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esphome/esphome/components/binary_sensor/binary_sensor.h

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C++

#pragma once
#include "esphome/core/entity_base.h"
#include "esphome/core/helpers.h"
#include "esphome/components/binary_sensor/filter.h"
#include <vector>
namespace esphome {
namespace binary_sensor {
class BinarySensor;
void log_binary_sensor(const char *tag, const char *prefix, const char *type, BinarySensor *obj);
#define LOG_BINARY_SENSOR(prefix, type, obj) log_binary_sensor(TAG, prefix, LOG_STR_LITERAL(type), obj)
#define SUB_BINARY_SENSOR(name) \
protected: \
binary_sensor::BinarySensor *name##_binary_sensor_{nullptr}; \
\
public: \
void set_##name##_binary_sensor(binary_sensor::BinarySensor *binary_sensor) { \
this->name##_binary_sensor_ = binary_sensor; \
}
/** Base class for all binary_sensor-type classes.
*
* This class includes a callback that components such as MQTT can subscribe to for state changes.
* The sub classes should notify the front-end of new states via the publish_state() method which
* handles inverted inputs for you.
*/
class BinarySensor : public StatefulEntityBase<bool>, public EntityBase_DeviceClass {
public:
explicit BinarySensor(){};
/** Publish a new state to the front-end.
*
* @param new_state The new state.
*/
void publish_state(bool new_state);
/** Publish the initial state, this will not make the callback manager send callbacks
* and is meant only for the initial state on boot.
*
* @param new_state The new state.
*/
void publish_initial_state(bool new_state);
void add_filter(Filter *filter);
void add_filters(const std::vector<Filter *> &filters);
// ========== INTERNAL METHODS ==========
// (In most use cases you won't need these)
void send_state_internal(bool new_state);
/// Return whether this binary sensor has outputted a state.
virtual bool is_status_binary_sensor() const;
// For backward compatibility, provide an accessible property
bool state{};
protected:
Filter *filter_list_{nullptr};
};
class BinarySensorInitiallyOff : public BinarySensor {
public:
bool has_state() const override { return true; }
};
} // namespace binary_sensor
} // namespace esphome