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#define _POSIX_C_SOURCE 199309L
#include <stdbool.h>
#include <stdlib.h>
#include <wayland-server.h>
#include <wlr/xwayland.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_output.h>
#include "sway/container.h"
#include "sway/layout.h"
#include "sway/server.h"
#include "sway/view.h"
#include "sway/output.h"
#include "sway/input/seat.h"
#include "sway/input/input-manager.h"
#include "log.h"
static bool assert_xwayland(struct sway_view *view) {
return sway_assert(view->type == SWAY_XWAYLAND_VIEW && view->wlr_xwayland_surface,
"Expected xwayland view!");
}
static const char *get_prop(struct sway_view *view, enum sway_view_prop prop) {
if (!assert_xwayland(view)) {
return NULL;
}
switch (prop) {
case VIEW_PROP_TITLE:
return view->wlr_xwayland_surface->title;
case VIEW_PROP_CLASS:
return view->wlr_xwayland_surface->class;
default:
return NULL;
}
}
static void set_size(struct sway_view *view, int width, int height) {
if (!assert_xwayland(view)) {
return;
}
view->sway_xwayland_surface->pending_width = width;
view->sway_xwayland_surface->pending_height = height;
struct wlr_xwayland_surface *xsurface = view->wlr_xwayland_surface;
wlr_xwayland_surface_configure(xsurface, view->swayc->x, view->swayc->y,
width, height);
}
static void set_position(struct sway_view *view, double ox, double oy) {
if (!assert_xwayland(view)) {
return;
}
swayc_t *output = swayc_parent_by_type(view->swayc, C_OUTPUT);
if (!sway_assert(output, "view must be within tree to set position")) {
return;
}
swayc_t *root = swayc_parent_by_type(output, C_ROOT);
if (!sway_assert(root, "output must be within tree to set position")) {
return;
}
struct wlr_output_layout *layout = root->sway_root->output_layout;
struct wlr_output_layout_output *loutput =
wlr_output_layout_get(layout, output->sway_output->wlr_output);
if (!sway_assert(loutput, "output must be within layout to set position")) {
return;
}
view->swayc->x = ox;
view->swayc->y = oy;
wlr_xwayland_surface_configure(view->wlr_xwayland_surface,
ox + loutput->x, oy + loutput->y,
view->width, view->height);
}
static void set_activated(struct sway_view *view, bool activated) {
if (!assert_xwayland(view)) {
return;
}
struct wlr_xwayland_surface *surface = view->wlr_xwayland_surface;
wlr_xwayland_surface_activate(surface, activated);
}
static void handle_commit(struct wl_listener *listener, void *data) {
struct sway_xwayland_surface *sway_surface =
wl_container_of(listener, sway_surface, commit);
struct sway_view *view = sway_surface->view;
// NOTE: We intentionally discard the view's desired width here
// TODO: Let floating views do whatever
view->width = sway_surface->pending_width;
view->height = sway_surface->pending_height;
}
static void handle_destroy(struct wl_listener *listener, void *data) {
struct sway_xwayland_surface *sway_surface =
wl_container_of(listener, sway_surface, destroy);
wl_list_remove(&sway_surface->commit.link);
wl_list_remove(&sway_surface->destroy.link);
wl_list_remove(&sway_surface->request_configure.link);
swayc_t *parent = destroy_view(sway_surface->view->swayc);
free(sway_surface->view);
free(sway_surface);
arrange_windows(parent, -1, -1);
}
static void handle_configure_request(struct wl_listener *listener, void *data) {
struct sway_xwayland_surface *sway_surface =
wl_container_of(listener, sway_surface, request_configure);
struct wlr_xwayland_surface_configure_event *ev = data;
struct sway_view *view = sway_surface->view;
struct wlr_xwayland_surface *xsurface = view->wlr_xwayland_surface;
// TODO: floating windows are allowed to move around like this, but make
// sure tiling windows always stay in place.
wlr_xwayland_surface_configure(xsurface, ev->x, ev->y,
ev->width, ev->height);
}
void handle_xwayland_surface(struct wl_listener *listener, void *data) {
struct sway_server *server = wl_container_of(
listener, server, xwayland_surface);
struct wlr_xwayland_surface *xsurface = data;
if (xsurface->override_redirect) {
// TODO: floating popups
return;
}
sway_log(L_DEBUG, "New xwayland surface title='%s' class='%s'",
xsurface->title, xsurface->class);
struct sway_xwayland_surface *sway_surface =
calloc(1, sizeof(struct sway_xwayland_surface));
if (!sway_assert(sway_surface, "Failed to allocate surface!")) {
return;
}
struct sway_view *sway_view = calloc(1, sizeof(struct sway_view));
if (!sway_assert(sway_view, "Failed to allocate view!")) {
return;
}
sway_view->type = SWAY_XWAYLAND_VIEW;
sway_view->iface.get_prop = get_prop;
sway_view->iface.set_size = set_size;
sway_view->iface.set_position = set_position;
sway_view->iface.set_activated = set_activated;
sway_view->wlr_xwayland_surface = xsurface;
sway_view->sway_xwayland_surface = sway_surface;
// TODO remove from the tree when the surface goes away (unmapped)
sway_view->surface = xsurface->surface;
sway_surface->view = sway_view;
// TODO:
// - Wire up listeners
// - Handle popups
// - Look up pid and open on appropriate workspace
// - Set new view to maximized so it behaves nicely
// - Criteria
sway_surface->commit.notify = handle_commit;
wl_signal_add(&xsurface->surface->events.commit, &sway_surface->commit);
sway_surface->destroy.notify = handle_destroy;
wl_signal_add(&xsurface->events.destroy, &sway_surface->destroy);
sway_surface->request_configure.notify = handle_configure_request;
wl_signal_add(&xsurface->events.request_configure,
&sway_surface->request_configure);
// TODO: actual focus semantics
swayc_t *parent = root_container.children->items[0];
parent = parent->children->items[0]; // workspace
swayc_t *cont = new_view(parent, sway_view);
sway_view->swayc = cont;
arrange_windows(cont->parent, -1, -1);
sway_input_manager_set_focus(input_manager, cont);
}
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