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/*
* Copyright © 2013 Ran Benita
*
* 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.
*/
#ifndef _XKBCOMMON_X11_H
#define _XKBCOMMON_X11_H
#include <xcb/xcb.h>
#include <xkbcommon/xkbcommon.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @file
* libxkbcommon-x11 API - Additional X11 support for xkbcommon.
*/
/**
* @defgroup x11 X11 support
* Additional X11 support for xkbcommon.
*
* @{
*/
/**
* The minimal compatible major version of the XKB X11 extension which
* this library can use.
*/
#define XKB_X11_MIN_MAJOR_XKB_VERSION 1
/**
* The minimal compatible minor version of the XKB X11 extension which
* this library can use (for the minimal major version).
*/
#define XKB_X11_MIN_MINOR_XKB_VERSION 0
/** Flags for the xkb_x11_setup_xkb_extension() function. */
enum xkb_x11_setup_xkb_extension_flags {
/** Do not apply any flags. */
XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS = 0
};
/**
* Setup the XKB X11 extension for this X client.
*
* The xkbcommon-x11 library uses various XKB requests. Before doing so,
* an X client must notify the server that it will be using the extension.
* This function (or an XCB equivalent) must be called before any other
* function in this library is used.
*
* Some X servers may not support or disable the XKB extension. If you
* want to support such servers, you need to use a different fallback.
*
* You may call this function several times; it is idempotent.
*
* @param connection
* An XCB connection to the X server.
* @param major_xkb_version, minor_xkb_version
* The XKB extension version to request. To operate correctly, you
* must have (major_xkb_version, minor_xkb_version) >=
* (XKB_X11_MIN_MAJOR_XKB_VERSION, XKB_X11_MIN_MINOR_XKB_VERSION),
* though this is not enforced.
* @param flags
* Optional flags, or 0.
* @param[out] major_xkb_version_out, minor_xkb_version_out
* Backfilled with the compatible XKB extension version numbers picked
* by the server. Can be NULL.
* @param[out] base_event_out
* Backfilled with the XKB base (also known as first) event code, needed
* to distinguish XKB events. Can be NULL.
* @param[out] base_error_out
* Backfilled with the XKB base (also known as first) error code, needed
* to distinguish XKB errors. Can be NULL.
*
* @returns 1 on success, or 0 on failure.
*/
int
xkb_x11_setup_xkb_extension(xcb_connection_t *connection,
uint16_t major_xkb_version,
uint16_t minor_xkb_version,
enum xkb_x11_setup_xkb_extension_flags flags,
uint16_t *major_xkb_version_out,
uint16_t *minor_xkb_version_out,
uint8_t *base_event_out,
uint8_t *base_error_out);
/**
* Get the keyboard device ID of the core X11 keyboard.
*
* @param connection An XCB connection to the X server.
*
* @returns A device ID which may be used with other xkb_x11_* functions,
* or -1 on failure.
*/
int32_t
xkb_x11_get_core_keyboard_device_id(xcb_connection_t *connection);
/**
* Create a keymap from an X11 keyboard device.
*
* This function queries the X server with various requests, fetches the
* details of the active keymap on a keyboard device, and creates an
* xkb_keymap from these details.
*
* @param context
* The context in which to create the keymap.
* @param connection
* An XCB connection to the X server.
* @param device_id
* An XInput 1 device ID (in the range 0-255) with input class KEY.
* Passing values outside of this range is an error.
* @param flags
* Optional flags for the keymap, or 0.
*
* @returns A keymap retrieved from the X server, or NULL on failure.
*
* @memberof xkb_keymap
*/
struct xkb_keymap *
xkb_x11_keymap_new_from_device(struct xkb_context *context,
xcb_connection_t *connection,
int32_t device_id,
enum xkb_keymap_compile_flags flags);
/**
* Create a new keyboard state object from an X11 keyboard device.
*
* This function is the same as xkb_state_new(), only pre-initialized
* with the state of the device at the time this function is called.
*
* @param keymap
* The keymap for which to create the state.
* @param connection
* An XCB connection to the X server.
* @param device_id
* An XInput 1 device ID (in the range 0-255) with input class KEY.
* Passing values outside of this range is an error.
*
* @returns A new keyboard state object, or NULL on failure.
*
* @memberof xkb_state
*/
struct xkb_state *
xkb_x11_state_new_from_device(struct xkb_keymap *keymap,
xcb_connection_t *connection,
int32_t device_id);
/** @} */
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* _XKBCOMMON_X11_H */
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