private void Button_MouseLeave(object sender, MouseEventArgs args) {
if (clicking) {
if (pressed) {
pressed = false;
Invalidate();
}
}
}
private void Button_MouseEnter(object sender, MouseEventArgs args) {
if (clicking) {
if (!pressed) {
pressed = true;
Invalidate();
}
}
}
/// <summary>
/// Обработчик отвечает за вывод на передний план неактивных окон, на которые нажали мышкой,
/// и за обработку мыши, когда имеется модальное окно - в этом случае обработчик не пропускает
/// события, которые идут мимо модального окна, дальше по дереву (Tunneling) - устанавливая
/// Handled в True, либо закрывает модальное окно, если оно было показано с флагом
/// OutsideClickClosesWindow.
/// eventType = 0 - PreviewMouseDown
/// eventType = 1 - PreviewMouseUp
/// eventType = 2 - PreviewMouseMove
/// </summary>
private void onPreviewMouseEvents(MouseEventArgs args, int eventType) {
bool handle = false;
check:
if ( isTopWindowModal( ) ) {
Window modalWindow = ( Window ) Children[ Children.Count - 1 ];
Window windowClicked = VisualTreeHelper.FindClosestParent<Window>((Control)args.Source);
if ( windowClicked != modalWindow ) {
if ( windowInfos[ modalWindow ].OutsideClickClosesWindow
&& (eventType == 0 || eventType == 2 && args.LeftButton == MouseButtonState.Pressed) ) {
// закрываем текущее модальное окно
CloseWindow( modalWindow );
// далее обрабатываем событие как обычно
handle = true;
// Если дальше снова модальное окно, проверку нужно повторить, и закрыть
// его тоже, и так далее. Можно отрефакторить как вызов подпрограммы
// вида while (closeTopModalWindowIfNeed()) ;
goto check;
} else {
// прекращаем распространение события (правда, контролы, подписавшиеся с флагом
// handledEventsToo, получат его в любом случае) и генерацию соответствующего
// парного не-preview события
args.Handled = true;
}
}
} else {
handle = true;
}
if (handle && (eventType == 0 || eventType == 2 && args.LeftButton == MouseButtonState.Pressed)) {
Window windowClicked = VisualTreeHelper.FindClosestParent< Window >( ( Control ) args.Source );
if ( null != windowClicked ) {
activateWindow( windowClicked );
} else {
Menu menu = VisualTreeHelper.FindClosestParent< Menu >( ( Control ) args.Source );
if ( null != menu ) {
activateMenu( );
}
}
}
}
private void onPreviewMouseUp(object sender, MouseEventArgs args) {
onPreviewMouseEvents(args, 1);
}
private void onPreviewMouseDown(object sender, MouseEventArgs args) {
onPreviewMouseEvents(args, 0);
}
private void onPreviewMouseMove(object sender, MouseEventArgs args) {
onPreviewMouseEvents(args, 2);
}
private bool processRoutedEvent(RoutedEvent routedEvent, RoutedEventArgs args) {
//
List<RoutedEventTargetInfo> subscribedTargets = getTargetsSubscribedTo(routedEvent);
Control capturingControl = inputCaptureStack.Count != 0 ? inputCaptureStack.Peek() : null;
//
if (routedEvent.RoutingStrategy == RoutingStrategy.Direct) {
if (null == subscribedTargets)
return false;
//
RoutedEventTargetInfo targetInfo =
subscribedTargets.FirstOrDefault(info => info.target == args.Source);
if (null == targetInfo)
return false;
// если имеется контрол, захватывающий события, события получает только он сам
// и его дочерние контролы
if ( capturingControl != null ) {
if ( !(args.Source is Control) ) return false;
if ( !isControlAllowedToReceiveEvents( ( Control ) args.Source, capturingControl ) )
return false;
}
