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https://github.com/RGBCube/serenity
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This method asynchronously replaces the content of the given stylesheet with the content passed to it. An exception is thrown if this method is used by a stylesheet not created with the `CSSStyleSheet()` constructor.
50 lines
1.4 KiB
HTML
50 lines
1.4 KiB
HTML
<!DOCTYPE html>
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<style>
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.test {
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font-size: 12px;
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}
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</style>
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<script src="../include.js"></script>
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<script>
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asyncTest(async done => {
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const newStyle = `
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.test {
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font-size: 14px;
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}
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.test2 {
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font-size: 16px;
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}`;
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const newStyle2 = `.test {
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padding: 100px;
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}`;
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const nonConstructedSheet = document.styleSheets[0];
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try {
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await nonConstructedSheet.replace(newStyle);
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println("FAIL");
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} catch (e) {
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println(`Exception thrown when calling replace() on non-constructed stylesheet: ${e.name}`);
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}
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const sheet = new CSSStyleSheet();
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const cssRules = sheet.cssRules;
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await sheet.replace(newStyle);
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println(`Number of CSS rules after replace(): ${sheet.cssRules.length}`);
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for (const rule of sheet.cssRules) {
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println(`Rule: ${rule.cssText}`);
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}
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const cssRulesAfterReplace = sheet.cssRules;
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println(`cssRules returns the same object before and after replace(): ${cssRules === cssRulesAfterReplace}`);
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const importRule = `@import url("test.css");`;
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await sheet.replace(`${newStyle2} ${importRule}`);
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println(`@import rule should be not appear below:`);
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for (const rule of sheet.cssRules) {
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println(`Rule: ${rule.cssText}`);
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}
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done();
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});
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</script>
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