// The following two methods are backward compatible (10.7)
public static CGPoint ConvertPointFromScreenSafe(this NSWindow window, CGPoint point)
{
return(window.ConvertRectFromScreen(new CGRect(point, CGSize.Empty)).Location);
}
public virtual NSObject GetAccessibilityHitTest(CGPoint pointOnScreen)
{
var gdkWindow = parent.GdkWindow;
if (gdkWindow == null)
{
return(this);
}
var ptr = gdk_quartz_window_get_nswindow(gdkWindow.Handle);
if (ptr == IntPtr.Zero)
{
return(this);
}
NSWindow nsWin = Runtime.GetNSObject <NSWindow> (ptr);
CGRect screenRect = new CGRect(pointOnScreen.X, pointOnScreen.Y, 1, 1);
CGRect windowRect = nsWin.ConvertRectFromScreen(screenRect);
CGPoint pointInWindow = new CGPoint(windowRect.X, windowRect.Y);
// Flip the y coords to Gtk origin
nfloat halfWindowHeight = nsWin.ContentView.Frame.Height / 2;
nfloat dy = pointInWindow.Y - halfWindowHeight;
CGPoint pointInGtkWindow = new CGPoint(pointInWindow.X, halfWindowHeight - dy);
int parentInWindowX, parentInWindowY;
GetCoordsInWindow(parent, out parentInWindowX, out parentInWindowY);
if (AccessibilityChildren == null)
{
return(this);
}
foreach (var o in AccessibilityChildren)
{
var proxy = o as RealAccessibilityElementProxy;
if (proxy == null)
{
throw new Exception($"Unsupported type {o.GetType ()} inside AccessibilityElementProxy");
}
if (proxy.AccessibilityHidden)
{
continue;
}
var frameInRealParent = proxy.realFrame;
if (frameInRealParent.X + parentInWindowX < pointInGtkWindow.X &&
frameInRealParent.X + parentInWindowX + frameInRealParent.Width >= pointInGtkWindow.X &&
frameInRealParent.Y + parentInWindowY < pointInGtkWindow.Y &&
frameInRealParent.Y + parentInWindowY + frameInRealParent.Height >= pointInGtkWindow.Y)
{
return(proxy.GetAccessibilityHitTest(pointOnScreen));
}
}
return(this);
}