[gtk+/gtk-3-22] Entry: Set tooltip text on icon for emoji chooser

[Matthias Clasen <matthiasc src gnome org>]

commit 38b8b3ce1da7c1343f8d3b28968be429771cbab1
Author: Daniel Boles <dboles src gnome org>
Date:   Wed Aug 30 12:48:23 2017 +0100

    Entry: Set tooltip text on icon for emoji chooser
    
    https://bugzilla.gnome.org/show_bug.cgi?id=786885

 gtk/gtkentry.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkentry.c b/gtk/gtkentry.c
index 796769c..3b11290 100644
--- a/gtk/gtkentry.c
+++ b/gtk/gtkentry.c
@@ -11097,6 +11097,10 @@ set_show_emoji_icon (GtkEntry *entry,
                                       GTK_ENTRY_ICON_SECONDARY,
                                       TRUE);
 
+      gtk_entry_set_icon_tooltip_text (entry,
+                                       GTK_ENTRY_ICON_SECONDARY,
+                                       _("Insert Emoji"));
+
       g_signal_connect (entry, "icon-press", G_CALLBACK (pick_emoji), NULL);
     }
   else
@@ -11106,6 +11110,10 @@ set_show_emoji_icon (GtkEntry *entry,
       gtk_entry_set_icon_from_icon_name (entry,
                                          GTK_ENTRY_ICON_SECONDARY,
                                          NULL);
+
+      gtk_entry_set_icon_tooltip_text (entry,
+                                       GTK_ENTRY_ICON_SECONDARY,
+                                       NULL);
     }
 
   g_object_notify_by_pspec (G_OBJECT (entry), entry_props[PROP_SHOW_EMOJI_ICON]);