From 34eb57979b5293ac3b864310f8fc8c77c26343e2 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Fri, 2 Sep 2022 00:35:30 +0200
Subject: [PATCH] Fix "escape" from dual screen mode, on Linux at least
 (#2183).

This is a bit of a strange solution but the only one that I could make
work; the key seems to be setting focus on the child window of the frame.
---
 src/tools/dcpomatic_player.cc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/tools/dcpomatic_player.cc b/src/tools/dcpomatic_player.cc
index 7603b9842..043e90b9e 100644
--- a/src/tools/dcpomatic_player.cc
+++ b/src/tools/dcpomatic_player.cc
@@ -804,6 +804,7 @@ private:
 			_dual_screen->SetBackgroundColour (wxColour(0, 0, 0));
 			_dual_screen->ShowFullScreen (true);
 			_viewer->panel()->Reparent (_dual_screen);
+			_viewer->panel()->SetFocus();
 			_dual_screen->Show ();
 			if (wxDisplay::GetCount() > 1) {
 				switch (Config::instance()->image_display()) {
@@ -818,6 +819,7 @@ private:
 					break;
 				}
 			}
+			_dual_screen->Bind(wxEVT_CHAR_HOOK, boost::bind(&DOMFrame::dual_screen_key_press, this, _1));
 		} else {
 			if (_dual_screen) {
 				_viewer->panel()->Reparent (_overall_panel);
@@ -829,6 +831,17 @@ private:
 		setup_main_sizer (_mode);
 	}
 
+	void dual_screen_key_press(wxKeyEvent& ev)
+	{
+		if (ev.GetKeyCode() == WXK_F11) {
+			if (ev.ShiftDown()) {
+				view_dual_screen();
+			} else if (!ev.HasAnyModifiers()) {
+				view_full_screen();
+			}
+		}
+	}
+
 	void view_closed_captions ()
 	{
 		_viewer->show_closed_captions ();
-- 
2.30.2