Add example app for GtkSearchBar

https://bugzilla.gnome.org/show_bug.cgi?id=709745

examples/Makefile.am

@@ -26,7 +26,8 @@ noinst_PROGRAMS = \
 	action-namespace			\
 	grid-packing				\
 	drawing					\
-	builder
+	builder					\
+	search-bar
 
 EXTRA_DIST = builder.ui
 

examples/search-bar.c

@@ -0,0 +1,58 @@
+#include <gtk/gtk.h>
+
+static gboolean
+window_key_press_event_cb (GtkWidget *window,
+    GdkEvent *event,
+    GtkSearchBar *search_bar)
+{
+  return gtk_search_bar_handle_event (search_bar, event);
+}
+
+static void
+activate_cb (GtkApplication *app,
+    gpointer user_data)
+{
+  GtkWidget *window;
+  GtkWidget *search_bar;
+  GtkWidget *box;
+  GtkWidget *entry;
+  GtkWidget *menu_button;
+
+  window = gtk_application_window_new (app);
+  gtk_widget_show (window);
+
+  search_bar = gtk_search_bar_new ();
+  gtk_container_add (GTK_CONTAINER (window), search_bar);
+  gtk_widget_show (search_bar);
+
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  gtk_container_add (GTK_CONTAINER (search_bar), box);
+  gtk_widget_show (box);
+
+  entry = gtk_search_entry_new ();
+  gtk_box_pack_start (GTK_BOX (box), entry, TRUE, TRUE, 0);
+  gtk_widget_show (entry);
+
+  menu_button = gtk_menu_button_new ();
+  gtk_box_pack_start (GTK_BOX (box), menu_button, FALSE, FALSE, 0);
+  gtk_widget_show (menu_button);
+
+  gtk_search_bar_connect_entry (GTK_SEARCH_BAR (search_bar), GTK_ENTRY (entry));
+
+  g_signal_connect (window, "key-press-event",
+      G_CALLBACK (window_key_press_event_cb), search_bar);
+}
+
+gint
+main (gint argc,
+    gchar *argv[])
+{
+  GtkApplication *app;
+
+  app = gtk_application_new ("org.gtk.Example.GtkSearchBar",
+      G_APPLICATION_FLAGS_NONE);
+  g_signal_connect (app, "activate",
+      G_CALLBACK (activate_cb), NULL);
+
+  return g_application_run (G_APPLICATION (app), argc, argv);
+}