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/inkboard-node.h"
  30
  31 #include "jabber_whiteboard/defines.h"
  32
  33 #include "util/share.h"
  34
  35 namespace Inkscape {
  36
  37 namespace Whiteboard {
  38
  39 class InkboardDocument;
  40
  41 class InkboardSession : public GC::Managed<>, public XML::Session,
  42                          public XML::TransactionLogger
  43 {
  44 public:
  45
  46     InkboardSession() : _in_transaction(false) { }
  47     InkboardSession(InkboardDocument *document) : _in_transaction(false), doc(document) {}
  48     virtual ~InkboardSession() { }
  49
  50     //
  51     // XML::TransactionLogger methods
  52     //
  53     Session& session()
  54     {
  55         return *this;
  56     }
  57
  58     //
  59     // XML::Session methods
  60     //
  61     bool inTransaction()
  62     {
  63         return _in_transaction;
  64     }
  65
  66     void beginTransaction();
  67     void rollback();
  68     void commit();
  69
  70     XML::Event* commitUndoable();
  71
  72     XML::Node* createElementNode(char const* name);
  73     XML::Node* createTextNode(char const* content);
  74     XML::Node* createCommentNode(char const* content);
  75
  76     //
  77     // XML::NodeObserver methodscd ../
  78     // (inherited from XML::TransactionLogger)
  79     //
  80     void notifyChildAdded(Inkscape::XML::Node &parent, Inkscape::XML::Node &child, Inkscape::XML::Node *prev);
  81
  82     void notifyChildRemoved(Inkscape::XML::Node &parent, Inkscape::XML::Node &child, Inkscape::XML::Node *prev);
  83
  84     void notifyChildOrderChanged(Inkscape::XML::Node &parent, Inkscape::XML::Node &child,
  85                                  Inkscape::XML::Node *old_prev, Inkscape::XML::Node *new_prev);
  86
  87     void notifyContentChanged(Inkscape::XML::Node &node,
  88                               Util::ptr_shared<char> old_content,
  89                               Util::ptr_shared<char> new_content);
  90
  91     void notifyAttributeChanged(Inkscape::XML::Node &node, GQuark name,
  92                                 Util::ptr_shared<char> old_value,
  93                                 Util::ptr_shared<char> new_value);
  94
  95 private:
  96
  97     InkboardSession(InkboardSession const &); // no copy
  98     void operator=(InkboardSession const &); // no assign
  99
 100     bool _in_transaction;
 101
 102     InkboardDocument *doc;
 103 };
 104
 105 }
 106
 107 }
 108
 109 #endif