protected virtual bool PreprocessScrollWheel(NSEvent e)
{
var view = (ContentView.Superview ?? ContentView).HitTest(e.LocationInWindow);
if (view != null && !view.IsSwfControl() && Control.FromChildHandle(view.Handle) is Control control)
{
// This is to allow SWF wrappers of native views to handle messages before the native view swallows them (WebView, for example).
var p = driver.NativeToMonoScreen(this.ConvertPointToScreenSafe(e.LocationInWindow));
if (Math.Abs(e.ScrollingDeltaY - nfloat.Epsilon) > 0)
{
var delta = e.ScaledAndQuantizedDeltaY();
var wParam = (IntPtr)(((int)e.ModifiersToWParam() & 0xFFFF) | (delta << 16));
var lParam = (IntPtr)((p.X & 0xFFFF) | (p.Y << 16));
var msg = new MSG {
hwnd = control.Handle, message = Msg.WM_MOUSEWHEEL, wParam = wParam, lParam = lParam
};
if (Application.SendMessage(ref msg, out var drop, out var _).ToInt32() == 0 || drop)
{
return(true);
}
}
if (Math.Abs(e.ScrollingDeltaX - nfloat.Epsilon) > 0)
{
int delta = e.ScaledAndQuantizedDeltaX();
var wParam = (IntPtr)(((int)e.ModifiersToWParam() & 0xFFFF) | (delta << 16));
var lParam = (IntPtr)((p.X & 0xFFFF) | (p.Y << 16));
var msg = new MSG {
hwnd = control.Handle, message = Msg.WM_MOUSEHWHEEL, wParam = wParam, lParam = lParam
};
if (Application.SendMessage(ref msg, out var drop, out var _).ToInt32() == 0 || drop)
{
return(true);
}
}
}
return(false);
}
public override void ScrollWheel(NSEvent e)
{
var msg = TranslateMouseCore(e, out bool _);
if (Math.Abs(e.ScrollingDeltaY - nfloat.Epsilon) > 0)
{
int delta = ScaleAndQuantizeDelta((float)e.ScrollingDeltaY, e.HasPreciseScrollingDeltas);
msg.message = Msg.WM_MOUSEWHEEL;
msg.wParam = (IntPtr)(((int)e.ModifiersToWParam() & 0xFFFF) | (delta << 16));
msg.lParam = (IntPtr)((msg.pt.x & 0xFFFF) | (msg.pt.y << 16));
Application.SendMessage(ref msg);
}
if (Math.Abs(e.ScrollingDeltaX - nfloat.Epsilon) > 0)
{
int delta = ScaleAndQuantizeDelta((float)-e.ScrollingDeltaX, e.HasPreciseScrollingDeltas);
msg.message = Msg.WM_MOUSEHWHEEL;
msg.wParam = (IntPtr)(((int)e.ModifiersToWParam() & 0xFFFF) | (delta << 16));
msg.lParam = (IntPtr)((msg.pt.x & 0xFFFF) | (msg.pt.y << 16));
Application.SendMessage(ref msg);
}
}
public override void ScrollWheel(NSEvent e)
{
var msg = TranslateMouseCore(e, out bool _);
if (e.ScrollingDeltaY != 0)
{
int delta = e.ScaledAndQuantizedDeltaY();
msg.message = Msg.WM_MOUSEWHEEL;
msg.wParam = (IntPtr)(((int)e.ModifiersToWParam() & 0xFFFF) | (delta << 16));
msg.lParam = (IntPtr)((msg.pt.x & 0xFFFF) | (msg.pt.y << 16));
Application.SendMessage(ref msg);
}
if (e.ScrollingDeltaX != 0)
{
int delta = e.ScaledAndQuantizedDeltaX();
msg.message = Msg.WM_MOUSEHWHEEL;
msg.wParam = (IntPtr)(((int)e.ModifiersToWParam() & 0xFFFF) | (delta << 16));
msg.lParam = (IntPtr)((msg.pt.x & 0xFFFF) | (msg.pt.y << 16));
Application.SendMessage(ref msg);
}
}
public override void ScrollWheel(NSEvent e)
{
var msg = TranslateMouseCore(e, out bool _);
bool horizontal = e.ScrollingDeltaY == 0 && e.ScrollingDeltaX != 0;
int delta = ScaleAndQuantizeDelta((float)(horizontal ? -e.ScrollingDeltaX : e.ScrollingDeltaY), e.HasPreciseScrollingDeltas);
if (delta != 0 && e.Phase == NSEventPhase.None && e.MomentumPhase == NSEventPhase.None || e.Phase == NSEventPhase.Changed || e.MomentumPhase == NSEventPhase.Changed)
{
msg.message = horizontal ? Msg.WM_MOUSEHWHEEL : Msg.WM_MOUSEWHEEL;
msg.wParam = (IntPtr)(((int)e.ModifiersToWParam() & 0xFFFF) | (delta << 16));
msg.lParam = (IntPtr)((msg.pt.x & 0xFFFF) | (msg.pt.y << 16));
Application.SendMessage(ref msg);
}
}
internal void TranslateMouseDown(NSEvent e)
{
var msg = TranslateMouseCore(e, out bool client);
