From a04021d38b1f645487b5f39bcc363ea9138ede94 Mon Sep 17 00:00:00 2001
From: James Fu <james.fu@hp.com>
Date: Wed, 21 Sep 2022 18:01:58 +0800
Subject: [PATCH] Send resize on window state change

---
 client/X11/xf_disp.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/client/X11/xf_disp.c b/client/X11/xf_disp.c
index 7ec2ed751..05f76091c 100644
--- a/client/X11/xf_disp.c
+++ b/client/X11/xf_disp.c
@@ -270,6 +270,23 @@ static void xf_disp_OnTimer(void* context, const TimerEventArgs* e)
 	xf_disp_sendResize(xfDisp);
 }
 
+static void xf_disp_OnWindowStateChange(void* context, const WindowStateChangeEventArgs* e)
+{
+	xfContext* xfc;
+	xfDispContext* xfDisp;
+	rdpSettings* settings;
+
+	WINPR_UNUSED(e);
+
+	if (!xf_disp_check_context(context, &xfc, &xfDisp, &settings))
+		return;
+
+	if (!xfDisp->activated || !xfc->fullscreen)
+		return;
+
+	xf_disp_sendResize(xfDisp);
+}
+
 xfDispContext* xf_disp_new(xfContext* xfc)
 {
 	xfDispContext* ret;
@@ -303,6 +320,7 @@ xfDispContext* xf_disp_new(xfContext* xfc)
 	PubSub_SubscribeActivated(pubSub, xf_disp_OnActivated);
 	PubSub_SubscribeGraphicsReset(pubSub, xf_disp_OnGraphicsReset);
 	PubSub_SubscribeTimer(pubSub, xf_disp_OnTimer);
+	PubSub_SubscribeWindowStateChange(pubSub, xf_disp_OnWindowStateChange);
 	return ret;
 }
 
@@ -317,6 +335,7 @@ void xf_disp_free(xfDispContext* disp)
 		PubSub_UnsubscribeActivated(pubSub, xf_disp_OnActivated);
 		PubSub_UnsubscribeGraphicsReset(pubSub, xf_disp_OnGraphicsReset);
 		PubSub_UnsubscribeTimer(pubSub, xf_disp_OnTimer);
+		PubSub_UnsubscribeWindowStateChange(pubSub, xf_disp_OnWindowStateChange);
 	}
 
 	free(disp);