libeis.h

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/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2020 Red Hat, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
 
 
#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stddef.h>
#include <stdbool.h>
#include <stdint.h>
 
struct eis;
struct eis_client;
struct eis_device;
struct eis_seat;
struct eis_event;
struct eis_keymap;
struct eis_touch;
 
struct eis_region;
 
enum eis_device_type {
        EIS_DEVICE_TYPE_VIRTUAL = 1,
        EIS_DEVICE_TYPE_PHYSICAL
};
 
enum eis_device_capability {
        EIS_DEVICE_CAP_POINTER = 1,
        EIS_DEVICE_CAP_POINTER_ABSOLUTE,
        EIS_DEVICE_CAP_KEYBOARD,
        EIS_DEVICE_CAP_TOUCH,
};
 
enum eis_property_permission {
        EIS_PROPERTY_PERM_NONE = 0,
        EIS_PROPERTY_PERM_READ = (1 << 0),
        EIS_PROPERTY_PERM_WRITE = (1 << 1),
        EIS_PROPERTY_PERM_DELETE = (1 << 2),
 
        EIS_PROPERTY_PERM_ALL = (EIS_PROPERTY_PERM_READ|EIS_PROPERTY_PERM_WRITE|EIS_PROPERTY_PERM_DELETE),
};
 
enum eis_keymap_type {
        EIS_KEYMAP_TYPE_XKB = 1,
};
 
enum eis_event_type {
        EIS_EVENT_CLIENT_CONNECT = 1,
        EIS_EVENT_CLIENT_DISCONNECT,
 
        EIS_EVENT_CLIENT_PROPERTY,
 
        EIS_EVENT_SEAT_BIND,
 
        EIS_EVENT_DEVICE_CLOSED,
 
        EIS_EVENT_FRAME = 100,
 
        EIS_EVENT_DEVICE_START_EMULATING = 200,
        EIS_EVENT_DEVICE_STOP_EMULATING,
 
        /* These events are only generated on a receiving EIS context */
 
        EIS_EVENT_POINTER_MOTION = 300,
        EIS_EVENT_POINTER_MOTION_ABSOLUTE,
        EIS_EVENT_POINTER_BUTTON,
        EIS_EVENT_POINTER_SCROLL,
        EIS_EVENT_POINTER_SCROLL_STOP,
        EIS_EVENT_POINTER_SCROLL_CANCEL,
        EIS_EVENT_POINTER_SCROLL_DISCRETE,
 
        EIS_EVENT_KEYBOARD_KEY = 400,
 
        EIS_EVENT_TOUCH_DOWN = 500,
        EIS_EVENT_TOUCH_UP,
        EIS_EVENT_TOUCH_MOTION,
};
 
struct eis *
eis_new(void *user_data);
 
enum eis_log_priority {
        EIS_LOG_PRIORITY_DEBUG = 10,
        EIS_LOG_PRIORITY_INFO = 20,
        EIS_LOG_PRIORITY_WARNING = 30,
        EIS_LOG_PRIORITY_ERROR = 40,
};
 
typedef void (*eis_log_handler)(struct eis *eis,
                                enum eis_log_priority priority,
                                const char *file, int lineno, const char *func,
                                const char *message,
                                bool is_continuation);
void
eis_log_set_handler(struct eis *eis, eis_log_handler log_handler);
 
void
eis_log_set_priority(struct eis *eis, enum eis_log_priority priority);
 
enum eis_log_priority
eis_log_get_priority(const struct eis *eis);
 
struct eis *
eis_ref(struct eis *eis);
 
struct eis *
eis_unref(struct eis *eis);
 
void *
eis_get_user_data(struct eis *eis);
 
void
eis_set_user_data(struct eis *eis, void *user_data);
 
bool
eis_client_is_sender(struct eis_client *client);
 
void
eis_client_property_set(struct eis_client *client, const char *property, const char *value);
 
void
eis_client_property_set_with_permissions(struct eis_client *client,
                                         const char *property, const char *value,
                                         uint32_t permission);
 
uint32_t
eis_client_property_get_permissions(struct eis_client *client, const char *propert);
 
const char *
eis_client_property_get(struct eis_client *client, const char *property);
 
 
int
eis_setup_backend_socket(struct eis *ctx, const char *path);
 
int
eis_setup_backend_fd(struct eis *ctx);
 
int
eis_backend_fd_add_client(struct eis *ctx);
 
int
eis_get_fd(struct eis *eis);
 
void
eis_dispatch(struct eis *eis);
 
