src/jabber_whiteboard/serializer.h

   1 /**
   2  * Inkboard message -> XML::Event* serializer
   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 __WHITEBOARD_MESSAGE_SERIALIZER_H__
  13 #define __WHITEBOARD_MESSAGE_SERIALIZER_H__
  14
  15 #include "xml/node-observer.h"
  16
  17 #include "util/share.h"
  18
  19 #include "jabber_whiteboard/node-tracker.h"
  20 #include "jabber_whiteboard/typedefs.h"
  21 #include "jabber_whiteboard/node-tracker-observer.h"
  22
  23 #include <map>
  24
  25 namespace Inkscape {
  26
  27 namespace Whiteboard {
  28
  29 class Serializer : public NodeTrackerObserver {
  30 public:
  31         Serializer(XMLNodeTracker* xnt) : NodeTrackerObserver(xnt) { }
  32         ~Serializer() { }
  33
  34     void notifyChildAdded(XML::Node &node, XML::Node &child, XML::Node *prev);
  35
  36     void notifyChildRemoved(XML::Node &node, XML::Node &child, XML::Node *prev);
  37
  38     void notifyChildOrderChanged(XML::Node &node, XML::Node &child,
  39                                          XML::Node *old_prev, XML::Node *new_prev);
  40
  41     void notifyContentChanged(XML::Node &node,
  42                                       Util::ptr_shared<char> old_content,
  43                                       Util::ptr_shared<char> new_content);
  44
  45     void notifyAttributeChanged(XML::Node &node, GQuark name,
  46                                         Util::ptr_shared<char> old_value,
  47                                         Util::ptr_shared<char> new_value);
  48
  49         void synthesizeChildNodeAddEvents();
  50
  51         SerializedEventList& getEventList()
  52         {
  53                 return this->_events;
  54         }
  55
  56         SerializedEventList getEventListCopy()
  57         {
  58                 return this->_events;
  59         }
  60
  61         SerializedEventList getAndClearEventList()
  62         {
  63                 SerializedEventList ret = this->_events;
  64                 this->_events.clear();
  65                 return ret;
  66         }
  67
  68         void clearEventList()
  69         {
  70                 this->_events.clear();
  71         }
  72
  73         void clearAttributesScannedBuffer()
  74         {
  75                 this->_attributes_scanned.clear();
  76         }
  77
  78         // Convenience method for resetting all stateful aspects of the serializer
  79         void reset()
  80         {
  81                 g_log(NULL, G_LOG_LEVEL_DEBUG, "Clearing serializer buffers");
  82                 this->clearEventList();
  83                 this->_parent_child_map.clear();
  84                 this->_nn.clear();
  85                 this->clearNodeBuffers();
  86                 this->clearAttributesScannedBuffer();
  87         }
  88
  89 private:
  90         typedef std::set< XML::Node* > _New_nodes_type;
  91         typedef std::map< XML::Node*, XML::Node* > _pc_map_type;
  92
  93         SerializedEventList _events;
  94         AttributesScannedSet _attributes_scanned;
  95
  96         _New_nodes_type _nn;
  97         _pc_map_type _parent_child_map;
  98
  99         void _newObjectEventHelper(XML::Node& parent, XML::Node& child, XML::Node* prev, bool recurse);
 100         void _recursiveMarkAsRemoved(XML::Node& node);
 101 };
 102
 103 }
 104
 105 }
 106
 107 #endif
 108
 109 /*
 110   Local Variables:
 111   mode:c++
 112   c-file-style:"stroustrup"
 113   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 114   indent-tabs-mode:nil
 115   fill-column:99
 116   End:
 117 */
 118 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :