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/*
* Copyright (c) 2012 Mateusz Piękos
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
#include <Swiften/Whiteboard/WhiteboardClient.h>
#include <Swiften/Whiteboard/WhiteboardTransformer.h>
#include <boost/smart_ptr/make_shared.hpp>
namespace Swift {
WhiteboardOperation::ref WhiteboardClient::handleLocalOperationReceived(WhiteboardOperation::ref operation) {
localOperations_.push_back(operation);
// if (bridge_.size() > 0) {
WhiteboardOperation::ref op = boost::make_shared<WhiteboardInsertOperation>(*boost::dynamic_pointer_cast<WhiteboardInsertOperation>(operation).get());
if (bridge_.size() > 0) {
op->setParentID(bridge_.back()->getID());
}
bridge_.push_back(op);
// }
if (lastSentOperationID_.empty())
{
WhiteboardOperation::ref op = boost::make_shared<WhiteboardInsertOperation>(*boost::dynamic_pointer_cast<WhiteboardInsertOperation>(operation).get());
if (serverOperations_.size() > 0) {
op->setParentID(serverOperations_.back()->getID());
}
lastSentOperationID_ = operation->getID();
return op;
} else {
return WhiteboardOperation::ref();
}
}
std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardClient::handleServerOperationReceived(WhiteboardOperation::ref operation) {
serverOperations_.push_back(operation);
WhiteboardOperation::ref clientOp;
WhiteboardOperation::ref serverOp;
// if (localOperations_.empty()) {// || localOperations_.back()->getID() == operation->getParentID()) {
//Situation where client and server are in sync
if (localOperations_.size() == serverOperations_.size()-1) {
localOperations_.push_back(operation);
clientOp = operation;
} else if (lastSentOperationID_ == operation->getID()) {
//Client received confirmation about own operation and it sends next operation to server
if (bridge_.size() > 0 && lastSentOperationID_ == bridge_.front()->getID()) {
bridge_.erase(bridge_.begin());
}
/*std::list<WhiteboardOperation::ref>::iterator it;
for (it = bridge_.begin(); it != bridge_.end(); ++it) {
if ((*it)->getParentID() == lastSentOperationID_) {
lastSentOperationID_ = (*it)->getID();
serverOp = *it;
serverOp->setOrigin(WhiteboardOperation::Other);
break;
}
}*/
if (bridge_.size() > 0 && (bridge_.front())->getParentID() == lastSentOperationID_) {
lastSentOperationID_ = (bridge_.front())->getID();
serverOp = bridge_.front();
serverOp->setOrigin(WhiteboardOperation::Other);
}
if (!serverOp) {
lastSentOperationID_.clear();
}
} else {
if (bridge_.size() > 0 && bridge_.front()->getParentID() == operation->getParentID()) {
std::list<WhiteboardOperation::ref>::iterator it = bridge_.begin();
std::pair<WhiteboardInsertOperation::ref, WhiteboardInsertOperation::ref> opPair;
WhiteboardInsertOperation::ref temp;
opPair = WhiteboardTransformer::transform(boost::dynamic_pointer_cast<WhiteboardInsertOperation>(*it), boost::dynamic_pointer_cast<WhiteboardInsertOperation>(operation));
temp = opPair.first;
*it = opPair.second;
std::string previousID = (*it)->getID();
++it;
for (; it != bridge_.end(); ++it) {
opPair = WhiteboardTransformer::transform(boost::dynamic_pointer_cast<WhiteboardInsertOperation>(*it), temp);
temp = opPair.first;
*it = opPair.second;
(*it)->setParentID(previousID);
previousID = (*it)->getID();
}
temp->setParentID(localOperations_.back()->getID());
localOperations_.push_back(temp);
clientOp = temp;
} else {
//doesn't get executed
std::list<WhiteboardOperation::ref>::reverse_iterator it;
std::pair<WhiteboardInsertOperation::ref, WhiteboardInsertOperation::ref> opPair;
WhiteboardInsertOperation::ref temp = boost::dynamic_pointer_cast<WhiteboardInsertOperation>(operation);
bool end = false;
for (it = localOperations_.rbegin(); it != localOperations_.rend(); ++it) {
while ((*it)->getParentID() == temp->getParentID()) {
opPair = WhiteboardTransformer::transform(boost::dynamic_pointer_cast<WhiteboardInsertOperation>(*it), temp);
if (bridge_.size() > 0) {
opPair.second->setParentID(bridge_.back()->getID());
}
temp = opPair.first;
bridge_.push_back(opPair.second);
if (it == localOperations_.rbegin()) {
localOperations_.push_back(temp);
clientOp = temp;
end = true;
break;
} else {
--it;
}
}
if (end) {
break;
}
}
}
}
return std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref>(clientOp, serverOp);
}
void WhiteboardClient::print() {
std::list<WhiteboardOperation::ref>::iterator it;
std::cout << "Client" << std::endl;
for(it = localOperations_.begin(); it != localOperations_.end(); ++it) {
std::cout << (*it)->getID() << " " << (*it)->getPos() << std::endl;
}
std::cout << "Server" << std::endl;
for(it = serverOperations_.begin(); it != serverOperations_.end(); ++it) {
std::cout << (*it)->getID() << " " << (*it)->getPos() << std::endl;
}
}
}
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Swift