[empathy: 29/99] Return meaningful errors when starting a call fails

[Emilio Pozuelo Monfort <epm src gnome org>]

commit a826ef6e4581c57834e1286b48afdc87ec8244c2
Author: Emilio Pozuelo Monfort <emilio pozuelo collabora co uk>
Date:   Mon Feb 28 12:29:40 2011 +0000

    Return meaningful errors when starting a call fails

 libempathy-gtk/empathy-call-utils.c |   23 ++++++++++++++++++++++-
 1 files changed, 22 insertions(+), 1 deletions(-)
---
diff --git a/libempathy-gtk/empathy-call-utils.c b/libempathy-gtk/empathy-call-utils.c
index 677d28f..2c7d6d1 100644
--- a/libempathy-gtk/empathy-call-utils.c
+++ b/libempathy-gtk/empathy-call-utils.c
@@ -35,6 +35,27 @@
 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
 #include <libempathy/empathy-debug.h>
 
+static const gchar *
+get_error_display_message (GError *error)
+{
+  if (error->domain != TP_ERROR)
+    return _("There was an error starting the call");
+
+  switch (error->code)
+    {
+      case TP_ERROR_NETWORK_ERROR:
+        return _("Network error");
+      case TP_ERROR_NOT_CAPABLE:
+        return _("The specified contact doesn't support calls");
+      case TP_ERROR_OFFLINE:
+        return _("The specified contact is offline");
+      case TP_ERROR_INVALID_HANDLE:
+        return _("The specified contact is not valid");
+    }
+
+  return _("There was an error starting the call");
+}
+
 static void
 show_call_error (GError *error)
 {
@@ -42,7 +63,7 @@ show_call_error (GError *error)
 
   dialog = gtk_message_dialog_new (NULL, 0,
       GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE,
-      _("There was an error starting the call"));
+      get_error_display_message (error));
 
   g_signal_connect_swapped (dialog, "response",
       G_CALLBACK (gtk_widget_destroy),