msg.wParam = (IntPtr)(e.ModifiersToWParam() | e.ButtonNumberToWParam());
// FIXME: Should be elsewhere
if (e.ClickCount > 1)
{
msg.message = (client ? Msg.WM_LBUTTONDBLCLK : Msg.WM_NCLBUTTONDBLCLK) + MsgOffset4Button(e);
}
else
{
msg.message = (client ? Msg.WM_LBUTTONDOWN : Msg.WM_NCLBUTTONDOWN) + MsgOffset4Button(e);
LastMouseDownMsg = msg;
}
Application.SendMessage(ref msg);
}
internal void TranslateMouseDown(NSEvent e)
{
var msg = TranslateMouseCore(e, out bool client);
msg.wParam = (IntPtr)(e.ModifiersToWParam() | e.ButtonNumberToWParam());
if (e.ClickCount > 1 && (e.ClickCount & 1) == 0 && prevMouseDown?.Type == e.Type)
{
msg.message = (client ? Msg.WM_LBUTTONDBLCLK : Msg.WM_NCLBUTTONDBLCLK) + MsgOffset4Button(e);
}
else
{
msg.message = (client ? Msg.WM_LBUTTONDOWN : Msg.WM_NCLBUTTONDOWN) + MsgOffset4Button(e);
LastMouseDownMsg = msg;
}
prevMouseDown = e;
Application.SendMessage(ref msg);
}
internal void TranslateMouseEnterExit(NSEvent e)
{
// We use overlapping track rectanges on every control, so the Entered/Exited events
// are sent not only to the top-level visible view, but also to its superviews.
// This has to be converted to the the model where only the top-level control receives
// the messages.
//
// The conversion is by performing the hit test. Note that e.LocationInWindow is NOT
// updated by the time the tracking events are received and thus e.Window.
// MouseLocationOutsideOfEventStream has to be used instead.
//
// The Exited event has to be handled the same way as the entered event to cover the
// following scenario:
// ___________________________
// | Panel |
// | ______________ |
// | | Button | |
//
// When you move the mouse over the Button you will receive the Entered event for
// it. At the same time the Panel already had Entered called for its own tracking area.
// Now moving the mouse away from the Button into the Panel area will cause an
// Exited event on the Button's tracking rectangle, but it will NOT generate any
// Entered event. In the System.Windows.Forms world we want to receive WM_MOUSELEAVE
// on the Button and WM_MOUSE_ENTERED on the Panel.
//
// Further reading:
// https://stackoverflow.com/questions/9986267/mouse-enter-exit-events-on-partially-hidden-nsviews
// While dragging, both e.Window and e.WindowNumber relate to the window in which the dragging session started,
// but e.LocationInWindow always contains the location relative to the window under the cursor!
var location = NSEvent.CurrentMouseLocation;
var number = NSWindow.WindowNumberAtPoint(location, 0);
var window = NSApplication.SharedApplication.WindowWithWindowNumber(number) ?? e.Window;
var locationInWindow = window.ConvertPointFromScreenSafe(location);
var msg = TranslateMouseCore(e, out bool client);
var newMouseView = window?.ContentView.HitTest(locationInWindow) ?? window?.ContentView.Superview?.HitTest(locationInWindow);
var newMouseViewHandle = newMouseView is MonoView || newMouseView is IMacNativeControl ? newMouseView.Handle : IntPtr.Zero;
if (newMouseViewHandle == IntPtr.Zero && newMouseView != null)
{
var c = Control.FromChildHandle(newMouseView.Handle);
if (c != null)
{
newMouseViewHandle = c.Handle;
}
}
#if DEBUG_MOUSE_ENTER_EXIT
{
// DEBUG
Console.Write(e.Type == NSEventType.MouseEntered ? "ENTER " : "EXIT ");
if (newMouseView != null)
{
Console.Write("NEW: " + DebugUtility.ControlInfo(newMouseView));
}
else
{
Console.Write("NO NEW");
}
}
#endif
if (newMouseViewHandle == driver.LastEnteredHwnd)
{
return;
}
// Keep track of the last entered window during grab, but don't send messages. The
// messages are sent by XplatUICocoa.GrabWindow and XplatUICocoa.UngrabWindow when
// the grabbing state is entered/exited.
