LookingGlass/client/displayservers/Wayland/wayland.c
Geoffrey McRae d0a12f6097 [client] ds: detect when the cursor exits into an overlapping window
This adds a new method to the display server interface to allow the
application to notify the ds when there is a guest cursor position
update along with the translated local guest cursor position. This makes
it possible for the display server to keep the local cursor position in
sync with the guest cursor so that window leave events can be detected
when the cursor would move into an overlapping window.

Wayland currently just has a stub for this, and the X11 implementation
still needs some minor tweaking.
2021-05-04 06:35:36 +10:00

184 lines
4.7 KiB
C

/*
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
*/
#define _GNU_SOURCE
#include "wayland.h"
#include <signal.h>
#include <string.h>
#include <wayland-client.h>
#include "common/debug.h"
#include "common/option.h"
static struct Option waylandOptions[] =
{
{
.module = "wayland",
.name = "warpSupport",
.description = "Enable cursor warping",
.type = OPTION_TYPE_BOOL,
.value.x_bool = true,
},
{0}
};
static bool waylandEarlyInit(void)
{
// 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 void waylandSetup(void)
{
option_register(waylandOptions);
}
static bool waylandProbe(void)
{
return getenv("WAYLAND_DISPLAY") != NULL;
}
static bool waylandInit(const LG_DSInitParams params)
{
memset(&wlWm, 0, sizeof(wlWm));
wl_list_init(&wlWm.surfaceOutputs);
wlWm.warpSupport = option_get_bool("wayland", "warpSupport");
wlWm.display = wl_display_connect(NULL);
wlWm.width = params.w;
wlWm.height = params.h;
if (!waylandPollInit())
return false;
if (!waylandOutputInit())
return false;
if (!waylandRegistryInit())
return false;
if (!waylandIdleInit())
return false;
if (!waylandInputInit())
return false;
if (!waylandWindowInit(params.title, params.fullscreen, params.maximize, params.borderless))
return false;
if (!waylandEGLInit(params.w, params.h))
return false;
if (!waylandCursorInit())
return false;
#ifdef ENABLE_OPENGL
if (params.opengl && !waylandOpenGLInit())
return false;
#endif
wlWm.width = params.w;
wlWm.height = params.h;
return true;
}
static void waylandStartup(void)
{
}
static void waylandShutdown(void)
{
}
static void waylandFree(void)
{
waylandIdleFree();
waylandWindowFree();
waylandInputFree();
waylandOutputFree();
waylandRegistryFree();
waylandCursorFree();
wl_display_disconnect(wlWm.display);
}
static bool waylandGetProp(LG_DSProperty prop, void * ret)
{
if (prop == LG_DS_WARP_SUPPORT)
{
*(enum LG_DSWarpSupport*)ret = wlWm.warpSupport ? LG_DS_WARP_SURFACE : LG_DS_WARP_NONE;
return true;
}
return false;
}
struct LG_DisplayServerOps LGDS_Wayland =
{
.setup = waylandSetup,
.probe = waylandProbe,
.earlyInit = waylandEarlyInit,
.init = waylandInit,
.startup = waylandStartup,
.shutdown = waylandShutdown,
.free = waylandFree,
.getProp = waylandGetProp,
#ifdef ENABLE_EGL
.getEGLDisplay = waylandGetEGLDisplay,
.getEGLNativeWindow = waylandGetEGLNativeWindow,
.eglSwapBuffers = waylandEGLSwapBuffers,
#endif
#ifdef ENABLE_OPENGL
.glCreateContext = waylandGLCreateContext,
.glDeleteContext = waylandGLDeleteContext,
.glMakeCurrent = waylandGLMakeCurrent,
.glSetSwapInterval = waylandGLSetSwapInterval,
.glSwapBuffers = waylandGLSwapBuffers,
#endif
.guestPointerUpdated = waylandGuestPointerUpdated,
.showPointer = waylandShowPointer,
.grabPointer = waylandGrabPointer,
.ungrabPointer = waylandUngrabPointer,
.grabKeyboard = waylandGrabKeyboard,
.ungrabKeyboard = waylandUngrabKeyboard,
.warpPointer = waylandWarpPointer,
.realignPointer = waylandRealignPointer,
.isValidPointerPos = waylandIsValidPointerPos,
.inhibitIdle = waylandInhibitIdle,
.uninhibitIdle = waylandUninhibitIdle,
.wait = waylandWait,
.setWindowSize = waylandSetWindowSize,
.setFullscreen = waylandSetFullscreen,
.getFullscreen = waylandGetFullscreen,
.cbInit = waylandCBInit,
.cbNotice = waylandCBNotice,
.cbRelease = waylandCBRelease,
.cbRequest = waylandCBRequest
};