[evolution] Bug 752994 - Google authentication method overwritten for GOA books

[Milan Crha <mcrha src gnome org>]

commit 72e534c5cd1baed98146b6c9ec3ba64401aca7c9
Author: Milan Crha <mcrha redhat com>
Date:   Wed Aug 5 22:45:22 2015 +0200

    Bug 752994 - Google authentication method overwritten for GOA books

 .../evolution-book-config-google.c                 |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/modules/book-config-google/evolution-book-config-google.c 
b/modules/book-config-google/evolution-book-config-google.c
index 06d2786..13c3963 100644
--- a/modules/book-config-google/evolution-book-config-google.c
+++ b/modules/book-config-google/evolution-book-config-google.c
@@ -89,15 +89,24 @@ static void
 book_config_google_commit_changes (ESourceConfigBackend *backend,
                                    ESource *scratch_source)
 {
+       ESource *collection_source;
+       ESourceConfig *config;
        ESourceAuthentication *extension;
        const gchar *extension_name;
        const gchar *user;
 
+       config = e_source_config_backend_get_config (backend);
+       collection_source = e_source_config_get_collection_source (config);
+
        extension_name = E_SOURCE_EXTENSION_AUTHENTICATION;
        extension = e_source_get_extension (scratch_source, extension_name);
 
-       e_source_authentication_set_host (extension, "www.google.com");
-       e_source_authentication_set_method (extension, "ClientLogin");
+       if (!collection_source || (
+           !e_source_has_extension (collection_source, E_SOURCE_EXTENSION_GOA) &&
+           !e_source_has_extension (collection_source, E_SOURCE_EXTENSION_UOA))) {
+               e_source_authentication_set_host (extension, "www.google.com");
+               e_source_authentication_set_method (extension, "ClientLogin");
+       }
 
        user = e_source_authentication_get_user (extension);
        g_return_if_fail (user != NULL);