int bind_to_view(const Arg *arg) {

	unsigned int target = arg->ui;

	if (view_current_to_back && selmon->pertag->curtag &&
		(target & TAGMASK) == (selmon->tagset[selmon->seltags])) {
		if (selmon->pertag->prevtag)
			target = 1 << (selmon->pertag->prevtag - 1);
		else
			target = 0;
	}

	if (!view_current_to_back &&
		(target & TAGMASK) == (selmon->tagset[selmon->seltags])) {
		return 0;
	}

	if ((int)target == INT_MIN && selmon->pertag->curtag == 0) {
		if (view_current_to_back && selmon->pertag->prevtag)
			target = 1 << (selmon->pertag->prevtag - 1);
		else
			target = 0;
	}

	if (target == 0 || (int)target == INT_MIN) {
		view(&(Arg){.ui = ~0 & TAGMASK, .i = arg->i}, false);
	} else {
		view(&(Arg){.ui = target, .i = arg->i}, true);
	}
	return 0;
}

int chvt(const Arg *arg) {
	wlr_session_change_vt(session, arg->ui);
	return 0;
}

int create_virtual_output(const Arg *arg) {

	if (!wlr_backend_is_multi(backend)) {
		wlr_log(WLR_ERROR, "Expected a multi backend");
		return 0;
	}

	bool done = false;
	wlr_multi_for_each_backend(backend, create_output, &done);

	if (!done) {
		wlr_log(WLR_ERROR, "Failed to create virtual output");
		return 0;
	}

	wlr_log(WLR_INFO, "Virtual output created");
	return 0;
}

int destroy_all_virtual_output(const Arg *arg) {

	if (!wlr_backend_is_multi(backend)) {
		wlr_log(WLR_ERROR, "Expected a multi backend");
		return 0;
	}

	Monitor *m, *tmp;
	wl_list_for_each_safe(m, tmp, &mons, link) {
		if (wlr_output_is_headless(m->wlr_output)) {
			// if(selmon == m)
			//   selmon = NULL;
			wlr_output_destroy(m->wlr_output);
			wlr_log(WLR_INFO, "Virtual output destroyed");
		}
	}
	return 0;
}

int defaultgaps(const Arg *arg) {
	setgaps(gappoh, gappov, gappih, gappiv);
	return 0;
}

int exchange_client(const Arg *arg) {
	Client *c = selmon->sel;
	if (!c || c->isfloating || c->isfullscreen || c->ismaxmizescreen)
		return 0;
	exchange_two_client(c, direction_select(arg));
	return 0;
}

int exchange_stack_client(const Arg *arg) {
	Client *c = selmon->sel;
	Client *tc = NULL;
	if (!c || c->isfloating || c->isfullscreen || c->ismaxmizescreen)
		return 0;
	if (arg->i == NEXT) {
		tc = get_next_stack_client(c, false);
	} else {
		tc = get_next_stack_client(c, true);
	}
	if (tc)
		exchange_two_client(c, tc);
	return 0;
}

int focusdir(const Arg *arg) {
	Client *c = NULL;
	c = direction_select(arg);
	if (c) {
		focusclient(c, 1);
		if (warpcursor)
			warp_cursor(c);
	} else {
		if (config.focus_cross_tag) {
			if (arg->i == LEFT || arg->i == UP)
				viewtoleft_have_client(&(Arg){0});
			if (arg->i == RIGHT || arg->i == DOWN)
				viewtoright_have_client(&(Arg){0});
		} else if (config.focus_cross_monitor) {
			focusmon(arg);
		}
	}
	return 0;
}

int focuslast(const Arg *arg) {

	Client *c = NULL;
	Client *tc = NULL;
	bool begin = false;
	unsigned int target = 0;

	wl_list_for_each(c, &fstack, flink) {
		if (c->iskilling || c->isminied || c->isunglobal ||
			!client_surface(c)->mapped || client_is_unmanaged(c) ||
			client_should_ignore_focus(c))
			continue;

		if (selmon && !selmon->sel) {
			tc = c;
			break;
		}

		if (selmon && c == selmon->sel && !begin) {
			begin = true;
			continue;
		}

		if (begin) {
			tc = c;
			break;
		}
	}

	if (!tc || !client_surface(tc)->mapped)
		return 0;

	if ((int)tc->tags > 0) {
		focusclient(tc, 1);
		target = get_tags_first_tag(tc->tags);
		view(&(Arg){.ui = target}, true);
	}
	return 0;
}

int toggle_trackpad_enable(const Arg *arg) {
	disable_trackpad = !disable_trackpad;
	return 0;
}

int focusmon(const Arg *arg) {
	Client *c = NULL, *old_selmon_sel = NULL;
	Monitor *m = NULL;

	if (arg->i != UNDIR) {
		m = dirtomon(arg->i);
	} else if (arg->v) {
		wl_list_for_each(m, &mons, link) {
			if (!m->wlr_output->enabled) {
				continue;
			}
			if (regex_match(arg->v, m->wlr_output->name)) {
				break;
			}
		}
	} else {
		return 0;
	}

	if (!m || !m->wlr_output->enabled)
		return 0;

	old_selmon_sel = selmon->sel;
	selmon = m;
	if (warpcursor) {
		warp_cursor_to_selmon(selmon);
	}
	c = focustop(selmon);
	if (!c) {
		selmon->sel = NULL;
		wlr_seat_pointer_notify_clear_focus(seat);
		wlr_seat_keyboard_notify_clear_focus(seat);
	} else
		focusclient(c, 1);

	if (old_selmon_sel) {
		setborder_color(old_selmon_sel);
	}
	return 0;
}

int focusstack(const Arg *arg) {
	/* Focus the next or previous client (in tiling order) on selmon */
	Client *sel = focustop(selmon);
	Client *tc = NULL;

