svelte-kit-vice/src/uix/soma/components/toolbar/toolbar-provider.svelte.test.ts

// @vitest-environment jsdom

import { tick } from 'svelte';
import { afterEach, describe, expect, it, vi } from 'vitest';

import { createActiveDom } from '$adom';
import { state } from '$libs/reactive';
import type { Morfo } from '$uix/morfo';
import { Soma } from '$soma/core/soma.svelte';
import { createSomaRuntime, type SomaRuntimeSources } from '$soma/runtime.svelte';

import {
	ToolbarButtonProvider,
	ToolbarGroupItemProvider,
	ToolbarGroupProvider,
	ToolbarLinkProvider,
	ToolbarProvider,
	ToolbarSeparatorProvider
} from './toolbar-provider.svelte';

function withEffectRoot<T>(fn: () => T): { result: T; cleanup: () => void } {
	let result!: T;
	const cleanup = $effect.root(() => {
		result = fn();
	});
	return { result, cleanup };
}

function installSomaHarness() {
	const dom = createActiveDom();
	const soma = {
		dom,
		runtime: (morfo: Morfo, sources: Omit<SomaRuntimeSources, 'dom' | 'eventEngine'>) =>
			createSomaRuntime(morfo, {
				dom,
				translate: (key) => key,
				...sources
			})
	} as unknown as Soma;

	vi.spyOn(Soma, 'require').mockReturnValue(soma);
	vi.spyOn(ToolbarProvider.ctx, 'set').mockImplementation((value) => value);
	vi.spyOn(ToolbarGroupProvider.ctx, 'set').mockImplementation((value) => value);

	return { dom };
}

function toolbarOpts(root: HTMLElement) {
	return {
		id: state('toolbar-root'),
		ref: state<HTMLElement | null>(root),
		orientation: state<'horizontal' | 'vertical'>('horizontal'),
		loop: state(true),
		dir: state<'ltr' | 'rtl'>('ltr')
	};
}

function keyEvent(key: string) {
	return {
		key,
		preventDefault: vi.fn()
	};
}

describe('ToolbarProvider', () => {
	afterEach(() => {
		vi.restoreAllMocks();
		document.body.innerHTML = '';
	});

	it('roves tabindex and focus across buttons and links', async () => {
		const { dom } = installSomaHarness();
		const focusSpy = vi.spyOn(dom, 'focus');
		const root = document.createElement('div');
		root.setAttribute('data-toolbar', '');
		const firstEl = document.createElement('button');
		firstEl.setAttribute('data-toolbar-button', '');
		const disabledEl = document.createElement('button');
		disabledEl.setAttribute('data-toolbar-button', '');
		disabledEl.setAttribute('disabled', '');
		const linkEl = document.createElement('a');
		linkEl.setAttribute('data-toolbar-link', '');
		root.append(firstEl, disabledEl, linkEl);
		document.body.appendChild(root);
		const opts = toolbarOpts(root);

		const { result, cleanup } = withEffectRoot(() => {
			const provider = ToolbarProvider.create(opts);
			vi.spyOn(ToolbarProvider, 'require').mockReturnValue(provider);
			const first = ToolbarButtonProvider.create({
				id: state('toolbar-first'),
				ref: state<HTMLElement | null>(firstEl),
				disabled: state(false)
			});
			const disabled = ToolbarButtonProvider.create({
				id: state('toolbar-disabled'),
				ref: state<HTMLElement | null>(disabledEl),
				disabled: state(true)
			});
			const link = ToolbarLinkProvider.create({
				id: state('toolbar-link'),
				ref: state<HTMLElement | null>(linkEl)
			});
			return { provider, first, disabled, link };
		});

		expect(result.provider.props).toMatchObject({
			id: 'toolbar-root',
			'data-toolbar': '',
			dir: 'ltr'
		});
		expect(result.first.props.tabindex).toBe(0);
		expect(result.disabled.props.disabled).toBe(true);
		expect(result.link.props.tabindex).toBe(-1);

