[gnome-photos] application: Add F1 accelerator to show help

[Debarshi Ray <debarshir src gnome org>]

commit 4b1cce28d3a56c41a5c98d73592ba5f54a536a79
Author: Scott Cohen <scottbencohen yahoo com>
Date:   Wed Jan 4 06:41:30 2017 -0800

    application: Add F1 accelerator to show help
    
    https://bugzilla.gnome.org/show_bug.cgi?id=776670

 src/photos-application.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-application.c b/src/photos-application.c
index 98ef2ea..2e3169f 100644
--- a/src/photos-application.c
+++ b/src/photos-application.c
@@ -1626,6 +1626,7 @@ photos_application_startup (GApplication *application)
   const gchar *edit_accels[2] = {"<Primary>e", NULL};
   const gchar *fullscreen_accels[2] = {"F11", NULL};
   const gchar *gear_menu_accels[2] = {"F10", NULL};
+  const gchar *help_menu_accels[2] = {"F1", NULL};
   const gchar *print_current_accels[2] = {"<Primary>p", NULL};
   const gchar *quit_accels[2] = {"<Primary>q", NULL};
   const gchar *save_accels[2] = {"<Primary>x", NULL};
@@ -1849,6 +1850,7 @@ photos_application_startup (GApplication *application)
   gtk_application_set_accels_for_action (GTK_APPLICATION (self), "app.edit-current", edit_accels);
   gtk_application_set_accels_for_action (GTK_APPLICATION (self), "app.fullscreen", fullscreen_accels);
   gtk_application_set_accels_for_action (GTK_APPLICATION (self), "app.gear-menu", gear_menu_accels);
+  gtk_application_set_accels_for_action (GTK_APPLICATION (self), "app.help", help_menu_accels);
   gtk_application_set_accels_for_action (GTK_APPLICATION (self), "app.print-current", print_current_accels);
   gtk_application_set_accels_for_action (GTK_APPLICATION (self), "app.save-current", save_accels);
   gtk_application_set_accels_for_action (GTK_APPLICATION (self), "app.search", search_accels);