all files / addon/components/ polaris-spinner.js

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import Component from '@ember/component';
import layout from '../templates/components/polaris-spinner';
import { computed } from '@ember/object';
import { classify } from '@ember/string';
 
const allowedColors = [
  'white',
  'teal',
  'inkLightest'
];
const colorsForLargeSpinner = [
  'teal',
  'inkLightest'
];
const defaultColor = 'teal';
 
const allowedSizes = [
  'small',
  'large'
];
const defaultSize = 'large';
 
export default Component.extend({
  tagName: '',
 
  layout,
 
  /**
   * Color of spinner
   *
   * @property color
   * @public
   * @type {String}
   * @default teal
   */
  color: defaultColor,
 
  /**
   * Size of spinner
   *
   * @property size
   * @public
   * @type {String}
   * @default large
   */
  size: defaultSize,
 
  /**
   * Accessible label for the spinner
   *
   * @property accessibilityLabel
   * @public
   * @type {String}
   * @default null
   */
  accessibilityLabel: null,
 
  /**
   * Internal properties.
   */
  normalizedColor: computed('color', function() {
    let color = this.get('color');
    return allowedColors.includes(color) ? color : defaultColor;
  }).readOnly(),
 
  normalizedSize: computed('size', 'normalizedColor', function() {
    let size = this.get('size');
    if (allowedSizes.includes(size)) {
      return colorsForLargeSpinner.includes(this.get('normalizedColor')) ?
        size :
        'small';
    }
 
    return defaultSize;
  }).readOnly(),
 
  spinnerSource: computed('normalizedSize', function() {
    return `polaris/spinner-${ this.get('normalizedSize') }`;
  }).readOnly(),
 
  spinnerClass: computed('normalizedSize', function() {
    return [
      'Polaris-Spinner',
      `Polaris-Spinner--color${ classify(this.get('normalizedColor')) }`,
      `Polaris-Spinner--size${ classify(this.get('normalizedSize')) }`
    ].join(' ');
  }).readOnly(),
});