// copy handlersList to local list to avoid modifications when enumerating
foreach (DelegateInfo delegateInfo in new List< DelegateInfo >(targetInfo.handlersList)) {
if (!args.Handled || delegateInfo.handledEventsToo) {
if (delegateInfo.@delegate is RoutedEventHandler) {
((RoutedEventHandler) delegateInfo.@delegate).Invoke(targetInfo.target, args);
} else {
[email protected](targetInfo.target, args);
}
}
}
}
Control source = (Control) args.Source;
// path to source from root element down to Source
List<Control> path = new List<Control>();
Control current = source;
while (null != current) {
// та же логика с контролом, захватившим обработку сообщений
// если имеется контрол, захватывающий события, события получает только он сам
// и его дочерние контролы
if ( capturingControl == null || isControlAllowedToReceiveEvents( current, capturingControl ) ) {
path.Insert( 0, current );
current = current.Parent;
} else {
break;
}
}
if (routedEvent.RoutingStrategy == RoutingStrategy.Tunnel) {
if (subscribedTargets != null) {
foreach (Control potentialTarget in path) {
Control target = potentialTarget;
RoutedEventTargetInfo targetInfo =
subscribedTargets.FirstOrDefault(info => info.target == target);
if (null != targetInfo) {
foreach (DelegateInfo delegateInfo in new List< DelegateInfo >(targetInfo.handlersList)) {
if (!args.Handled || delegateInfo.handledEventsToo) {
if (delegateInfo.@delegate is RoutedEventHandler) {
((RoutedEventHandler) delegateInfo.@delegate).Invoke(target, args);
} else {
[email protected](target, args);
}
}
}
}
}
}
// для парных Preview-событий запускаем соответствующие настоящие события,
// сохраняя при этом Handled (если Preview событие помечено как Handled=true,
// то и настоящее событие будет маршрутизировано с Handled=true)
if (routedEvent == Control.PreviewMouseDownEvent) {
MouseButtonEventArgs mouseArgs = ( ( MouseButtonEventArgs ) args );
MouseButtonEventArgs argsNew = new MouseButtonEventArgs(
args.Source, Control.MouseDownEvent, mouseArgs.RawPosition,
mouseArgs.LeftButton, mouseArgs.MiddleButton, mouseArgs.RightButton,
mouseArgs.ChangedButton
);
argsNew.Handled = args.Handled;
eventsQueue.Enqueue(argsNew);
}
if (routedEvent == Control.PreviewMouseUpEvent) {
MouseButtonEventArgs mouseArgs = ( ( MouseButtonEventArgs ) args );
MouseButtonEventArgs argsNew = new MouseButtonEventArgs(
args.Source, Control.MouseUpEvent, mouseArgs.RawPosition,
mouseArgs.LeftButton, mouseArgs.MiddleButton, mouseArgs.RightButton,
mouseArgs.ChangedButton
);
argsNew.Handled = args.Handled;
eventsQueue.Enqueue(argsNew);
}
if (routedEvent == Control.PreviewMouseMoveEvent) {
MouseEventArgs mouseArgs = ( ( MouseEventArgs ) args );
MouseEventArgs argsNew = new MouseEventArgs(
args.Source, Control.MouseMoveEvent, mouseArgs.RawPosition,
mouseArgs.LeftButton, mouseArgs.MiddleButton, mouseArgs.RightButton
);
argsNew.Handled = args.Handled;
eventsQueue.Enqueue(argsNew);
}
if ( routedEvent == Control.PreviewMouseWheelEvent ) {
MouseWheelEventArgs oldArgs = ((MouseWheelEventArgs)args);
MouseEventArgs argsNew = new MouseWheelEventArgs(
args.Source, Control.MouseWheelEvent, oldArgs.RawPosition,
oldArgs.LeftButton, oldArgs.MiddleButton, oldArgs.RightButton,
oldArgs.Delta
);
argsNew.Handled = args.Handled;
eventsQueue.Enqueue(argsNew);
}
if (routedEvent == Control.PreviewKeyDownEvent) {
