hikari/src/xwayland_unmanaged_view.c

#ifdef HAVE_XWAYLAND
#include <hikari/xwayland_unmanaged_view.h>

#include <wlr/xwayland.h>

#include <hikari/memory.h>
#include <hikari/output.h>
#include <hikari/server.h>
#include <hikari/workspace.h>

static bool
was_updated(struct wlr_xwayland_surface *surface,
		struct wlr_box *geometry,
		struct hikari_output *output)
{
	return !((surface->x - output->geometry.x == geometry->x) &&
					 (surface->y - output->geometry.y == geometry->y) &&
					 (surface->width == geometry->width) &&
					 (surface->height == geometry->height));
}

static void
recalculate_geometry(struct wlr_box *geometry,
		struct wlr_xwayland_surface *surface,
		struct hikari_output *output)
{
	geometry->x = surface->x - output->geometry.x;
	geometry->y = surface->y - output->geometry.y;
	geometry->width = surface->width;
	geometry->height = surface->height;
}

static void
commit_handler(struct wl_listener *listener, void *data)
{
	struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view =
			wl_container_of(listener, xwayland_unmanaged_view, commit);

	struct hikari_output *output = xwayland_unmanaged_view->workspace->output;
	struct wlr_xwayland_surface *surface = xwayland_unmanaged_view->surface;
	struct wlr_box *geometry = &xwayland_unmanaged_view->geometry;

	if (was_updated(surface, geometry, output)) {
		hikari_output_add_damage(output, &xwayland_unmanaged_view->geometry);

		recalculate_geometry(geometry, surface, output);

		hikari_output_add_damage(output, geometry);
	} else if (output->enabled) {
		hikari_output_add_effective_surface_damage(
				output, surface->surface, geometry->x, geometry->y);
	}
}

static void
map_handler(struct wl_listener *listener, void *data)
{
	struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view =
			wl_container_of(listener, xwayland_unmanaged_view, map);

#if !defined(NDEBUG)
	printf("UNMANAGED XWAYLAND MAP %p %d %d\n",
			xwayland_unmanaged_view,
			xwayland_unmanaged_view->surface->x,
			xwayland_unmanaged_view->surface->y);
#endif

	struct wlr_box *geometry = &xwayland_unmanaged_view->geometry;
	struct wlr_xwayland_surface *xwayland_surface =
			xwayland_unmanaged_view->surface;
	struct hikari_output *output = xwayland_unmanaged_view->workspace->output;

	xwayland_unmanaged_view->hidden = false;

	recalculate_geometry(geometry, xwayland_surface, output);

	xwayland_unmanaged_view->commit.notify = commit_handler;
	wl_signal_add(&xwayland_surface->surface->events.commit,
			&xwayland_unmanaged_view->commit);

	wl_list_insert(&output->unmanaged_xwayland_views,
			&xwayland_unmanaged_view->unmanaged_output_views);

	hikari_output_add_damage(output, geometry);
}

static void
unmap(struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view)
{
	wl_list_remove(&xwayland_unmanaged_view->commit.link);
	wl_list_remove(&xwayland_unmanaged_view->unmanaged_output_views);

	xwayland_unmanaged_view->hidden = true;

	hikari_output_add_damage(xwayland_unmanaged_view->workspace->output,
			&xwayland_unmanaged_view->geometry);
}

static void
unmap_handler(struct wl_listener *listener, void *data)
{
	struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view =
			wl_container_of(listener, xwayland_unmanaged_view, unmap);

#if !defined(NDEBUG)
	printf("UNMANAGED XWAYLAND UNMAP %p\n", xwayland_unmanaged_view);
#endif

	unmap(xwayland_unmanaged_view);
}

static void
destroy_handler(struct wl_listener *listener, void *data)
{
	struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view =
			wl_container_of(listener, xwayland_unmanaged_view, destroy);

#if !defined(NDEBUG)
	printf("UNMANAGED XWAYLAND DESTROY %p\n", xwayland_unmanaged_view);
#endif

	if (!xwayland_unmanaged_view->hidden) {
		unmap(xwayland_unmanaged_view);
		hikari_server_cursor_focus();
	}

	wl_list_remove(&xwayland_unmanaged_view->map.link);
	wl_list_remove(&xwayland_unmanaged_view->unmap.link);
	wl_list_remove(&xwayland_unmanaged_view->destroy.link);
	wl_list_remove(&xwayland_unmanaged_view->request_configure.link);

	hikari_free(xwayland_unmanaged_view);
}

static void
request_configure_handler(struct wl_listener *listener, void *data)
{
	struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view =
			wl_container_of(listener, xwayland_unmanaged_view, request_configure);

	struct wlr_xwayland_surface *surface = xwayland_unmanaged_view->surface;
	struct wlr_xwayland_surface_configure_event *event = data;

	wlr_xwayland_surface_configure(
			surface, event->x, event->y, event->width, event->height);
}

static struct wlr_surface *
surface_at(
		struct hikari_node *node, double lx, double ly, double *sx, double *sy)
{
	struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view =
			(struct hikari_xwayland_unmanaged_view *)node;

	struct wlr_box *geometry = &xwayland_unmanaged_view->geometry;

	double x = lx - geometry->x;
	double y = ly - geometry->y;

	return wlr_surface_surface_at(
			xwayland_unmanaged_view->surface->surface, x, y, sx, sy);
}

static void
focus(struct hikari_node *node)
{}

void
hikari_xwayland_unmanaged_view_init(
		struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view,
		struct wlr_xwayland_surface *xwayland_surface,
		struct hikari_workspace *workspace)
{
	xwayland_unmanaged_view->workspace = workspace;
	xwayland_unmanaged_view->node.surface_at = surface_at;
	xwayland_unmanaged_view->node.focus = focus;

#if !defined(NDEBUG)
	printf("UNMANAGED XWAYLAND NEW %p\n", xwayland_unmanaged_view);
#endif

	wlr_xwayland_surface_ping(xwayland_surface);

	xwayland_unmanaged_view->surface = xwayland_surface;
	xwayland_unmanaged_view->surface->data =
			(struct hikari_node *)xwayland_unmanaged_view;
	xwayland_unmanaged_view->hidden = true;

	xwayland_unmanaged_view->map.notify = map_handler;
	wl_signal_add(&xwayland_surface->events.map, &xwayland_unmanaged_view->map);

	xwayland_unmanaged_view->unmap.notify = unmap_handler;
	wl_signal_add(
			&xwayland_surface->events.unmap, &xwayland_unmanaged_view->unmap);

	xwayland_unmanaged_view->destroy.notify = destroy_handler;
	wl_signal_add(
			&xwayland_surface->events.destroy, &xwayland_unmanaged_view->destroy);

	xwayland_unmanaged_view->request_configure.notify = request_configure_handler;
	wl_signal_add(&xwayland_surface->events.request_configure,
			&xwayland_unmanaged_view->request_configure);
}

void
hikari_xwayland_unmanaged_evacuate(
		struct hikari_xwayland_unmanaged_view *xwayland_unmanaged_view,
		struct hikari_workspace *workspace)
{
	struct hikari_output *output = workspace->output;
	struct wlr_xwayland_surface *surface = xwayland_unmanaged_view->surface;
	struct wlr_box *geometry = &xwayland_unmanaged_view->geometry;

	xwayland_unmanaged_view->workspace = workspace;

	recalculate_geometry(geometry, surface, output);

	hikari_output_add_damage(output, &xwayland_unmanaged_view->geometry);
}
#endif