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#include <string.h>
#include <stdio.h>
#include "wayland.h"
#include "drw.h"
#include "xdg-shell-client-protocol.h"
/* macro definitions */
#define match_then_bind(obj, inter, ver) \
if (strcmp(interface, inter.name) == 0) { \
obj = wl_registry_bind(registry, name, &inter, ver);
#define end_match }
#define or_match } else
/* struct definitions */
typedef struct {
unsigned width;
unsigned height;
struct {
struct wl_surface *wl;
struct xdg_surface *xdg;
struct xdg_toplevel *toplevel;
} surface;
Canvas *canvas;
Font *font;
} Window;
static void buffer_release(void *data, struct wl_buffer *buffer);
static void draw_frame();
static void surface_configure(void *data, struct xdg_surface *surface, uint32_t serial);
static void toplevel_configure(void *data, struct xdg_toplevel *toplevel, int32_t width, int32_t height, struct wl_array *states);
static void toplevel_close(void *data, struct xdg_toplevel *toplevel);
static void wm_base_ping(void *data, struct xdg_wm_base *wm_base, uint32_t serial);
static void registry_global(void *data, struct wl_registry *registry, uint32_t name, const char *interface, uint32_t version);
static void registry_global_remove(void *data, struct wl_registry *registry, uint32_t name);
/* global variables */
static const struct wl_registry_listener registry_listener = {
.global = registry_global,
.global_remove = registry_global_remove
};
static const struct wl_buffer_listener buffer_listener = {
.release = buffer_release
};
static const struct xdg_surface_listener surface_listener = {
.configure = surface_configure,
};
static const struct xdg_toplevel_listener toplevel_listener = {
.configure = toplevel_configure,
.close = toplevel_close
};
static const struct xdg_wm_base_listener wm_base_listener = {
.ping = wm_base_ping
};
struct client_state state = { 0 };
Window win = { 0 };
int running = 1;
#include "config.h"
/* function implementation */
void
buffer_release(void *data, struct wl_buffer *buffer)
{
wl_buffer_destroy(buffer);
}
void
draw_frame()
{
draw_rect(win.canvas, 0, 0, win.width, win.height, 0xff00ff00);
}
void
surface_configure(void *data, struct xdg_surface *surface, uint32_t serial)
{
xdg_surface_ack_configure(surface, serial);
fprintf(stderr, "configure\n");
if (win.canvas != 0) {
free_drw(win.canvas);
}
win.canvas = create_drw(state.shm, win.width, win.height);
draw_frame();
wl_surface_attach(win.surface.wl, win.canvas->buffer, 0, 0);
wl_surface_damage_buffer(win.surface.wl, 0, 0, win.width, win.height);
wl_surface_commit(win.surface.wl);
}
void
toplevel_configure(void *data, struct xdg_toplevel *toplevel, int32_t width, int32_t height, struct wl_array *states)
{
if (width == 0 || height == 0) {
win.width = 800;
win.height = 600;
} else {
win.width = width;
win.height = height;
}
}
void
toplevel_close(void *data, struct xdg_toplevel *toplevel)
{
running = 0;
}
void
wm_base_ping(void *data, struct xdg_wm_base *wm_base, uint32_t serial)
{
xdg_wm_base_pong(wm_base, serial);
}
void
registry_global(void *data, struct wl_registry *registry, uint32_t name, const char *interface, uint32_t version)
{
match_then_bind(state.shm, wl_shm_interface, 1)
or_match match_then_bind(state.compositor, wl_compositor_interface, 4)
or_match match_then_bind(state.wm_base, xdg_wm_base_interface, 1)
/* TODO: or_match match_then_bind(state.seat, wl_seat_interface, 7)
wl_seat_add_listener(state.seat, &seat_listener, &state);*/
end_match
}
void
registry_global_remove(void *data, struct wl_registry *registry, uint32_t name)
{
/* TODO */
}
int main()
{
state.display = wl_display_connect(0);
state.registry = wl_display_get_registry(state.display);
wl_registry_add_listener(state.registry, ®istry_listener, &state);
wl_display_roundtrip(state.display);
xdg_wm_base_add_listener(state.wm_base, &wm_base_listener, &state);
wl_display_roundtrip(state.display);
win.surface.wl = wl_compositor_create_surface(state.compositor);
win.surface.xdg = xdg_wm_base_get_xdg_surface(state.wm_base, win.surface.wl);
xdg_surface_add_listener(win.surface.xdg, &surface_listener, &win);
win.surface.toplevel = xdg_surface_get_toplevel(win.surface.xdg);
xdg_toplevel_add_listener(win.surface.toplevel, &toplevel_listener, &win);
xdg_toplevel_set_title(win.surface.toplevel, "swt");
wl_surface_commit(win.surface.wl);
while (wl_display_dispatch(state.display) && running) {
}
wl_display_disconnect(state.display);
return 0;
}
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