KeyEventArgs argsNew = new KeyEventArgs(args.Source, Control.KeyDownEvent);
KeyEventArgs keyEventArgs = ( ( KeyEventArgs ) args );
argsNew.UnicodeChar = keyEventArgs.UnicodeChar;
argsNew.bKeyDown = keyEventArgs.bKeyDown;
argsNew.dwControlKeyState = keyEventArgs.dwControlKeyState;
argsNew.wRepeatCount = keyEventArgs.wRepeatCount;
argsNew.wVirtualKeyCode = keyEventArgs.wVirtualKeyCode;
argsNew.wVirtualScanCode = keyEventArgs.wVirtualScanCode;
argsNew.Handled = args.Handled;
eventsQueue.Enqueue(argsNew);
}
if (routedEvent == Control.PreviewKeyUpEvent) {
KeyEventArgs argsNew = new KeyEventArgs(args.Source, Control.KeyUpEvent);
KeyEventArgs keyEventArgs = ( ( KeyEventArgs ) args );
argsNew.UnicodeChar = keyEventArgs.UnicodeChar;
argsNew.bKeyDown = keyEventArgs.bKeyDown;
argsNew.dwControlKeyState = keyEventArgs.dwControlKeyState;
argsNew.wRepeatCount = keyEventArgs.wRepeatCount;
argsNew.wVirtualKeyCode = keyEventArgs.wVirtualKeyCode;
argsNew.wVirtualScanCode = keyEventArgs.wVirtualScanCode;
argsNew.Handled = args.Handled;
eventsQueue.Enqueue(argsNew);
}
}
if (routedEvent.RoutingStrategy == RoutingStrategy.Bubble) {
if (subscribedTargets != null) {
for (int i = path.Count - 1; i >= 0; i--) {
Control target = path[i];
RoutedEventTargetInfo targetInfo =
subscribedTargets.FirstOrDefault(info => info.target == target);
if (null != targetInfo) {
//
foreach (DelegateInfo delegateInfo in new List< DelegateInfo >(targetInfo.handlersList)) {
if (!args.Handled || delegateInfo.handledEventsToo) {
if (delegateInfo.@delegate is RoutedEventHandler) {
((RoutedEventHandler) delegateInfo.@delegate).Invoke(target, args);
} else {
[email protected](target, args);
}
}
}
}
}
}
}
return args.Handled;
}
public void ParseInputEvent(INPUT_RECORD inputRecord, Control rootElement) {
if (inputRecord.EventType == EventType.MOUSE_EVENT) {
MOUSE_EVENT_RECORD mouseEvent = inputRecord.MouseEvent;
if (mouseEvent.dwEventFlags != MouseEventFlags.PRESSED_OR_RELEASED &&
mouseEvent.dwEventFlags != MouseEventFlags.MOUSE_MOVED &&
mouseEvent.dwEventFlags != MouseEventFlags.DOUBLE_CLICK &&
mouseEvent.dwEventFlags != MouseEventFlags.MOUSE_WHEELED &&
mouseEvent.dwEventFlags != MouseEventFlags.MOUSE_HWHEELED) {
//
throw new InvalidOperationException("Flags combination in mouse event was not expected.");
}
Point rawPosition;
if (mouseEvent.dwEventFlags == MouseEventFlags.MOUSE_MOVED ||
mouseEvent.dwEventFlags == MouseEventFlags.PRESSED_OR_RELEASED) {
rawPosition = new Point(mouseEvent.dwMousePosition.X, mouseEvent.dwMousePosition.Y);
lastMousePosition = rawPosition;
} else {
// При событии MOUSE_WHEELED в Windows некорректно устанавливается mouseEvent.dwMousePosition
// Поэтому для определения элемента, над которым производится прокручивание колёсика, мы
// вынуждены сохранять координаты, полученные при предыдущем событии мыши
rawPosition = lastMousePosition;
}
Control topMost = findSource(rawPosition, rootElement);
// если мышь захвачена контролом, то события перемещения мыши доставляются только ему,
// события, связанные с нажатием мыши - тоже доставляются только ему, вместо того
// контрола, над которым событие было зарегистрировано. Такой механизм необходим,
// например, для корректной обработки перемещений окон (вверх или в стороны)
Control source = (inputCaptureStack.Count != 0) ? inputCaptureStack.Peek() : topMost;
if (mouseEvent.dwEventFlags == MouseEventFlags.MOUSE_MOVED) {
MouseButtonState leftMouseButtonState = getLeftButtonState(mouseEvent.dwButtonState);
MouseButtonState middleMouseButtonState = getMiddleButtonState(mouseEvent.dwButtonState);
MouseButtonState rightMouseButtonState = getRightButtonState(mouseEvent.dwButtonState);
//
MouseEventArgs mouseEventArgs = new MouseEventArgs(source, Control.PreviewMouseMoveEvent,
rawPosition,
leftMouseButtonState,
middleMouseButtonState,
rightMouseButtonState
);
eventsQueue.Enqueue(mouseEventArgs);
//
lastLeftMouseButtonState = leftMouseButtonState;
lastMiddleMouseButtonState = middleMouseButtonState;
lastRightMouseButtonState = rightMouseButtonState;
// detect mouse enter / mouse leave events
// path to source from root element down
List<Control> mouseOverStack = new List<Control>();
Control current = topMost;
while (null != current) {
mouseOverStack.Insert(0, current);
current = current.Parent;
}
int index;
for (index = 0; index < Math.Min(mouseOverStack.Count, prevMouseOverStack.Count); index++) {
if (mouseOverStack[index] != prevMouseOverStack[index])
break;
}
for (int i = prevMouseOverStack.Count - 1; i >= index; i-- ) {
Control control = prevMouseOverStack[i];
MouseEventArgs args = new MouseEventArgs(control, Control.MouseLeaveEvent,
rawPosition,
leftMouseButtonState,
middleMouseButtonState,
rightMouseButtonState
);
eventsQueue.Enqueue(args);
}
for (int i = index; i < mouseOverStack.Count; i++ ) {
// enqueue MouseEnter event
Control control = mouseOverStack[i];
MouseEventArgs args = new MouseEventArgs(control, Control.MouseEnterEvent,
rawPosition,
leftMouseButtonState,
middleMouseButtonState,
rightMouseButtonState
);
eventsQueue.Enqueue(args);
}
prevMouseOverStack.Clear();
prevMouseOverStack.AddRange(mouseOverStack);
}
if (mouseEvent.dwEventFlags == MouseEventFlags.PRESSED_OR_RELEASED) {
//
MouseButtonState leftMouseButtonState = getLeftButtonState(mouseEvent.dwButtonState);
MouseButtonState middleMouseButtonState = getMiddleButtonState(mouseEvent.dwButtonState);
MouseButtonState rightMouseButtonState = getRightButtonState(mouseEvent.dwButtonState);
//
if (leftMouseButtonState != lastLeftMouseButtonState) {
MouseButtonEventArgs eventArgs = new MouseButtonEventArgs(source,
leftMouseButtonState == MouseButtonState.Pressed ? Control.PreviewMouseDownEvent : Control.PreviewMouseUpEvent,
rawPosition,
leftMouseButtonState,
lastMiddleMouseButtonState,
lastRightMouseButtonState,
MouseButton.Left
);
eventsQueue.Enqueue(eventArgs);
}
if (middleMouseButtonState != lastMiddleMouseButtonState) {
MouseButtonEventArgs eventArgs = new MouseButtonEventArgs(source,
middleMouseButtonState == MouseButtonState.Pressed ? Control.PreviewMouseDownEvent : Control.PreviewMouseUpEvent,
rawPosition,
lastLeftMouseButtonState,
middleMouseButtonState,
lastRightMouseButtonState,
MouseButton.Middle
);
eventsQueue.Enqueue(eventArgs);
}
if (rightMouseButtonState != lastRightMouseButtonState) {
MouseButtonEventArgs eventArgs = new MouseButtonEventArgs(source,
rightMouseButtonState == MouseButtonState.Pressed ? Control.PreviewMouseDownEvent : Control.PreviewMouseUpEvent,
rawPosition,
lastLeftMouseButtonState,
lastMiddleMouseButtonState,
rightMouseButtonState,
MouseButton.Right
);
eventsQueue.Enqueue(eventArgs);
}
//
lastLeftMouseButtonState = leftMouseButtonState;
lastMiddleMouseButtonState = middleMouseButtonState;