	if (!sel || (sel->isfullscreen && !client_has_children(sel)))
		return 0;
	if (arg->i == NEXT) {
		tc = get_next_stack_client(sel, false);
	} else {
		tc = get_next_stack_client(sel, true);
	}
	/* If only one client is visible on selmon, then c == sel */

	if (!tc)
		return 0;

	focusclient(tc, 1);
	if (warpcursor)
		warp_cursor(tc);
	return 0;
}

int incnmaster(const Arg *arg) {
	if (!arg || !selmon)
		return 0;
	selmon->pertag->nmasters[selmon->pertag->curtag] =
		MAX(selmon->pertag->nmasters[selmon->pertag->curtag] + arg->i, 0);
	arrange(selmon, false);
	return 0;
}

int incgaps(const Arg *arg) {
	setgaps(selmon->gappoh + arg->i, selmon->gappov + arg->i,
			selmon->gappih + arg->i, selmon->gappiv + arg->i);
	return 0;
}

int incigaps(const Arg *arg) {
	setgaps(selmon->gappoh, selmon->gappov, selmon->gappih + arg->i,
			selmon->gappiv + arg->i);
	return 0;
}

int incogaps(const Arg *arg) {
	setgaps(selmon->gappoh + arg->i, selmon->gappov + arg->i, selmon->gappih,
			selmon->gappiv);
	return 0;
}

int incihgaps(const Arg *arg) {
	setgaps(selmon->gappoh, selmon->gappov, selmon->gappih + arg->i,
			selmon->gappiv);
	return 0;
}

int incivgaps(const Arg *arg) {
	setgaps(selmon->gappoh, selmon->gappov, selmon->gappih,
			selmon->gappiv + arg->i);
	return 0;
}

int incohgaps(const Arg *arg) {
	setgaps(selmon->gappoh + arg->i, selmon->gappov, selmon->gappih,
			selmon->gappiv);
	return 0;
}

int incovgaps(const Arg *arg) {
	setgaps(selmon->gappoh, selmon->gappov + arg->i, selmon->gappih,
			selmon->gappiv);
	return 0;
}

int increase_proportion(const Arg *arg) {
	if (selmon->sel) {
		unsigned int max_client_width =
			selmon->w.width - 2 * scroller_structs - gappih;
		selmon->sel->scroller_proportion =
			MIN(MAX(arg->f + selmon->sel->scroller_proportion, 0.1), 1.0);
		selmon->sel->geom.width = max_client_width * arg->f;
		arrange(selmon, false);
	}
	return 0;
}

int setmfact(const Arg *arg) {
	float f;
	Client *c = NULL;

	if (!arg || !selmon ||
		!selmon->pertag->ltidxs[selmon->pertag->curtag]->arrange)
		return 0;
	f = arg->f < 1.0 ? arg->f + selmon->pertag->mfacts[selmon->pertag->curtag]
					 : arg->f - 1.0;
	if (f < 0.1 || f > 0.9)
		return 0;

	selmon->pertag->mfacts[selmon->pertag->curtag] = f;
	wl_list_for_each(c, &clients, link) {
		if (VISIBLEON(c, selmon) && ISTILED(c)) {
			c->master_mfact_per = f;
		}
	}
	arrange(selmon, false);
	return 0;
}

int killclient(const Arg *arg) {
	Client *c = NULL;
	c = selmon->sel;
	if (c) {
		pending_kill_client(c);
	}
	return 0;
}

int moveresize(const Arg *arg) {
	if (cursor_mode != CurNormal && cursor_mode != CurPressed)
		return 0;
	xytonode(cursor->x, cursor->y, NULL, &grabc, NULL, NULL, NULL);
	if (!grabc || client_is_unmanaged(grabc) || grabc->isfullscreen ||
		grabc->ismaxmizescreen) {
		grabc = NULL;
		return 0;
	}
	/* Float the window and tell motionnotify to grab it */
	if (grabc->isfloating == 0 && arg->ui == CurMove) {
		grabc->drag_to_tile = true;
		setfloating(grabc, 1);
	}

	switch (cursor_mode = arg->ui) {
	case CurMove:

		grabcx = cursor->x - grabc->geom.x;
		grabcy = cursor->y - grabc->geom.y;
		wlr_cursor_set_xcursor(cursor, cursor_mgr, "grab");
		break;
	case CurResize:
		/* Doesn't work for X11 output - the next absolute motion event
		 * returns the cursor to where it started */
		if (grabc->isfloating) {
			wlr_cursor_warp_closest(cursor, NULL,
									grabc->geom.x + grabc->geom.width,
									grabc->geom.y + grabc->geom.height);
			wlr_cursor_set_xcursor(cursor, cursor_mgr, "bottom_right_corner");
		} else {
			wlr_cursor_set_xcursor(cursor, cursor_mgr, "grab");
		}
		break;
	}
	return 0;
}

int movewin(const Arg *arg) {
	Client *c = NULL;
	c = selmon->sel;
	if (!c || c->isfullscreen)
		return 0;
	if (!c->isfloating)
		togglefloating(NULL);

	switch (arg->ui) {
	case NUM_TYPE_MINUS:
		c->geom.x -= arg->i;
		break;
	case NUM_TYPE_PLUS:
		c->geom.x += arg->i;
		break;
	default:
		c->geom.x = arg->i;
		break;
	}

	switch (arg->ui2) {
	case NUM_TYPE_MINUS:
		c->geom.y -= arg->i2;
		break;
	case NUM_TYPE_PLUS:
		c->geom.y += arg->i2;
		break;
	default:
		c->geom.y = arg->i2;
		break;
	}

	c->iscustomsize = 1;
	c->float_geom = c->geom;
	resize(c, c->geom, 0);
	return 0;
}

