src/jabber_whiteboard/inkboard-session.h

   1 /**
   2  * Inkscape::Whiteboard::InkboardSession - Whiteboard implementation of XML::Session interface
   3  *
   4  * Authors:
   5  * David Yip <yipdw@rose-hulman.edu>
   6  *
   7  * Copyright (c) 2005 Authors
   8  *
   9  * Released under GNU GPL, read the file 'COPYING' for more information
  10  */
  11
  12 #ifndef __INKSCAPE_WHITEBOARD_SESSION_H__
  13 #define __INKSCAPE_WHITEBOARD_SESSION_H__
  14
  15 #include <glibmm.h>
  16 #include <bitset>
  17
  18 #include "gc-managed.h"
  19
  20 #include "xml/session.h"
  21 #include "xml/transaction-logger.h"
  22 #include "xml/log-builder.h"
  23 #include "xml/node-observer.h"
  24 #include "xml/simple-session.h"
  25
  26 #include "pedro/pedroxmpp.h"
  27
  28 #include "jabber_whiteboard/inkboard-document.h"
  29 #include "jabber_whiteboard/defines.h"
  30
  31 #include "util/share.h"
  32
  33 namespace Inkscape {
  34
  35 namespace Whiteboard {
  36
  37 class InkboardDocument;
  38
  39 class InkboardSession : public GC::Managed<>, public XML::Session,
  40                          public XML::TransactionLogger
  41 {
  42 public:
  43
  44     InkboardSession() : _in_transaction(false) { }
  45     InkboardSession(InkboardDocument *document) : _in_transaction(false), doc(document) {}
  46     virtual ~InkboardSession() { }
  47
  48     //
  49     // XML::TransactionLogger methods
  50     //
  51     Session& session()
  52     {
  53         return *this;
  54     }
  55
  56     //
  57     // XML::Session methods
  58     //
  59     bool inTransaction()
  60     {
  61         return _in_transaction;
  62     }
  63
  64     void beginTransaction();
  65     void rollback();
  66     void commit();
  67
  68     XML::Event* commitUndoable();
  69
  70     XML::Node* createElementNode(char const* name);
  71     XML::Node* createTextNode(char const* content);
  72     XML::Node* createCommentNode(char const* content);
  73
  74     //
  75     // XML::NodeObserver methodscd ../
  76     // (inherited from XML::TransactionLogger)
  77     //
  78     void notifyChildAdded(Inkscape::XML::Node &parent, Inkscape::XML::Node &child, Inkscape::XML::Node *prev);
  79
  80     void notifyChildRemoved(Inkscape::XML::Node &parent, Inkscape::XML::Node &child, Inkscape::XML::Node *prev);
  81
  82     void notifyChildOrderChanged(Inkscape::XML::Node &parent, Inkscape::XML::Node &child,
  83                                  Inkscape::XML::Node *old_prev, Inkscape::XML::Node *new_prev);
  84
  85     void notifyContentChanged(Inkscape::XML::Node &node,
  86                               Util::ptr_shared<char> old_content,
  87                               Util::ptr_shared<char> new_content);
  88
  89     void notifyAttributeChanged(Inkscape::XML::Node &node, GQuark name,
  90                                 Util::ptr_shared<char> old_value,
  91                                 Util::ptr_shared<char> new_value);
  92
  93 private:
  94
  95     InkboardSession(InkboardSession const &); // no copy
  96     void operator=(InkboardSession const &); // no assign
  97
  98     bool _in_transaction;
  99
 100     InkboardDocument *doc;
 101 };
 102
 103 }
 104
 105 }
 106
 107 #endif