36 lines
1016 B
TypeScript
36 lines
1016 B
TypeScript
export function isNotGrey(color: string) {
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// eslint-disable-next-line no-useless-escape
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const match = (color || '').match(/rgba?\((\d*), (\d*), (\d*)(, [\d.]*)?\)/);
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if (match && match[1] && match[2] && match[3]) {
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return !(match[1] === match[2] && match[2] === match[3]);
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}
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return true;
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}
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export function isValidWaveColor(color: string) {
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return (
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color &&
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color !== '#fff' &&
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color !== '#ffffff' &&
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color !== 'rgb(255, 255, 255)' &&
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color !== 'rgba(255, 255, 255, 1)' &&
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isNotGrey(color) &&
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!/rgba\((?:\d*, ){3}0\)/.test(color) && // any transparent rgba color
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color !== 'transparent'
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);
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}
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export function getTargetWaveColor(node: HTMLElement) {
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const { borderTopColor, borderColor, backgroundColor } = getComputedStyle(node);
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if (isValidWaveColor(borderTopColor)) {
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return borderTopColor;
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}
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if (isValidWaveColor(borderColor)) {
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return borderColor;
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}
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if (isValidWaveColor(backgroundColor)) {
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return backgroundColor;
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}
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return null;
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}
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