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esphome/esphome/components/button/button.h

52 lines
1.3 KiB
C++

#pragma once
#include "esphome/core/component.h"
#include "esphome/core/entity_base.h"
#include "esphome/core/helpers.h"
namespace esphome {
namespace button {
// Forward declaration
class Button;
void log_button(const char *tag, const char *prefix, const char *type, Button *obj);
// Macro that calls the function - kept for backward compatibility
#define LOG_BUTTON(prefix, type, obj) log_button(TAG, prefix, LOG_STR_LITERAL(type), obj)
#define SUB_BUTTON(name) \
protected: \
button::Button *name##_button_{nullptr}; \
\
public: \
void set_##name##_button(button::Button *button) { this->name##_button_ = button; }
/** Base class for all buttons.
*
* A button is just a momentary switch that does not have a state, only a trigger.
*/
class Button : public EntityBase, public EntityBase_DeviceClass {
public:
/** Press this button. This is called by the front-end.
*
* For implementing buttons, please override press_action.
*/
void press();
/** Set callback for state changes.
*
* @param callback The void() callback.
*/
void add_on_press_callback(std::function<void()> &&callback);
protected:
/** You should implement this virtual method if you want to create your own button.
*/
virtual void press_action() = 0;
CallbackManager<void()> press_callback_{};
};
} // namespace button
} // namespace esphome