wxString wxLuaEventCallback::Connect(const wxLuaState& wxlState, int lua_func_stack_idx,
wxWindowID win_id, wxWindowID last_id,
wxEventType eventType, wxEvtHandler *evtHandler)
{
// Assert too since these errors are serious and not just bad Lua code.
wxCHECK_MSG(evtHandler != NULL, wxT("Invalid wxEvtHandler in wxLuaEventCallback::Connect()"), wxT("Invalid wxEvtHandler in wxLuaEventCallback::Connect()"));
wxCHECK_MSG((m_evtHandler == NULL) && (m_luafunc_ref == 0), wxT("Attempting to reconnect a wxLuaEventCallback"), wxT("Attempting to reconnect a wxLuaEventCallback"));
wxCHECK_MSG(wxlState.Ok(), wxT("Invalid wxLuaState"), wxT("Invalid wxLuaState"));
// NOTE: See below about how we use the root lua_State to avoid these problems.
// We must always be installed into the main lua_State, never a coroutine
// 1) It will be called only when the lua_State is suspended or dead
// 2) We have no way of tracking when the coroutine state is garbage collected/dead
//if (lua_pushthread(wxlState.GetLuaState()) != 1)
//{
// wxlState.lua_Pop(1);
// return wxT("wxLua: Creating a callback function in a coroutine is not allowed since it will only be called when the thread is either suspended or dead.");
//}
//wxlState.lua_Pop(1);
m_wxlState = wxlState;
m_evtHandler = evtHandler;
m_id = win_id;
m_last_id = last_id;
// NOTE: FIXME? We look for the wxLuaBindEvent in all of the bindings, but it
// may not have actually been installed if someone had modified the bindings.
// It should be ok since it will error out soon enough without crashing.
m_wxlBindEvent = wxLuaBinding::FindBindEvent(eventType);
// Do not install this invalid or unknown event type since we won't know
// what wxEvent type class to use and someone probably made a mistake.
if (m_wxlBindEvent == NULL)
{
return wxString::Format(wxT("wxLua: Invalid or unknown wxEventType %d for wxEvtHandler::Connect(). winIds %d, %d."),
(int)eventType, win_id, last_id);
}
m_wxlState.AddTrackedEventCallback(this);
// create a reference to the Lua event handler function
if (lua_func_stack_idx != WXLUAEVENTCALLBACK_NOROUTINE)
m_luafunc_ref = m_wxlState.wxluaR_Ref(lua_func_stack_idx, &wxlua_lreg_refs_key);
// Note: We use the callback userdata and not the event sink since the event sink
// requires a wxEvtHandler object which is a fairly large class.
// The userdata (i.e. this) is also deleted for us which makes our life easier.
m_evtHandler->Connect(win_id, last_id, eventType,
(wxObjectEventFunction)&wxLuaEventCallback::OnAllEvents,
this);
// We always must run the function in the main lua_State.
// See above about the problems not doing so...
// Note saving the main lua_State to use in the callback may not always work
// and if a problem is found we need to resort to blocking connecting event
// handlers in coroutines as was done before.
m_wxlState = wxLuaState(wxlState.GetLuaState(), wxLUASTATE_GETSTATE|wxLUASTATE_ROOTSTATE);
return wxEmptyString;
}
bool HandlrApp::OnInit() {
#ifdef __WXGTK__
setlocale(LC_NUMERIC, "C");
#endif
wxString logDir;
#ifdef H_PORTABLE
logDir = wxStandardPaths::Get().GetLocalDataDir();
#else
logDir = wxStandardPaths::Get().GetUserDataDir();
#endif
#ifndef H_DEBUG
wxString logPath = logDir + wxFileName::GetPathSeparator() + _T("handlr.log");
FILE* logFile = fopen (logPath.mb_str(), "a");
wxLogStderr* logger = new wxLogStderr (logFile);
wxLog::SetActiveTarget (logger);
#endif
wxInitAllImageHandlers();
WXLUA_IMPLEMENT_BIND_STD
wxLuaState::sm_wxAppMainLoop_will_run = true;
m_wxlState = wxLuaState(this, wxID_ANY);
if (!m_wxlState.Ok())
return false;
m_wxlState.lua_PushString(logDir.mb_str());
m_wxlState.lua_SetGlobal("H_DIR");
#include "handlr.h"
wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
if (node)
return true;
return false;
}
bool wxLuaFreezeApp::OnInit()
{
#ifdef __WXGTK__
// this call is very important since otherwise scripts using the decimal
// point '.' could not work with those locales which use a different symbol
// (e.g. the comma) for the decimal point...
// It doesn't work to put os.setlocale('c', 'numeric') in the Lua file that
// you want to use decimal points in. That's because the file has been lexed
// and compiler before the locale has changed, so the lexer - the part that
// recognises numbers - will use the old locale.
setlocale(LC_NUMERIC, "C");
#endif
// load all image handlers for the wxLua script to make things easy
wxInitAllImageHandlers();
// Initialize the wxLua bindings we want to use.
// See notes for WXLUA_DECLARE_BIND_ALL above.
WXLUA_IMPLEMENT_BIND_ALL
m_fileName = argv[0]; // the filename of 'this' program
// When this function returns wxApp:MainLoop() will be called by wxWidgets
// and so we want the Lua code wx.wxGetApp:MailLoop() to not
// prematurely start it.
wxLuaState::sm_wxAppMainLoop_will_run = true;
m_wxlState = wxLuaState(this, wxID_ANY);
if (!m_wxlState.Ok())
return false;
// if no script attached try to run a the program on the command line
if (LoadScript(m_fileName, true) == LOADSCRIPT_MISSING)
{
if (argc > 1)
{
wxlua_pushargs(m_wxlState.GetLuaState(), argv, argc, 1);
// just run it, lua gives a nice error message on failure
m_wxlState.RunFile(argv[1]);
}
else
{
OutputPrint(wxString::Format(wxT("Expecting '<wxLuaFreeze:[script length]>' at end of '%s'.\n")
wxT("Did you forget to run wxluafreeze.lua to attach your script?\n")
wxT("You may run wxLua programs by specifying them on the command line."),
m_fileName.c_str()));
}
}
else
{
// now load our script to run that should have been appended to this file
// by wxluafreeze.lua
wxString script = LoadScript(m_fileName);
if (!script.IsEmpty())
{
wxlua_pushargs(m_wxlState.GetLuaState(), argv, argc, 0);
m_wxlState.RunString(script);
}
}
// no matter what - try to see any toplevel windows exist, if not then
// there's no way to exit so assume that the program is all done
wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
if (node)
return true;
return false;
}
