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#include <assert.h>
#include <stdlib.h>
#include <stdbool.h>
#include <wayland-server.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_surface.h>
#include <wlr/types/wlr_xdg_shell_v6.h>
#include <wlr/util/log.h>
#include "rootston/desktop.h"
#include "rootston/server.h"
#include "rootston/input.h"
static void get_size(const struct roots_view *view, struct wlr_box *box) {
assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
if (surface->geometry->width > 0 && surface->geometry->height > 0) {
box->width = surface->geometry->width;
box->height = surface->geometry->height;
} else {
box->width = view->wlr_surface->current->width;
box->height = view->wlr_surface->current->height;
}
}
static void activate(struct roots_view *view, bool active) {
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) {
wlr_xdg_toplevel_v6_set_activated(surface, active);
}
}
static void apply_size_constraints(struct wlr_xdg_surface_v6 *surface,
uint32_t width, uint32_t height, uint32_t *dest_width,
uint32_t *dest_height) {
*dest_width = width;
*dest_height = height;
struct wlr_xdg_toplevel_v6_state *state = &surface->toplevel_state->current;
if (width < state->min_width) {
*dest_width = state->min_width;
} else if (state->max_width > 0 &&
width > state->max_width) {
*dest_width = state->max_width;
}
if (height < state->min_height) {
*dest_height = state->min_height;
} else if (state->max_height > 0 &&
height > state->max_height) {
*dest_height = state->max_height;
}
}
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static void resize(struct roots_view *view, uint32_t width, uint32_t height) {
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;
}
uint32_t constrained_width, constrained_height;
apply_size_constraints(surface, width, height, &constrained_width,
&constrained_height);
wlr_xdg_toplevel_v6_set_size(surface, constrained_width,
constrained_height);
}
static void move_resize(struct roots_view *view, double x, double y,
uint32_t width, uint32_t height) {
assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
struct roots_xdg_surface_v6 *roots_surface = view->roots_xdg_surface_v6;
struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
if (surface->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
return;
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}
bool update_x = x != view->x;
bool update_y = y != view->y;
uint32_t constrained_width, constrained_height;
apply_size_constraints(surface, width, height, &constrained_width,
&constrained_height);
if (update_x) {
x = x + width - constrained_width;
}
if (update_y) {
y = y + height - constrained_height;
}
view->pending_move_resize.update_x = update_x;
view->pending_move_resize.update_y = update_y;
view->pending_move_resize.x = x;
view->pending_move_resize.y = y;
view->pending_move_resize.width = constrained_width;
view->pending_move_resize.height = constrained_height;
uint32_t serial = wlr_xdg_toplevel_v6_set_size(surface, constrained_width,
constrained_height);
if (serial > 0) {
roots_surface->pending_move_resize_configure_serial = serial;
} else {
view->x = x;
view->y = y;
}
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}
static void maximize(struct roots_view *view, bool maximized) {
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_maximized(surface, maximized);
}
static void close(struct roots_view *view) {
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) {
wlr_xdg_toplevel_v6_send_close(surface);
}
}
static void handle_request_move(struct wl_listener *listener, void *data) {
struct roots_xdg_surface_v6 *roots_xdg_surface =
wl_container_of(listener, roots_xdg_surface, request_move);
struct roots_view *view = roots_xdg_surface->view;
struct roots_input *input = view->desktop->server->input;
struct wlr_xdg_toplevel_v6_move_event *e = data;
struct roots_seat *seat = input_seat_from_wlr_seat(input, e->seat->seat);
// TODO verify event serial
if (!seat || seat->cursor->mode != ROOTS_CURSOR_PASSTHROUGH) {
return;
}
roots_seat_begin_move(seat, 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;
// TODO verify event serial
struct roots_seat *seat = input_seat_from_wlr_seat(input, e->seat->seat);
assert(seat);
if (!seat || seat->cursor->mode != ROOTS_CURSOR_PASSTHROUGH) {
return;
}
roots_seat_begin_resize(seat, view, e->edges);
}
static void handle_request_maximize(struct wl_listener *listener, void *data) {
struct roots_xdg_surface_v6 *roots_xdg_surface =
wl_container_of(listener, roots_xdg_surface, request_maximize);
struct roots_view *view = roots_xdg_surface->view;
struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
if (surface->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
return;
}
view_maximize(view, surface->toplevel_state->next.maximized);
}
static void handle_commit(struct wl_listener *listener, void *data) {
struct roots_xdg_surface_v6 *roots_surface =
wl_container_of(listener, roots_surface, commit);
struct roots_view *view = roots_surface->view;
struct wlr_xdg_surface_v6 *surface = view->xdg_surface_v6;
uint32_t pending_serial =
roots_surface->pending_move_resize_configure_serial;
if (pending_serial > 0 && pending_serial >= surface->configure_serial) {
struct wlr_box size;
get_size(view, &size);
if (view->pending_move_resize.update_x) {
view->x = view->pending_move_resize.x +
view->pending_move_resize.width - size.width;
}
if (view->pending_move_resize.update_y) {
view->y = view->pending_move_resize.y +
view->pending_move_resize.height - size.height;
}
if (pending_serial == surface->configure_serial) {
roots_surface->pending_move_resize_configure_serial = 0;
}
}
}
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);
view_teardown(roots_xdg_surface->view);
wl_list_remove(&roots_xdg_surface->commit.link);
wl_list_remove(&roots_xdg_surface->destroy.link);
wl_list_remove(&roots_xdg_surface->request_move.link);
wl_list_remove(&roots_xdg_surface->request_resize.link);
view_destroy(roots_xdg_surface->view);
free(roots_xdg_surface);
}
void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
struct wlr_xdg_surface_v6 *surface = data;
assert(surface->role != WLR_XDG_SURFACE_V6_ROLE_NONE);
if (surface->role == WLR_XDG_SURFACE_V6_ROLE_POPUP) {
wlr_log(L_DEBUG, "new xdg popup");
return;
}
struct roots_desktop *desktop =
wl_container_of(listener, desktop, xdg_shell_v6_surface);
wlr_log(L_DEBUG, "new xdg toplevel: title=%s, app_id=%s",
surface->title, surface->app_id);
wlr_xdg_surface_v6_ping(surface);
struct roots_xdg_surface_v6 *roots_surface =
calloc(1, sizeof(struct roots_xdg_surface_v6));
if (!roots_surface) {
return;
}
roots_surface->commit.notify = handle_commit;
wl_signal_add(&surface->events.commit, &roots_surface->commit);
roots_surface->destroy.notify = handle_destroy;
wl_signal_add(&surface->events.destroy, &roots_surface->destroy);
roots_surface->request_move.notify = handle_request_move;
wl_signal_add(&surface->events.request_move, &roots_surface->request_move);
roots_surface->request_resize.notify = handle_request_resize;
wl_signal_add(&surface->events.request_resize,
&roots_surface->request_resize);
roots_surface->request_maximize.notify = handle_request_maximize;
wl_signal_add(&surface->events.request_maximize,
&roots_surface->request_maximize);
struct roots_view *view = calloc(1, sizeof(struct roots_view));
if (!view) {
free(roots_surface);
return;
}
view->type = ROOTS_XDG_SHELL_V6_VIEW;
view->xdg_surface_v6 = surface;
view->roots_xdg_surface_v6 = roots_surface;
view->wlr_surface = surface->surface;
view->get_size = get_size;
view->activate = activate;
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view->resize = resize;
view->move_resize = move_resize;
view->maximize = maximize;
view->close = close;
view->desktop = desktop;
roots_surface->view = view;
wlr_list_add(desktop->views, view);
view_setup(view);
}