LookingGlass/client/displayservers/Wayland/wayland.c

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017-2021 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdbool.h>
#include <sys/mman.h>
#include <unistd.h>
#include <linux/input.h>
#include <SDL2/SDL.h>
#include <wayland-client.h>
#include "app.h"
#include "common/debug.h"
#include "wayland-keyboard-shortcuts-inhibit-unstable-v1-client-protocol.h"
#include "wayland-pointer-constraints-unstable-v1-client-protocol.h"
#include "wayland-relative-pointer-unstable-v1-client-protocol.h"
#include "wayland-idle-inhibit-unstable-v1-client-protocol.h"
struct WaylandDSState
{
bool pointerGrabbed;
bool keyboardGrabbed;
struct wl_display * display;
struct wl_surface * surface;
struct wl_registry * registry;
struct wl_seat * seat;
struct wl_data_device_manager * dataDeviceManager;
struct wl_data_device * dataDevice;
uint32_t capabilities;
struct wl_keyboard * keyboard;
struct zwp_keyboard_shortcuts_inhibit_manager_v1 * keyboardInhibitManager;
struct zwp_keyboard_shortcuts_inhibitor_v1 * keyboardInhibitor;
uint32_t keyboardEnterSerial;
struct wl_pointer * pointer;
struct zwp_relative_pointer_manager_v1 * relativePointerManager;
struct zwp_pointer_constraints_v1 * pointerConstraints;
struct zwp_relative_pointer_v1 * relativePointer;
struct zwp_confined_pointer_v1 * confinedPointer;
struct zwp_idle_inhibit_manager_v1 * idleInhibitManager;
struct zwp_idle_inhibitor_v1 * idleInhibitor;
};
struct WCBTransfer
{
void * data;
size_t size;
const char ** mimetypes;
};
struct WCBState
{
enum LG_ClipboardData stashedType;
char * stashedMimetype;
uint8_t * stashedContents;
ssize_t stashedSize;
bool isReceiving;
bool isSelfCopy;
bool haveRequest;
LG_ClipboardData type;
};
static struct WaylandDSState wm;
static struct WCBState wcb;
// Registry-handling listeners.
static void registryGlobalHandler(void * data, struct wl_registry * registry,
uint32_t name, const char * interface, uint32_t version)
{
if (!strcmp(interface, wl_seat_interface.name) && !wm.seat)
wm.seat = wl_registry_bind(wm.registry, name, &wl_seat_interface, 1);
else if (!strcmp(interface, zwp_relative_pointer_manager_v1_interface.name))
wm.relativePointerManager = wl_registry_bind(wm.registry, name,
&zwp_relative_pointer_manager_v1_interface, 1);
else if (!strcmp(interface, zwp_pointer_constraints_v1_interface.name))
wm.pointerConstraints = wl_registry_bind(wm.registry, name,
&zwp_pointer_constraints_v1_interface, 1);
else if (!strcmp(interface, zwp_keyboard_shortcuts_inhibit_manager_v1_interface.name))
wm.keyboardInhibitManager = wl_registry_bind(wm.registry, name,
&zwp_keyboard_shortcuts_inhibit_manager_v1_interface, 1);
else if (!strcmp(interface, wl_data_device_manager_interface.name))
wm.dataDeviceManager = wl_registry_bind(wm.registry, name,
&wl_data_device_manager_interface, 3);
else if (!strcmp(interface, zwp_idle_inhibit_manager_v1_interface.name))
wm.idleInhibitManager = wl_registry_bind(wm.registry, name,
&zwp_idle_inhibit_manager_v1_interface, 1);
}
static void registryGlobalRemoveHandler(void * data,
struct wl_registry * registry, uint32_t name)
{
// Do nothing.
}
static const struct wl_registry_listener registryListener = {
.global = registryGlobalHandler,
.global_remove = registryGlobalRemoveHandler,
};
// Mouse-handling listeners.
static void pointerMotionHandler(void * data, struct wl_pointer * pointer,
uint32_t serial, wl_fixed_t sxW, wl_fixed_t syW)
{
if (wm.relativePointer)
return;
int sx = wl_fixed_to_int(sxW);
int sy = wl_fixed_to_int(syW);
app_updateCursorPos(sx, sy);
app_handleMouseBasic();
}
static void pointerEnterHandler(void * data, struct wl_pointer * pointer,
uint32_t serial, struct wl_surface * surface, wl_fixed_t sxW,
wl_fixed_t syW)
{
if (wm.relativePointer)
return;
int sx = wl_fixed_to_int(sxW);
int sy = wl_fixed_to_int(syW);
app_updateCursorPos(sx, sy);
app_handleMouseBasic();
}
static void pointerLeaveHandler(void * data, struct wl_pointer * pointer,
uint32_t serial, struct wl_surface * surface)
{
// Do nothing.
