/// <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.WebBrowserFocus != null))
{
_browser.WebBrowserFocus.Deactivate();
}
_entered = false;
base.OnLeave(e);
#if __MonoCS__
Action EnsureXInputFocusIsRemovedFromReceivedWinFormsControl = () =>
{
var control = Control.FromHandle(NativeReplacements.MonoGetFocus());
if (control is 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
}
/// <summary>
/// Set WM_CLASS property
/// </summary>
/// <remarks>You should call this method after you opened your main form so that the
/// icon in the launcher and the app menu will show the correct name/icon when running
/// on Ubuntu 18.04. The <paramref name="name"/> should match the name of the
/// application/launcher used to start the application, e.g. fieldworks-flex.</remarks>
public static void SetWmClass(string name, string @class, IntPtr handle)
{
if (!Platform.IsLinux)
{
return;
}
var classHint = new XClassHint {
res_name = Marshal.StringToCoTaskMemAnsi(name),
res_class = Marshal.StringToCoTaskMemAnsi(@class)
};
var classHints = Marshal.AllocCoTaskMem(Marshal.SizeOf(classHint));
Marshal.StructureToPtr(classHint, classHints, true);
XSetClassHint(NativeReplacements.MonoGetDisplayHandle(),
NativeReplacements.MonoGetX11Window(handle), classHints);
Marshal.FreeCoTaskMem(classHint.res_name);
Marshal.FreeCoTaskMem(classHint.res_class);
Marshal.FreeCoTaskMem(classHints);
}
