/* * Copyright (c) 2012 Mateusz Piękos * Licensed under the simplified BSD license. * See Documentation/Licenses/BSD-simplified.txt for more information. */ /* * Copyright (c) 2016 Isode Limited. * All rights reserved. * See the COPYING file for more information. */ #include <Swiften/Whiteboard/WhiteboardTransformer.h> #include <memory> namespace Swift { std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardOperation::ref clientOp, WhiteboardOperation::ref serverOp) { WhiteboardInsertOperation::ref clientInsert = std::dynamic_pointer_cast<WhiteboardInsertOperation>(clientOp); WhiteboardInsertOperation::ref serverInsert = std::dynamic_pointer_cast<WhiteboardInsertOperation>(serverOp); WhiteboardUpdateOperation::ref clientUpdate = std::dynamic_pointer_cast<WhiteboardUpdateOperation>(clientOp); WhiteboardUpdateOperation::ref serverUpdate = std::dynamic_pointer_cast<WhiteboardUpdateOperation>(serverOp); WhiteboardDeleteOperation::ref clientDelete = std::dynamic_pointer_cast<WhiteboardDeleteOperation>(clientOp); WhiteboardDeleteOperation::ref serverDelete = std::dynamic_pointer_cast<WhiteboardDeleteOperation>(serverOp); if (clientInsert && serverInsert) { return transform(clientInsert, serverInsert); } else if (clientUpdate && serverUpdate) { return transform(clientUpdate, serverUpdate); } else if (clientInsert && serverUpdate) { return transform(clientInsert, serverUpdate); } else if (clientUpdate && serverInsert) { return transform(clientUpdate, serverInsert); } else if (clientDelete && serverDelete) { return transform(clientDelete, serverDelete); } else if (clientInsert && serverDelete) { return transform(clientInsert, serverDelete); } else if (clientDelete && serverInsert) { return transform(clientDelete, serverInsert); } else if (clientUpdate && serverDelete) { return transform(clientUpdate, serverDelete); } else if (clientDelete && serverUpdate) { return transform(clientDelete, serverUpdate); } else { return std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref>(); } } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardInsertOperation::ref clientOp, WhiteboardInsertOperation::ref serverOp) { std::pair<WhiteboardInsertOperation::ref, WhiteboardInsertOperation::ref> result; result.first = std::make_shared<WhiteboardInsertOperation>(*serverOp); result.first->setParentID(clientOp->getID()); result.second = std::make_shared<WhiteboardInsertOperation>(*clientOp); result.second->setParentID(serverOp->getID()); if (clientOp->getPos() <= serverOp->getPos()) { result.first->setPos(result.first->getPos()+1); } else { result.second->setPos(result.second->getPos()+1); } return result; } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardUpdateOperation::ref clientOp, WhiteboardUpdateOperation::ref serverOp) { std::pair<WhiteboardUpdateOperation::ref, WhiteboardUpdateOperation::ref> result; result.first = std::make_shared<WhiteboardUpdateOperation>(*serverOp); result.first->setParentID(clientOp->getID()); if (clientOp->getPos() == serverOp->getPos()) { result.second = std::make_shared<WhiteboardUpdateOperation>(*serverOp); result.second->setID(clientOp->getID()); result.second->setParentID(serverOp->getID()); } else { result.second = std::make_shared<WhiteboardUpdateOperation>(*clientOp); result.second->setParentID(serverOp->getID()); } if (clientOp->getPos() < serverOp->getPos() && clientOp->getNewPos() > serverOp->getPos()) { result.first->setPos(result.first->getPos()-1); if (clientOp->getNewPos() >= serverOp->getNewPos()) { result.first->setNewPos(result.first->getNewPos()-1); } } else if (clientOp->getNewPos() >= serverOp->getNewPos()) { result.first->setNewPos(result.first->getNewPos()-1); } if (serverOp->getPos() < clientOp->getPos() && serverOp->getNewPos() > clientOp->getPos()) { result.second->setPos(result.second->getPos()-1); if (serverOp->getNewPos() >= clientOp->getNewPos()) { result.second->setNewPos(result.second->getNewPos()-1); } } else if (serverOp->getNewPos() >= clientOp->getNewPos()) { result.second->setNewPos(result.second->getNewPos()-1); } return result; } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardUpdateOperation::ref clientOp, WhiteboardInsertOperation::ref serverOp) { std::pair<WhiteboardInsertOperation::ref, WhiteboardUpdateOperation::ref> result; result.first = std::make_shared<WhiteboardInsertOperation>(*serverOp); result.first->setParentID(clientOp->getID()); result.second = std::make_shared<WhiteboardUpdateOperation>(*clientOp); result.second->setParentID(serverOp->getID()); if (serverOp->getPos() <= clientOp->getPos()) { result.second->setPos(result.second->getPos()+1); } return result; } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardInsertOperation::ref clientOp, WhiteboardUpdateOperation::ref serverOp) { std::pair<WhiteboardUpdateOperation::ref, WhiteboardInsertOperation::ref> result; result.first = std::make_shared<WhiteboardUpdateOperation>(*serverOp); result.first->setParentID(clientOp->getID()); result.second = std::make_shared<WhiteboardInsertOperation>(*clientOp); result.second->setParentID(serverOp->getID()); if (serverOp->getPos() >= clientOp->getPos()) { result.first->setPos(result.first->getPos()+1); } return result; } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardDeleteOperation::ref clientOp, WhiteboardDeleteOperation::ref serverOp) { std::pair<WhiteboardDeleteOperation::ref, WhiteboardDeleteOperation::ref> result; result.first = std::make_shared<WhiteboardDeleteOperation>(*serverOp); result.first->setParentID(clientOp->getID()); result.second = std::make_shared<WhiteboardDeleteOperation>(*clientOp); result.second->setParentID(serverOp->getID()); if (clientOp->getPos() == -1) { result.second->setPos(-1); } if (serverOp->getPos() == -1) { result.first->setPos(-1); } if (clientOp->getPos() < serverOp->getPos()) { result.first->setPos(result.first->getPos()-1); } else if (clientOp->getPos() > serverOp->getPos()) { result.second->setPos(result.second->getPos()-1); } else { result.first->setPos(-1); result.second->setPos(-1); } return result; } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardInsertOperation::ref clientOp, WhiteboardDeleteOperation::ref serverOp) { std::pair<WhiteboardDeleteOperation::ref, WhiteboardInsertOperation::ref> result; result.first = std::make_shared<WhiteboardDeleteOperation>(*serverOp); result.first->setParentID(clientOp->getID()); result.second = std::make_shared<WhiteboardInsertOperation>(*clientOp); result.second->setParentID(serverOp->getID()); if (clientOp->getPos() <= serverOp->getPos()) { result.first->setPos(result.first->getPos()+1); } else if (serverOp->getPos() != -1) { result.second->setPos(result.second->getPos()-1); } return result; } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardDeleteOperation::ref clientOp, WhiteboardInsertOperation::ref serverOp) { std::pair<WhiteboardInsertOperation::ref, WhiteboardDeleteOperation::ref> result; result.first = std::make_shared<WhiteboardInsertOperation>(*serverOp); result.first->setParentID(clientOp->getID()); result.second = std::make_shared<WhiteboardDeleteOperation>(*clientOp); result.second->setParentID(serverOp->getID()); if (serverOp->getPos() <= clientOp->getPos()) { result.second->setPos(result.second->getPos()+1); } else if (clientOp->getPos() != -1) { result.first->setPos(result.first->getPos()-1); } return result; } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardUpdateOperation::ref clientOp, WhiteboardDeleteOperation::ref serverOp) { std::pair<WhiteboardDeleteOperation::ref, WhiteboardOperation::ref> result; result.first = std::make_shared<WhiteboardDeleteOperation>(*serverOp); result.first->setParentID(clientOp->getID()); WhiteboardUpdateOperation::ref updateOp = std::make_shared<WhiteboardUpdateOperation>(*clientOp); result.second = updateOp; result.second->setParentID(serverOp->getID()); if (clientOp->getPos() == serverOp->getPos()) { WhiteboardDeleteOperation::ref deleteOp = std::make_shared<WhiteboardDeleteOperation>(); result.second = deleteOp; result.second->setPos(-1); result.second->setID(clientOp->getID()); result.second->setParentID(serverOp->getID()); deleteOp->setElementID(serverOp->getElementID()); } else if (clientOp->getPos() > serverOp->getPos() && clientOp->getNewPos() <= serverOp->getPos()) { result.second->setPos(result.second->getPos()-1); } else if (clientOp->getPos() < serverOp->getPos() && clientOp->getNewPos() >= serverOp->getPos()) { updateOp->setNewPos(updateOp->getNewPos()-1); } else if (clientOp->getPos() > serverOp->getPos()) { result.second->setPos(result.second->getPos()-1); updateOp->setNewPos(updateOp->getNewPos()-1); } return result; } std::pair<WhiteboardOperation::ref, WhiteboardOperation::ref> WhiteboardTransformer::transform(WhiteboardDeleteOperation::ref clientOp, WhiteboardUpdateOperation::ref serverOp) { std::pair<WhiteboardOperation::ref, WhiteboardDeleteOperation::ref> result; WhiteboardUpdateOperation::ref updateOp = std::make_shared<WhiteboardUpdateOperation>(*serverOp); result.first = updateOp; result.first->setParentID(clientOp->getID()); result.second = std::make_shared<WhiteboardDeleteOperation>(*clientOp); result.second->setParentID(serverOp->getID()); if (clientOp->getPos() == serverOp->getPos()) { WhiteboardDeleteOperation::ref deleteOp = std::make_shared<WhiteboardDeleteOperation>(); result.first = deleteOp; result.first->setPos(-1); result.first->setID(serverOp->getID()); result.first->setParentID(clientOp->getID()); deleteOp->setElementID(clientOp->getElementID()); } else if (clientOp->getPos() < serverOp->getPos() && clientOp->getPos() >= serverOp->getNewPos()) { result.first->setPos(result.first->getPos()-1); } else if (clientOp->getPos() > serverOp->getPos() && clientOp->getPos() <= serverOp->getNewPos()) { updateOp->setNewPos(updateOp->getNewPos()-1); } else if (clientOp->getPos() < serverOp->getPos()) { result.first->setPos(result.first->getPos()-1); updateOp->setNewPos(updateOp->getNewPos()-1); } return result; } }