Files
esphome/esphome/components/event/event.h
2025-12-19 19:04:21 -10:00

64 lines
2.4 KiB
C++

#pragma once
#include <cstring>
#include <string>
#include <vector>
#include "esphome/core/component.h"
#include "esphome/core/entity_base.h"
#include "esphome/core/helpers.h"
namespace esphome {
namespace event {
#define LOG_EVENT(prefix, type, obj) \
if ((obj) != nullptr) { \
ESP_LOGCONFIG(TAG, "%s%s '%s'", prefix, LOG_STR_LITERAL(type), (obj)->get_name().c_str()); \
if (!(obj)->get_icon_ref().empty()) { \
ESP_LOGCONFIG(TAG, "%s Icon: '%s'", prefix, (obj)->get_icon_ref().c_str()); \
} \
if (!(obj)->get_device_class_ref().empty()) { \
ESP_LOGCONFIG(TAG, "%s Device Class: '%s'", prefix, (obj)->get_device_class_ref().c_str()); \
} \
}
class Event : public EntityBase, public EntityBase_DeviceClass {
public:
void trigger(const std::string &event_type);
/// Set the event types supported by this event (from initializer list).
void set_event_types(std::initializer_list<const char *> event_types) {
this->types_ = event_types;
this->last_event_type_ = nullptr; // Reset when types change
}
/// Set the event types supported by this event (from FixedVector).
void set_event_types(const FixedVector<const char *> &event_types);
/// Set the event types supported by this event (from vector).
void set_event_types(const std::vector<const char *> &event_types);
// Deleted overloads to catch incorrect std::string usage at compile time with clear error messages
void set_event_types(std::initializer_list<std::string> event_types) = delete;
void set_event_types(const FixedVector<std::string> &event_types) = delete;
void set_event_types(const std::vector<std::string> &event_types) = delete;
/// Return the event types supported by this event.
const FixedVector<const char *> &get_event_types() const { return this->types_; }
/// Return the last triggered event type (pointer to string in types_), or nullptr if no event triggered yet.
const char *get_last_event_type() const { return this->last_event_type_; }
void add_on_event_callback(std::function<void(const std::string &event_type)> &&callback);
protected:
LazyCallbackManager<void(const std::string &event_type)> event_callback_;
FixedVector<const char *> types_;
private:
/// Last triggered event type - must point to entry in types_ to ensure valid lifetime.
/// Set by trigger() after validation, reset to nullptr when types_ changes.
const char *last_event_type_{nullptr};
};
} // namespace event
} // namespace esphome