gtk+3: Backport treeview focus fix

Treeview did not grab focus properly on mouse click, leading to e.g.
multifile selection with click/shift-click not working in the
filechooser. Backport a fix.

Fixes [YOCTO #10273].

(From OE-Core rev: d408b79dba47e4392a9d13aff1660a1e483a765c)

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-gnome/gtk+/gtk+3/0001-Redo-focus-handling-in-treeview-once-more.patch

@@ -0,0 +1,39 @@
+Upstream-Status: Backport [29faa2db]
+Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
+
+
+From 29faa2db44b04b9cf7f4d96e32691f424490c730 Mon Sep 17 00:00:00 2001
+From: Matthias Clasen <mclasen@redhat.com>
+Date: Sun, 11 Sep 2016 11:47:55 -0400
+Subject: [PATCH] Redo focus handling in treeview once more
+
+The fix for bug 767468 had some unintended side-effects. This is
+an attempt at doing the same fix (don't grab focus when we are
+grab-shadowed), while avoiding the breakage, by using GTK+'s
+internal tracking for grab-shadowed-ness.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=770508
+---
+ gtk/gtktreeview.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
+index a7463cc..73d3557 100644
+--- a/gtk/gtktreeview.c
++++ b/gtk/gtktreeview.c
+@@ -3050,11 +3050,10 @@ static void
+ grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
+ {
+   GtkWidget *widget = GTK_WIDGET (tree_view);
+-  GtkWidget *grab_widget = gtk_grab_get_current ();
+ 
+   if (gtk_widget_get_can_focus (widget) &&
+       !gtk_widget_has_focus (widget) &&
+-      (!grab_widget || grab_widget == widget))
++      !_gtk_widget_get_shadowed (widget))
+     gtk_widget_grab_focus (widget);
+ 
+   tree_view->priv->draw_keyfocus = 0;
+-- 
+2.9.3
+

meta/recipes-gnome/gtk+/gtk+3_3.20.9.bb

@@ -7,6 +7,7 @@ SRC_URI = "http://ftp.gnome.org/pub/gnome/sources/gtk+/${MAJ_VER}/gtk+-${PV}.tar
            file://0002-Do-not-try-to-initialize-GL-without-libGL.patch \
            file://0003-Add-disable-opengl-configure-option.patch \
            file://0004-configure.ac-Fix-wayland-protocols-path.patch \
+           file://0001-Redo-focus-handling-in-treeview-once-more.patch \
           "
 SRC_URI[md5sum] = "cc76cac5e18c772c6784bf19a3dff08b"
 SRC_URI[sha256sum] = "83a609ba2f3424b5509e73967c49c67833af466d6f91081b24ee5c64fce6ac17"