Initial fullscreen support

4 files changed, 118 insertions, 7 deletions

diff --git a/rootston/desktop.c b/rootston/desktop.c
index cf5a8cdc..be74b619 100644
--- a/rootston/desktop.c
+++ b/rootston/desktop.c
@@ -89,6 +89,19 @@ void view_move_resize(struct roots_view *view, double x, double y,
 	view_resize(view, width, height);
 }
 
+static struct wlr_output *view_get_output(struct roots_view *view) {
+	struct wlr_box view_box;
+	view_get_box(view, &view_box);
+
+	double output_x, output_y;
+	wlr_output_layout_closest_point(view->desktop->layout, NULL,
+		view->x + (double)view_box.width/2,
+		view->y + (double)view_box.height/2,
+		&output_x, &output_y);
+	return wlr_output_layout_output_at(view->desktop->layout, output_x,
+		output_y);
+}
+
 void view_maximize(struct roots_view *view, bool maximized) {
 	if (view->maximized == maximized) {
 		return;
@@ -109,13 +122,7 @@ void view_maximize(struct roots_view *view, bool maximized) {
 		view->saved.width = view_box.width;
 		view->saved.height = view_box.height;
 
-		double output_x, output_y;
-		wlr_output_layout_closest_point(view->desktop->layout, NULL,
-			view->x + (double)view_box.width/2,
-			view->y + (double)view_box.height/2,
-			&output_x, &output_y);
-		struct wlr_output *output = wlr_output_layout_output_at(
-			view->desktop->layout, output_x, output_y);
+		struct wlr_output *output = view_get_output(view);
 		struct wlr_box *output_box =
 			wlr_output_layout_get_box(view->desktop->layout, output);
 
@@ -133,6 +140,54 @@ void view_maximize(struct roots_view *view, bool maximized) {
 	}
 }
 
+void view_set_fullscreen(struct roots_view *view, bool fullscreen,
+		struct wlr_output *output) {
+	bool was_fullscreen = view->fullscreen_output != NULL;
+	if (was_fullscreen == fullscreen) {
+		// TODO: support changing the output?
+		return;
+	}
+
+	// TODO: check if client is focused?
+
+	if (view->set_fullscreen) {
+		view->set_fullscreen(view, fullscreen);
+	}
+
+	if (!was_fullscreen && fullscreen) {
+		if (output == NULL) {
+			output = view_get_output(view);
+		}
+
+		struct wlr_box view_box;
+		view_get_box(view, &view_box);
+
+		view->saved.x = view->x;
+		view->saved.y = view->y;
+		view->saved.rotation = view->rotation;
+		view->saved.width = view_box.width;
+		view->saved.height = view_box.height;
+
+		struct wlr_box *output_box =
+			wlr_output_layout_get_box(view->desktop->layout, output);
+		view_move_resize(view, output_box->x, output_box->y, output_box->width,
+			output_box->height);
+		view->rotation = 0;
+
+		wlr_output_set_fullscreen_surface(output, view->wlr_surface);
+		view->fullscreen_output = output;
+	}
+
+	if (was_fullscreen && !fullscreen) {
+		view_move_resize(view, view->saved.x, view->saved.y, view->saved.width,
+			view->saved.height);
+		view->rotation = view->saved.rotation;
+
+		wlr_output_set_fullscreen_surface(view->fullscreen_output, NULL);
+		view->fullscreen_output = NULL;
+	}
+}
+
 void view_close(struct roots_view *view) {
 	if (view->close) {
 		view->close(view);
diff --git a/rootston/output.c b/rootston/output.c
index 83ff37fd..35a5dac3 100644
--- a/rootston/output.c
+++ b/rootston/output.c
@@ -186,6 +186,13 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
 	wlr_output_make_current(wlr_output);
 	wlr_renderer_begin(server->renderer, wlr_output);
 
+	if (wlr_output->fullscreen_surface != NULL) {
+		wlr_renderer_end(server->renderer);
+		wlr_output_swap_buffers(wlr_output);
+		output->last_frame = desktop->last_frame = now;
+		return;
+	}
+
 	struct roots_view *view;
 	wl_list_for_each_reverse(view, &desktop->views, link) {
 		render_view(view, desktop, wlr_output, &now);
diff --git a/rootston/wl_shell.c b/rootston/wl_shell.c
index 7359c878..f285d7f6 100644
--- a/rootston/wl_shell.c
+++ b/rootston/wl_shell.c
@@ -59,6 +59,17 @@ static void handle_request_set_maximized(struct wl_listener *listener,
 	view_maximize(view, true);
 }
 
