Change the sensitivity of the start button depending on the number of interfaces selected.

svn path=/trunk/; revision=48827

ui/gtk/capture_dlg.c

@@ -2449,6 +2449,7 @@ update_options_table(gint indx)
       change_interface_selection(g_strdup(device.name), device.selected);
     }
   }
+  set_sensitivity_for_start_icon();
 }
 
 
@@ -3190,6 +3191,7 @@ static void capture_all_cb(GtkToggleButton *button, gpointer d _U_)
     gtk_widget_set_sensitive(all_compile_bt, FALSE);
 #endif
   }
+  set_sensitivity_for_start_icon();
 }
 
 

ui/gtk/main_menubar.c

@@ -4825,6 +4825,8 @@ set_menus_for_capture_in_progress(gboolean capture_in_progress)
                          !capture_in_progress);
     set_menu_sensitivity(ui_manager_main_menubar, "/Menubar/CaptureMenu/Start",
                          !capture_in_progress);
+    set_menu_sensitivity(ui_manager_main_menubar, "/Menubar/CaptureMenu/Start",
+                         global_capture_opts.num_selected > 0);
     set_menu_sensitivity(ui_manager_main_menubar, "/Menubar/CaptureMenu/Stop",
                          capture_in_progress);
     set_menu_sensitivity(ui_manager_main_menubar, "/Menubar/CaptureMenu/Restart",
@@ -4832,6 +4834,12 @@ set_menus_for_capture_in_progress(gboolean capture_in_progress)
 #endif /* HAVE_LIBPCAP */
 }
 
+void
+set_menus_capture_start_sensitivity(gboolean enable)
+{
+    set_menu_sensitivity(ui_manager_main_menubar, "/Menubar/CaptureMenu/Start",
+                         enable);
+}
 
 /* Disable menu items while we're waiting for the capture child to
    finish.  We disallow quitting until it finishes, and also disallow

ui/gtk/main_toolbar.c

@@ -58,6 +58,7 @@
 #include "ui/gtk/keys.h"
 #include "ui/gtk/packet_history.h"
 #include "ui/gtk/packet_list.h"
+#include "ui/capture_globals.h"
 
 #include "ui/gtk/old-gtk-compat.h"
 
@@ -97,6 +98,10 @@ toolbar_redraw_all(void)
                           (GtkToolbarStyle)prefs.gui_toolbar_filter_style);
 }
 
+void set_start_button_sensitive(gboolean enable) {
+    gtk_widget_set_sensitive(GTK_WIDGET(new_button), enable);
+}
+
 /* Enable or disable toolbar items based on whether you have a capture file
    and, if so, whether you've finished reading it and whether there's stuff
    in it that hasn't yet been saved to a permanent file. */
@@ -136,10 +141,13 @@ void set_toolbar_for_capture_in_progress(gboolean capture_in_progress) {
 
     if (toolbar_init) {
 #ifdef HAVE_LIBPCAP
-	gtk_widget_set_sensitive(GTK_WIDGET(capture_options_button), !capture_in_progress);
+	    gtk_widget_set_sensitive(GTK_WIDGET(capture_options_button), !capture_in_progress);
         gtk_widget_set_sensitive(GTK_WIDGET(new_button), !capture_in_progress);
         gtk_widget_set_sensitive(GTK_WIDGET(stop_button), capture_in_progress);
-	gtk_widget_set_sensitive(GTK_WIDGET(clear_button), capture_in_progress);
+	    gtk_widget_set_sensitive(GTK_WIDGET(clear_button), capture_in_progress);
+	    if (!capture_in_progress) {
+	        gtk_widget_set_sensitive(GTK_WIDGET(new_button), (global_capture_opts.num_selected > 0));
+	    }
         /*if (capture_in_progress) {
             gtk_widget_hide(GTK_WIDGET(new_button));
             gtk_widget_show(GTK_WIDGET(stop_button));

ui/gtk/main_toolbar.h

@@ -44,4 +44,7 @@ void toolbar_redraw_all(void);
  */
 void set_toolbar_object_data(const gchar *key, gpointer data);
 
+void set_start_button_sensitive(gboolean enable);
+void set_menus_capture_start_sensitivity(gboolean enable);
+
 #endif /* __TOOLBAR_H__ */

ui/gtk/main_welcome.c

@@ -54,6 +54,7 @@
 #include "ui/gtk/main.h"
 #include "ui/gtk/menus.h"
 #include "ui/gtk/main_welcome.h"
+#include "ui/gtk/main_toolbar.h"
 #include "ui/gtk/help_dlg.h"
 #include "ui/gtk/capture_file_dlg.h"
 #include "ui/gtk/stock_icons.h"
@@ -751,9 +752,19 @@ gboolean on_selection_changed(GtkTreeSelection *selection _U_,
             break;
         }
     }
+    set_sensitivity_for_start_icon();
     return TRUE;
 }
 
+void
+set_sensitivity_for_start_icon()
+{
+    gboolean enable = (global_capture_opts.num_selected > 0);
+
+    set_start_button_sensitive(enable);
+    set_menus_capture_start_sensitivity(enable);
+}
+
 static gboolean activate_ifaces(GtkTreeModel  *model,
                                 GtkTreePath   *path _U_,
                                 GtkTreeIter   *iter,

ui/gtk/main_welcome.h

@@ -76,6 +76,8 @@ void change_selection_for_all(gboolean enable);
 
 void update_welcome_list(void);
 
+void set_sensitivity_for_start_icon(void);
+
 #ifdef HAVE_PCAP_REMOTE
 void add_interface_to_list(guint index);
 #endif