shoelace/src/components/spinner/spinner.styles.ts

71 wiersze
1.6 KiB
TypeScript

import { css } from 'lit';
import componentStyles from '../../styles/component.styles.js';
// Note on flex:none on the :host
// Resizing a spinner element using anything but font-size will break the animation
// mostly because the animation uses em units. Therefore, if a spinner is used in a flex container,
// without flex:none applied, the spinner can grow/shrink and break the animation
// flex:none hopes to prevent this by always having the spinner sized according to its actual dimensions
export default css`
${componentStyles}
:host {
--track-width: 2px;
--track-color: rgb(128 128 128 / 25%);
--indicator-color: var(--sl-color-primary-600);
--speed: 2s;
display: inline-flex;
width: 1em;
height: 1em;
flex: none;
}
.spinner {
flex: 1 1 auto;
height: 100%;
width: 100%;
}
.spinner__track,
.spinner__indicator {
fill: none;
stroke-width: var(--track-width);
r: calc(0.5em - var(--track-width) / 2);
cx: 0.5em;
cy: 0.5em;
transform-origin: 50% 50%;
}
.spinner__track {
stroke: var(--track-color);
transform-origin: 0% 0%;
}
.spinner__indicator {
stroke: var(--indicator-color);
stroke-linecap: round;
stroke-dasharray: 150% 75%;
animation: spin var(--speed) linear infinite;
}
@keyframes spin {
0% {
transform: rotate(0deg);
stroke-dasharray: 0.05em, 3em;
}
50% {
transform: rotate(450deg);
stroke-dasharray: 1.375em, 1.375em;
}
100% {
transform: rotate(1080deg);
stroke-dasharray: 0.05em, 3em;
}
}
`;