non-session-manager support

Implements open, save and dirtiness.
No error checking, no menu items disabling.

1 files changed, 112 insertions, 0 deletions

diff --git a/gtk2_ardour/nsmclient.h b/gtk2_ardour/nsmclient.h
new file mode 100644
index 0000000000..ce55e64e3f
--- /dev/null
+++ b/gtk2_ardour/nsmclient.h
@@ -0,0 +1,112 @@
+
+/*******************************************************************************/
+/* Copyright (C) 2012 Jonathan Moore Liles                                     */
+/*                                                                             */
+/* This program is free software; you can redistribute it and/or modify it     */
+/* under the terms of the GNU General Public License as published by the       */
+/* Free Software Foundation; either version 2 of the License, or (at your      */
+/* option) any later version.                                                  */
+/*                                                                             */
+/* This program is distributed in the hope that it will be useful, but WITHOUT */
+/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       */
+/* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for   */
+/* more details.                                                               */
+/*                                                                             */
+/* You should have received a copy of the GNU General Public License along     */
+/* with This program; see the file COPYING.  If not,write to the Free Software */
+/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+/*******************************************************************************/
+
+#pragma once
+
+#include <lo/lo.h>
+
+namespace NSM
+{
+
+    class Client
+    {
+
+    private:
+
+        const char *nsm_url;
+
+        lo_server _server;
+        lo_server_thread _st;
+        lo_address nsm_addr;
+
+        bool nsm_is_active;
+        char *_nsm_client_id;
+        char *_session_manager_name;
+        char *_nsm_client_path;
+
+    public:
+
+        enum
+        {
+            ERR_OK = 0,
+            ERR_GENERAL    = -1,
+            ERR_INCOMPATIBLE_API = -2,
+            ERR_BLACKLISTED      = -3,
+            ERR_LAUNCH_FAILED    = -4,
+            ERR_NO_SUCH_FILE     = -5,
+            ERR_NO_SESSION_OPEN  = -6,
+            ERR_UNSAVED_CHANGES  = -7,
+            ERR_NOT_NOW          = -8
+        };
+
+        Client ( );
+        virtual ~Client ( );
+
+        bool is_active ( void ) { return nsm_is_active; }
+
+        const char *session_manager_name ( void ) { return _session_manager_name; }
+        const char *client_id ( void ) { return _nsm_client_id; }
+        const char *client_path ( void ) { return _nsm_client_path; }
+
+        /* Client->Server methods */
+        void is_dirty ( void );
+        void is_clean ( void );
+        void progress ( float f );
+        void message( int priority, const char *msg );
+        void announce ( const char *appliction_name, const char *capabilities, const char *process_name );
+
+        void broadcast ( lo_message msg );
+
+        /* init without threading */
+        int init ( const char *nsm_url );
+        /* init with threading */
+        int init_thread ( const char *nsm_url );
+        
+        /* call this periodically to check for new messages */
+        void check ( int timeout = 0 );
+
+        /* or call these to start and stop a thread (must do your own locking in handler!) */
+        void start ( void );
+        void stop ( void );
+
+    protected:
+
+        /* Server->Client methods */
+        virtual int command_open ( const char *name, const char *display_name, const char *client_id, char **out_msg ) = 0;
+        virtual int command_save ( char **out_msg ) = 0;
+
+        virtual void command_active ( bool ) { }
+
+        virtual void command_session_is_loaded ( void ) { }
+
+        /* invoked when an unrecognized message is received. Should return 0 if you handled it, -1 otherwise. */
+        virtual int command_broadcast ( const char *, lo_message ) { return -1; }
+
+    private:
+
+        /* osc handlers */
+        static int osc_open ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
+        static int osc_save ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
+        static int osc_announce_reply ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
+        static int osc_error ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
+        static int osc_session_is_loaded ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
+        static int osc_broadcast ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
+
+    };
+};