From 1f799495e4aa89be5f32e3fcda8da342f3057f3c Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Tue, 14 Jan 2020 19:43:32 -0500
Subject: devdraw: notify window resize promptly on x11

Fixes #339.
---
 src/cmd/devdraw/srv.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'src/cmd/devdraw/srv.c')

diff --git a/src/cmd/devdraw/srv.c b/src/cmd/devdraw/srv.c
index bfeb7c38..c98a865f 100644
--- a/src/cmd/devdraw/srv.c
+++ b/src/cmd/devdraw/srv.c
@@ -394,12 +394,30 @@ matchmouse(Client *c)
 	}
 }
 
+void
+gfx_mouseresized(Client *c)
+{
+	gfx_mousetrack(c, -1, -1, -1, -1);
+}
+
 void
 gfx_mousetrack(Client *c, int x, int y, int b, uint ms)
 {
 	Mouse *m;
 
 	qlock(&c->eventlk);
+	if(x == -1 && y == -1 && b == -1 && ms == -1) {
+		Mouse *copy;
+		// repeat last mouse event for resize
+		if(c->mouse.ri == 0)
+			copy = &c->mouse.m[nelem(c->mouse.m)-1];
+		else
+			copy = &c->mouse.m[c->mouse.ri-1];
+		x = copy->xy.x;
+		y = copy->xy.y;
+		b = copy->buttons;
+		ms = copy->msec;
+	}
 	if(x < c->mouserect.min.x)
 		x = c->mouserect.min.x;
 	if(x > c->mouserect.max.x)
-- 
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