}
static void pointerAxisHandler(void * data, struct wl_pointer * pointer,
uint32_t serial, uint32_t axis, wl_fixed_t value)
{
int button = value > 0 ?
5 /* SPICE_MOUSE_BUTTON_DOWN */ :
4 /* SPICE_MOUSE_BUTTON_UP */;
app_handleButtonPress(button);
app_handleButtonRelease(button);
}
static int mapWaylandToSpiceButton(uint32_t button)
{
switch (button)
{
case BTN_LEFT:
return 1; // SPICE_MOUSE_BUTTON_LEFT
case BTN_MIDDLE:
return 2; // SPICE_MOUSE_BUTTON_MIDDLE
case BTN_RIGHT:
return 3; // SPICE_MOUSE_BUTTON_RIGHT
case BTN_SIDE:
return 6; // SPICE_MOUSE_BUTTON_SIDE
case BTN_EXTRA:
return 7; // SPICE_MOUSE_BUTTON_EXTRA
}
return 0; // SPICE_MOUSE_BUTTON_INVALID
}
static void pointerButtonHandler(void *data, struct wl_pointer *pointer,
uint32_t serial, uint32_t time, uint32_t button, uint32_t stateW)
{
button = mapWaylandToSpiceButton(button);
if (stateW == WL_POINTER_BUTTON_STATE_PRESSED)
app_handleButtonPress(button);
else
app_handleButtonRelease(button);
}
static const struct wl_pointer_listener pointerListener = {
.enter = pointerEnterHandler,
.leave = pointerLeaveHandler,
.motion = pointerMotionHandler,
.button = pointerButtonHandler,
.axis = pointerAxisHandler,
};
static void waylandInhibitIdle(void)
{
if (wm.idleInhibitManager && !wm.idleInhibitor)
wm.idleInhibitor = zwp_idle_inhibit_manager_v1_create_inhibitor(
wm.idleInhibitManager, wm.surface);
}
static void waylandUninhibitIdle(void)
{
if (wm.idleInhibitor)
{
zwp_idle_inhibitor_v1_destroy(wm.idleInhibitor);
wm.idleInhibitor = NULL;
}
}
// Keyboard-handling listeners.
static void keyboardKeymapHandler(void * data, struct wl_keyboard * keyboard,
uint32_t format, int fd, uint32_t size)
{
close(fd);
}
static void keyboardEnterHandler(void * data, struct wl_keyboard * keyboard,
uint32_t serial, struct wl_surface * surface, struct wl_array * keys)
{
wm.keyboardEnterSerial = serial;
uint32_t * key;
wl_array_for_each(key, keys)
app_handleKeyPress(*key);
}
static void keyboardLeaveHandler(void * data, struct wl_keyboard * keyboard,
uint32_t serial, struct wl_surface * surface)
{
// Do nothing.
}
static void keyboardKeyHandler(void * data, struct wl_keyboard * keyboard,
uint32_t serial, uint32_t time, uint32_t key, uint32_t state)
{
if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
app_handleKeyPress(key);
else
app_handleKeyRelease(key);
}
static void keyboardModifiersHandler(void * data,
struct wl_keyboard * keyboard, uint32_t serial, uint32_t modsDepressed,
uint32_t modsLatched, uint32_t modsLocked, uint32_t group)
{
// Do nothing.
}
static const struct wl_keyboard_listener keyboardListener = {
.keymap = keyboardKeymapHandler,
.enter = keyboardEnterHandler,
.leave = keyboardLeaveHandler,
.key = keyboardKeyHandler,
.modifiers = keyboardModifiersHandler,
};
// Seat-handling listeners.
static void handlePointerCapability(uint32_t capabilities)
{
bool hasPointer = capabilities & WL_SEAT_CAPABILITY_POINTER;
if (!hasPointer && wm.pointer)
{
wl_pointer_destroy(wm.pointer);
wm.pointer = NULL;
}
else if (hasPointer && !wm.pointer)
{
wm.pointer = wl_seat_get_pointer(wm.seat);
wl_pointer_add_listener(wm.pointer, &pointerListener, NULL);
}
}
static void handleKeyboardCapability(uint32_t capabilities)
{
bool hasKeyboard = capabilities & WL_SEAT_CAPABILITY_KEYBOARD;
if (!hasKeyboard && wm.keyboard)
{
wl_keyboard_destroy(wm.keyboard);
wm.keyboard = NULL;
}
else if (hasKeyboard && !wm.keyboard)
{
wm.keyboard = wl_seat_get_keyboard(wm.seat);
wl_keyboard_add_listener(wm.keyboard, &keyboardListener, NULL);
}
}
static void seatCapabilitiesHandler(void * data, struct wl_seat * seat,
uint32_t capabilities)
{
wm.capabilities = capabilities;
handlePointerCapability(capabilities);
handleKeyboardCapability(capabilities);
}
static void seatNameHandler(void * data, struct wl_seat * seat,
const char * name)
{
// Do nothing.
}
static const struct wl_seat_listener seatListener = {
.capabilities = seatCapabilitiesHandler,
.name = seatNameHandler,
};
static bool waylandEarlyInit(void)
{
if (!getenv("SDL_VIDEODRIVER"))
{
int err = setenv("SDL_VIDEODRIVER", "wayland", 1);
if (err < 0)
{
DEBUG_ERROR("Unable to set the env variable SDL_VIDEODRIVER: %d", err);
return false;
}
DEBUG_INFO("SDL_VIDEODRIVER has been set to wayland");
}
// Request to receive EPIPE instead of SIGPIPE when one end of a pipe
// disconnects while a write is pending. This is useful to the Wayland
// clipboard backend, where an arbitrary application is on the other end of
// that pipe.
signal(SIGPIPE, SIG_IGN);
return true;
}
static bool waylandInit(SDL_SysWMinfo * info)
{
memset(&wm, 0, sizeof(wm));
wm.display = info->info.wl.display;
wm.surface = info->info.wl.surface;
wm.registry = wl_display_get_registry(wm.display);
wl_registry_add_listener(wm.registry, &registryListener, NULL);
wl_display_roundtrip(wm.display);
if (!wm.seat || !wm.dataDeviceManager)
{
DEBUG_ERROR("Compositor missing a required interface, will not proceed");
return false;
}
if (!wm.relativePointerManager)
DEBUG_WARN("zwp_relative_pointer_manager_v1 not exported by compositor, "
"mouse will not be captured");
if (!wm.pointerConstraints)
DEBUG_WARN("zwp_pointer_constraints_v1 not exported by compositor, mouse "
"will not be captured");
if (!wm.keyboardInhibitManager)
DEBUG_WARN("zwp_keyboard_shortcuts_inhibit_manager_v1 not exported by "
"compositor, keyboard will not be grabbed");
if (!wm.idleInhibitManager)
DEBUG_WARN("zwp_idle_inhibit_manager_v1 not exported by compositor, will "
"not be able to suppress idle states");
wl_seat_add_listener(wm.seat, &seatListener, NULL);
wl_display_roundtrip(wm.display);
wm.dataDevice = wl_data_device_manager_get_data_device(
wm.dataDeviceManager, wm.seat);
return true;
}
static void waylandStartup(void)
{
}
static void relativePointerMotionHandler(void * data,
struct zwp_relative_pointer_v1 *pointer, uint32_t timeHi, uint32_t timeLo,
wl_fixed_t dxW, wl_fixed_t dyW, wl_fixed_t dxUnaccelW,
wl_fixed_t dyUnaccelW)
{
double dx, dy;
if (app_cursorWantsRaw())
{
dx = wl_fixed_to_double(dxUnaccelW);
dy = wl_fixed_to_double(dyUnaccelW);
}
else
{
dx = wl_fixed_to_double(dxW);
dy = wl_fixed_to_double(dyW);
}
app_handleMouseGrabbed(dx, dy);
}
static const struct zwp_relative_pointer_v1_listener relativePointerListener = {
.relative_motion = relativePointerMotionHandler,
};
static void waylandGrabPointer(void)
{
if (!wm.relativePointerManager || !wm.pointerConstraints)
return;
if (!wm.relativePointer)
{
wm.relativePointer =
zwp_relative_pointer_manager_v1_get_relative_pointer(
wm.relativePointerManager, wm.pointer);
zwp_relative_pointer_v1_add_listener(wm.relativePointer,
&relativePointerListener, NULL);
}
if (!wm.confinedPointer)
{
wm.confinedPointer = zwp_pointer_constraints_v1_confine_pointer(
wm.pointerConstraints, wm.surface, wm.pointer, NULL,
ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
}
}
static void waylandUngrabPointer(void)
{
if (wm.relativePointer)
{
zwp_relative_pointer_v1_destroy(wm.relativePointer);
wm.relativePointer = NULL;
}
if (wm.confinedPointer)
{
zwp_confined_pointer_v1_destroy(wm.confinedPointer);
wm.confinedPointer = NULL;
}
}
static void waylandGrabKeyboard(void)
{
if (wm.keyboardInhibitManager && !wm.keyboardInhibitor)
{
wm.keyboardInhibitor = zwp_keyboard_shortcuts_inhibit_manager_v1_inhibit_shortcuts(
wm.keyboardInhibitManager, wm.surface, wm.seat);
}
}
static void waylandUngrabKeyboard(void)
{
if (wm.keyboardInhibitor)
{
zwp_keyboard_shortcuts_inhibitor_v1_destroy(wm.keyboardInhibitor);
wm.keyboardInhibitor = NULL;
}
}
static void waylandWarpPointer(int x, int y, bool exiting)
{
// This is an unsupported operation on Wayland.
}
static void waylandRealignPointer(void)
{
app_handleMouseBasic();
}
static void waylandFree(void)
{
waylandUngrabPointer();
if (wm.idleInhibitManager)
{
waylandUninhibitIdle();
zwp_idle_inhibit_manager_v1_destroy(wm.idleInhibitManager);
}
// TODO: these also need to be freed, but are currently owned by SDL.
// wl_display_destroy(wm.display);
// wl_surface_destroy(wm.surface);
wl_pointer_destroy(wm.pointer);
wl_seat_destroy(wm.seat);
wl_registry_destroy(wm.registry);
}
static bool waylandGetProp(LG_DSProperty prop, void * ret)
{
if (prop == LG_DS_WARP_SUPPORT)
{
*(bool*)ret = false;
return true;
}
return false;
}
static bool waylandEventFilter(SDL_Event * event)
{
/* prevent the default processing for the following events */
switch(event->type)
{
case SDL_MOUSEMOTION:
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
case SDL_MOUSEWHEEL:
case SDL_KEYDOWN:
case SDL_KEYUP:
return true;
}
return false;
}
static const char * textMimetypes[] =
{
"text/plain",
"text/plain;charset=utf-8",
"TEXT",
"STRING",
"UTF8_STRING",
NULL,
};
static const char * pngMimetypes[] =
{
"image/png",
NULL,
};
static const char * bmpMimetypes[] =
{
"image/bmp",
"image/x-bmp",
"image/x-MS-bmp",
"image/x-win-bitmap",
NULL,
};
static const char * tiffMimetypes[] =
{
"image/tiff",
NULL,
};
static const char * jpegMimetypes[] =
{
"image/jpeg",
NULL,
};
static const char ** cbTypeToMimetypes(enum LG_ClipboardData type)
{
switch (type)
{
case LG_CLIPBOARD_DATA_TEXT:
return textMimetypes;
case LG_CLIPBOARD_DATA_PNG:
return pngMimetypes;
case LG_CLIPBOARD_DATA_BMP:
return bmpMimetypes;
case LG_CLIPBOARD_DATA_TIFF:
return tiffMimetypes;
case LG_CLIPBOARD_DATA_JPEG:
return jpegMimetypes;
default:
DEBUG_ERROR("invalid clipboard type");
abort();
}
}
static bool containsMimetype(const char ** mimetypes,
const char * needle)
{
for (const char ** mimetype = mimetypes; *mimetype; mimetype++)
if (!strcmp(needle, *mimetype))
return true;
return false;
}
static bool mimetypeEndswith(const char * mimetype, const char * what)
{
size_t mimetypeLen = strlen(mimetype);
size_t whatLen = strlen(what);
if (mimetypeLen < whatLen)
return false;
return !strcmp(mimetype + mimetypeLen - whatLen, what);
}
static bool isTextMimetype(const char * mimetype)
{
if (containsMimetype(textMimetypes, mimetype))
return true;
char * text = "text/";
if (!strncmp(mimetype, text, strlen(text)))
return true;
if (mimetypeEndswith(mimetype, "script") ||
mimetypeEndswith(mimetype, "xml") ||
mimetypeEndswith(mimetype, "yaml"))
return true;
if (strstr(mimetype, "json"))
return true;
return false;
}
static enum LG_ClipboardData mimetypeToCbType(const char * mimetype)
{
if (isTextMimetype(mimetype))
return LG_CLIPBOARD_DATA_TEXT;
if (containsMimetype(pngMimetypes, mimetype))
return LG_CLIPBOARD_DATA_PNG;
if (containsMimetype(bmpMimetypes, mimetype))
return LG_CLIPBOARD_DATA_BMP;
if (containsMimetype(tiffMimetypes, mimetype))
return LG_CLIPBOARD_DATA_TIFF;
if (containsMimetype(jpegMimetypes, mimetype))
return LG_CLIPBOARD_DATA_JPEG;
return LG_CLIPBOARD_DATA_NONE;
}
// Destination client handlers.
static void dataOfferHandleOffer(void * data, struct wl_data_offer * offer,
const char * mimetype)
{
enum LG_ClipboardData type = mimetypeToCbType(mimetype);
// Oftentimes we'll get text/html alongside text/png, but would prefer to send
// image/png. In general, prefer images over text content.
if (type != LG_CLIPBOARD_DATA_NONE &&
(wcb.stashedType == LG_CLIPBOARD_DATA_NONE ||
wcb.stashedType == LG_CLIPBOARD_DATA_TEXT))
{
wcb.stashedType = type;
if (wcb.stashedMimetype)
free(wcb.stashedMimetype);
wcb.stashedMimetype = strdup(mimetype);
}
}
static void dataOfferHandleSourceActions(void * data,
struct wl_data_offer * offer, uint32_t sourceActions)
{
// Do nothing.
}
static void dataOfferHandleAction(void * data, struct wl_data_offer * offer,
uint32_t dndAction)
{
// Do nothing.
}
static const struct wl_data_offer_listener dataOfferListener = {
.offer = dataOfferHandleOffer,
.source_actions = dataOfferHandleSourceActions,
.action = dataOfferHandleAction,
};
static void dataDeviceHandleDataOffer(void * data,
struct wl_data_device * dataDevice, struct wl_data_offer * offer)
{
wcb.stashedType = LG_CLIPBOARD_DATA_NONE;
wl_data_offer_add_listener(offer, &dataOfferListener, NULL);
}
static void dataDeviceHandleSelection(void * data,
struct wl_data_device * dataDevice, struct wl_data_offer * offer)
{
if (wcb.stashedType == LG_CLIPBOARD_DATA_NONE || !offer)
return;
int fds[2];
if (pipe(fds) < 0)
{
DEBUG_ERROR("Failed to get a clipboard pipe: %s", strerror(errno));
abort();
}
wcb.isReceiving = true;
wcb.isSelfCopy = false;
wl_data_offer_receive(offer, wcb.stashedMimetype, fds[1]);
close(fds[1]);
free(wcb.stashedMimetype);
wcb.stashedMimetype = NULL;
wl_display_roundtrip(wm.display);
if (wcb.stashedContents)
{
free(wcb.stashedContents);
wcb.stashedContents = NULL;
}
size_t size = 4096, numRead = 0;
uint8_t * buf = (uint8_t *) malloc(size);
while (true)
{
ssize_t result = read(fds[0], buf + numRead, size - numRead);
if (result < 0)
{
DEBUG_ERROR("Failed to read from clipboard: %s", strerror(errno));
abort();
}
if (result == 0)
{
buf[numRead] = 0;
break;
}
numRead += result;
if (numRead >= size)
{
size *= 2;
void * nbuf = realloc(buf, size);
if (!nbuf) {
DEBUG_ERROR("Failed to realloc clipboard buffer: %s", strerror(errno));
abort();
}
buf = nbuf;
}
}
wcb.stashedSize = numRead;
wcb.stashedContents = buf;
wcb.isReceiving = false;
close(fds[0]);
wl_data_offer_destroy(offer);
if (!wcb.isSelfCopy)
app_clipboardNotify(wcb.stashedType, 0);
}
static const struct wl_data_device_listener dataDeviceListener = {
.data_offer = dataDeviceHandleDataOffer,
.selection = dataDeviceHandleSelection,
};
static void waylandCBRequest(LG_ClipboardData type)
{
// We only notified once, so it must be this.
