29 lines
627 B
JavaScript
29 lines
627 B
JavaScript
export default function getRule(rules) {
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for (let i = 0; i < rules.length; i++) {
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rules[i] = rules[i].toLowerCase();
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}
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let result = null;
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let find = Array.prototype.find;
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find.call(document.styleSheets, (styleSheet) => {
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result = find.call(styleSheet.cssRules, (cssRule) => {
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let found = false;
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if (cssRule instanceof window.CSSStyleRule) {
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for (let i = 0; i < rules.length; i++) {
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if (cssRule.selectorText.toLowerCase() === rules[i]) {
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found = true;
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}
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}
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}
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return found;
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});
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return result != null;
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});
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return result;
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}
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