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◆ main openmsx / src / commands / TclCallback.cc
2.6 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
e8555c89 Andy McCall 1 
#include "TclCallback.hh"
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#include "CommandController.hh"
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#include "CommandException.hh"
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#include "GlobalCommandController.hh"
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#include "CliComm.hh"
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#include "Reactor.hh"
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#include "checked_cast.hh"
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#include <iostream>
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#include <memory>
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namespace openmsx {
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TclCallback::TclCallback(
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		CommandController& controller,
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		std::string_view name,
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		static_string_view description,
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		std::string_view defaultValue,
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		Setting::Save saveSetting,
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		bool isMessageCallback_)
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	: callbackSetting2(std::in_place,
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		controller, name, description, defaultValue,
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		saveSetting)
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	, callbackSetting(*callbackSetting2)
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	, isMessageCallback(isMessageCallback_)
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{
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}
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TclCallback::TclCallback(StringSetting& setting)
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	: callbackSetting(setting)
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	, isMessageCallback(false)
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{
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}
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TclObject TclCallback::getValue() const
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{
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	return getSetting().getValue();
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}
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TclObject TclCallback::execute() const
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{
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	const auto& callback = getValue();
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	if (callback.empty()) return {};
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	auto command = makeTclList(callback);
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	return executeCommon(command);
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}
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TclObject TclCallback::execute(int arg1) const
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{
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	const auto& callback = getValue();
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	if (callback.empty()) return {};
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	auto command = makeTclList(callback, arg1);
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	return executeCommon(command);
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}
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TclObject TclCallback::execute(int arg1, int arg2) const
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{
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	const auto& callback = getValue();
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	if (callback.empty()) return {};
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	auto command = makeTclList(callback, arg1, arg2);
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	return executeCommon(command);
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}
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TclObject TclCallback::execute(int arg1, std::string_view arg2) const
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{
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	const auto& callback = getValue();
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	if (callback.empty()) return {};
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	auto command = makeTclList(callback, arg1, arg2);
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	return executeCommon(command);
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}
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TclObject TclCallback::execute(std::string_view arg1, std::string_view arg2) const
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{
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	const auto& callback = getValue();
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	if (callback.empty()) return {};
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	auto command = makeTclList(callback, arg1, arg2);
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	return executeCommon(command);
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}
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TclObject TclCallback::executeCommon(TclObject& command) const
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{
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	try {
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		return command.executeCommand(callbackSetting.getInterpreter());
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	} catch (CommandException& e) {
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		auto message = strCat(
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			"Error executing callback function \"",
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			getSetting().getFullName(), "\": ", e.getMessage());
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		auto& commandController = getSetting().getCommandController();
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		if (!isMessageCallback) {
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			commandController.getCliComm().printWarning(message);
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		} else {
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			if (checked_cast<GlobalCommandController&>(commandController).getReactor().isFullyStarted()) {
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				std::cerr << message << '\n';
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			} else {
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				// This is a message callback that cannot be
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				// executed yet.
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				// Let the caller deal with this.
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				throw command;
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			}
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		}
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		return {};
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	}
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}
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} // namespace openmsx