assert(type == wcb.stashedType);
app_clipboardData(wcb.stashedType, wcb.stashedContents, wcb.stashedSize);
}
static bool waylandCBInit(void)
{
memset(&wcb, 0, sizeof(wcb));
wcb.stashedType = LG_CLIPBOARD_DATA_NONE;
wl_data_device_add_listener(wm.dataDevice, &dataDeviceListener, NULL);
return true;
}
static void dataSourceHandleSend(void * data, struct wl_data_source * source,
const char * mimetype, int fd)
{
struct WCBTransfer * transfer = (struct WCBTransfer *) data;
if (wcb.isReceiving)
wcb.isSelfCopy = true;
else if (containsMimetype(transfer->mimetypes, mimetype))
{
// Consider making this do non-blocking sends to not stall the Wayland
// event loop if it becomes a problem. This is "fine" in the sense that
// wl-copy also stalls like this, but it's not necessary.
fcntl(fd, F_SETFL, 0);
size_t pos = 0;
while (pos < transfer->size)
{
ssize_t written = write(fd, transfer->data + pos, transfer->size - pos);
if (written < 0)
{
if (errno != EPIPE)
DEBUG_ERROR("Failed to write clipboard data: %s", strerror(errno));
goto error;
}
pos += written;
}
}
error:
close(fd);
}
static void dataSourceHandleCancelled(void * data,
struct wl_data_source * source)
{
struct WCBTransfer * transfer = (struct WCBTransfer *) data;
free(transfer->data);
free(transfer);
wl_data_source_destroy(source);
}
static const struct wl_data_source_listener dataSourceListener = {
.send = dataSourceHandleSend,
.cancelled = dataSourceHandleCancelled,
};
static void waylandCBReplyFn(void * opaque, LG_ClipboardData type,
uint8_t * data, uint32_t size)
{
struct WCBTransfer * transfer = malloc(sizeof(struct WCBTransfer));
void * dataCopy = malloc(size);
memcpy(dataCopy, data, size);
*transfer = (struct WCBTransfer) {
.data = dataCopy,
.size = size,
.mimetypes = cbTypeToMimetypes(type),
};
struct wl_data_source * source =
wl_data_device_manager_create_data_source(wm.dataDeviceManager);
wl_data_source_add_listener(source, &dataSourceListener, transfer);
for (const char ** mimetype = transfer->mimetypes; *mimetype; mimetype++)
wl_data_source_offer(source, *mimetype);
wl_data_device_set_selection(wm.dataDevice, source,
wm.keyboardEnterSerial);
}
static void waylandCBNotice(LG_ClipboardData type)
{
wcb.haveRequest = true;
wcb.type = type;
app_clipboardRequest(waylandCBReplyFn, NULL);
}
static void waylandCBRelease(void)
{
wcb.haveRequest = false;
}
struct LG_DisplayServerOps LGDS_Wayland =
{
.subsystem = SDL_SYSWM_WAYLAND,
.earlyInit = waylandEarlyInit,
.init = waylandInit,
.startup = waylandStartup,
.free = waylandFree,
.getProp = waylandGetProp,
.eventFilter = waylandEventFilter,
.grabPointer = waylandGrabPointer,
.ungrabPointer = waylandUngrabPointer,
.grabKeyboard = waylandGrabKeyboard,
.ungrabKeyboard = waylandUngrabKeyboard,
.warpPointer = waylandWarpPointer,
.realignPointer = waylandRealignPointer,
.inhibitIdle = waylandInhibitIdle,
.uninhibitIdle = waylandUninhibitIdle,
.cbInit = waylandCBInit,
.cbNotice = waylandCBNotice,
.cbRelease = waylandCBRelease,
.cbRequest = waylandCBRequest
};