public void OnTextInput(TextInputEventArgs e, int caretIndex, int line, int column)
{
if (e.Source == editor)
{
intellisenseJobRunner.InvokeAsync(() =>
{
if (e.Text.Length == 1)
{
char currentChar = e.Text[0];
if (completionAssistant.IsVisible)
{
if (caretIndex < completionAssistant.CurrentSignatureHelp.Offset)
{
Dispatcher.UIThread.InvokeTaskAsync(() =>
{
completionAssistant.PopMethod();
}).Wait();
}
if (completionAssistant.CurrentSignatureHelp != null)
{
int index = 0;
int level = 0;
int offset = completionAssistant.CurrentSignatureHelp.Offset;
while (offset < caretIndex)
{
var curChar = '\0';
Dispatcher.UIThread.InvokeTaskAsync(() =>
{
curChar = editor.TextDocument.GetCharAt(offset++);
}).Wait();
switch (curChar)
{
case ',':
if (level == 0)
{
index++;
}
break;
case '(':
level++;
break;
case ')':
level--;
break;
}
}
completionAssistant.SetParameterIndex(index);
}
}
if (currentChar == '(' && (completionAssistant.CurrentSignatureHelp == null || completionAssistant.CurrentSignatureHelp.Offset != editor.CaretIndex))
{
string currentWord = string.Empty;
char behindBehindCaretChar = '\0';
Dispatcher.UIThread.InvokeTaskAsync(() =>
{
behindBehindCaretChar = editor.TextDocument.GetCharAt(caretIndex - 2);
}).Wait();
if (behindBehindCaretChar.IsWhiteSpace() && behindBehindCaretChar != '\0')
{
Dispatcher.UIThread.InvokeTaskAsync(() =>
{
currentWord = editor.GetPreviousWordAtIndex(editor.CaretIndex - 1);
}).Wait();
}
else
{
Dispatcher.UIThread.InvokeTaskAsync(() =>
{
currentWord = editor.GetWordAtIndex(editor.CaretIndex - 1);
}).Wait();
}
var signatureHelpTask = languageService.SignatureHelp(file, EditorModel.UnsavedFiles.FirstOrDefault(), EditorModel.UnsavedFiles.ToList(), line, column, editor.CaretIndex, currentWord);
signatureHelpTask.Wait();
var signatureHelp = signatureHelpTask.Result;
if (signatureHelp != null)
{
Dispatcher.UIThread.InvokeTaskAsync(() =>
{
completionAssistant.PushMethod(signatureHelp);
}).Wait();
}
}
else if (currentChar == ')')
{
Dispatcher.UIThread.InvokeTaskAsync(() =>
{
completionAssistant.PopMethod();
}).Wait();
}
if (IsCompletionChar(currentChar))
{
DoComplete(true);
}
if (currentChar.IsWhiteSpace() || IsSearchChar(currentChar))
{
SetCursor(caretIndex, line, column, EditorModel.UnsavedFiles.ToList(), false);
}
if (IsTriggerChar(currentChar, intellisenseControl.IsVisible) || IsLanguageSpecificTriggerChar(currentChar))
{
if (!intellisenseControl.IsVisible)
{
OpenIntellisense(currentChar, caretIndex);
}
else if (caretIndex > intellisenseStartedAt)
{
UpdateFilter(caretIndex);
}
else
{
CloseIntellisense();
SetCursor(caretIndex, line, column, EditorModel.UnsavedFiles.ToList(), false);
}
isProcessingKey = intellisenseControl.IsVisible;
}
}
});
}
}
/// <summary>
/// Called before the <see cref="TextInput"/> event occurs.
/// </summary>
/// <param name="e">The event args.</param>
protected virtual void OnTextInput(TextInputEventArgs e)
{
}
/// <summary>
/// Processes an input event.
/// </summary>
/// <param name="e">The input event arguments.</param>
private void ProcessRawEvent(RawInputEventArgs e)
{
IInputElement element = FocusedElement;
if (element != null)
{
var keyInput = e as RawKeyEventArgs;
if (keyInput != null)
{
switch (keyInput.Type)
{
case RawKeyEventType.KeyDown:
case RawKeyEventType.KeyUp:
var routedEvent = keyInput.Type == RawKeyEventType.KeyDown
? InputElement.KeyDownEvent
: InputElement.KeyUpEvent;
KeyEventArgs ev = new KeyEventArgs
{
RoutedEvent = routedEvent,
Device = this,
Key = keyInput.Key,
Modifiers = keyInput.Modifiers,
Source = element,
};
IVisual currentHandler = element;
while (currentHandler != null && !ev.Handled && keyInput.Type == RawKeyEventType.KeyDown)
{
var bindings = (currentHandler as IInputElement)?.KeyBindings;
if (bindings != null)
{
foreach (var binding in bindings)
{
if (ev.Handled)
{
break;
}
binding.TryHandle(ev);
}
}
currentHandler = currentHandler.VisualParent;
}
element.RaiseEvent(ev);
e.Handled = ev.Handled;
break;
}
}
var text = e as RawTextInputEventArgs;
if (text != null)
{
var ev = new TextInputEventArgs()
{
Device = this,
Text = text.Text,
Source = element,
RoutedEvent = InputElement.TextInputEvent
};
element.RaiseEvent(ev);
e.Handled = ev.Handled;
}
}
}
public void ProcessRawEvent(RawInputEventArgs e)
{
if (e.Handled)
{
return;
}
var element = FocusedElement ?? e.Root;
if (e is RawKeyEventArgs keyInput)
{
switch (keyInput.Type)
{
case RawKeyEventType.KeyDown:
case RawKeyEventType.KeyUp:
var routedEvent = keyInput.Type == RawKeyEventType.KeyDown
? InputElement.KeyDownEvent
: InputElement.KeyUpEvent;
KeyEventArgs ev = new KeyEventArgs
{
RoutedEvent = routedEvent,
Device = this,
Key = keyInput.Key,
KeyModifiers = KeyModifiersUtils.ConvertToKey(keyInput.Modifiers),
Source = element,
};
IVisual?currentHandler = element;
while (currentHandler != null && !ev.Handled && keyInput.Type == RawKeyEventType.KeyDown)
{
var bindings = (currentHandler as IInputElement)?.KeyBindings;
if (bindings != null)
{
KeyBinding[]? bindingsCopy = null;
// Create a copy of the KeyBindings list if there's a binding which matches the event.
