[gtk/matthiasc/for-master] editablelabel: Stop editing on focus-out

[Matthias Clasen <matthiasc src gnome org>]

commit 287d80bd36b1d3a717a45c19486e48c45b59b3c6
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jul 18 10:10:38 2020 -0400

    editablelabel: Stop editing on focus-out
    
    This is the expected behavior for the main use case,
    treeview-like 'edit one cell at a time'.

 gtk/gtkeditablelabel.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
---
diff --git a/gtk/gtkeditablelabel.c b/gtk/gtkeditablelabel.c
index 687de40348..52ca9f3e82 100644
--- a/gtk/gtkeditablelabel.c
+++ b/gtk/gtkeditablelabel.c
@@ -30,6 +30,7 @@
 #include "gtkshortcut.h"
 #include "gtkshortcuttrigger.h"
 #include "gtkwidgetprivate.h"
+#include "gtkeventcontrollerfocus.h"
 #include "gtkintl.h"
 
 /**
@@ -193,12 +194,20 @@ gtk_editable_label_prepare_drag (GtkDragSource    *source,
                                          gtk_label_get_label (GTK_LABEL (self->label)));
 }
 
+static void
+gtk_editable_label_focus_out (GtkEventController *controller,
+                              GtkEditableLabel   *self)
+{
+  gtk_editable_label_stop_editing (self, TRUE);
+}
+
 static void
 gtk_editable_label_init (GtkEditableLabel *self)
 {
   GtkGesture *gesture;
   GtkDropTarget *target;
   GtkDragSource *source;
+  GtkEventController *controller;
 
   gtk_widget_set_focusable (GTK_WIDGET (self), TRUE);
 
@@ -228,6 +237,10 @@ gtk_editable_label_init (GtkEditableLabel *self)
   g_signal_connect (source, "prepare", G_CALLBACK (gtk_editable_label_prepare_drag), self);
   gtk_widget_add_controller (self->label, GTK_EVENT_CONTROLLER (source));
 
+  controller = gtk_event_controller_focus_new ();
+  g_signal_connect (controller, "leave", G_CALLBACK (gtk_editable_label_focus_out), self);
+  gtk_widget_add_controller (GTK_WIDGET (self), controller);
+
   gtk_editable_init_delegate (GTK_EDITABLE (self));
 }