struct eis_event *
eis_get_event(struct eis *eis);
 
struct eis_event *
eis_peek_event(struct eis *eis);
 
struct eis_event *
eis_event_unref(struct eis_event *event);
 
struct eis_client *
eis_client_ref(struct eis_client *client);
 
struct eis_client *
eis_client_unref(struct eis_client *client);
 
void *
eis_client_get_user_data(struct eis_client *eis_client);
 
void
eis_client_set_user_data(struct eis_client *eis_client, void *user_data);
 
const char *
eis_client_get_name(struct eis_client *client);
 
void
eis_client_connect(struct eis_client *client);
 
void
eis_client_disconnect(struct eis_client *client);
 
struct eis_seat *
eis_client_new_seat(struct eis_client *client, const char *name);
 
struct eis_seat *
eis_seat_ref(struct eis_seat *seat);
 
struct eis_seat *
eis_seat_unref(struct eis_seat *seat);
 
struct eis_client *
eis_seat_get_client(struct eis_seat *eis_seat);
 
const char *
eis_seat_get_name(struct eis_seat *eis_seat);
 
void *
eis_seat_get_user_data(struct eis_seat *eis_seat);
 
bool
eis_seat_has_capability(struct eis_seat *seat,
                        enum eis_device_capability cap);
 
void
eis_seat_set_user_data(struct eis_seat *eis_seat, void *user_data);
 
void
eis_seat_configure_capability(struct eis_seat *seat,
                          enum eis_device_capability cap);
 
void
eis_seat_add(struct eis_seat *seat);
 
void
eis_seat_remove(struct eis_seat *seat);
 
enum eis_event_type
eis_event_get_type(struct eis_event *event);
 
struct eis_client *
eis_event_get_client(struct eis_event *event);
 
const char *
eis_event_property_get_name(struct eis_event *event);
 
const char *
eis_event_property_get_value(struct eis_event *event);
 
uint32_t
eis_event_property_get_permissions(struct eis_event *event);
 
struct eis_seat *
eis_event_get_seat(struct eis_event *event);
 
struct eis_client *
eis_device_get_client(struct eis_device *device);
 
struct eis_seat *
eis_device_get_seat(struct eis_device *device);
 
struct eis_device *
eis_device_ref(struct eis_device *device);
 
struct eis_device *
eis_device_unref(struct eis_device *device);
 
void *
eis_device_get_user_data(struct eis_device *eis_device);
 
void
eis_device_set_user_data(struct eis_device *eis_device, void *user_data);
 
const char *
eis_device_get_name(struct eis_device *device);
 
bool
eis_device_has_capability(struct eis_device *device,
                          enum eis_device_capability cap);
 
uint32_t
eis_device_get_width(struct eis_device *device);
 
uint32_t
eis_device_get_height(struct eis_device *device);
 
struct eis_device *
eis_seat_new_device(struct eis_seat *seat);
 
void
eis_device_configure_type(struct eis_device *device, enum eis_device_type type);
 
enum eis_device_type
eis_device_get_type(struct eis_device *device);
 
void
eis_device_configure_name(struct eis_device *device, const char *name);
 
void
eis_device_configure_capability(struct eis_device *device, enum eis_device_capability cap);
 
void
eis_device_configure_size(struct eis_device *device, uint32_t width, uint32_t height);
 
struct eis_region *
eis_device_new_region(struct eis_device *device);
 
void
eis_region_set_size(struct eis_region *region, uint32_t w, uint32_t h);
 
void
eis_region_set_offset(struct eis_region *region, uint32_t x, uint32_t y);
 
void
eis_region_set_physical_scale(struct eis_region *region, double scale);
 
void
eis_region_add(struct eis_region *region);
 
struct eis_region *
eis_device_get_region(struct eis_device *device, size_t index);
 
struct eis_region *
eis_region_ref(struct eis_region *region);
 
struct eis_region *
eis_region_unref(struct eis_region *region);
 
void *
eis_region_get_user_data(struct eis_region *region);
 
void
eis_region_set_user_data(struct eis_region *region, void *user_data);
 
uint32_t
eis_region_get_x(struct eis_region *region);
 
uint32_t
eis_region_get_y(struct eis_region *region);
 
uint32_t
eis_region_get_width(struct eis_region *region);
 
uint32_t
eis_region_get_height(struct eis_region *region);
 
void
eis_device_add(struct eis_device *device);
 
void
eis_device_remove(struct eis_device *device);
 
void
eis_device_pause(struct eis_device *device);
 
