[evolution-data-server] Add e_source_registry_server_load_resource().

[Matthew Barnes <mbarnes src gnome org>]

commit 42ccd142e30c046a525934749bdca780fd589834
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon Jan 21 18:45:17 2013 -0500

    Add e_source_registry_server_load_resource().
    
    Loads data source key files from a GResource by enumerating the children
    at the given pathname and calling e_source_registry_server_load_file()
    on each child.

 .../reference/libebackend/libebackend-sections.txt |    1 +
 libebackend/e-source-registry-server.c             |   73 ++++++++++++++++++++
 libebackend/e-source-registry-server.h             |    6 ++
 3 files changed, 80 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/libebackend/libebackend-sections.txt b/docs/reference/libebackend/libebackend-sections.txt
index 883e3c1..8e55d54 100644
--- a/docs/reference/libebackend/libebackend-sections.txt
+++ b/docs/reference/libebackend/libebackend-sections.txt
@@ -399,6 +399,7 @@ e_source_registry_server_remove_source
 e_source_registry_server_load_all
 ESourcePermissionFlags
 e_source_registry_server_load_directory
+e_source_registry_server_load_resource
 e_source_registry_server_load_file
 e_source_registry_server_load_error
 e_source_registry_server_ref_source
diff --git a/libebackend/e-source-registry-server.c b/libebackend/e-source-registry-server.c
index 753a7f0..4aecb22 100644
--- a/libebackend/e-source-registry-server.c
+++ b/libebackend/e-source-registry-server.c
@@ -1795,6 +1795,79 @@ e_source_registry_server_load_directory (ESourceRegistryServer *server,
 	return TRUE;
 }
 
+/**
+ * e_source_registry_server_load_resource:
+ * @server: an #ESourceRegistryServer
+ * @resource: a #GResource containing data source key files
+ * @path: the path to the data source key files inside @resource
+ * @flags: permission flags for files loaded from @path
+ * @error: return location for a #GError, or %NULL
+ *
+ * Loads data source key files from @resource by enumerating the children
+ * at @path and calling e_source_registry_server_load_file() on each child.
+ * Because multiple errors can occur when loading multiple files, @error is
+ * only set if @path is invalid.  If a key file fails to load, the error is
+ * broadcast through the #ESourceRegistryServer::load-error signal.
+ *
+ * Returns: %TRUE if @path was successfully located, but this does not
+ *          imply the key files were successfully loaded
+ *
+ * Since: 3.8
+ **/
+gboolean
+e_source_registry_server_load_resource (ESourceRegistryServer *server,
+                                        GResource *resource,
+                                        const gchar *path,
+                                        ESourcePermissionFlags flags,
+                                        GError **error)
+{
+	gchar **children;
+	gint ii;
+
+	g_return_val_if_fail (E_IS_SOURCE_REGISTRY_SERVER (server), FALSE);
+	g_return_val_if_fail (resource != NULL, FALSE);
+	g_return_val_if_fail (path != NULL, FALSE);
+
+	children = g_resource_enumerate_children (
+		resource, path, G_RESOURCE_LOOKUP_FLAGS_NONE, error);
+
+	if (children == NULL)
+		return FALSE;
+
+	for (ii = 0; children[ii] != NULL; ii++) {
+		ESource *source;
+		GFile *file;
+		gchar *child_path;
+		gchar *resource_uri;
+		GError *local_error = NULL;
+
+		child_path = g_build_path ("/", path, children[ii], NULL);
+		resource_uri = g_strconcat ("resource://", child_path, NULL);
+		file = g_file_new_for_uri (resource_uri);
+		g_free (resource_uri);
+		g_free (child_path);
+
+		source = e_source_registry_server_load_file (
+			server, file, flags, &local_error);
+
+		/* We don't need the returned reference. */
+		if (source != NULL)
+			g_object_unref (source);
+
+		if (local_error != NULL) {
+			e_source_registry_server_load_error (
+				server, file, local_error);
+			g_error_free (local_error);
+		}
+
+		g_object_unref (file);
+	}
+
+	g_strfreev (children);
+
+	return TRUE;
+}
+
 /* Helper for e_source_registry_server_load_file() */
 static gboolean
 source_registry_server_tweak_key_file (ESourceRegistryServer *server,
diff --git a/libebackend/e-source-registry-server.h b/libebackend/e-source-registry-server.h
index b39a72e..27d2fd2 100644
--- a/libebackend/e-source-registry-server.h
+++ b/libebackend/e-source-registry-server.h
@@ -116,6 +116,12 @@ gboolean	e_source_registry_server_load_directory
 						 const gchar *path,
 						 ESourcePermissionFlags flags,
 						 GError **error);
+gboolean	e_source_registry_server_load_resource
+						(ESourceRegistryServer *server,
+						 GResource *resource,
+						 const gchar *path,
+						 ESourcePermissionFlags flags,
+						 GError **error);
 ESource *	e_source_registry_server_load_file
 						(ESourceRegistryServer *server,
 						 GFile *file,