int quit(const Arg *arg) {
	wl_display_terminate(dpy);
	return 0;
}

int resizewin(const Arg *arg) {
	Client *c = NULL;
	c = selmon->sel;
	int offsetx = 0, offsety = 0;

	if (!c || c->isfullscreen || c->ismaxmizescreen)
		return 0;

	if (ISTILED(c)) {
		switch (arg->ui) {
		case NUM_TYPE_MINUS:
			offsetx = -arg->i;
			break;
		case NUM_TYPE_PLUS:
			offsetx = arg->i;
			break;
		default:
			offsetx = arg->i;
			break;
		}

		switch (arg->ui2) {
		case NUM_TYPE_MINUS:
			offsety = -arg->i2;
			break;
		case NUM_TYPE_PLUS:
			offsety = arg->i2;
			break;
		default:
			offsety = arg->i2;
			break;
		}
		resize_tile_client(c, false, offsetx, offsety, 0);
		return 0;
	}

	switch (arg->ui) {
	case NUM_TYPE_MINUS:
		c->geom.width -= arg->i;
		break;
	case NUM_TYPE_PLUS:
		c->geom.width += arg->i;
		break;
	default:
		c->geom.width = arg->i;
		break;
	}

	switch (arg->ui2) {
	case NUM_TYPE_MINUS:
		c->geom.height -= arg->i2;
		break;
	case NUM_TYPE_PLUS:
		c->geom.height += arg->i2;
		break;
	default:
		c->geom.height = arg->i2;
		break;
	}

	c->iscustomsize = 1;
	c->float_geom = c->geom;
	resize(c, c->geom, 0);
	return 0;
}

int restore_minimized(const Arg *arg) {
	Client *c = NULL;

	if (selmon && selmon->isoverview)
		return 0;

	if (selmon && selmon->sel && selmon->sel->is_in_scratchpad &&
		selmon->sel->is_scratchpad_show) {
		selmon->sel->isminied = 0;
		selmon->sel->is_scratchpad_show = 0;
		selmon->sel->is_in_scratchpad = 0;
		selmon->sel->isnamedscratchpad = 0;
		setborder_color(selmon->sel);
		return 0;
	}

	wl_list_for_each(c, &clients, link) {
		if (c->isminied) {
			c->is_scratchpad_show = 0;
			c->is_in_scratchpad = 0;
			c->isnamedscratchpad = 0;
			show_hide_client(c);
			setborder_color(c);
			arrange(c->mon, false);
			focusclient(c, 0);
			warp_cursor(c);
			return 0;
		}
	}
	return 0;
}

int setlayout(const Arg *arg) {
	int jk;

	for (jk = 0; jk < LENGTH(layouts); jk++) {
		if (strcmp(layouts[jk].name, arg->v) == 0) {
			selmon->pertag->ltidxs[selmon->pertag->curtag] = &layouts[jk];

			arrange(selmon, false);
			printstatus();
			return 0;
		}
	}
	return 0;
}

int setkeymode(const Arg *arg) {
	snprintf(keymode.mode, sizeof(keymode.mode), "%.27s", arg->v);
	if (strcmp(keymode.mode, "default") == 0) {
		keymode.isdefault = true;
	} else {
		keymode.isdefault = false;
	}
	printstatus();
	return 1;
}

int set_proportion(const Arg *arg) {
	if (selmon->sel) {
		unsigned int max_client_width =
			selmon->w.width - 2 * scroller_structs - gappih;
		selmon->sel->scroller_proportion = arg->f;
		selmon->sel->geom.width = max_client_width * arg->f;
		// resize(selmon->sel, selmon->sel->geom, 0);
		arrange(selmon, false);
	}
	return 0;
}

int smartmovewin(const Arg *arg) {
	Client *c = NULL, *tc = NULL;
	int nx, ny;
	int buttom, top, left, right, tar;
	c = selmon->sel;
	if (!c || c->isfullscreen)
		return 0;
	if (!c->isfloating)
		setfloating(selmon->sel, true);
	nx = c->geom.x;
	ny = c->geom.y;

	switch (arg->i) {
	case UP:
		tar = -99999;
		top = c->geom.y;
		ny -= c->mon->w.height / 4;

		wl_list_for_each(tc, &clients, link) {
			if (!VISIBLEON(tc, selmon) || !tc->isfloating || tc == c)
				continue;
			if (c->geom.x + c->geom.width < tc->geom.x ||
				c->geom.x > tc->geom.x + tc->geom.width)
				continue;
			buttom = tc->geom.y + tc->geom.height + gappiv;
			if (top > buttom && ny < buttom) {
				tar = MAX(tar, buttom);
			};
		}

		ny = tar == -99999 ? ny : tar;
		ny = MAX(ny, c->mon->w.y + c->mon->gappov);
		break;
	case DOWN:
		tar = 99999;
		buttom = c->geom.y + c->geom.height;
		ny += c->mon->w.height / 4;

		wl_list_for_each(tc, &clients, link) {
			if (!VISIBLEON(tc, selmon) || !tc->isfloating || tc == c)
				continue;
			if (c->geom.x + c->geom.width < tc->geom.x ||
				c->geom.x > tc->geom.x + tc->geom.width)
				continue;
			top = tc->geom.y - gappiv;
			if (buttom < top && (ny + c->geom.height) > top) {
				tar = MIN(tar, top - c->geom.height);
			};
		}
		ny = tar == 99999 ? ny : tar;
		ny = MIN(ny, c->mon->w.y + c->mon->w.height - c->geom.height -
						 c->mon->gappov);
		break;
	case LEFT:
		tar = -99999;
		left = c->geom.x;
		nx -= c->mon->w.width / 6;

