Combine hotkeys with the same description into a single hotkey

src/hotkey.cpp

@@ -4,6 +4,119 @@
 #include <fstream>
 #include <regex>
 
+std::vector<std::weak_ptr<Hotkey>> Hotkey::_registeredHotkeys = {};
+uint32_t Hotkey::_hotkeyCounter = 1;
+
+std::shared_ptr<Hotkey> Hotkey::GetHotkey(const std::string &description,
+					  bool ignoreExistingHotkeys)
+{
+	// Clean up expired hotkeys
+	auto it = _registeredHotkeys.begin();
+	while (it != _registeredHotkeys.end()) {
+		if (it->expired()) {
+			it = _registeredHotkeys.erase(it);
+		} else {
+			it++;
+		}
+	}
+
+	// Check for existing hotkey with same description
+	for (const auto &h : _registeredHotkeys) {
+		auto hotkey = h.lock();
+		if (!hotkey) {
+			continue;
+		}
+		if (hotkey->_description == description) {
+			hotkey->_ignoreExistingHotkeys = ignoreExistingHotkeys;
+			return hotkey;
+		}
+	}
+
+	// Create new hotkey
+	auto hotkey = std::make_shared<Hotkey>(description);
+	_registeredHotkeys.emplace_back(hotkey);
+	hotkey->_ignoreExistingHotkeys = ignoreExistingHotkeys;
+	return hotkey;
+}
+
+Hotkey::Hotkey(const std::string &description) : _description(description)
+{
+	std::string name =
+		"macro_condition_hotkey_" + std::to_string(_hotkeyCounter);
+	_hotkeyID = obs_hotkey_register_frontend(
+		name.c_str(), _description.c_str(), Callback, this);
+	_hotkeyCounter++;
+}
+
+bool Hotkey::Save(obs_data_t *obj) const
+{
+	obs_data_set_string(obj, "desc", _description.c_str());
+	obs_data_array_t *hotkeyData = obs_hotkey_save(_hotkeyID);
+	obs_data_set_array(obj, "keyBind", hotkeyData);
+	obs_data_array_release(hotkeyData);
+	return true;
+}
+
+bool Hotkey::Load(obs_data_t *obj)
+{
+	auto description = obs_data_get_string(obj, "desc");
+	if (!DescriptionAvailable(description)) {
+		return false;
+	}
+	_description = description;
+	obs_data_array_t *hotkeyData = obs_data_get_array(obj, "keyBind");
+	obs_hotkey_load(_hotkeyID, hotkeyData);
+	obs_data_array_release(hotkeyData);
+	obs_hotkey_set_description(_hotkeyID, _description.c_str());
+	_ignoreExistingHotkeys = false;
+	return true;
+}
+
+Hotkey::~Hotkey()
+{
+	obs_hotkey_unregister(_hotkeyID);
+}
+
+bool Hotkey::UpdateDescription(const std::string &descritpion)
+{
+	if (!DescriptionAvailable(descritpion)) {
+		return false;
+	}
+	_description = descritpion;
+	obs_hotkey_set_description(_hotkeyID, descritpion.c_str());
+	return true;
+}
+
+bool Hotkey::DescriptionAvailable(const std::string &descritpion)
+{
+	for (const auto &hotkey : _registeredHotkeys) {
+		auto h = hotkey.lock();
+		if (!h) {
+			continue;
+		}
+		if (!h->_ignoreExistingHotkeys &&
+		    h->_description == descritpion) {
+			return false;
+		}
+	}
+	return true;
+}
+
+void Hotkey::Callback(void *data, obs_hotkey_id, obs_hotkey_t *, bool pressed)
+{
+	auto hotkey = static_cast<Hotkey *>(data);
+	if (pressed) {
+		hotkey->_lastPressed =
+			std::chrono::high_resolution_clock::now();
+	}
+	hotkey->_pressed = pressed;
+}
+
+void Hotkey::ClearAllHotkeys()
+{
+	_registeredHotkeys.clear();
+}
+
 void startHotkeyFunc(void *, obs_hotkey_id, obs_hotkey_t *, bool pressed)
 {
 	if (pressed) {