/// <summary>
/// Set InputFocus to a WinForm controls using Mono winforms connection to the X11 server.
/// GeckoWebBrowser.RemoveInputFocus uses the Gecko/Gtk connection to the X11 server.
/// The undoes the call to _browser.SetInputFocus.
/// Call this method when a winform control has gained focus, and X11 Input focus is still on the Gecko control.
/// </summary>
protected static void MoveInputFocusBackToAWinFormsControl()
{
#if __MonoCS__
IntPtr newTargetHandle = NativeReplacements.MonoGetFocus();
IntPtr displayHandle = NativeReplacements.MonoGetDisplayHandle();
// Remove the Focus from a Gtk window back to a mono winform X11 window.
NativeX11Methods.XSetInputFocus(displayHandle, NativeReplacements.MonoGetX11Window(newTargetHandle), NativeX11Methods.RevertTo.None, IntPtr.Zero);
#endif
}
protected override void OnLeave(EventArgs e)
{
if (_browser != null)
{
_browser.RemoveInputFocus();
if (_browser.WebBrowserFocus != null)
{
_browser.WebBrowserFocus.Deactivate();
}
}
_entered = false;
base.OnLeave(e);
#if __MonoCS__
Action EnsureXInputFocusIsRemovedFromReceivedWinFormsControl = () =>
{
var control = Control.FromHandle(NativeReplacements.MonoGetFocus());
var controlName = control.GetType().FullName;
if (controlName == "Gecko.GeckoWebBrowser")
{
return;
}
MoveInputFocusBackToAWinFormsControl();
// Setting the ActiveControl ensure a Focus event occurs on the control focus is moving to.
// And this allows us to call RemoveinputFocus at the neccessary time.
// This prevents keypress still going to the gecko controls when a winform TextBox has focus
// and the mouse is over a gecko control.
Form.ActiveForm.ActiveControl = control;
EventHandler focusEvent = null;
// Attach a execute once only focus handler to the Non GeckoWebBrowser control focus is moving too...
focusEvent = (object sender, EventArgs eventArg) =>
{
control.GotFocus -= focusEvent;
MoveInputFocusBackToAWinFormsControl();
};
control.GotFocus += focusEvent;
};
ProgressUtils.InvokeLaterOnUIThread(() => EnsureXInputFocusIsRemovedFromReceivedWinFormsControl());
#endif
}