		wl_list_for_each(tc, &clients, link) {
			if (!VISIBLEON(tc, selmon) || !tc->isfloating || tc == c)
				continue;
			if (c->geom.y + c->geom.height < tc->geom.y ||
				c->geom.y > tc->geom.y + tc->geom.height)
				continue;
			right = tc->geom.x + tc->geom.width + gappih;
			if (left > right && nx < right) {
				tar = MAX(tar, right);
			};
		}

		nx = tar == -99999 ? nx : tar;
		nx = MAX(nx, c->mon->w.x + c->mon->gappoh);
		break;
	case RIGHT:
		tar = 99999;
		right = c->geom.x + c->geom.width;
		nx += c->mon->w.width / 6;
		wl_list_for_each(tc, &clients, link) {
			if (!VISIBLEON(tc, selmon) || !tc->isfloating || tc == c)
				continue;
			if (c->geom.y + c->geom.height < tc->geom.y ||
				c->geom.y > tc->geom.y + tc->geom.height)
				continue;
			left = tc->geom.x - gappih;
			if (right < left && (nx + c->geom.width) > left) {
				tar = MIN(tar, left - c->geom.width);
			};
		}
		nx = tar == 99999 ? nx : tar;
		nx = MIN(nx, c->mon->w.x + c->mon->w.width - c->geom.width -
						 c->mon->gappoh);
		break;
	}

	c->float_geom = (struct wlr_box){
		.x = nx, .y = ny, .width = c->geom.width, .height = c->geom.height};
	c->iscustomsize = 1;
	resize(c, c->float_geom, 1);
	return 0;
}

int smartresizewin(const Arg *arg) {
	Client *c = NULL, *tc = NULL;
	int nw, nh;
	int buttom, top, left, right, tar;
	c = selmon->sel;
	if (!c || c->isfullscreen)
		return 0;
	if (!c->isfloating)
		setfloating(c, true);
	nw = c->geom.width;
	nh = c->geom.height;

	switch (arg->i) {
	case UP:
		nh -= selmon->w.height / 8;
		nh = MAX(nh, selmon->w.height / 10);
		break;
	case DOWN:
		tar = -99999;
		buttom = c->geom.y + c->geom.height;
		nh += selmon->w.height / 8;

		wl_list_for_each(tc, &clients, link) {
			if (!VISIBLEON(tc, selmon) || !tc->isfloating || tc == c)
				continue;
			if (c->geom.x + c->geom.width < tc->geom.x ||
				c->geom.x > tc->geom.x + tc->geom.width)
				continue;
			top = tc->geom.y - gappiv;
			if (buttom < top && (nh + c->geom.y) > top) {
				tar = MAX(tar, top - c->geom.y);
			};
		}
		nh = tar == -99999 ? nh : tar;
		if (c->geom.y + nh + gappov > selmon->w.y + selmon->w.height)
			nh = selmon->w.y + selmon->w.height - c->geom.y - gappov;
		break;
	case LEFT:
		nw -= selmon->w.width / 16;
		nw = MAX(nw, selmon->w.width / 10);
		break;
	case RIGHT:
		tar = 99999;
		right = c->geom.x + c->geom.width;
		nw += selmon->w.width / 16;
		wl_list_for_each(tc, &clients, link) {
			if (!VISIBLEON(tc, selmon) || !tc->isfloating || tc == c)
				continue;
			if (c->geom.y + c->geom.height < tc->geom.y ||
				c->geom.y > tc->geom.y + tc->geom.height)
				continue;
			left = tc->geom.x - gappih;
			if (right < left && (nw + c->geom.x) > left) {
				tar = MIN(tar, left - c->geom.x);
			};
		}

		nw = tar == 99999 ? nw : tar;
		if (c->geom.x + nw + gappoh > selmon->w.x + selmon->w.width)
			nw = selmon->w.x + selmon->w.width - c->geom.x - gappoh;
		break;
	}

	c->float_geom = (struct wlr_box){
		.x = c->geom.x, .y = c->geom.y, .width = nw, .height = nh};
	c->iscustomsize = 1;
	resize(c, c->float_geom, 1);
	return 0;
}

int centerwin(const Arg *arg) {
	Client *c = NULL;
	c = selmon->sel;

	if (!c || c->isfullscreen)
		return 0;
	if (!c->isfloating)
		setfloating(c, true);

	c->float_geom = setclient_coordinate_center(c, c->geom, 0, 0);
	c->iscustomsize = 1;
	resize(c, c->float_geom, 1);
	return 0;
}

int spawn_shell(const Arg *arg) {
	if (!arg->v)
		return 0;

	if (fork() == 0) {
		// 1. 忽略可能导致 coredump 的信号
		signal(SIGSEGV, SIG_IGN);
		signal(SIGABRT, SIG_IGN);
		signal(SIGILL, SIG_IGN);

		dup2(STDERR_FILENO, STDOUT_FILENO);
		setsid();

		execlp("sh", "sh", "-c", arg->v, (char *)NULL);

		// fallback to bash
		execlp("bash", "bash", "-c", arg->v, (char *)NULL);

		// if execlp fails, we should not reach here
		wlr_log(WLR_ERROR,
				"mango: failed to execute command '%s' with shell: %s\n",
				arg->v, strerror(errno));
		_exit(EXIT_FAILURE);
	}
	return 0;
}

int spawn(const Arg *arg) {

	if (!arg->v)
		return 0;

	if (fork() == 0) {
		// 1. 忽略可能导致 coredump 的信号
		signal(SIGSEGV, SIG_IGN);
		signal(SIGABRT, SIG_IGN);
		signal(SIGILL, SIG_IGN);

		dup2(STDERR_FILENO, STDOUT_FILENO);
		setsid();

