examples/web-components-kitchen-sink/src/components/sb-header.ts
import { css, html, LitElement } from 'lit';
import { customElement } from 'lit/decorators.js';
import './sb-button';
/**
* @attr {Object} user - User of the app
*
* @event {CustomEvent} sb-header:createAccount - Event send when user clicks on create account button
* @event {CustomEvent} sb-header:login - Event send when user clicks on login button
* @event {CustomEvent} sb-header:logout - Event send when user clicks on logout button
*
* @summary This is a simple Storybook Header
*
* @tag sb-header
*/
@customElement('sb-header')
export class SbHeader extends LitElement {
static get styles() {
return css`
.wrapper {
font-family: 'Nunito Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
border-bottom: 1px solid rgba(0, 0, 0, 0.1);
padding: 15px 20px;
display: flex;
align-items: center;
justify-content: space-between;
}
svg {
display: inline-block;
vertical-align: top;
}
h1 {
font-weight: 900;
font-size: 20px;
line-height: 1;
margin: 6px 0 6px 10px;
display: inline-block;
vertical-align: top;
}
button + button {
margin-left: 10px;
}
`;
}
// Currently TS decorators are not reflected so we have to use static `properties` function
// https://github.com/Polymer/lit-html/issues/1476
static get properties() {
return {
user: { type: Object, reflect: true },
};
}
user?: {};
private dispatchCustomEvent(eventName: string) {
const options = {
bubbles: true,
composed: true,
};
this.dispatchEvent(new CustomEvent(`sb-header:${eventName}`, options));
}
render() {
return html`
<header>
<div class="wrapper">
<div>
<svg width="32" height="32" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg">
<g fill="none" fillRule="evenodd">
<path
d="M10 0h12a10 10 0 0110 10v12a10 10 0 01-10 10H10A10 10 0 010 22V10A10 10 0 0110 0z"
fill="#FFF"
/>
<path
d="M5.3 10.6l10.4 6v11.1l-10.4-6v-11zm11.4-6.2l9.7 5.5-9.7 5.6V4.4z"
fill="#555AB9"
/>
<path
d="M27.2 10.6v11.2l-10.5 6V16.5l10.5-6zM15.7 4.4v11L6 10l9.7-5.5z"
fill="#91BAF8"
/>
</g>
</svg>
<h1>Acme</h1>
</div>
<div>
${this.logInOutButton()}
<sb-button
size="small"
@sb-button:click="${() => this.dispatchCustomEvent('createAccount')}"
label="Sign up"
>
</sb-button>
</div>
</div>
</header>
`;
}
private logInOutButton() {
return this.user
? html`<sb-button
size="small"
@sb-button:click="${() => this.dispatchCustomEvent('logout')}"
label="Log out"
></sb-button>`
: html`<sb-button
size="small"
@sb-button:click="${() => this.dispatchCustomEvent('login')}"
label="Log in"
></sb-button>`;
}
}
declare global {
interface HTMLElementTagNameMap {
'sb-header': SbHeader;
}
}