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/**
* Inkscape::Whiteboard::InkboardSession - Whiteboard implementation of XML::Session
*
* Authors:
* David Yip <yipdw@rose-hulman.edu>
*
* Copyright (c) 2005 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include <glibmm.h>
#include <glib/gmessages.h>
#include <glib/gquark.h>
#include "jabber_whiteboard/inkboard-session.h"
#include "jabber_whiteboard/inkboard-document.h"
#include "jabber_whiteboard/defines.h"
#include "xml/node.h"
#include "xml/event.h"
#include "xml/element-node.h"
#include "xml/text-node.h"
#include "xml/comment-node.h"
#include "util/share.h"
#include "util/ucompose.hpp"
namespace Inkscape {
namespace Whiteboard {
using XML::Node;
void
InkboardSession::beginTransaction()
{
g_assert(!_in_transaction);
_in_transaction = true;
}
void
InkboardSession::rollback()
{
g_assert(_in_transaction);
_in_transaction = false;
}
void
InkboardSession::commit()
{
g_assert(_in_transaction);
_in_transaction = false;
}
XML::Event*
InkboardSession::commitUndoable()
{
g_assert(_in_transaction);
_in_transaction = false;
return NULL;
}
XML::Node*
InkboardSession::createElementNode(char const* name)
{
return new XML::ElementNode(g_quark_from_string(name));
}
XML::Node*
InkboardSession::createTextNode(char const* content)
{
return new XML::TextNode(Util::share_string(content));
}
XML::Node*
InkboardSession::createCommentNode(char const* content)
{
return new XML::CommentNode(Util::share_string(content));
}
void InkboardSession::notifyChildAdded(Node &parent,
Node &child,
Node *prev)
{
if (_in_transaction && doc->state == State::IN_WHITEBOARD) {
XML::Node *node = (XML::Node *)&child;
if(this->doc->tracker->get(node) == "")
{
this->doc->addNodeToTracker(node);
Message::Message message = this->doc->composeNewMessage(node);
this->doc->send(this->doc->getRecipient(),Message::NEW,message);
}
}
}
void InkboardSession::notifyChildRemoved(Node &parent,
Node &child,
Node *prev)
{
if (_in_transaction && doc->state == State::IN_WHITEBOARD)
{
XML::Node *element = (XML::Node *)&child;
Message::Message message = String::ucompose(Vars::REMOVE_MESSAGE,
this->doc->tracker->get(element));
this->doc->send(this->doc->getRecipient(),Message::REMOVE,message);
}
}
void InkboardSession::notifyChildOrderChanged(Node &parent,
Node &child,
Node *old_prev,
Node *new_prev)
{
if (_in_transaction && doc->state == State::IN_WHITEBOARD)
{
XML::Node *element = (XML::Node *)&child;
XML::Node *parentElement = (XML::Node *)&parent;
unsigned int index = parentElement->_childPosition(*element);
Message::Message message = String::ucompose(Vars::MOVE_MESSAGE,
this->doc->tracker->get(element),index);
this->doc->send(this->doc->getRecipient(),Message::MOVE,message);
}
}
void InkboardSession::notifyContentChanged(Node &node,
Util::ptr_shared<char> old_content,
Util::ptr_shared<char> new_content)
{
if (_in_transaction && doc->state == State::IN_WHITEBOARD)
{
XML::Node *element = (XML::Node *)&node;
Glib::ustring value(new_content.pointer());
Glib::ustring change = this->doc->tracker->getLastHistory(element,"text");
if(change.size() > 0 && change == value)
return;
if(new_content.pointer())
{
unsigned int version = this->doc->tracker->incrementVersion(element);
Message::Message message = String::ucompose(Vars::CONFIGURE_TEXT_MESSAGE,
this->doc->tracker->get(element),version,new_content.pointer());
this->doc->send(this->doc->getRecipient(),Message::CONFIGURE,message);
}
}
}
void InkboardSession::notifyAttributeChanged(Node &node,
GQuark name,
Util::ptr_shared<char> old_value,
Util::ptr_shared<char> new_value)
{
if (_in_transaction && doc->state == State::IN_WHITEBOARD)
{
XML::Node *element = (XML::Node *)&node;
Glib::ustring value(new_value.pointer());
Glib::ustring attribute(g_quark_to_string(name));
Glib::ustring change = this->doc->tracker->getLastHistory(element,attribute);
if(change.size() > 0 && change == value)
return;
if(attribute.size() > 0 && value.size() > 0)
{
unsigned int version = this->doc->tracker->incrementVersion(element);
Message::Message message = String::ucompose(Vars::CONFIGURE_MESSAGE,
this->doc->tracker->get(element),version,attribute.c_str(),value.c_str());
this->doc->send(this->doc->getRecipient(),Message::CONFIGURE,message);
}
}
}
}
}
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