if (driver.Grab.Hwnd != IntPtr.Zero)
{
driver.LastEnteredHwnd = newMouseViewHandle;
return;
}
msg.wParam = (IntPtr)(e.ModifiersToWParam() | Mac.Extensions.ButtonMaskToWParam(NSEvent.CurrentPressedMouseButtons));
// First notify the old window that mouse left it
if (driver.LastEnteredHwnd != IntPtr.Zero)
{
msg.hwnd = driver.LastEnteredHwnd;
msg.message = Msg.WM_MOUSELEAVE;
driver.LastEnteredHwnd = IntPtr.Zero;
Application.SendMessage(ref msg);
}
// And then notify the new window that mouse entered it
if (newMouseViewHandle != IntPtr.Zero)
{
msg.hwnd = newMouseViewHandle;
msg.message = Msg.WM_MOUSE_ENTER;
driver.LastEnteredHwnd = newMouseViewHandle;
Application.SendMessage(ref msg);
}
}
void TranslateMouseEvent(NSEvent e)
{
var clientView = view as IClientView;
bool client = clientView == null;
var nspoint = view.ConvertPointFromView(e.LocationInWindow, null);
var localMonoPoint = driver.NativeToMonoFramed(nspoint, view);
if ((clientView != null && clientView.ClientBounds.ToRectangle().Contains(localMonoPoint)) ||
driver.Grab.Hwnd != IntPtr.Zero)
{
client = true;
localMonoPoint.X -= (int)clientView.ClientBounds.X;
localMonoPoint.Y -= (int)clientView.ClientBounds.Y;
}
MSG msg = new MSG();
msg.hwnd = view.Handle;
msg.lParam = (IntPtr)(localMonoPoint.Y << 16 | (localMonoPoint.X & 0xFFFF));
if (e.Window == null)
{
msg.pt = driver.NativeToMonoScreen(NSEvent.CurrentMouseLocation).ToPOINT();
}
else
{
msg.pt = driver.NativeToMonoScreen(e.Window.ConvertBaseToScreen(e.LocationInWindow)).ToPOINT();
}
msg.refobject = view;
switch (e.Type)
{
case NSEventType.LeftMouseDown:
case NSEventType.RightMouseDown:
case NSEventType.OtherMouseDown:
// FIXME: Should be elsewhere
if (e.ClickCount > 1)
{
msg.message = (client ? Msg.WM_LBUTTONDBLCLK : Msg.WM_NCLBUTTONDBLCLK) + MsgOffset4Button(e);
}
else
{
msg.message = (client ? Msg.WM_LBUTTONDOWN : Msg.WM_NCLBUTTONDOWN) + MsgOffset4Button(e);
}
msg.wParam = (IntPtr)(e.ModifiersToWParam() | e.ButtonNumberToWParam());
break;
case NSEventType.LeftMouseUp:
case NSEventType.RightMouseUp:
case NSEventType.OtherMouseUp:
msg.message = (client ? Msg.WM_LBUTTONUP : Msg.WM_NCLBUTTONUP) + MsgOffset4Button(e);
msg.wParam = (IntPtr)(e.ModifierFlags.ToWParam() | e.ButtonNumberToWParam());
break;
case NSEventType.MouseMoved:
msg.wParam = (IntPtr)(e.ModifierFlags.ToWParam());
msg.message = (client ? Msg.WM_MOUSEMOVE : Msg.WM_NCMOUSEMOVE);
break;
case NSEventType.LeftMouseDragged:
msg.wParam = (IntPtr)(e.ModifierFlags.ToWParam() | (uint)MsgButtons.MK_LBUTTON);
msg.message = (client ? Msg.WM_MOUSEMOVE : Msg.WM_NCMOUSEMOVE);
break;
case NSEventType.RightMouseDragged:
msg.wParam = (IntPtr)(e.ModifierFlags.ToWParam() | (uint)MsgButtons.MK_RBUTTON);
msg.message = (client ? Msg.WM_MOUSEMOVE : Msg.WM_NCMOUSEMOVE);
break;
case NSEventType.OtherMouseDragged:
msg.wParam = (IntPtr)(e.ModifierFlags.ToWParam() | (uint)MsgButtons.MK_MBUTTON);
msg.message = (client ? Msg.WM_MOUSEMOVE : Msg.WM_NCMOUSEMOVE);
break;
case NSEventType.ScrollWheel:
bool horizontal = e.ScrollingDeltaY == 0 && e.ScrollingDeltaX != 0;
int delta = ScaleAndQuantizeDelta((float)(horizontal ? e.ScrollingDeltaX : e.ScrollingDeltaY), e.HasPreciseScrollingDeltas);
if (delta == 0)
{
return;
}
