From f45df4265d089dc4df22a411161db53e5a06bff7 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Thu, 16 Nov 2017 19:26:41 +0100
Subject: [PATCH] backends: Trigger MetaCursorTracker::cursor-changed on
 texture changes

So we allow gnome-shell's magnifier to update fake cursors while it's
turned on.

https://bugzilla.gnome.org/show_bug.cgi?id=754806
---
 src/backends/meta-cursor-tracker.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/backends/meta-cursor-tracker.c b/src/backends/meta-cursor-tracker.c
index 3cdab8389..f1562a259 100644
--- a/src/backends/meta-cursor-tracker.c
+++ b/src/backends/meta-cursor-tracker.c
@@ -53,6 +53,13 @@ enum {
 
 static guint signals[LAST_SIGNAL];
 
+static void
+cursor_texture_updated (MetaCursorSprite  *cursor,
+                        MetaCursorTracker *tracker)
+{
+  g_signal_emit (tracker, signals[CURSOR_CHANGED], 0);
+}
+
 static gboolean
 update_displayed_cursor (MetaCursorTracker *tracker)
 {
@@ -71,7 +78,12 @@ update_displayed_cursor (MetaCursorTracker *tracker)
   if (tracker->displayed_cursor == cursor)
     return FALSE;
 
+  g_signal_handlers_disconnect_by_func (tracker->displayed_cursor,
+                                        cursor_texture_updated,
+                                        tracker);
   g_set_object (&tracker->displayed_cursor, cursor);
+  g_signal_connect (tracker->displayed_cursor, "texture-changed",
+                    G_CALLBACK (cursor_texture_updated), tracker);
   return TRUE;
 }