React to xdg shell resize requests

include/rootston/input.h

@@ -110,5 +110,7 @@ const struct roots_input_event *get_input_event(struct roots_input *input,
 		uint32_t serial);
 void view_begin_move(struct roots_input *input, struct wlr_cursor *cursor,
 		struct roots_view *view);
+void view_begin_resize(struct roots_input *input, struct wlr_cursor *cursor,
+		struct roots_view *view);
 
 #endif

rootston/cursor.c

@@ -29,6 +29,14 @@ void view_begin_move(struct roots_input *input, struct wlr_cursor *cursor,
 	wlr_seat_pointer_clear_focus(input->wl_seat);
 }
 
+void view_begin_resize(struct roots_input *input, struct wlr_cursor *cursor,
+		struct roots_view *view) {
+	input->mode = ROOTS_CURSOR_RESIZE;
+	input->offs_x = cursor->x - view->x;
+	input->offs_y = cursor->y - view->y;
+	wlr_seat_pointer_clear_focus(input->wl_seat);
+}
+
 void cursor_update_position(struct roots_input *input, uint32_t time) {
 	struct roots_desktop *desktop = input->server->desktop;
 	struct roots_view *view;
@@ -53,6 +61,10 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
 		}
 		break;
 	case ROOTS_CURSOR_RESIZE:
+		// TODO: this is just for testing
+		if (input->active_view && input->active_view->type == ROOTS_XDG_SHELL_V6_VIEW) {
+			wlr_xdg_toplevel_v6_set_size(input->active_view->xdg_surface_v6, input->cursor->x - input->offs_x, input->cursor->y - input->offs_y);
+		}
 		break;
 	case ROOTS_CURSOR_ROTATE:
 		break;

rootston/wl_shell.c

@@ -10,7 +10,7 @@
 #include "rootston/server.h"
 #include "rootston/input.h"
 
-static void handle_move(struct wl_listener *listener, void *data) {
+static void handle_request_move(struct wl_listener *listener, void *data) {
 	struct roots_wl_shell_surface *roots_surface =
 		wl_container_of(listener, roots_surface, request_move);
 	struct roots_view *view = roots_surface->view;
@@ -53,7 +53,7 @@ void handle_wl_shell_surface(struct wl_listener *listener, void *data) {
 	wl_signal_add(&surface->events.destroy, &roots_surface->destroy);
 	wl_list_init(&roots_surface->ping_timeout.link);
 	wl_list_init(&roots_surface->request_move.link);
-	roots_surface->request_move.notify = handle_move;
+	roots_surface->request_move.notify = handle_request_move;
 	wl_signal_add(&surface->events.request_move, &roots_surface->request_move);
 	wl_list_init(&roots_surface->request_resize.link);
 	wl_list_init(&roots_surface->request_set_fullscreen.link);

rootston/xdg_shell_v6.c

@@ -14,6 +14,11 @@ static void get_input_bounds(struct roots_view *view, struct wlr_box *box) {
 	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
 	struct wlr_xdg_surface_v6 *surf = view->xdg_surface_v6;
 	memcpy(box, surf->geometry, sizeof(struct wlr_box));
+	// TODO: real input bounds
+	box->x -= 10;
+	box->y -= 10;
+	box->width += 20;
+	box->height += 20;
 }
 
 static void activate(struct roots_view *view, bool active) {
@@ -37,6 +42,19 @@ static void handle_request_move(struct wl_listener *listener, void *data) {
 	view_begin_move(input, event->cursor, view);
 }
 
+static void handle_request_resize(struct wl_listener *listener, void *data) {
+	struct roots_xdg_surface_v6 *roots_xdg_surface =
+		wl_container_of(listener, roots_xdg_surface, request_resize);
+	struct roots_view *view = roots_xdg_surface->view;
+	struct roots_input *input = view->desktop->server->input;
+	struct wlr_xdg_toplevel_v6_resize_event *e = data;
+	const struct roots_input_event *event = get_input_event(input, e->serial);
+	if (!event || input->mode != ROOTS_CURSOR_PASSTHROUGH) {
+		return;
+	}
+	view_begin_resize(input, event->cursor, view);
+}
+
 static void handle_destroy(struct wl_listener *listener, void *data) {
 	struct roots_xdg_surface_v6 *roots_xdg_surface =
 		wl_container_of(listener, roots_xdg_surface, destroy);
@@ -71,6 +89,9 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 	roots_surface->request_move.notify = handle_request_move;
 	wl_signal_add(&surface->events.request_move, &roots_surface->request_move);
 	wl_list_init(&roots_surface->request_resize.link);
+	roots_surface->request_resize.notify = handle_request_resize;
+	wl_signal_add(&surface->events.request_resize,
+		&roots_surface->request_resize);
 	wl_list_init(&roots_surface->request_show_window_menu.link);
 
 	struct roots_view *view = calloc(1, sizeof(struct roots_view));

rootston/xwayland.c

@@ -17,7 +17,7 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
 	free(roots_surface);
 }
 
-static void handle_configure(struct wl_listener *listener, void *data) {
+static void handle_request_configure(struct wl_listener *listener, void *data) {
 	struct roots_xwayland_surface *roots_surface =
 		wl_container_of(listener, roots_surface, request_configure);
 	struct wlr_xwayland_surface *xwayland_surface =
@@ -58,7 +58,7 @@ void handle_xwayland_surface(struct wl_listener *listener, void *data) {
 	roots_surface->destroy.notify = handle_destroy;
 	wl_signal_add(&surface->events.destroy, &roots_surface->destroy);
 	wl_list_init(&roots_surface->request_configure.link);
-	roots_surface->request_configure.notify = handle_configure;
+	roots_surface->request_configure.notify = handle_request_configure;
 	wl_signal_add(&surface->events.request_configure,
 		&roots_surface->request_configure);