if (e.Phase == NSEventPhase.None && e.MomentumPhase == NSEventPhase.None || e.Phase == NSEventPhase.Changed || e.MomentumPhase == NSEventPhase.Changed)
{
msg.message = Msg.WM_MOUSEWHEEL;
msg.wParam = (IntPtr)(e.ModifiersToWParam());
msg.wParam = (IntPtr)(((int)msg.wParam & 0xFFFF) | (delta << 16));
msg.lParam = (IntPtr)((msg.pt.x & 0xFFFF) | (msg.pt.y << 16));
break;
}
return;
case NSEventType.MouseEntered:
case NSEventType.MouseExited:
// We use overlapping track rectanges on every control, so the Entered/Exited events
// are sent not only to the top-level visible view, but also to its superviews.
// This has to be converted to the the model where only the top-level control receives
// the messages.
//
// The conversion is by performing the hit test. Note that e.LocationInWindow is NOT
// updated by the time the tracking events are received and thus e.Window.
// MouseLocationOutsideOfEventStream has to be used instead.
//
// The Exited event has to be handled the same way as the entered event to cover the
// following scenario:
// ___________________________
// | Panel |
// | ______________ |
// | | Button | |
//
// When you move the mouse over the Button you will receive the Entered event for
// it. At the same time the Panel already had Entered called for its own tracking area.
// Now moving the mouse away from the Button into the Panel area will cause an
// Exited event on the Button's tracking rectangle, but it will NOT generate any
// Entered event. In the System.Windows.Forms world we want to receive WM_MOUSELEAVE
// on the Button and WM_MOUSE_ENTERED on the Panel.
//
// Further reading:
// https://stackoverflow.com/questions/9986267/mouse-enter-exit-events-on-partially-hidden-nsviews
var newMouseView = e.Window?.ContentView.HitTest(e.LocationInWindow) ?? e.Window?.ContentView.Superview?.HitTest(e.LocationInWindow);
var newMouseViewHandle = newMouseView is MonoView ? newMouseView.Handle : IntPtr.Zero;
#if DEBUG_MOUSE_ENTER_EXIT
{
// DEBUG
Console.Write(e.Type == NSEventType.MouseEntered ? "ENTER " : "EXIT ");
if (newMouseView != null)
{
Console.Write("NEW: " + DebugUtility.ControlInfo(newMouseView));
}
else
{
Console.Write("NO NEW");
}
}
#endif
if (newMouseViewHandle == driver.LastEnteredHwnd)
{
return;
}
// Keep track of the last entered window during grab, but don't send messages. The
// messages are sent by XplatUICocoa.GrabWindow and XplatUICocoa.UngrabWindow when
// the grabbing state is entered/exited.
if (driver.Grab.Hwnd != IntPtr.Zero)
{
driver.LastEnteredHwnd = newMouseViewHandle;
return;
}
msg.wParam = (IntPtr)(e.ModifiersToWParam() | Mac.Extensions.ButtonMaskToWParam(NSEvent.CurrentPressedMouseButtons));
// First notify the old window that mouse left it
if (driver.LastEnteredHwnd != IntPtr.Zero)
{
msg.hwnd = driver.LastEnteredHwnd;
msg.message = Msg.WM_MOUSELEAVE;
driver.LastEnteredHwnd = IntPtr.Zero;
Application.SendMessage(ref msg);
}
// And then notify the new window that mouse entered it
if (newMouseViewHandle != IntPtr.Zero)
{
msg.hwnd = newMouseViewHandle;
msg.message = Msg.WM_MOUSE_ENTER;
driver.LastEnteredHwnd = newMouseViewHandle;
Application.SendMessage(ref msg);
}
return;
//case NSEventType.TabletPoint:
//case NSEventType.TabletProximity:
default:
return;
}
Application.SendMessage(ref msg);
}
