/// <devdoc>
/// WM_SETFOCUS handler
/// </devdoc>
/// <internalonly/>
private void WmSetFocus(ref Message m)
{
if (!HostedInWin32DialogManager)
{
if (ActiveControl != null)
{
ImeSetFocus();
// REGISB: Do not raise GotFocus event since the focus
// is given to the visible ActiveControl
if (!ActiveControl.Visible)
{
OnGotFocus(EventArgs.Empty);
}
FocusActiveControlInternal();
}
else
{
if (ParentInternal != null)
{
IContainerControl c = ParentInternal.GetContainerControlInternal();
if (c != null)
{
bool succeeded = false;
ContainerControl knowncontainer = c as ContainerControl;
if (knowncontainer != null)
{
succeeded = knowncontainer.ActivateControlInternal(this);
}
else
{
// SECREVIEW : Taking focus and activating a control is response
// : to a user gesture (WM_SETFOCUS) is OK.
//
IntSecurity.ModifyFocus.Assert();
try {
succeeded = c.ActivateControl(this);
}
finally {
CodeAccessPermission.RevertAssert();
}
}
if (!succeeded)
{
return;
}
}
}
base.WndProc(ref m);
}
}
else
{
base.WndProc(ref m);
}
}
protected override void OnGotFocus(EventArgs e)
{
if (ActiveControl != null)
{
if (!ActiveControl.Visible)
{
base.OnGotFocus(EventArgs.Empty);
}
SetFocus(activeControl);
return;
}
if (Parent != null)
{
IContainerControl container = Parent.GetContainerControl();
if (container != null)
{
if (!container.ActivateControl(this))
{
return;
}
}
}
base.OnGotFocus(e);
}