[nautilus-actions] Define na_io_provider_are_writings_authorized() new function

[Pierre Wieser <pwieser src gnome org>]

commit 2e3dcae43dad7409e951b861a125f56a4f749fd8
Author: Pierre Wieser <pwieser trychlos org>
Date:   Mon Jan 3 05:23:24 2011 +0100

    Define na_io_provider_are_writings_authorized() new function

 ChangeLog                 |    4 ++++
 src/core/na-io-provider.c |   31 ++++++++++++++++++++++---------
 src/core/na-io-provider.h |    2 ++
 3 files changed, 28 insertions(+), 9 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 175657a..73edcf2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -135,6 +135,10 @@
 
 2011-01-03 Pierre Wieser <pwieser trychlos org>
 
+	* src/core/na-io-provider.c:
+	* src/core/na-io-provider.h (na_io_provider_are_writings_authorized):
+	New function.
+
 	* configure.ac: Define a conditional if we have both GSettings and GConf.
 
 	* src/core/na-gsettings-migrate.c:
diff --git a/src/core/na-io-provider.c b/src/core/na-io-provider.c
index b7cf959..4c98554 100644
--- a/src/core/na-io-provider.c
+++ b/src/core/na-io-provider.c
@@ -609,15 +609,8 @@ na_io_provider_get_writable_provider( const NAPivot *pivot )
 	provider = NULL;
 
 	for( ip = providers ; ip && !provider ; ip = ip->next ){
-
-		if( na_io_provider_is_willing_to_write( NA_IO_PROVIDER( ip->data )) &&
-			na_io_provider_is_able_to_write( NA_IO_PROVIDER( ip->data )) &&
-			na_io_provider_has_write_api( NA_IO_PROVIDER( ip->data )) &&
-			na_io_provider_is_user_writable( NA_IO_PROVIDER( ip->data ), NA_IPREFS( pivot )) &&
-			!na_io_provider_is_locked_by_admin( NA_IO_PROVIDER( ip->data ), NA_IPREFS( pivot )) &&
-			!na_pivot_is_configuration_locked_by_admin( pivot )){
-
-				provider = NA_IO_PROVIDER( ip->data );
+		if( na_io_provider_are_writings_authorized( NA_IO_PROVIDER( ip->data ), pivot )){
+			provider = NA_IO_PROVIDER( ip->data );
 		}
 	}
 
@@ -1180,6 +1173,26 @@ na_io_provider_has_write_api( const NAIOProvider *provider )
 }
 
 /*
+ * na_io_provider_get_writable_provider:
+ * @pivot: the #NAPivot instance.
+ *
+ * Returns: the first willing and able to write I/O provider, or NULL.
+ *
+ * The returned provider should not be g_object_unref() by the caller.
+ */
+gboolean
+na_io_provider_are_writings_authorized( const NAIOProvider *provider, const NAPivot *pivot )
+{
+
+	return( na_io_provider_is_willing_to_write( provider ) &&
+			na_io_provider_is_able_to_write( provider ) &&
+			na_io_provider_has_write_api( provider ) &&
+			na_io_provider_is_user_writable( provider , NA_IPREFS( pivot )) &&
+			!na_io_provider_is_locked_by_admin( provider , NA_IPREFS( pivot )) &&
+			!na_pivot_is_configuration_locked_by_admin( pivot ));
+}
+
+/*
  * na_io_provider_write_item:
  * @provider: this #NAIOProvider object.
  * @item: a #NAObjectItem to be written to the storage subsystem.
diff --git a/src/core/na-io-provider.h b/src/core/na-io-provider.h
index c61d36f..88c48ed 100644
--- a/src/core/na-io-provider.h
+++ b/src/core/na-io-provider.h
@@ -103,6 +103,8 @@ gboolean       na_io_provider_is_willing_to_write        ( const NAIOProvider *p
 gboolean       na_io_provider_is_able_to_write           ( const NAIOProvider *provider );
 gboolean       na_io_provider_has_write_api              ( const NAIOProvider *provider );
 
+gboolean       na_io_provider_are_writings_authorized    ( const NAIOProvider *provider, const NAPivot *pivot );
+
 guint          na_io_provider_write_item    ( const NAIOProvider *provider, const NAObjectItem *item, GSList **messages );
 guint          na_io_provider_delete_item   ( const NAIOProvider *provider, const NAObjectItem *item, GSList **messages );
 guint          na_io_provider_duplicate_data( const NAIOProvider *provider, NAObjectItem *dest, const NAObjectItem *source, GSList **messages );