+static void handle_request_set_fullscreen(struct wl_listener *listener,
+		void *data) {
+	struct roots_wl_shell_surface *roots_surface =
+		wl_container_of(listener, roots_surface, request_set_fullscreen);
+	struct roots_view *view = roots_surface->view;
+	struct wlr_wl_shell_surface_set_fullscreen_event *e = data;
+
+	// TODO: support e->method, e->framerate
+	view_set_fullscreen(view, true, e->output);
+}
+
 static void handle_set_state(struct wl_listener *listener, void *data) {
 	struct roots_wl_shell_surface *roots_surface =
 		wl_container_of(listener, roots_surface, set_state);
@@ -68,6 +79,10 @@ static void handle_set_state(struct wl_listener *listener, void *data) {
 			surface->state != WLR_WL_SHELL_SURFACE_STATE_MAXIMIZED) {
 		view_maximize(view, false);
 	}
+	if (view->fullscreen_output != NULL &&
+			surface->state != WLR_WL_SHELL_SURFACE_STATE_FULLSCREEN) {
+		view_set_fullscreen(view, false, NULL);
+	}
 }
 
 static void handle_surface_commit(struct wl_listener *listener, void *data) {
@@ -81,6 +96,7 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
 	wl_list_remove(&roots_surface->request_move.link);
 	wl_list_remove(&roots_surface->request_resize.link);
 	wl_list_remove(&roots_surface->request_set_maximized.link);
+	wl_list_remove(&roots_surface->request_set_fullscreen.link);
 	wl_list_remove(&roots_surface->set_state.link);
 	wl_list_remove(&roots_surface->surface_commit.link);
 	view_destroy(roots_surface->view);
@@ -111,6 +127,10 @@ void handle_wl_shell_surface(struct wl_listener *listener, void *data) {
 	roots_surface->request_set_maximized.notify = handle_request_set_maximized;
 	wl_signal_add(&surface->events.request_set_maximized,
 		&roots_surface->request_set_maximized);
+	roots_surface->request_set_fullscreen.notify =
+		handle_request_set_fullscreen;
+	wl_signal_add(&surface->events.request_set_fullscreen,
+		&roots_surface->request_set_fullscreen);
 	roots_surface->set_state.notify = handle_set_state;
 	wl_signal_add(&surface->events.set_state, &roots_surface->set_state);
 	roots_surface->surface_commit.notify = handle_surface_commit;
diff --git a/rootston/xdg_shell_v6.c b/rootston/xdg_shell_v6.c
index 656231c7..9017f7bd 100644
--- a/rootston/xdg_shell_v6.c
+++ b/rootston/xdg_shell_v6.c
@@ -100,6 +100,16 @@ static void maximize(struct roots_view *view, bool maximized) {
 	wlr_xdg_toplevel_v6_set_maximized(surface, maximized);
 }
 
+static void set_fullscreen(struct roots_view *view, bool fullscreen) {
+	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
+	struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
+	if (surface->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
+		return;
+	}
+
+	wlr_xdg_toplevel_v6_set_fullscreen(surface, fullscreen);
+}
+
 static void close(struct roots_view *view) {
 	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
 	struct wlr_xdg_surface_v6 *surf = view->xdg_surface_v6;
@@ -150,6 +160,21 @@ static void handle_request_maximize(struct wl_listener *listener, void *data) {
 	view_maximize(view, surface->toplevel_state->next.maximized);
 }
 
+static void handle_request_fullscreen(struct wl_listener *listener,
+		void *data) {
+	struct roots_xdg_surface_v6 *roots_xdg_surface =
+		wl_container_of(listener, roots_xdg_surface, request_fullscreen);
+	struct roots_view *view = roots_xdg_surface->view;
+	struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
+	struct wlr_xdg_toplevel_v6_set_fullscreen_event *e = data;
+
+	if (surface->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
+		return;
+	}
+
+	view_set_fullscreen(view, e->fullscreen, e->output);
+}
+
 static void handle_commit(struct wl_listener *listener, void *data) {
 	//struct roots_xdg_surface_v6 *roots_xdg_surface =
 	//	wl_container_of(listener, roots_xdg_surface, commit);
@@ -202,6 +227,9 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 	roots_surface->request_maximize.notify = handle_request_maximize;
 	wl_signal_add(&surface->events.request_maximize,
 		&roots_surface->request_maximize);
+	roots_surface->request_fullscreen.notify = handle_request_fullscreen;
+	wl_signal_add(&surface->events.request_fullscreen,
+		&roots_surface->request_fullscreen);
 
 	struct roots_view *view = calloc(1, sizeof(struct roots_view));
 	if (!view) {
@@ -217,6 +245,7 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 	view->resize = resize;
 	view->move_resize = move_resize;
 	view->maximize = maximize;
+	view->set_fullscreen = set_fullscreen;
 	view->close = close;
 	roots_surface->view = view;
 	view_init(view, desktop);