simple-shm: Add wl_fullscreen_shell support

This makes simple-shm act like a very simple fullscreen shell client.  This
is the kind of interaction one would expect out of a boot splash screen or
similar.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>

Makefile.am

@@ -389,7 +389,9 @@ demo_clients +=					\
 weston_simple_shm_SOURCES = clients/simple-shm.c
 nodist_weston_simple_shm_SOURCES =		\
 	protocol/xdg-shell-protocol.c		\
-	protocol/xdg-shell-client-protocol.h
+	protocol/xdg-shell-client-protocol.h	\
+	protocol/fullscreen-shell-protocol.c	\
+	protocol/fullscreen-shell-client-protocol.h
 weston_simple_shm_CFLAGS = $(AM_CFLAGS) $(SIMPLE_CLIENT_CFLAGS)
 weston_simple_shm_LDADD = $(SIMPLE_CLIENT_LIBS) libshared.la
 
@@ -605,6 +607,8 @@ BUILT_SOURCES +=					\
 	protocol/scaler-protocol.c			\
 	protocol/workspaces-client-protocol.h		\
 	protocol/workspaces-protocol.c			\
+	protocol/fullscreen-shell-protocol.c		\
+	protocol/fullscreen-shell-client-protocol.h	\
 	protocol/xdg-shell-protocol.c			\
 	protocol/xdg-shell-client-protocol.h
 

clients/simple-shm.c

@@ -35,12 +35,14 @@
 #include <wayland-client.h>
 #include "../shared/os-compatibility.h"
 #include "xdg-shell-client-protocol.h"
+#include "fullscreen-shell-client-protocol.h"
 
 struct display {
 	struct wl_display *display;
 	struct wl_registry *registry;
 	struct wl_compositor *compositor;
 	struct xdg_shell *shell;
+	struct _wl_fullscreen_shell *fshell;
 	struct wl_shm *shm;
 	uint32_t formats;
 };
@@ -165,14 +167,26 @@ create_window(struct display *display, int width, int height)
 	window->width = width;
 	window->height = height;
 	window->surface = wl_compositor_create_surface(display->compositor);
-	window->xdg_surface = xdg_shell_get_xdg_surface(display->shell,
-							window->surface);
 
-	if (window->xdg_surface)
+	if (display->shell) {
+		window->xdg_surface =
+			xdg_shell_get_xdg_surface(display->shell,
+						  window->surface);
+
+		assert(window->xdg_surface);
+
 		xdg_surface_add_listener(window->xdg_surface,
 					 &xdg_surface_listener, window);
 
-	xdg_surface_set_title(window->xdg_surface, "simple-shm");
+		xdg_surface_set_title(window->xdg_surface, "simple-shm");
+	} else if (display->fshell) {
+		_wl_fullscreen_shell_present_surface(display->fshell,
+						     window->surface,
+						     _WL_FULLSCREEN_SHELL_PRESENT_METHOD_DEFAULT,
+						     NULL);
+	} else {
+		assert(0);
+	}
 
 	return window;
 }
@@ -188,7 +202,8 @@ destroy_window(struct window *window)
 	if (window->buffers[1].buffer)
 		wl_buffer_destroy(window->buffers[1].buffer);
 
-	xdg_surface_destroy(window->xdg_surface);
+	if (window->xdg_surface)
+		xdg_surface_destroy(window->xdg_surface);
 	wl_surface_destroy(window->surface);
 	free(window);
 }
@@ -346,6 +361,9 @@ registry_handle_global(void *data, struct wl_registry *registry,
 					    id, &xdg_shell_interface, 1);
 		xdg_shell_use_unstable_version(d->shell, XDG_VERSION);
 		xdg_shell_add_listener(d->shell, &xdg_shell_listener, d);
+	} else if (strcmp(interface, "_wl_fullscreen_shell") == 0) {
+		d->fshell = wl_registry_bind(registry,
+					     id, &_wl_fullscreen_shell_interface, 1);
 	} else if (strcmp(interface, "wl_shm") == 0) {
 		d->shm = wl_registry_bind(registry,
 					  id, &wl_shm_interface, 1);
@@ -408,6 +426,9 @@ destroy_display(struct display *display)
 	if (display->shell)
 		xdg_shell_destroy(display->shell);
 
+	if (display->fshell)
+		_wl_fullscreen_shell_release(display->fshell);
+
 	if (display->compositor)
 		wl_compositor_destroy(display->compositor);