diff options
Diffstat (limited to 'source/ManualBindings.cpp')
| -rw-r--r-- | source/ManualBindings.cpp | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/source/ManualBindings.cpp b/source/ManualBindings.cpp index c975997a5..4ed5c1a16 100644 --- a/source/ManualBindings.cpp +++ b/source/ManualBindings.cpp @@ -755,6 +755,157 @@ static int tolua_cPluginManager_GetAllPlugins(lua_State * tolua_S) +static int tolua_cPluginManager_AddHook_FnRef(cPluginManager * a_PluginManager, cLuaState & S, int a_ParamIdx) +{ + // Helper function for cPluginmanager:AddHook() binding + // Takes care of the new case (#121): args are HOOK_TYPE and CallbackFunction + // The arg types have already been checked + + // Retrieve the cPlugin from the LuaState: + cPluginLua * Plugin = GetLuaPlugin(S); + if (Plugin == NULL) + { + // An error message has been already printed in GetLuaPlugin() + return 0; + } + + // Retrieve and check the hook type + int HookType = (int)tolua_tonumber(S, a_ParamIdx, -1); + if (!a_PluginManager->IsValidHookType(HookType)) + { + LOGWARNING("cPluginManager.AddHook(): Invalid HOOK_TYPE parameter: %d", HookType); + S.LogStackTrace(); + return 0; + } + + // Add the hook to the plugin + if (!Plugin->AddHookRef(HookType, a_ParamIdx + 1)) + { + LOGWARNING("cPluginManager.AddHook(): Cannot add hook %d, unknown error.", HookType); + S.LogStackTrace(); + return 0; + } + a_PluginManager->AddHook(Plugin, HookType); + + // Success + return 0; +} + + + + + +static int tolua_cPluginManager_AddHook_DefFn(cPluginManager * a_PluginManager, cLuaState & S, int a_ParamIdx) +{ + // Helper function for cPluginmanager:AddHook() binding + // Takes care of the old case (#121): args are cPluginLua and HOOK_TYPE + // The arg types have already been checked + + // Retrieve and check the cPlugin parameter + cPluginLua * Plugin = (cPluginLua *)tolua_tousertype(S, a_ParamIdx, NULL); + if (Plugin == NULL) + { + LOGWARNING("cPluginManager.AddHook(): Invalid Plugin parameter, expected a valid cPlugin object. Hook not added"); + S.LogStackTrace(); + return 0; + } + if (Plugin != GetLuaPlugin(S)) + { + // The plugin parameter passed to us is not our stored plugin. Disallow this! + LOGWARNING("cPluginManager.AddHook(): Invalid Plugin parameter, cannot add hook to foreign plugins. Hook not added."); + S.LogStackTrace(); + return 0; + } + + // Retrieve and check the hook type + int HookType = (int)tolua_tonumber(S, a_ParamIdx + 1, -1); + if (!a_PluginManager->IsValidHookType(HookType)) + { + LOGWARNING("cPluginManager.AddHook(): Invalid HOOK_TYPE parameter: %d", HookType); + S.LogStackTrace(); + return 0; + } + + // Get the standard name for the callback function: + const char * FnName = cPluginLua::GetHookFnName(HookType); + if (FnName == NULL) + { + LOGWARNING("cPluginManager.AddHook(): Unknown hook type (%d). Hook not added.", HookType); + S.LogStackTrace(); + return 0; + } + + // Retrieve the function to call and add it to the plugin: + lua_pushstring(S, FnName); + bool res = Plugin->AddHookRef(HookType, 1); + lua_pop(S, 1); // Pop the function off the stack + if (!res) + { + LOGWARNING("cPluginManager.AddHook(): Function %s not found. Hook not added.", FnName); + S.LogStackTrace(); + return 0; + } + a_PluginManager->AddHook(Plugin, HookType); + + // Success + return 0; +} + + + + + +static int tolua_cPluginManager_AddHook(lua_State * tolua_S) +{ + /* + Function signatures: + cPluginManager.AddHook(HOOK_TYPE, CallbackFunction) -- (1) recommended + cPluginManager:Get():AddHook(HOOK_TYPE, CallbackFunction) -- (2) accepted silently + cPluginManager:Get():AddHook(Plugin, HOOK_TYPE) -- (3) old style (#121), accepted but complained about + cPluginManager.AddHook(Plugin, HOOK_TYPE) -- (4) old style (#121) mangled, accepted but complained about + */ + + cLuaState S(tolua_S); + cPluginManager * PlgMgr = cPluginManager::Get(); + + // If the first param is a cPluginManager, use it instead of the global one: + int ParamIdx = 1; + tolua_Error err; + if (tolua_isusertype(S, 1, "cPluginManager", 0, &err)) + { + // Style 2 or 3, retrieve the PlgMgr instance + PlgMgr = (cPluginManager *)tolua_tousertype(S, 1, NULL); + if (PlgMgr == NULL) + { + LOGWARNING("Malformed plugin, use cPluginManager.AddHook(HOOK_TYPE, CallbackFunction). Fixing the call for you."); + S.LogStackTrace(); + PlgMgr = cPluginManager::Get(); + } + ParamIdx += 1; + } + + if (lua_isnumber(S, ParamIdx) && lua_isfunction(S, ParamIdx + 1)) + { + // The next params are a number and a function, assume style 1 or 2 + return tolua_cPluginManager_AddHook_FnRef(PlgMgr, S, ParamIdx); + } + else if (tolua_isusertype(S, ParamIdx, "cPlugin", 0, &err) && lua_isnumber(S, ParamIdx + 1)) + { + // The next params are a cPlugin and a number, assume style 3 or 4 + return tolua_cPluginManager_AddHook_DefFn(PlgMgr, S, ParamIdx); + } + + AString ParamDesc; + Printf(ParamDesc, "%s, %s, %s", S.GetTypeText(1).c_str(), S.GetTypeText(2).c_str(), S.GetTypeText(3).c_str()); + LOGWARNING("cPluginManager.AddHook(): bad parameters. Expected HOOK_TYPE and CallbackFunction, got %s. Hook not added.", ParamDesc.c_str()); + S.LogStackTrace(); + return 0; +} + + + + + static int tolua_cPluginManager_ForEachCommand(lua_State * tolua_S) { int NumArgs = lua_gettop(tolua_S) - 1; /* This includes 'self' */ @@ -1699,6 +1850,7 @@ void ManualBindings::Bind(lua_State * tolua_S) tolua_function(tolua_S, "ForEachCommand", tolua_cPluginManager_ForEachCommand); tolua_function(tolua_S, "ForEachConsoleCommand", tolua_cPluginManager_ForEachConsoleCommand); tolua_function(tolua_S, "GetAllPlugins", tolua_cPluginManager_GetAllPlugins); + tolua_function(tolua_S, "AddHook", tolua_cPluginManager_AddHook); tolua_endmodule(tolua_S); tolua_beginmodule(tolua_S, "cPlayer"); |