		// 2. 解析参数
		char *argv[64];
		int argc = 0;
		char *token = strtok((char *)arg->v, " ");
		while (token != NULL && argc < 63) {
			wordexp_t p;
			if (wordexp(token, &p, 0) == 0) {
				argv[argc++] = p.we_wordv[0];
			} else {
				argv[argc++] = token;
			}
			token = strtok(NULL, " ");
		}
		argv[argc] = NULL;

		// 3. 执行命令
		execvp(argv[0], argv);

		// 4. execvp 失败时：打印错误并直接退出（避免 coredump）
		wlr_log(WLR_ERROR, "mango: execvp '%s' failed: %s\n", argv[0],
				strerror(errno));
		_exit(EXIT_FAILURE); // 使用 _exit 避免缓冲区刷新等操作
	}
	return 0;
}

int spawn_on_empty(const Arg *arg) {
	bool is_empty = true;
	Client *c = NULL;

	wl_list_for_each(c, &clients, link) {
		if (arg->ui & c->tags && c->mon == selmon) {
			is_empty = false;
			break;
		}
	}
	if (!is_empty) {
		view(arg, true);
		return 0;
	} else {
		view(arg, true);
		spawn(arg);
	}
	return 0;
}

int switch_keyboard_layout(const Arg *arg) {
	if (!kb_group || !kb_group->wlr_group || !seat) {
		wlr_log(WLR_ERROR, "Invalid keyboard group or seat");
		return 0;
	}

	struct wlr_keyboard *keyboard = &kb_group->wlr_group->keyboard;
	if (!keyboard || !keyboard->keymap) {
		wlr_log(WLR_ERROR, "Invalid keyboard or keymap");
		return 0;
	}

	// 1. 获取当前布局和计算下一个布局
	xkb_layout_index_t current = xkb_state_serialize_layout(
		keyboard->xkb_state, XKB_STATE_LAYOUT_EFFECTIVE);
	const int num_layouts = xkb_keymap_num_layouts(keyboard->keymap);
	if (num_layouts < 2) {
		wlr_log(WLR_INFO, "Only one layout available");
		return 0;
	}
	xkb_layout_index_t next = (current + 1) % num_layouts;

	// 2. 创建上下文
	struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
	if (!context) {
		wlr_log(WLR_ERROR, "Failed to create XKB context");
		return 0;
	}

	// 3. 分配并获取布局缩写
	const char **layout_ids = calloc(num_layouts, sizeof(char *));
	if (!layout_ids) {
		wlr_log(WLR_ERROR, "Failed to allocate layout IDs");
		goto cleanup_context;
	}

	for (int i = 0; i < num_layouts; i++) {
		layout_ids[i] =
			get_layout_abbr(xkb_keymap_layout_get_name(keyboard->keymap, i));
		if (!layout_ids[i]) {
			wlr_log(WLR_ERROR, "Failed to get layout abbreviation");
			goto cleanup_layouts;
		}
	}

	// 4. 直接修改 rules.layout（保持原有逻辑）
	struct xkb_rule_names rules = xkb_rules;
	// 验证规则是否有效
	if (!check_keyboard_rules_validate(&rules)) {
		wlr_log(WLR_ERROR,
				"Keyboard rules validation failed, skipping layout reset");
		rules = xkb_default_rules;
	}

	char *layout_buf = (char *)rules.layout; // 假设这是可修改的

	// 清空原有内容（安全方式）
	unsigned int layout_buf_size = strlen(layout_buf) + 1;
	memset(layout_buf, 0, layout_buf_size);

	// 构建新的布局字符串
	for (int i = 0; i < num_layouts; i++) {
		const char *layout = layout_ids[(next + i) % num_layouts];

		if (i > 0) {
			strncat(layout_buf, ",", layout_buf_size - strlen(layout_buf) - 1);
		}

		if (strchr(layout, ',')) {
			// 处理包含逗号的布局名
			char *quoted = malloc(strlen(layout) + 3);
			if (quoted) {
				snprintf(quoted, strlen(layout) + 3, "\"%s\"", layout);
				strncat(layout_buf, quoted,
						layout_buf_size - strlen(layout_buf) - 1);
				free(quoted);
			}
		} else {
			strncat(layout_buf, layout,
					layout_buf_size - strlen(layout_buf) - 1);
		}
	}

	// 5. 创建新 keymap
	struct xkb_keymap *new_keymap =
		xkb_keymap_new_from_names(context, &rules, XKB_KEYMAP_COMPILE_NO_FLAGS);
	if (!new_keymap) {
		wlr_log(WLR_ERROR, "Failed to create keymap for layouts: %s",
				rules.layout);
		goto cleanup_layouts;
	}

	// 6. 应用新 keymap
	unsigned int depressed = keyboard->modifiers.depressed;
	unsigned int latched = keyboard->modifiers.latched;
	unsigned int locked = keyboard->modifiers.locked;

	wlr_keyboard_set_keymap(keyboard, new_keymap);
	wlr_keyboard_notify_modifiers(keyboard, depressed, latched, locked, 0);
	keyboard->modifiers.group = 0;

	// 7. 更新 seat
	wlr_seat_set_keyboard(seat, keyboard);
	wlr_seat_keyboard_notify_modifiers(seat, &keyboard->modifiers);

