Files
subtle-storm/app/javascript/elements/site_sidebar.js
T

115 lines
2.8 KiB
JavaScript

import {html, css, LitElement, classMap} from 'lit'
const openIcon = RAILS_ASSET_URL('/mingcute/hamburger_line.svg')
const closeIcon = RAILS_ASSET_URL('/mingcute/close_fill.svg')
export class SiteSidebar extends LitElement {
static styles = css`
:host {
--padding: 0.25rem;
--_button-size: var(--button-size, 2rem);
--_button-offset: var(--button-offset, 2px);
flex-basis: calc(var(--_button-size) + var(--_button-offset));
}
aside {
position: fixed;
left: 0;
top: 0;
height: 100%;
width: min(15em, 30%);
background: var(--background);
color: var(--color);
box-shadow: calc(var(--_button-size) / 2 + var(--_button-offset)) 0 var(--background);
transform: translateX(-100%);
transition: transform 0.2s ease;
box-sizing: border-box;
padding-block: var(--padding);
isolation: isolate;
z-index: 99;
&.open {
transform: none;
}
}
.padding {
padding-inline: var(--padding);
}
.toggle-button-container {
background-color: var(--pico-muted-border-color);
border: 3px solid var(--pico-muted-color);
border-radius: 1000px;
corner-shape: squircle;
position: absolute;
left: calc(100% + var(--_button-offset));
/* Mostly to fix the oversized hamburger */
scale: 60%;
transform-origin: 0 50%;
}
.bg {
transition: opacity 0.2s ease;
transition-behavior: allow-discrete;
background: black;
opacity: 0.6;
position: fixed;
inset: 0;
@starting-style {
opacity: 0;
}
}
`
static properties = {
open: {type: Boolean}
}
constructor() {
super()
this.open = false
}
render() {
const classes = {
open: this.open
}
return html`
<aside class="${classMap(classes)}">
<div class="toggle-button-container">
<slot name="toggle-button" @click="${this._toggleOpen}"></slot>
</div>
<div class="padding">
<slot></slot>
</div>
</aside>
${this._bg()}
`
}
_bg() {
if(!this.open) return null
return html`<div class="bg" @click="${this._toggleOpen}"></div>`
}
_toggleOpen(event) {
// let button = event.target.closest('button')
let nodes = this.shadowRoot.querySelector('slot[name="toggle-button"]').assignedNodes()
let button = nodes.find(e => e.nodeName == 'BUTTON')
this.open = !this.open
button.classList.toggle('is-active', this.open)
button.setAttribute('aria-pressed', this.open.toString())
}
}