManager.HideWindow(); CurrentCompletionContext = null; } }, Runtime.MainTaskScheduler); } else { CurrentCompletionContext = null; } } catch (TaskCanceledException) { } catch (AggregateException) { } } if ((descriptor.SpecialKey == SpecialKey.Delete || descriptor.SpecialKey == SpecialKey.BackSpace) && CompletionWidget != null && !CompletionWindowManager.IsVisible) { if (!char.IsLetterOrDigit(deleteOrBackspaceTriggerChar) && deleteOrBackspaceTriggerChar != '_') { return(res); } CurrentCompletionContext = CompletionWidget.CurrentCodeCompletionContext; int cpos, wlen; if (!GetCompletionCommandOffset(out cpos, out wlen)) { cpos = Editor.CaretOffset; wlen = 0; } CurrentCompletionContext.TriggerOffset = cpos; CurrentCompletionContext.TriggerWordLength = wlen; completionTokenSrc.Cancel(); completionTokenSrc = new CancellationTokenSource(); var caretOffset = Editor.CaretOffset; var token = completionTokenSrc.Token; try { var task = HandleCodeCompletionAsync(CurrentCompletionContext, new CompletionTriggerInfo(CompletionTriggerReason.BackspaceOrDeleteCommand, deleteOrBackspaceTriggerChar), token); if (task != null) { // Show the completion window in two steps. The call to PrepareShowWindow creates the window but // it doesn't show it. It is used only to process the keys while the completion data is being retrieved. CompletionWindowManager.PrepareShowWindow(this, descriptor.KeyChar, CompletionWidget, CurrentCompletionContext); EventHandler windowClosed = delegate(object o, EventArgs a) { completionTokenSrc.Cancel(); }; CompletionWindowManager.WindowClosed += windowClosed; task.ContinueWith(t => { CompletionWindowManager.WindowClosed -= windowClosed; if (token.IsCancellationRequested) { return; } var result = t.Result; if (result != null) { int triggerWordLength = result.TriggerWordLength + (Editor.CaretOffset - caretOffset); if (triggerWordLength > 0 && (triggerWordLength < Editor.CaretOffset || (triggerWordLength == 1 && Editor.CaretOffset == 1))) { CurrentCompletionContext = CompletionWidget.CreateCodeCompletionContext(Editor.CaretOffset - triggerWordLength); if (result.TriggerWordStart >= 0) { CurrentCompletionContext.TriggerOffset = result.TriggerWordStart; } CurrentCompletionContext.TriggerWordLength = triggerWordLength; } // Now show the window for real. if (!CompletionWindowManager.ShowWindow(result, CurrentCompletionContext)) { CurrentCompletionContext = null; } else { CompletionWindowManager.Wnd.StartOffset = CurrentCompletionContext.TriggerOffset; } } else { CompletionWindowManager.HideWindow(); CurrentCompletionContext = null; } }, Runtime.MainTaskScheduler); } else { CurrentCompletionContext = null; } } catch (TaskCanceledException) { CurrentCompletionContext = null; } catch (AggregateException) { CurrentCompletionContext = null; } } if (CompletionWidget != null) { CodeCompletionContext ctx = CompletionWidget.CurrentCodeCompletionContext; var newparameterHintingSrc = new CancellationTokenSource(); var token = newparameterHintingSrc.Token; try { var task = HandleParameterCompletionAsync(ctx, descriptor.KeyChar, token); if (task != null) { parameterHintingSrc.Cancel(); parameterHintingSrc = newparameterHintingSrc; parameterHingtingCursorPositionChanged = false; task.ContinueWith(t => { if (!token.IsCancellationRequested && t.Result != null) { ParameterInformationWindowManager.ShowWindow(this, CompletionWidget, ctx, t.Result); if (parameterHingtingCursorPositionChanged) { ParameterInformationWindowManager.UpdateCursorPosition(this, CompletionWidget); } } }, token, TaskContinuationOptions.None, Runtime.MainTaskScheduler); } else { //Key was typed that was filtered out, no heavy processing will be performed(task==null) //but we still want to update ParameterInfo window to avoid displaying it outside method call parameterHingtingCursorPositionChanged = true; } } catch (TaskCanceledException) { } catch (AggregateException) { } } return(res); }