// If we don't do this the foreach loop will throw an InvalidOperationException when the KeyBindings list is changed.
// This can happen when a new view is loaded which adds its own KeyBindings to the handler.
foreach (var binding in bindings)
{
if (binding.Gesture?.Matches(ev) == true)
{
bindingsCopy = bindings.ToArray();
break;
}
}
if (bindingsCopy is object)
{
foreach (var binding in bindingsCopy)
{
if (ev.Handled)
{
break;
}
binding.TryHandle(ev);
}
}
}
currentHandler = currentHandler.VisualParent;
}
element.RaiseEvent(ev);
e.Handled = ev.Handled;
break;
}
}
if (e is RawTextInputEventArgs text)
{
var ev = new TextInputEventArgs()
{
Device = this,
Text = text.Text,
Source = element,
RoutedEvent = InputElement.TextInputEvent
};
element.RaiseEvent(ev);
e.Handled = ev.Handled;
}
}
protected override void OnTextInput(TextInputEventArgs e)
{
HandleTextInput(e.Text);
}
private void ProcessRawEvent(RawInputEventArgs e)
{
IInputElement element = FocusedElement;
if (element != null)
{
var keyInput = e as RawKeyEventArgs;
if (keyInput != null)
{
switch (keyInput.Type)
{
case RawKeyEventType.KeyDown:
case RawKeyEventType.KeyUp:
var routedEvent = keyInput.Type == RawKeyEventType.KeyDown
? InputElement.KeyDownEvent
: InputElement.KeyUpEvent;
KeyEventArgs ev = new KeyEventArgs
{
RoutedEvent = routedEvent,
Device = this,
Key = keyInput.Key,
Modifiers = keyInput.Modifiers,
Source = element,
};
IVisual currentHandler = element;
while (currentHandler != null && !ev.Handled && keyInput.Type == RawKeyEventType.KeyDown)
{
var bindings = (currentHandler as IInputElement)?.KeyBindings;
if(bindings!=null)
foreach (var binding in bindings)
{
if(ev.Handled)
break;
binding.TryHandle(ev);
}
currentHandler = currentHandler.VisualParent;
}
element.RaiseEvent(ev);
e.Handled = ev.Handled;
break;
}
}
var text = e as RawTextInputEventArgs;
if (text != null)
{
var ev = new TextInputEventArgs()
{
Device = this,
Text = text.Text,
Source = element,
RoutedEvent = InputElement.TextInputEvent
};
element.RaiseEvent(ev);
e.Handled = ev.Handled;
}
}
}
public void ProcessRawEvent(RawInputEventArgs e)
{
if (e.Handled)
{
return;
}
var element = FocusedElement ?? e.Root;
if (e is RawKeyEventArgs keyInput)
{
switch (keyInput.Type)
{
case RawKeyEventType.KeyDown:
case RawKeyEventType.KeyUp:
var routedEvent = keyInput.Type == RawKeyEventType.KeyDown
? InputElement.KeyDownEvent
: InputElement.KeyUpEvent;
KeyEventArgs ev = new KeyEventArgs
{
RoutedEvent = routedEvent,
Device = this,
Key = keyInput.Key,
KeyModifiers = KeyModifiersUtils.ConvertToKey(keyInput.Modifiers),
Source = element,
};
IVisual currentHandler = element;
while (currentHandler != null && !ev.Handled && keyInput.Type == RawKeyEventType.KeyDown)
{
var bindings = (currentHandler as IInputElement)?.KeyBindings;
if (bindings != null)
{
foreach (var binding in bindings)
{
if (ev.Handled)
{
break;
}
binding.TryHandle(ev);
}
}
currentHandler = currentHandler.VisualParent;
}
element.RaiseEvent(ev);
e.Handled = ev.Handled;
break;
}
}
if (e is RawTextInputEventArgs text)
{
var ev = new TextInputEventArgs()
{
Device = this,
Text = text.Text,
Source = element,
RoutedEvent = InputElement.TextInputEvent
};
element.RaiseEvent(ev);
e.Handled = ev.Handled;
}
}
/// <summary>
/// Called before the <see cref="TextInput"/> event occurs.
/// </summary>
/// <param name="e">The event args.</param>
protected virtual void OnTextInput(TextInputEventArgs e)
{
}
/// <summary>
/// Handles a key being pressed in the menu.
/// </summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event args.</param>
protected virtual void OnTextInput(object sender, TextInputEventArgs e)
{
if (!string.IsNullOrWhiteSpace(e.Text))
{
var text = e.Text.ToUpper();
var focus = _registered
.FirstOrDefault(x => x.Item1 == text && x.Item2.IsEffectivelyVisible)?.Item2;
focus?.RaiseEvent(new RoutedEventArgs(AccessKeyHandler.AccessKeyPressedEvent));
e.Handled = true;
}
}
