From: Po Lu <luangruo@yahoo.com>
Date: Tue, 10 May 2022 06:40:26 +0000 (+0800)
Subject: Handle deletion of opacity property too
X-Git-Tag: emacs-29.0.90~1910^2~851
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=88545428f0962081e776d903e05dd787677b320a;p=emacs.git

Handle deletion of opacity property too

* src/xterm.c (handle_one_xevent): Clear `alpha' frame parameter
when opacity prop is gone or invalid.
---

diff --git a/src/xterm.c b/src/xterm.c
index 5818eb1d02e..c22a901ff4c 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -14856,6 +14856,8 @@ handle_one_xevent (struct x_display_info *dpyinfo,
 	    {
 	      f->alpha[0] = 1.0;
 	      f->alpha[1] = 1.0;
+
+	      store_frame_param (f, Qalpha, Qnil);
 	    }
 	  else
 	    {
@@ -14878,6 +14880,13 @@ handle_one_xevent (struct x_display_info *dpyinfo,
 
 		  store_frame_param (f, Qalpha, make_float (f->alpha[0]));
 		}
+	      else
+		{
+		  f->alpha[0] = 1.0;
+		  f->alpha[1] = 1.0;
+
+		  store_frame_param (f, Qalpha, Qnil);
+		}
 	    }
 
 	  if (tmp_data)