b576d52d58
* Used for ZMK Studio event remappers to be sure the one RPC event listener subscribes to their mapped events.
87 lines
No EOL
4.6 KiB
C
87 lines
No EOL
4.6 KiB
C
/*
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* Copyright (c) 2020 The ZMK Contributors
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#include <stddef.h>
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#include <zephyr/kernel.h>
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#include <zephyr/types.h>
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struct zmk_event_type {
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const char *name;
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};
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typedef struct {
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const struct zmk_event_type *event;
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uint8_t last_listener_index;
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} zmk_event_t;
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#define ZMK_EV_EVENT_BUBBLE 0
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#define ZMK_EV_EVENT_HANDLED 1
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#define ZMK_EV_EVENT_CAPTURED 2
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typedef int (*zmk_listener_callback_t)(const zmk_event_t *eh);
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struct zmk_listener {
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zmk_listener_callback_t callback;
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};
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struct zmk_event_subscription {
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const struct zmk_event_type *event_type;
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const struct zmk_listener *listener;
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};
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#define ZMK_EVENT_DECLARE(event_type) \
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struct event_type##_event { \
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zmk_event_t header; \
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struct event_type data; \
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}; \
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struct event_type##_event copy_raised_##event_type(const struct event_type *ev); \
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int raise_##event_type(struct event_type); \
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struct event_type *as_##event_type(const zmk_event_t *eh); \
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extern const struct zmk_event_type zmk_event_##event_type;
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#define ZMK_EVENT_IMPL(event_type) \
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const struct zmk_event_type zmk_event_##event_type = {.name = STRINGIFY(event_type)}; \
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const struct zmk_event_type *zmk_event_ref_##event_type __used \
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__attribute__((__section__(".event_type"))) = &zmk_event_##event_type; \
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struct event_type##_event copy_raised_##event_type(const struct event_type *ev) { \
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struct event_type##_event *outer = CONTAINER_OF(ev, struct event_type##_event, data); \
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return *outer; \
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}; \
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int raise_##event_type(struct event_type data) { \
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struct event_type##_event ev = {.data = data, \
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.header = {.event = &zmk_event_##event_type}}; \
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return ZMK_EVENT_RAISE(ev); \
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}; \
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struct event_type *as_##event_type(const zmk_event_t *eh) { \
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return (eh->event == &zmk_event_##event_type) ? &((struct event_type##_event *)eh)->data \
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: NULL; \
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};
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#define ZMK_LISTENER(mod, cb) const struct zmk_listener zmk_listener_##mod = {.callback = cb};
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#define ZMK_SUBSCRIPTION(mod, ev_type) \
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extern const struct zmk_listener zmk_listener_##mod; \
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const Z_DECL_ALIGN(struct zmk_event_subscription) \
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_CONCAT(_CONCAT(zmk_event_sub_, mod), ev_type) __used \
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__attribute__((__section__(".event_subscription"))) = { \
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.event_type = &zmk_event_##ev_type, \
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.listener = &zmk_listener_##mod, \
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};
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#define ZMK_EVENT_RAISE(ev) zmk_event_manager_raise(&(ev).header)
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#define ZMK_EVENT_RAISE_AFTER(ev, mod) \
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zmk_event_manager_raise_after(&(ev).header, &zmk_listener_##mod)
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#define ZMK_EVENT_RAISE_AT(ev, mod) zmk_event_manager_raise_at(&(ev).header, &zmk_listener_##mod)
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#define ZMK_EVENT_RELEASE(ev) zmk_event_manager_release(&(ev).header)
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int zmk_event_manager_raise(zmk_event_t *event);
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int zmk_event_manager_raise_after(zmk_event_t *event, const struct zmk_listener *listener);
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int zmk_event_manager_raise_at(zmk_event_t *event, const struct zmk_listener *listener);
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int zmk_event_manager_release(zmk_event_t *event); |