		firstEl.focus();
		const next = keyEvent('ArrowRight');
		result.provider.onkeydown(next as never);
		expect(next.preventDefault).toHaveBeenCalledOnce();
		expect(focusSpy).toHaveBeenCalledWith(linkEl);
		expect(result.provider.lastFocusedElement).toBe(linkEl);
		expect(result.first.props.tabindex).toBe(-1);
		expect(result.link.props.tabindex).toBe(0);

		const home = keyEvent('Home');
		linkEl.focus();
		result.provider.onkeydown(home as never);
		expect(home.preventDefault).toHaveBeenCalledOnce();
		expect(focusSpy).toHaveBeenLastCalledWith(firstEl);

		await tick();
		expect(root.getAttribute('role')).toBe('toolbar');
		expect(root.getAttribute('data-orientation')).toBe('horizontal');
		expect(disabledEl.getAttribute('data-disabled')).toBe('');

		cleanup();
		dom.dispose();
	});

	it('updates last focused element from focusin', () => {
		const { dom } = installSomaHarness();
		const root = document.createElement('div');
		const buttonEl = document.createElement('button');
		document.body.append(root, buttonEl);
		const opts = toolbarOpts(root);

		const { result: provider, cleanup } = withEffectRoot(() => ToolbarProvider.create(opts));

		provider.onfocusin({ target: buttonEl } as unknown as FocusEvent);
		expect(provider.lastFocusedElement).toBe(buttonEl);

		cleanup();
		dom.dispose();
	});

	it('toggles group items and projects separator orientation', async () => {
		const { dom } = installSomaHarness();
		const root = document.createElement('div');
		root.setAttribute('data-toolbar', '');
		const groupEl = document.createElement('div');
		const boldEl = document.createElement('button');
		boldEl.setAttribute('data-toolbar-group-item', '');
		const italicEl = document.createElement('button');
		italicEl.setAttribute('data-toolbar-group-item', '');
		const separatorEl = document.createElement('div');
		root.append(groupEl, boldEl, italicEl, separatorEl);
		document.body.appendChild(root);
		const opts = toolbarOpts(root);
		const value = state<string[]>([]);
		const groupType = state<'single' | 'multiple'>('single');
		const groupDisabled = state(false);

		const { result, cleanup } = withEffectRoot(() => {
			const provider = ToolbarProvider.create(opts);
			vi.spyOn(ToolbarProvider, 'require').mockReturnValue(provider);
			const group = ToolbarGroupProvider.create({
				id: state('toolbar-group'),
				ref: state<HTMLElement | null>(groupEl),
				value,
				type: groupType,
				disabled: groupDisabled
			});
			vi.spyOn(ToolbarGroupProvider, 'require').mockReturnValue(group);
			const bold = ToolbarGroupItemProvider.create({
				id: state('toolbar-bold'),
				ref: state<HTMLElement | null>(boldEl),
				value: state('bold'),
				disabled: state(false)
			});
			const italic = ToolbarGroupItemProvider.create({
				id: state('toolbar-italic'),
				ref: state<HTMLElement | null>(italicEl),
				value: state('italic'),
				disabled: state(false)
			});
			const separator = ToolbarSeparatorProvider.create({
				id: state('toolbar-separator'),
				ref: state<HTMLElement | null>(separatorEl)
			});
			return { group, bold, italic, separator };
		});

		result.bold.onclick({ currentTarget: boldEl } as never);
		expect(value.current).toEqual(['bold']);
		result.italic.onclick({ currentTarget: italicEl } as never);
		expect(value.current).toEqual(['italic']);

		groupType.current = 'multiple';
		result.bold.onclick({ currentTarget: boldEl } as never);
		expect(value.current).toEqual(['italic', 'bold']);
		result.italic.onclick({ currentTarget: italicEl } as never);
		expect(value.current).toEqual(['bold']);

		await tick();
		expect(boldEl.getAttribute('data-state')).toBe('on');
		expect(italicEl.getAttribute('data-state')).toBe('off');
		expect(separatorEl.getAttribute('role')).toBe('separator');
		expect(separatorEl.getAttribute('aria-orientation')).toBe('vertical');

		groupDisabled.current = true;
		result.bold.onclick({ currentTarget: boldEl } as never);
		expect(value.current).toEqual(['bold']);
		expect(result.bold.props.disabled).toBe(true);

		cleanup();
		dom.dispose();
	});
});