[gtk+] icon browser: Add a 'copy to clipboard' button

[Matthias Clasen <matthiasc src gnome org>]

commit 04fbef7f1eb7e535e96a1df17d20b223af200a90
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jun 2 12:39:39 2017 -0700

    icon browser: Add a 'copy to clipboard' button
    
    This makes it more obvious how to use the icon.

 demos/icon-browser/iconbrowserwin.c |   11 +++++++++++
 demos/icon-browser/window.ui        |   15 +++++++++++++++
 2 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/demos/icon-browser/iconbrowserwin.c b/demos/icon-browser/iconbrowserwin.c
index 2add75b..7e33622 100644
--- a/demos/icon-browser/iconbrowserwin.c
+++ b/demos/icon-browser/iconbrowserwin.c
@@ -281,6 +281,16 @@ key_press_event_cb (GtkWidget *widget,
   return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar), event);
 }
 
+static void
+copy_to_clipboard (GtkButton         *button,
+                   IconBrowserWindow *win)
+{
+  GtkClipboard *clipboard;
+
+  clipboard = gtk_clipboard_get_default (gdk_display_get_default ());
+  gtk_clipboard_set_text (clipboard, gtk_window_get_title (GTK_WINDOW (win->details)), -1);
+}
+
 static gboolean
 icon_visible_func (GtkTreeModel *model,
                    GtkTreeIter  *iter,
@@ -453,6 +463,7 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), selected_context_changed);
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), symbolic_toggled);
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), key_press_event_cb);
+  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), copy_to_clipboard);
 }
 
 IconBrowserWindow *
diff --git a/demos/icon-browser/window.ui b/demos/icon-browser/window.ui
index 3cedca4..dd2564f 100644
--- a/demos/icon-browser/window.ui
+++ b/demos/icon-browser/window.ui
@@ -320,6 +320,21 @@
                 <property name="width">5</property>
               </packing>
             </child>
+            <child>
+              <object class="GtkButton">
+                <property name="visible">True</property>
+                <property name="label" translatable="yes">Copy to Clipboard</property>
+                <property name="halign">center</property>
+                <property name="valign">center</property>
+                <property name="margin">20</property>
+                <signal name="clicked" handler="copy_to_clipboard"/>
+              </object>
+              <packing>
+                <property name="left-attach">0</property>
+                <property name="top-attach">4</property>
+                <property name="width">5</property>
+              </packing>
+            </child>
           </object>
         </child>
       </object>