examples/advanced/isomorphic/app.js
import xs from 'xstream';
import {div, ul, li, a, section, h1, p} from '@cycle/dom';
function renderMenu() {
return (
ul([
li([ a('.link', {attrs: {href: '/'}}, 'Home') ]),
li([ a('.link', {attrs: {href: '/about'}}, 'About') ]),
])
);
}
function renderHomePage() {
return (
section('.home', [
h1('The homepage'),
p('Welcome to our spectacular web page with nothing special here.'),
renderMenu(),
])
);
}
function renderAboutPage() {
return (
section('.about', [
h1('Read more about us'),
p('This is the page where we describe ourselves.'),
p('Contact us'),
renderMenu(),
])
);
}
export default function app(sources) {
const click$ = sources.DOM.select('.link').events('click');
const preventedEvent$ = click$;
const contextFromClick$ = click$
.map(ev => ({route: ev.currentTarget.attributes.href.value}));
const context$ = xs.merge(sources.context, contextFromClick$);
const vdom$ = context$
.map(({route}) => {
if (typeof window !== 'undefined') {
window.history.pushState(null, '', route);
}
switch (route) {
case '/': return renderHomePage();
case '/about': return renderAboutPage();
default: return div(`Unknown page ${route}`)
}
});
return {
DOM: vdom$,
PreventDefault: preventedEvent$
};
}