void
eis_device_resume(struct eis_device *device);
 
struct eis_keymap *
eis_device_new_keymap(struct eis_device *device,
                      enum eis_keymap_type type, int fd, size_t size);
 
void
eis_keymap_add(struct eis_keymap *keymap);
 
size_t
eis_keymap_get_size(struct eis_keymap *keymap);
 
enum eis_keymap_type
eis_keymap_get_type(struct eis_keymap *keymap);
 
int
eis_keymap_get_fd(struct eis_keymap *keymap);
 
struct eis_keymap *
eis_keymap_ref(struct eis_keymap *keymap);
 
struct eis_keymap *
eis_keymap_unref(struct eis_keymap *keymap);
 
void *
eis_keymap_get_user_data(struct eis_keymap *eis_keymap);
 
void
eis_keymap_set_user_data(struct eis_keymap *eis_keymap, void *user_data);
 
struct eis_device *
eis_keymap_get_device(struct eis_keymap *keymap);
 
struct eis_keymap *
eis_device_keyboard_get_keymap(struct eis_device *device);
 
void
eis_device_keyboard_send_xkb_modifiers(struct eis_device *device,
                                       uint32_t depressed,
                                       uint32_t latched,
                                       uint32_t locked,
                                       uint32_t group);
 
void
eis_device_start_emulating(struct eis_device *device);
 
void
eis_device_stop_emulating(struct eis_device *device);
 
void
eis_device_frame(struct eis_device *device);
 
void
eis_device_pointer_motion(struct eis_device *device, double x, double y);
 
void
eis_device_pointer_motion_absolute(struct eis_device *device,
                                   double x, double y);
 
void
eis_device_pointer_button(struct eis_device *device,
                          uint32_t button, bool is_press);
 
void
eis_device_pointer_scroll(struct eis_device *device, double x, double y);
 
void
eis_device_pointer_scroll_discrete(struct eis_device *device, int32_t x, int32_t y);
 
void
eis_device_pointer_scroll_stop(struct eis_device *device, bool stop_x, bool stop_y);
 
void
eis_device_pointer_scroll_cancel(struct eis_device *device, bool cancel_x, bool cancel_y);
 
void
eis_device_keyboard_key(struct eis_device *device, uint32_t keycode, bool is_press);
 
struct eis_touch *
eis_device_touch_new(struct eis_device *device);
 
void
eis_touch_down(struct eis_touch *touch, double x, double y);
 
void
eis_touch_motion(struct eis_touch *touch, double x, double y);
 
void
eis_touch_up(struct eis_touch *touch);
 
struct eis_touch *
eis_touch_ref(struct eis_touch *touch);
 
struct eis_touch *
eis_touch_unref(struct eis_touch *touch);
 
void
eis_touch_set_user_data(struct eis_touch *touch, void *user_data);
 
void *
eis_touch_get_user_data(struct eis_touch *touch);
 
struct eis_device *
eis_touch_get_device(struct eis_touch *touch);
 
bool
eis_event_seat_has_capability(struct eis_event *event, enum eis_device_capability cap);
 
struct eis_device *
eis_event_get_device(struct eis_event *event);
 
double
eis_event_pointer_get_dx(struct eis_event *event);
 
double
eis_event_pointer_get_dy(struct eis_event *event);
 
double
eis_event_pointer_get_absolute_x(struct eis_event *event);
 
double
eis_event_pointer_get_absolute_y(struct eis_event *event);
 
uint32_t
eis_event_pointer_get_button(struct eis_event *event);
 
bool
eis_event_pointer_get_button_is_press(struct eis_event *event);
 
double
eis_event_pointer_get_scroll_x(struct eis_event *event);
 
double
eis_event_pointer_get_scroll_y(struct eis_event *event);
 
bool
eis_event_pointer_get_scroll_stop_x(struct eis_event *event);
 
bool
eis_event_pointer_get_scroll_stop_y(struct eis_event *event);
 
int32_t
eis_event_pointer_get_scroll_discrete_x(struct eis_event *event);
 
int32_t
eis_event_pointer_get_scroll_discrete_y(struct eis_event *event);
 
uint32_t
eis_event_keyboard_get_key(struct eis_event *event);
 
bool
eis_event_keyboard_get_key_is_press(struct eis_event *event);
 
uint32_t
eis_event_touch_get_id(struct eis_event *event);
 
double
eis_event_touch_get_x(struct eis_event *event);
 
double
eis_event_touch_get_y(struct eis_event *event);
 
#ifdef __cplusplus
}
#endif