mirror of
https://github.com/GabsPuNs/Project-Zenith-Main.git
synced 2026-07-10 18:18:27 +00:00
122 lines
2.8 KiB
C++
122 lines
2.8 KiB
C++
#include "LuaDocumentElementInstancer.h"
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#include "LuaEventListenerInstancer.h"
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#include "LuaPlugin.h"
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#include <RmlUi/Core/Core.h>
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#include <RmlUi/Core/FileInterface.h>
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#include <RmlUi/Core/Log.h>
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#include <RmlUi/Lua/Interpreter.h>
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#include <RmlUi/Lua/LuaType.h>
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namespace Rml {
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namespace Lua {
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static int ErrorHandler(lua_State* L)
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{
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const char* msg = lua_tostring(L, 1);
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if (msg == NULL)
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{
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if (luaL_callmeta(L, 1, "__tostring") && lua_type(L, -1) == LUA_TSTRING)
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return 1;
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else
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msg = lua_pushfstring(L, "(error object is a %s value)", luaL_typename(L, 1));
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}
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luaL_traceback(L, L, msg, 1);
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return 1;
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}
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static bool LuaCall(lua_State* L, int nargs, int nresults)
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{
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int errfunc = -2 - nargs;
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lua_pushcfunction(L, ErrorHandler);
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lua_insert(L, errfunc);
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if (lua_pcall(L, nargs, nresults, errfunc) != LUA_OK)
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{
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Log::Message(Log::LT_WARNING, "%s", lua_tostring(L, -1));
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lua_pop(L, 2);
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return false;
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}
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lua_remove(L, -1 - nresults);
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return true;
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}
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lua_State* Interpreter::GetLuaState()
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{
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return LuaPlugin::GetLuaState();
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}
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bool Interpreter::LoadFile(const String& file)
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{
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lua_State* L = GetLuaState();
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// use the file interface to get the contents of the script
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FileInterface* file_interface = GetFileInterface();
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FileHandle handle = file_interface->Open(file);
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if (handle == 0)
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{
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Log::Message(Log::LT_WARNING, "LoadFile: Unable to open file: %s", file.c_str());
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return false;
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}
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size_t size = file_interface->Length(handle);
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if (size == 0)
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{
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Log::Message(Log::LT_WARNING, "LoadFile: File is 0 bytes in size: %s", file.c_str());
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return false;
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}
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UniquePtr<char[]> file_contents(new char[size]);
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file_interface->Read(file_contents.get(), size, handle);
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file_interface->Close(handle);
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if (luaL_loadbuffer(L, file_contents.get(), size, ("@" + file).c_str()) != 0)
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{
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Log::Message(Log::LT_WARNING, "%s", lua_tostring(L, -1));
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lua_pop(L, 1);
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return false;
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}
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return LuaCall(L, 0, 0);
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;
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}
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bool Interpreter::DoString(const String& code, const String& name)
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{
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lua_State* L = GetLuaState();
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return LoadString(code, name) && LuaCall(L, 0, 0);
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}
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bool Interpreter::LoadString(const String& code, const String& name)
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{
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lua_State* L = GetLuaState();
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if (luaL_loadbuffer(L, code.c_str(), code.length(), name.c_str()) != 0)
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{
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Log::Message(Log::LT_WARNING, "%s", lua_tostring(L, -1));
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lua_pop(L, 1);
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return false;
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}
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return true;
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}
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void Interpreter::BeginCall(int funRef)
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{
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lua_State* L = GetLuaState();
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lua_settop(L, 0); // empty stack
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// lua_getref(g_L,funRef);
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lua_rawgeti(L, LUA_REGISTRYINDEX, (int)funRef);
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}
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bool Interpreter::ExecuteCall(int params, int res)
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{
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lua_State* L = GetLuaState();
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return LuaCall(L, params, res);
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}
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void Interpreter::EndCall(int res)
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{
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lua_State* L = GetLuaState();
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lua_pop(L, res);
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}
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} // namespace Lua
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} // namespace Rml
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