1 files changed, 91 insertions, 0 deletions
diff --git a/Swiften/Whiteboard/WhiteboardClient.cpp b/Swiften/Whiteboard/WhiteboardClient.cpp
new file mode 100644
index 0000000..6b352f5
--- /dev/null
+++ b/Swiften/Whiteboard/WhiteboardClient.cpp
@@ -0,0 +1,91 @@
+/*
+ * 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>
+
+namespace Swift {
+	WhiteboardOperation::ref WhiteboardClient::handleLocalOperationReceived(WhiteboardOperation::ref operation) {
+		localOperations_.push_back(operation);
+		if (lastSentOperationID_.empty())
+		{
+			lastSentOperationID_ = operation->getID();
+			return operation;
+		}
+		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()) {
+			localOperations_.push_back(operation);
+			clientOp = operation;
+		} else if (lastSentOperationID_ == operation->getID()) {
+			std::list<WhiteboardOperation::ref>::iterator it;
+			for (it = bridge_.begin(); it != bridge_.end(); ++it) {
+				if ((*it)->getParentID() == lastSentOperationID_) {
+					lastSentOperationID_ = (*it)->getID();
+					serverOperations_.push_back(*it);
+					serverOp = *it;
+					serverOp->setOrigin(WhiteboardOperation::Other);
+					break;
+				}
+			}
+		} 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 {
+				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);
+	}
+}