[evolution] ESourceConfig: Add "collection-source" property.

[Matthew Barnes <mbarnes src gnome org>]

commit 503b211d3d598316fc1040775f7a6669c32a47b1
Author: Matthew Barnes <mbarnes redhat com>
Date:   Fri Jun 15 08:06:49 2012 -0400

    ESourceConfig: Add "collection-source" property.
    
    This is a read-only property, set when editing an existing data source
    which is a collection member.  We'll use this to lock down certain UI
    elements.

 widgets/misc/e-source-config.c |   48 ++++++++++++++++++++++++++++++++++++++++
 widgets/misc/e-source-config.h |    2 +
 2 files changed, 50 insertions(+), 0 deletions(-)
---
diff --git a/widgets/misc/e-source-config.c b/widgets/misc/e-source-config.c
index 45a3d2d..25e7923 100644
--- a/widgets/misc/e-source-config.c
+++ b/widgets/misc/e-source-config.c
@@ -36,6 +36,7 @@ typedef struct _Candidate Candidate;
 
 struct _ESourceConfigPrivate {
 	ESource *original_source;
+	ESource *collection_source;
 	ESourceRegistry *registry;
 
 	GHashTable *backends;
@@ -58,6 +59,7 @@ struct _Candidate {
 
 enum {
 	PROP_0,
+	PROP_COLLECTION_SOURCE,
 	PROP_COMPLETE,
 	PROP_ORIGINAL_SOURCE,
 	PROP_REGISTRY
@@ -368,6 +370,13 @@ source_config_get_property (GObject *object,
                             GParamSpec *pspec)
 {
 	switch (property_id) {
+		case PROP_COLLECTION_SOURCE:
+			g_value_set_object (
+				value,
+				e_source_config_get_collection_source (
+				E_SOURCE_CONFIG (object)));
+			return;
+
 		case PROP_COMPLETE:
 			g_value_set_boolean (
 				value,
@@ -405,6 +414,11 @@ source_config_dispose (GObject *object)
 		priv->original_source = NULL;
 	}
 
+	if (priv->collection_source != NULL) {
+		g_object_unref (priv->collection_source);
+		priv->collection_source = NULL;
+	}
+
 	if (priv->registry != NULL) {
 		g_object_unref (priv->registry);
 		priv->registry = NULL;
@@ -460,11 +474,25 @@ static void
 source_config_constructed (GObject *object)
 {
 	ESourceConfig *config;
+	ESourceRegistry *registry;
 	ESource *original_source;
+	ESource *collection_source = NULL;
 
 	config = E_SOURCE_CONFIG (object);
+	registry = e_source_config_get_registry (config);
 	original_source = e_source_config_get_original_source (config);
 
+	/* If we have an original source, see if it's part
+	 * of a collection and note the collection source. */
+	if (original_source != NULL) {
+		const gchar *extension_name;
+
+		extension_name = E_SOURCE_EXTENSION_COLLECTION;
+		collection_source = e_source_registry_find_extension (
+			registry, original_source, extension_name);
+		config->priv->collection_source = collection_source;
+	}
+
 	if (original_source != NULL)
 		e_source_config_insert_widget (
 			config, NULL, _("Type:"),
@@ -636,6 +664,18 @@ e_source_config_class_init (ESourceConfigClass *class)
 
 	g_object_class_install_property (
 		object_class,
+		PROP_COLLECTION_SOURCE,
+		g_param_spec_object (
+			"collection-source",
+			"Collection Source",
+			"The collection ESource to which "
+			"the ESource being edited belongs",
+			E_TYPE_SOURCE,
+			G_PARAM_READABLE |
+			G_PARAM_STATIC_STRINGS));
+
+	g_object_class_install_property (
+		object_class,
 		PROP_COMPLETE,
 		g_param_spec_boolean (
 			"complete",
@@ -904,6 +944,14 @@ e_source_config_get_original_source (ESourceConfig *config)
 	return config->priv->original_source;
 }
 
+ESource *
+e_source_config_get_collection_source (ESourceConfig *config)
+{
+	g_return_val_if_fail (E_IS_SOURCE_CONFIG (config), NULL);
+
+	return config->priv->collection_source;
+}
+
 ESourceRegistry *
 e_source_config_get_registry (ESourceConfig *config)
 {
diff --git a/widgets/misc/e-source-config.h b/widgets/misc/e-source-config.h
index da996b6..1a5b549 100644
--- a/widgets/misc/e-source-config.h
+++ b/widgets/misc/e-source-config.h
@@ -83,6 +83,8 @@ const gchar *	e_source_config_get_backend_extension_name
 gboolean	e_source_config_check_complete	(ESourceConfig *config);
 ESource *	e_source_config_get_original_source
 						(ESourceConfig *config);
+ESource *	e_source_config_get_collection_source
+						(ESourceConfig *config);
 ESourceRegistry *
 		e_source_config_get_registry	(ESourceConfig *config);
 void		e_source_config_resize_window	(ESourceConfig *config);