	// 8. 清理资源
	xkb_keymap_unref(new_keymap);

cleanup_layouts:
	free(layout_ids);

cleanup_context:
	xkb_context_unref(context);

	printstatus();
	return 0;
}

int switch_layout(const Arg *arg) {

	int jk, ji;
	char *target_layout_name = NULL;
	unsigned int len;

	if (config.circle_layout_count != 0) {
		for (jk = 0; jk < config.circle_layout_count; jk++) {

			len = MAX(
				strlen(config.circle_layout[jk]),
				strlen(selmon->pertag->ltidxs[selmon->pertag->curtag]->name));

			if (strncmp(config.circle_layout[jk],
						selmon->pertag->ltidxs[selmon->pertag->curtag]->name,
						len) == 0) {
				target_layout_name = jk == config.circle_layout_count - 1
										 ? config.circle_layout[0]
										 : config.circle_layout[jk + 1];
				break;
			}
		}

		if (!target_layout_name) {
			target_layout_name = config.circle_layout[0];
		}

		for (ji = 0; ji < LENGTH(layouts); ji++) {
			len = MAX(strlen(layouts[ji].name), strlen(target_layout_name));
			if (strncmp(layouts[ji].name, target_layout_name, len) == 0) {
				selmon->pertag->ltidxs[selmon->pertag->curtag] = &layouts[ji];

				break;
			}
		}

		arrange(selmon, false);
		printstatus();
		return 0;
	}

	for (jk = 0; jk < LENGTH(layouts); jk++) {
		if (strcmp(layouts[jk].name,
				   selmon->pertag->ltidxs[selmon->pertag->curtag]->name) == 0) {
			selmon->pertag->ltidxs[selmon->pertag->curtag] =
				jk == LENGTH(layouts) - 1 ? &layouts[0] : &layouts[jk + 1];
			arrange(selmon, false);
			printstatus();
			return 0;
		}
	}
	return 0;
}

int switch_proportion_preset(const Arg *arg) {
	float target_proportion = 0;

	if (config.scroller_proportion_preset_count == 0) {
		return 0;
	}

	if (selmon->sel) {

		for (int i = 0; i < config.scroller_proportion_preset_count; i++) {
			if (config.scroller_proportion_preset[i] ==
				selmon->sel->scroller_proportion) {
				if (i == config.scroller_proportion_preset_count - 1) {
					target_proportion = config.scroller_proportion_preset[0];
					break;
				} else {
					target_proportion =
						config.scroller_proportion_preset[i + 1];
					break;
				}
			}
		}

		if (target_proportion == 0) {
			target_proportion = config.scroller_proportion_preset[0];
		}

		unsigned int max_client_width =
			selmon->w.width - 2 * scroller_structs - gappih;
		selmon->sel->scroller_proportion = target_proportion;
		selmon->sel->geom.width = max_client_width * target_proportion;
		// resize(selmon->sel, selmon->sel->geom, 0);
		arrange(selmon, false);
	}
	return 0;
}

int tag(const Arg *arg) {
	Client *target_client = selmon->sel;
	tag_client(arg, target_client);
	return 0;
}

int tagmon(const Arg *arg) {
	Monitor *m = NULL;
	Client *c = focustop(selmon);

	if (!c)
		return 0;

	if (arg->i != UNDIR) {
		m = dirtomon(arg->i);
	} else if (arg->v) {
		wl_list_for_each(m, &mons, link) {
			if (!m->wlr_output->enabled) {
				continue;
			}
			if (regex_match(arg->v, m->wlr_output->name)) {
				break;
			}
		}
	} else {
		return 0;
	}

	if (!m || !m->wlr_output->enabled || m == c->mon)
		return 0;

	unsigned int newtags = arg->ui ? c->tags : 0;
	unsigned int target;
	if (c == selmon->sel) {
		selmon->sel = NULL;
	}

	setmon(c, m, newtags, true);
	client_update_oldmonname_record(c, m);

	reset_foreign_tolevel(c);

	c->float_geom.width =
		(int)(c->float_geom.width * c->mon->w.width / selmon->w.width);
	c->float_geom.height =
		(int)(c->float_geom.height * c->mon->w.height / selmon->w.height);
	selmon = c->mon;
	c->float_geom = setclient_coordinate_center(c, c->float_geom, 0, 0);

	// 重新计算居中的坐标
	if (c->isfloating) {
		c->geom = c->float_geom;
		target = get_tags_first_tag(c->tags);
		view(&(Arg){.ui = target}, true);
		focusclient(c, 1);
		resize(c, c->geom, 1);
	} else {
		selmon = c->mon;
		target = get_tags_first_tag(c->tags);
		view(&(Arg){.ui = target}, true);
		focusclient(c, 1);
		arrange(selmon, false);
	}
	if (warpcursor) {
		warp_cursor_to_selmon(c->mon);
	}
	return 0;
}

int tagsilent(const Arg *arg) {
	Client *fc = NULL;
	Client *target_client = NULL;

	if (!selmon || !selmon->sel)
		return 0;

	target_client = selmon->sel;
	target_client->tags = arg->ui & TAGMASK;
	wl_list_for_each(fc, &clients, link) {
		if (fc && fc != target_client && target_client->tags & fc->tags &&
			ISFULLSCREEN(fc) && !target_client->isfloating) {
			clear_fullscreen_flag(fc);
		}
	}
	focusclient(focustop(selmon), 1);
	arrange(target_client->mon, false);
	return 0;
}

int tagtoleft(const Arg *arg) {
	if (selmon->sel != NULL &&
		__builtin_popcount(selmon->tagset[selmon->seltags] & TAGMASK) == 1 &&
		selmon->tagset[selmon->seltags] > 1) {
		tag(&(Arg){.ui = selmon->tagset[selmon->seltags] >> 1, .i = arg->i});
	}
	return 0;
}

int tagtoright(const Arg *arg) {
	if (selmon->sel != NULL &&
		__builtin_popcount(selmon->tagset[selmon->seltags] & TAGMASK) == 1 &&
		selmon->tagset[selmon->seltags] & (TAGMASK >> 1)) {
		tag(&(Arg){.ui = selmon->tagset[selmon->seltags] << 1, .i = arg->i});
	}
	return 0;
}

