[totem/gnome-2-32] Disable Open button in TotemOpenLocation dialog when URI entry is empty

[Bastien Nocera <hadess src gnome org>]

commit a662dbfdfb859f3340e5503dc78b06b301b4a2b6
Author: Alexander Saprykin <xelfium gmail com>
Date:   Wed Jun 30 11:53:45 2010 +0400

    Disable Open button in TotemOpenLocation dialog when URI entry is empty
    
    Helps: bgo#623127

 data/uri.ui               |    1 +
 src/totem-open-location.c |   11 +++++++++++
 2 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/data/uri.ui b/data/uri.ui
index 10439d0..3f86cfb 100644
--- a/data/uri.ui
+++ b/data/uri.ui
@@ -25,6 +25,7 @@
     <object class="GtkEntry" id="uri">
       <property name="visible">True</property>
       <property name="activates_default">True</property>
+      <signal name="changed" handler="uri_entry_changed_cb"/>
     </object>
     <packing>
       <property name="position">1</property>
diff --git a/src/totem-open-location.c b/src/totem-open-location.c
index 714f284..8fb4fa7 100644
--- a/src/totem-open-location.c
+++ b/src/totem-open-location.c
@@ -50,6 +50,9 @@ struct TotemOpenLocationPrivate
 
 G_DEFINE_TYPE (TotemOpenLocation, totem_open_location, GTK_TYPE_DIALOG)
 
+/* GtkBuilder callbacks */
+G_MODULE_EXPORT void uri_entry_changed_cb (GtkEditable *entry, GtkDialog *dialog);
+
 static void
 totem_open_location_class_init (TotemOpenLocationClass *klass)
 {
@@ -143,6 +146,13 @@ totem_open_location_set_from_clipboard (TotemOpenLocation *open_location)
 	return NULL;
 }
 
+void
+uri_entry_changed_cb (GtkEditable *entry, GtkDialog *dialog)
+{
+	gboolean sensitive = (gtk_entry_get_text_length (GTK_ENTRY (entry)) > 0);
+	gtk_dialog_set_response_sensitive (dialog, GTK_RESPONSE_OK, sensitive);
+}
+
 GtkWidget*
 totem_open_location_new (Totem *totem)
 {
@@ -165,6 +175,7 @@ totem_open_location_new (Totem *totem)
 			GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 			GTK_STOCK_OPEN, GTK_RESPONSE_OK,
 			NULL);
+	gtk_dialog_set_response_sensitive (GTK_DIALOG (open_location), GTK_RESPONSE_OK, FALSE);
 	gtk_container_set_border_width (GTK_CONTAINER (open_location), 5);
 	gtk_dialog_set_default_response (GTK_DIALOG (open_location), GTK_RESPONSE_OK);