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105 lines
2.2 KiB
C
105 lines
2.2 KiB
C
/*
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* \brief C interface to Genode's event session
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* \author Norman Feske
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* \author Christian Helmuth
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* \date 2021-09-29
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*/
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/*
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* Copyright (C) 2021 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__GENODE_C_API__EVENT_H_
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#define _INCLUDE__GENODE_C_API__EVENT_H_
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#include <genode_c_api/base.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Initialize event-session handling
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*/
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void genode_event_init(struct genode_env *,
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struct genode_allocator *);
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struct genode_event; /* definition is private to the implementation */
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/****************************
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** Event-session lifetime **
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****************************/
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struct genode_event_args
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{
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char const *label;
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};
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struct genode_event *genode_event_create(struct genode_event_args const *);
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void genode_event_destroy(struct genode_event *);
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/**********************
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** Event submission **
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**********************/
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struct genode_event_touch_args
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{
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unsigned finger;
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unsigned xpos;
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unsigned ypos;
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unsigned width;
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};
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struct genode_event_submit;
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/**
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* Interface called by 'genode_event_generator_t' to submit events
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*
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* Note, keycode values must conform to os/include/input/keycodes.h.
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*/
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struct genode_event_submit
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{
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void (*press) (struct genode_event_submit *, unsigned keycode);
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void (*release) (struct genode_event_submit *, unsigned keycode);
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void (*rel_motion) (struct genode_event_submit *, int x, int y);
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void (*touch) (struct genode_event_submit *,
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struct genode_event_touch_args const *);
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void (*touch_release) (struct genode_event_submit *, unsigned finger);
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};
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/**
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* Context private to 'genode_event_generator_t'
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*/
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struct genode_event_generator_ctx;
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typedef void (*genode_event_generator_t)
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(struct genode_event_generator_ctx *, struct genode_event_submit *);
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/**
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* Generate batch of events
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*/
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void genode_event_generate(struct genode_event *,
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genode_event_generator_t,
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struct genode_event_generator_ctx *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _INCLUDE__GENODE_C_API__EVENT_H_ */
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