int toggle_named_scratchpad(const Arg *arg) {
	Client *target_client = NULL;
	char *arg_id = arg->v;
	char *arg_title = arg->v2;

	target_client = get_client_by_id_or_title(arg_id, arg_title);

	if (!target_client && arg->v3) {
		Arg arg_spawn = {.v = arg->v3};
		spawn(&arg_spawn);
		return 0;
	}

	target_client->isnamedscratchpad = 1;

	apply_named_scratchpad(target_client);
	return 0;
}

int toggle_render_border(const Arg *arg) {
	render_border = !render_border;
	arrange(selmon, false);
	return 0;
}

int toggle_scratchpad(const Arg *arg) {
	Client *c = NULL;
	bool hit = false;
	Client *tmp = NULL;

	if (selmon && selmon->isoverview)
		return 0;

	wl_list_for_each_safe(c, tmp, &clients, link) {
		if (!scratchpad_cross_monitor && c->mon != selmon) {
			continue;
		}

		if (single_scratchpad && c->isnamedscratchpad && !c->isminied) {
			set_minimized(c);
			continue;
		}

		if (c->isnamedscratchpad)
			continue;

		if (hit)
			continue;

		hit = switch_scratchpad_client_state(c);
	}
	return 0;
}

int togglefakefullscreen(const Arg *arg) {
	Client *sel = focustop(selmon);
	if (sel)
		setfakefullscreen(sel, !sel->isfakefullscreen);
	return 0;
}

int togglefloating(const Arg *arg) {
	Client *sel = focustop(selmon);

	if (selmon && selmon->isoverview)
		return 0;

	if (!sel)
		return 0;

	if ((sel->isfullscreen || sel->ismaxmizescreen)) {
		sel->isfloating = 1;
	} else {
		sel->isfloating = !sel->isfloating;
	}

	setfloating(sel, sel->isfloating);
	return 0;
}

int togglefullscreen(const Arg *arg) {
	Client *sel = focustop(selmon);
	if (!sel)
		return 0;

	sel->is_scratchpad_show = 0;
	sel->is_in_scratchpad = 0;
	sel->isnamedscratchpad = 0;

	if (sel->isfullscreen)
		setfullscreen(sel, 0);
	else
		setfullscreen(sel, 1);
	return 0;
}

int toggleglobal(const Arg *arg) {
	if (!selmon->sel)
		return 0;
	if (selmon->sel->is_in_scratchpad) {
		selmon->sel->is_in_scratchpad = 0;
		selmon->sel->is_scratchpad_show = 0;
		selmon->sel->isnamedscratchpad = 0;
	}
	selmon->sel->isglobal ^= 1;
	//   selmon->sel->tags =
	//       selmon->sel->isglobal ? TAGMASK : selmon->tagset[selmon->seltags];
	//   focustop(selmon);
	setborder_color(selmon->sel);
	return 0;
}

int togglegaps(const Arg *arg) {
	enablegaps ^= 1;
	arrange(selmon, false);
	return 0;
}

int togglemaxmizescreen(const Arg *arg) {
	Client *sel = focustop(selmon);
	if (!sel)
		return 0;

	sel->is_scratchpad_show = 0;
	sel->is_in_scratchpad = 0;
	sel->isnamedscratchpad = 0;

	if (sel->ismaxmizescreen)
		setmaxmizescreen(sel, 0);
	else
		setmaxmizescreen(sel, 1);

	setborder_color(sel);
	return 0;
}

int toggleoverlay(const Arg *arg) {
	if (!selmon->sel || !selmon->sel->mon || selmon->sel->isfullscreen) {
		return 0;
	}

	selmon->sel->isoverlay ^= 1;

	if (selmon->sel->isoverlay) {
		wlr_scene_node_reparent(&selmon->sel->scene->node, layers[LyrOverlay]);
		wlr_scene_node_raise_to_top(&selmon->sel->scene->node);
	} else if (client_should_overtop(selmon->sel) && selmon->sel->isfloating) {
		wlr_scene_node_reparent(&selmon->sel->scene->node, layers[LyrTop]);
	} else {
		wlr_scene_node_reparent(
			&selmon->sel->scene->node,
			layers[selmon->sel->isfloating ? LyrTop : LyrTile]);
	}
	setborder_color(selmon->sel);
	return 0;
}

int toggletag(const Arg *arg) {
	unsigned int newtags;
	Client *sel = focustop(selmon);
	if (!sel)
		return 0;

	if ((int)arg->ui == INT_MIN && sel->tags != (~0 & TAGMASK)) {
		newtags = ~0 & TAGMASK;
	} else if ((int)arg->ui == INT_MIN && sel->tags == (~0 & TAGMASK)) {
		newtags = 1 << (sel->mon->pertag->curtag - 1);
	} else {
		newtags = sel->tags ^ (arg->ui & TAGMASK);
	}

	if (newtags) {
		sel->tags = newtags;
		focusclient(focustop(selmon), 1);
		arrange(selmon, false);
	}
	printstatus();
	return 0;
}

int toggleview(const Arg *arg) {
	unsigned int newtagset;
	unsigned int target;

	target = arg->ui == 0 ? ~0 & TAGMASK : arg->ui;

	newtagset =
		selmon ? selmon->tagset[selmon->seltags] ^ (target & TAGMASK) : 0;

	if (newtagset) {
		selmon->tagset[selmon->seltags] = newtagset;
		focusclient(focustop(selmon), 1);
		arrange(selmon, false);
	}
	printstatus();
	return 0;
}

int viewtoleft(const Arg *arg) {
	unsigned int target = selmon->tagset[selmon->seltags];

	if (selmon->isoverview || selmon->pertag->curtag == 0) {
		return 0;
	}

	target >>= 1;

