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st: Keep weak ref on texture cache bound texture source

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We don't keep any ref on it, so it might leave us with a dangling
pointer here.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3491
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1672>
This commit is contained in:
Carlos Garnacho 2021-02-12 23:10:25 +01:00 committed by Marge Bot
parent 7a2e629bd0
commit 87558efbf1
1 changed files with 11 additions and 1 deletions
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10
src/st/st-texture-cache.c
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@ -798,6 +798,10 @@ st_texture_cache_bind_weak_notify (gpointer data,
{
StTextureCachePropertyBind *bind = data;
bind->weakref_active = FALSE;
if (G_OBJECT (bind->image) != source_location)
g_object_weak_unref (G_OBJECT (bind->image), st_texture_cache_bind_weak_notify, bind);
if (bind->source != source_location)
g_object_weak_unref (G_OBJECT (bind->source), st_texture_cache_bind_weak_notify, bind);
g_signal_handler_disconnect (bind->source, bind->notify_signal_id);
}
@ -805,8 +809,13 @@ static void
st_texture_cache_free_bind (gpointer data)
{
StTextureCachePropertyBind *bind = data;
if (bind->weakref_active)
{
g_object_weak_unref (G_OBJECT (bind->image), st_texture_cache_bind_weak_notify, bind);
g_object_weak_unref (G_OBJECT (bind->source), st_texture_cache_bind_weak_notify, bind);
}
g_free (bind);
}
@ -840,6 +849,7 @@ st_texture_cache_bind_cairo_surface_property (StTextureCache *cache,
st_texture_cache_reset_texture (bind, property_name);
g_object_weak_ref (G_OBJECT (bind->image), st_texture_cache_bind_weak_notify, bind);
g_object_weak_ref (G_OBJECT (bind->source), st_texture_cache_bind_weak_notify, bind);
bind->weakref_active = TRUE;
notify_key = g_strdup_printf ("notify::%s", property_name);