absinthe/src/focus.c

#include <wayland-server-core.h>

#include "types.h"
#include "absinthe-toplevel.h"

void focus_toplevel(struct absinthe_toplevel *toplevel)
{
    if (!toplevel)
        return;

    struct absinthe_server *server = toplevel->server;
    struct wlr_seat *seat = server->seat;
    struct wlr_surface *prev_surface = seat->keyboard_state.focused_surface;
    struct wlr_surface *surface = toplevel->xdg_toplevel->base->surface;

    if (surface == prev_surface)
        return;

    if (prev_surface) {
        struct wlr_xdg_toplevel *prev_toplevel = wlr_xdg_toplevel_try_from_wlr_surface(prev_surface);
        if (prev_toplevel) {
            wlr_xdg_toplevel_set_activated(prev_toplevel, false);
            absinthe_toplevel_set_border_color(prev_toplevel->base->data, unfocused_border_color);
        }
    }

    struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat);
    wlr_scene_node_raise_to_top(&toplevel->scene_tree->node);
    wl_list_remove(&toplevel->link);
    wl_list_insert(&server->toplevels, &toplevel->link);
    wlr_xdg_toplevel_set_activated(toplevel->xdg_toplevel, true);
    absinthe_toplevel_set_border_color(toplevel, focused_border_color);

    if (keyboard)
        wlr_seat_keyboard_notify_enter(seat, surface, keyboard->keycodes, keyboard->num_keycodes, &keyboard->modifiers);
}