	if (target == 0) {
		return 0;
	}

	if (!selmon || (target) == selmon->tagset[selmon->seltags])
		return 0;

	view(&(Arg){.ui = target & TAGMASK, .i = arg->i}, true);
	return 0;
}

int viewtoright(const Arg *arg) {
	if (selmon->isoverview || selmon->pertag->curtag == 0) {
		return 0;
	}
	unsigned int target = selmon->tagset[selmon->seltags];
	target <<= 1;

	if (!selmon || (target) == selmon->tagset[selmon->seltags])
		return 0;
	if (!(target & TAGMASK)) {
		return 0;
	}

	view(&(Arg){.ui = target & TAGMASK, .i = arg->i}, true);
	return 0;
}

int viewtoleft_have_client(const Arg *arg) {
	unsigned int n;
	unsigned int current =
		get_tags_first_tag_num(selmon->tagset[selmon->seltags]);
	bool found = false;

	if (selmon->isoverview) {
		return 0;
	}

	if (current <= 1)
		return 0;

	for (n = current - 1; n >= 1; n--) {
		if (get_tag_status(n, selmon)) {
			found = true;
			break;
		}
	}

	if (found)
		view(&(Arg){.ui = (1 << (n - 1)) & TAGMASK, .i = arg->i}, true);
	return 0;
}

int viewtoright_have_client(const Arg *arg) {
	unsigned int n;
	unsigned int current =
		get_tags_first_tag_num(selmon->tagset[selmon->seltags]);
	bool found = false;

	if (selmon->isoverview) {
		return 0;
	}

	if (current >= LENGTH(tags))
		return 0;

	for (n = current + 1; n <= LENGTH(tags); n++) {
		if (get_tag_status(n, selmon)) {
			found = true;
			break;
		}
	}

	if (found)
		view(&(Arg){.ui = (1 << (n - 1)) & TAGMASK, .i = arg->i}, true);
	return 0;
}

int comboview(const Arg *arg) {
	unsigned int newtags = arg->ui & TAGMASK;

	if (!newtags || !selmon)
		return 0;

	if (tag_combo) {
		selmon->tagset[selmon->seltags] |= newtags;
		focusclient(focustop(selmon), 1);
		arrange(selmon, false);
	} else {
		tag_combo = true;
		view(&(Arg){.ui = newtags}, false);
	}

	printstatus();
	return 0;
}

int zoom(const Arg *arg) {
	Client *c = NULL, *sel = focustop(selmon);

	if (!sel || !selmon ||
		!selmon->pertag->ltidxs[selmon->pertag->curtag]->arrange ||
		sel->isfloating)
		return 0;

	/* Search for the first tiled window that is not sel, marking sel as
	 * NULL if we pass it along the way */
	wl_list_for_each(c, &clients,
					 link) if (VISIBLEON(c, selmon) && !c->isfloating) {
		if (c != sel)
			break;
		sel = NULL;
	}

	/* Return if no other tiled window was found */
	if (&c->link == &clients)
		return 0;

	/* If we passed sel, move c to the front; otherwise, move sel to the
	 * front */
	if (!sel)
		sel = c;
	wl_list_remove(&sel->link);
	wl_list_insert(&clients, &sel->link);

	focusclient(sel, 1);
	arrange(selmon, false);
	return 0;
}

int setoption(const Arg *arg) {
	parse_option(&config, arg->v, arg->v2);
	override_config();
	reset_option();
	return 0;
}

int minimized(const Arg *arg) {

	if (selmon && selmon->isoverview)
		return 0;

	if (selmon->sel && !selmon->sel->isminied) {
		set_minimized(selmon->sel);
	}
	return 0;
}

int toggleoverview(const Arg *arg) {
	Client *c = NULL;

	if (selmon->isoverview && ov_tab_mode && arg->i != -1 && selmon->sel) {
		focusstack(&(Arg){.i = 1});
		return 0;
	}

	selmon->isoverview ^= 1;
	unsigned int target;
	unsigned int visible_client_number = 0;

	if (selmon->isoverview) {
		wl_list_for_each(c, &clients,
						 link) if (c && c->mon == selmon &&
								   !client_is_unmanaged(c) &&
								   !client_should_ignore_focus(c) &&
								   !c->isminied && !c->isunglobal) {
			visible_client_number++;
		}
		if (visible_client_number > 0) {
			target = ~0 & TAGMASK;
		} else {
			selmon->isoverview ^= 1;
			return 0;
		}
	} else if (!selmon->isoverview && selmon->sel) {
		target = get_tags_first_tag(selmon->sel->tags);
	} else if (!selmon->isoverview && !selmon->sel) {
		target = (1 << (selmon->pertag->prevtag - 1));
		view(&(Arg){.ui = target}, false);
		refresh_monitors_workspaces_status(selmon);
		return 0;
	}

	// 正常视图到overview,退出所有窗口的浮动和全屏状态参与平铺,
	// overview到正常视图,还原之前退出的浮动和全屏窗口状态
	if (selmon->isoverview) {
		wl_list_for_each(c, &clients, link) {
			if (c && c->mon == selmon && !client_is_unmanaged(c) &&
				!client_should_ignore_focus(c) && !c->isunglobal)
				overview_backup(c);
		}
	} else {
		wl_list_for_each(c, &clients, link) {
			if (c && c->mon == selmon && !c->iskilling &&
				!client_is_unmanaged(c) && !c->isunglobal &&
				!client_should_ignore_focus(c) && client_surface(c)->mapped)
				overview_restore(c, &(Arg){.ui = target});
		}
	}

	view(&(Arg){.ui = target}, false);

	if (ov_tab_mode && selmon->isoverview && selmon->sel) {
		focusstack(&(Arg){.i = 1});
	}

	refresh_monitors_workspaces_status(selmon);
	return 0;
}