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#include "UnityPrefix.h"
#include "MessageHandler.h"
#include "Runtime/Utilities/LogAssert.h"
#include <map>
#include <list>
using namespace std;
MessageForwarder::MessageForwarder ()
{
m_GeneralMessage = NULL;
m_CanHandleGeneralMessage = NULL;
}
void MessageForwarder::HandleMessage (void* receiver, int messageID, MessageData& messageData)
{
MessageCallback messagePtr = m_GeneralMessage;
if (messageID < m_SupportedMessages.size () && m_SupportedMessages[messageID] != NULL)
messagePtr = m_SupportedMessages[messageID];
AssertIf (messagePtr == NULL);
messagePtr (receiver, messageID, messageData);
}
bool MessageForwarder::HasMessageCallback (const MessageIdentifier& identifier)
{
if (identifier.messageID < m_SupportedMessages.size () && m_SupportedMessages[identifier.messageID])
return true;
else
return m_GeneralMessage != NULL && (identifier.options & MessageIdentifier::kSendToScripts);
}
bool MessageForwarder::WillHandleMessage (void* receiver, const MessageIdentifier& identifier)
{
if (identifier.messageID < m_SupportedMessages.size () && m_SupportedMessages[identifier.messageID])
return true;
if (m_GeneralMessage && (identifier.options & MessageIdentifier::kSendToScripts))
{
AssertIf (m_CanHandleGeneralMessage == NULL);
MessageData data;
return m_CanHandleGeneralMessage (receiver, identifier.messageID, data);
}
return false;
}
int MessageForwarder::GetExpectedParameter (int messageID)
{
if (messageID < m_SupportedMessages.size ())
return m_SupportedMessagesParameter[messageID];
else
return 0;
}
void MessageForwarder::RegisterMessageCallback (int messageID, MessageCallback message, int classId)
{
AssertIf (messageID == -1);
if (messageID >= m_SupportedMessages.size ())
{
m_SupportedMessages.resize (messageID + 1, NULL);
m_SupportedMessagesParameter.resize (messageID + 1, 0);
}
m_SupportedMessages[messageID] = message;
m_SupportedMessagesParameter[messageID] = classId;
}
void MessageForwarder::RegisterAllMessagesCallback (MessageCallback message, CanHandleMessageCallback canHandle)
{
m_GeneralMessage = message;
m_CanHandleGeneralMessage = canHandle;
}
void MessageForwarder::AddBaseMessages (const MessageForwarder& baseClass)
{
int maxsize = max (m_SupportedMessages.size (), baseClass.m_SupportedMessages.size ());
m_SupportedMessages.resize (maxsize, NULL);
m_SupportedMessagesParameter.resize (maxsize, 0);
for (int i=0;i<m_SupportedMessages.size ();i++)
{
if (m_SupportedMessages[i] == NULL && i < baseClass.m_SupportedMessages.size ())
{
m_SupportedMessages[i] = baseClass.m_SupportedMessages[i];
m_SupportedMessagesParameter[i] = baseClass.m_SupportedMessagesParameter[i];
}
}
if (m_GeneralMessage == NULL)
m_GeneralMessage = baseClass.m_GeneralMessage;
}
void MessageHandler::InitializeMessageIdentifiers ()
{
MessageIdentifier::RegisteredMessages& identifiers = MessageIdentifier::GetRegisteredMessages ();
MessageIdentifier::SortedMessages sortedMessages = MessageIdentifier::GetSortedMessages(false);
m_MessageIDToIdentifier.clear ();
m_MessageNameToIndex.clear ();
// Build m_MessageIDToName and m_MessageNameToIndex
// by copying the data from the sorted messages map
m_MessageIDToIdentifier.resize (sortedMessages.size ());
int index = 0;
MessageIdentifier::SortedMessages::iterator i;
for (i = sortedMessages.begin ();i != sortedMessages.end ();i++)
{
m_MessageNameToIndex[i->first] = index;
m_MessageIDToIdentifier[index] = i->second;
m_MessageIDToIdentifier[index].messageID = index;
index++;
}
// Setup the messageIDs of all registered message Identifiers
MessageIdentifier::RegisteredMessages::iterator j;
for (j = identifiers.begin ();j != identifiers.end ();j++)
{
AssertIf (*j == NULL);
MessageIdentifier& identifier = **j;
if (m_MessageNameToIndex.count (identifier.messageName))
{
identifier.messageID = m_MessageNameToIndex[identifier.messageName];
}
}
}
void MessageHandler::Initialize (const MessageForwarders& receivers)
{
m_Forwarder = receivers;
m_MessageCount = m_MessageNameToIndex.size ();
m_ClassCount = receivers.size ();
// Precalculate supported messages
m_SupportedMessages.resize (m_ClassCount * m_MessageCount);
for (int c=0;c<m_ClassCount;c++)
{
for (int m=0;m<m_MessageCount;m++)
{
bool hasCallback = m_Forwarder[c].HasMessageCallback (m_MessageIDToIdentifier[m]);
if (hasCallback)
{
// Check if the parameter is correct and print an error if they dont match
int wantedParameter = m_Forwarder[c].GetExpectedParameter (m);
int messageParameter = m_MessageIDToIdentifier[m].parameterClassId;
if (wantedParameter != 0 && messageParameter != wantedParameter)
{
char buffy[4096];
char const format[] = "The message: %s in the class with "
"classID: %d uses a parameter type "
"that is different from the "
"message's parameter type: %d != %d.";
sprintf (buffy, format, m_MessageIDToIdentifier[m].messageName,
c, wantedParameter, messageParameter);
ErrorString (buffy);
hasCallback = false;
}
}
m_SupportedMessages[m * m_ClassCount + c] = hasCallback;
}
}
}
bool MessageHandler::WillHandleMessage (void* receiver, int classID, int messageID)
{
AssertIf (!HasMessageCallback (classID, messageID));
return m_Forwarder[classID].WillHandleMessage (receiver, m_MessageIDToIdentifier[messageID]);
}
int MessageHandler::MessageNameToID (const string& name)
{
MessageNameToIndex::iterator i = m_MessageNameToIndex.find (name);
if (i == m_MessageNameToIndex.end ())
return -1;
else
return i->second;
}
const char* MessageHandler::MessageIDToName (int messageID)
{
AssertIf (messageID < 0);
AssertIf (messageID >= m_MessageIDToIdentifier.size ());
return m_MessageIDToIdentifier[messageID].messageName;
}
int MessageHandler::MessageIDToParameter (int messageID)
{
AssertIf (messageID < 0);
AssertIf (messageID >= m_MessageIDToIdentifier.size ());
return m_MessageIDToIdentifier[messageID].parameterClassId;
}
MessageIdentifier MessageHandler::MessageIDToMessageIdentifier (int messageID)
{
AssertIf (messageID < 0);
AssertIf (messageID >= m_MessageIDToIdentifier.size ());
return m_MessageIDToIdentifier[messageID];
}
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