29 lines
642 B
JavaScript
29 lines
642 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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