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weston/clients/screenshot.c

102 lines
3.1 KiB

/*
* Copyright © 2008 Kristian Høgsberg
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <glib.h>
#include "wayland-client.h"
#include "wayland-glib.h"
/* The screenshooter is a good example of a custom object exposed by
* the compositor and serves as a test bed for implementing client
* side marshalling outside libwayland.so */
static const char socket_name[] = "\0wayland";
#define SCREENSHOOTER_SHOOT 0
struct screenshooter;
static const struct wl_message screenshooter_requests[] = {
{ "shoot", "" },
};
static const struct wl_interface screenshooter_interface = {
"screenshooter", 1,
ARRAY_LENGTH(screenshooter_requests), screenshooter_requests,
0, NULL
};
static inline void
screenshooter_shoot(struct screenshooter *shooter)
{
wl_proxy_marshal((struct wl_proxy *) shooter, SCREENSHOOTER_SHOOT);
}
static void
handle_global(struct wl_display *display, uint32_t id,
const char *interface, uint32_t version, void *data)
{
struct screenshooter **screenshooter = data;
if (strcmp(interface, "screenshooter") == 0)
*screenshooter = (struct screenshooter *)
wl_proxy_create_for_id(display,
&screenshooter_interface, id);
}
int main(int argc, char *argv[])
{
struct wl_display *display;
GMainLoop *loop;
GSource *source;
struct screenshooter *screenshooter;
display = wl_display_create(socket_name, sizeof socket_name);
if (display == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return -1;
}
screenshooter = NULL;
wl_display_add_global_listener(display, handle_global, &screenshooter);
wl_display_iterate(display, WL_DISPLAY_READABLE);
if (screenshooter == NULL) {
fprintf(stderr, "display doesn't support screenshooter\n");
return -1;
}
loop = g_main_loop_new(NULL, FALSE);
source = wl_glib_source_new(display);
g_source_attach(source, NULL);
screenshooter_shoot(screenshooter);
g_idle_add((GSourceFunc) g_main_loop_quit, loop);
g_main_loop_run(loop);
return 0;
}