looking-glass/client/displayservers/Wayland/shell_libdecor.c
2021-08-01 19:54:28 +10:00

151 lines
4 KiB
C

/**
* Looking Glass
* Copyright (C) 2017-2021 The Looking Glass Authors
* https://looking-glass.io
*
* 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 "wayland.h"
#include <errno.h>
#include <stdbool.h>
#include <string.h>
#include <sys/epoll.h>
#include <libdecor.h>
#include <wayland-client.h>
#include "app.h"
#include "common/debug.h"
struct libdecor_configuration {
uint32_t serial;
bool has_window_state;
enum libdecor_window_state window_state;
bool has_size;
int window_width;
int window_height;
};
static void libdecorHandleError(struct libdecor * context, enum libdecor_error error,
const char *message)
{
DEBUG_ERROR("Got libdecor error (%d): %s", error, message);
}
static void libdecorFrameConfigure(struct libdecor_frame * frame,
struct libdecor_configuration * configuration, void * opaque)
{
int width, height;
if (libdecor_configuration_get_content_size(configuration, frame, &width, &height)) {
wlWm.width = width;
wlWm.height = height;
}
enum libdecor_window_state windowState;
if (libdecor_configuration_get_window_state(configuration, &windowState))
wlWm.fullscreen = windowState & LIBDECOR_WINDOW_STATE_FULLSCREEN;
struct libdecor_state * state = libdecor_state_new(wlWm.width, wlWm.height);
libdecor_frame_commit(frame, state, wlWm.configured ? NULL : configuration);
libdecor_state_free(state);
if (wlWm.configured)
{
wlWm.needsResize = true;
wlWm.resizeSerial = configuration->serial;
app_invalidateWindow();
waylandStopWaitFrame();
}
else
wlWm.configured = true;
}
static void libdecorFrameClose(struct libdecor_frame * frame, void * opaque)
{
app_handleCloseEvent();
}
static void libdecorFrameCommit(struct libdecor_frame * frame, void * opaque)
{
}
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
static struct libdecor_interface libdecorListener = {
libdecorHandleError,
};
static struct libdecor_frame_interface libdecorFrameListener = {
libdecorFrameConfigure,
libdecorFrameClose,
libdecorFrameCommit,
};
#pragma GCC diagnostic pop
static void libdecorCallback(uint32_t events, void * opaque)
{
libdecor_dispatch(wlWm.libdecor, 0);
}
bool waylandShellInit(const char * title, bool fullscreen, bool maximize, bool borderless)
{
wlWm.libdecor = libdecor_new(wlWm.display, &libdecorListener);
wlWm.libdecorFrame = libdecor_decorate(wlWm.libdecor, wlWm.surface, &libdecorFrameListener, NULL);
libdecor_frame_set_app_id(wlWm.libdecorFrame, "looking-glass-client");
libdecor_frame_set_title(wlWm.libdecorFrame, title);
libdecor_frame_map(wlWm.libdecorFrame);
while (!wlWm.configured)
libdecor_dispatch(wlWm.libdecor, 0);
if (!waylandPollRegister(libdecor_get_fd(wlWm.libdecor), libdecorCallback, NULL, EPOLLIN))
{
DEBUG_ERROR("Failed register display to epoll: %s", strerror(errno));
return false;
}
return true;
}
void waylandShellAckConfigureIfNeeded(void)
{
if (wlWm.resizeSerial)
{
xdg_surface_ack_configure(libdecor_frame_get_xdg_surface(wlWm.libdecorFrame), wlWm.resizeSerial);
wlWm.resizeSerial = 0;
}
}
void waylandSetFullscreen(bool fs)
{
if (fs)
libdecor_frame_set_fullscreen(wlWm.libdecorFrame, NULL);
else
libdecor_frame_unset_fullscreen(wlWm.libdecorFrame);
}
bool waylandGetFullscreen(void)
{
return wlWm.fullscreen;
}
void waylandMinimize(void)
{
libdecor_frame_set_minimized(wlWm.libdecorFrame);
}