lastRightMouseButtonState = rightMouseButtonState;
}
if (mouseEvent.dwEventFlags == MouseEventFlags.MOUSE_WHEELED) {
MouseWheelEventArgs args = new MouseWheelEventArgs(
topMost,
Control.PreviewMouseWheelEvent,
rawPosition,
lastLeftMouseButtonState, lastMiddleMouseButtonState,
lastRightMouseButtonState,
mouseEvent.dwButtonState > 0 ? 1 : -1
);
eventsQueue.Enqueue( args );
}
}
if (inputRecord.EventType == EventType.KEY_EVENT) {
KEY_EVENT_RECORD keyEvent = inputRecord.KeyEvent;
KeyEventArgs eventArgs = new KeyEventArgs(
ConsoleApplication.Instance.FocusManager.FocusedElement,
keyEvent.bKeyDown ? Control.PreviewKeyDownEvent : Control.PreviewKeyUpEvent);
eventArgs.UnicodeChar = keyEvent.UnicodeChar;
eventArgs.bKeyDown = keyEvent.bKeyDown;
eventArgs.dwControlKeyState = keyEvent.dwControlKeyState;
eventArgs.wRepeatCount = keyEvent.wRepeatCount;
eventArgs.wVirtualKeyCode = keyEvent.wVirtualKeyCode;
eventArgs.wVirtualScanCode = keyEvent.wVirtualScanCode;
eventsQueue.Enqueue(eventArgs);
}
}
private void onPreviewMouseDown( object sender, MouseEventArgs e ) {
PassFocusToChildUnderPoint( e );
}
private void onPreviewMouseMove( object sender, MouseEventArgs args ) {
if ( args.LeftButton == MouseButtonState.Pressed ) {
onPreviewMouseDown( sender, args );
}
}
private void onPanelMouseMove( object sender, MouseEventArgs e ) {
if ( e.LeftButton == MouseButtonState.Pressed ) {
PassFocusToChildUnderPoint( e );
}
}
private void onMouseDown( object sender, MouseEventArgs args ) {
if (!disabled)
openMenu( );
args.Handled = true;
}
private void onMouseMove( object sender, MouseEventArgs args ) {
// Mouse move opens the submenus only in root level
if ( !disabled && args.LeftButton == MouseButtonState.Pressed /*&& Parent.Parent is Menu*/ ) {
openMenu( );
}
args.Handled = true;
}
private void onMouseUp( object sender, MouseEventArgs args ) {
if ( Type == MenuItemType.Item ) {
RaiseClick( );
args.Handled = true;
}
}
public void Window_OnMouseMove(object sender, MouseEventArgs args) {
if (closing) {
Point point = args.GetPosition(this);
bool anyChanged = false;
if (point.x == 3 && point.y == 0) {
if (!showClosingGlyph) {
showClosingGlyph = true;
anyChanged = true;
}
} else {
if (showClosingGlyph) {
showClosingGlyph = false;
anyChanged = true;
}
}
if (anyChanged)
Invalidate();
args.Handled = true;
}
if (moving) {
Point parentPoint = args.GetPosition(getWindowsHost());
Vector vector = new Vector(parentPoint.X - movingStartPoint.x, parentPoint.Y - movingStartPoint.y);
X = movingStartX + vector.X;
Y = movingStartY + vector.Y;
getWindowsHost().Invalidate();
args.Handled = true;
}
if (resizing) {
Point parentPoint = args.GetPosition(getWindowsHost());
int deltaWidth = parentPoint.X - resizingStartPoint.x;
int deltaHeight = parentPoint.Y - resizingStartPoint.y;
int width = resizingStartWidth + deltaWidth;
int height = resizingStartHeight + deltaHeight;
bool anyChanged = false;
if (width >= 4) {
this.Width = width;
anyChanged = true;
}
if (height >= 3) {
this.Height = height;
anyChanged = true;
}
if (anyChanged)
Invalidate();
args.Handled = true;
}
}
private void OnMouseMove( object sender, MouseEventArgs args )
{
if ( args.LeftButton == MouseButtonState.Pressed ) {
int index = args.GetPosition( this ).Y;
if ( !disabledItemsIndexes.Contains(index) && SelectedItemIndex != index ) {
SelectedItemIndex = index;
Invalidate( );
}
}
args.Handled = true;
}
