Wayland开发入门教程12：shell unstable协议

上一篇介绍的是stable版的协议，本文介绍unstable版的协议。

窗口部分是一样的。

我们使用新协议的对象

1
2
3

struct zxdg_shell_v6 *xdg_shell;
struct zxdg_surface_v6 *shell_surface;
struct zxdg_toplevel_v6 *toplevel;

创建新对象

shell_surface = zxdg_shell_v6_get_xdg_surface(xdg_shell, surface);
if (shell_surface == NULL)
{
	fprintf(stderr, "Can't create shell surface\n");
	exit(1);
}
else
{
	fprintf(stderr, "Created shell surface\n");
}
toplevel = zxdg_surface_v6_get_toplevel(shell_surface);
zxdg_surface_v6_add_listener(shell_surface,&surface_listener,NULL);

需要监听新的注册事件

static void
global_registry_handler(void *data, struct wl_registry *registry,
						uint32_t id, const char *interface, uint32_t version)
{
	if (strcmp(interface, "wl_compositor") == 0){
		BIND_WL_REG(registry, compositor, id, &wl_compositor_interface, 1);
	}else if (strcmp(interface, zxdg_shell_v6_interface.name) == 0){
		BIND_WL_REG(registry, xdg_shell, id, &zxdg_shell_v6_interface, 1);
	}else if (strcmp(interface, "wl_shm") == 0){
		BIND_WL_REG(registry, shm, id, &wl_shm_interface, 1);
		wl_shm_add_listener(shm, &shm_listener, NULL);
	}
}

窗口监听和处理

static void handle_configure(void *data, struct zxdg_surface_v6 *surface, uint32_t serial) {
    zxdg_surface_v6_ack_configure(surface, serial);
}

static const struct zxdg_surface_v6_listener surface_listener = {
    .configure = handle_configure
};

编译

协议以xml格式提供，我们在使用时要把它生成为代码。

WAYLAND_FLAGS = $(shell pkg-config wayland-client --cflags --libs)
WAYLAND_PROTOCOLS_DIR = $(shell pkg-config wayland-protocols --variable=pkgdatadir)
WAYLAND_SCANNER = $(shell pkg-config --variable=wayland_scanner wayland-scanner)

XDG_SHELL_PROTOCOL = $(WAYLAND_PROTOCOLS_DIR)/unstable/xdg-shell/xdg-shell-unstable-v6.xml

HEADERS=xdg-shell-unstable-v6-protocol.h
SOURCES=xdg-shell-unstable-v6-protocol.c

all: $(HEADERS) $(SOURCES)
	gcc -o shell_unstable shell_unstable.c $(SOURCES) -I. -lwayland-client -lwayland-egl -lEGL -lGL

xdg-shell-unstable-v6-protocol.h:
	$(WAYLAND_SCANNER) client-header $(XDG_SHELL_PROTOCOL) xdg-shell-unstable-v6-protocol.h

xdg-shell-unstable-v6-protocol.c:
	$(WAYLAND_SCANNER) private-code $(XDG_SHELL_PROTOCOL) xdg-shell-unstable-v6-protocol.c

clean:
	rm -rf shell_stable $(HEADERS) $(SOURCES)