37 lines
1.7 KiB
HTML
37 lines
1.7 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>Link Element StyleSheet's title attribute</title>
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<link rel="author" title="Takuya Kurimoto" href="mailto:takuya004869@gmail.com">
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<link rel="help" href="https://drafts.csswg.org/cssom/#dom-stylesheet-title">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<link id="set_title" rel="stylesheet" href="null.css" type="text/css">
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<link id="set_title" rel="stylesheet" title="" href="empty.css" type="text/css">
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<link id="set_title" rel="stylesheet" title="title" href="set.css" type="text/css">
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<link id="change_title_to_empty_string" rel="stylesheet" title="title" href="set.css" type="text/css">
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<script>
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test(function() {
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const sheetCount = 3;
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const sheets = Array.from(document.styleSheets).filter(sheet => sheet.ownerNode.id == 'set_title');
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const linkStylesheets = Array.from(document.querySelectorAll('#set_title'));
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assert_equals(sheets.length, sheetCount);
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assert_equals(linkStylesheets.length, sheetCount);
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for (let i = 0; i < sheets.length; ++i) {
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let titleAttr = linkStylesheets[i].getAttribute("title");
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if (titleAttr === null || titleAttr === "")
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assert_equals(sheets[i].title, null, "Empty title returns null");
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else
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assert_equals(sheets[i].title, titleAttr, "Selected title is properly reflected");
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}
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}, "StyleSheet.title");
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test(() => {
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const linkStylesheet = document.getElementById('change_title_to_empty_string');
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linkStylesheet.setAttribute("title", "")
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const sheet = Array.from(document.styleSheets).find(sheet => sheet.ownerNode.id == 'change_title_to_empty_string');
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assert_equals(sheet.title, null);
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}, "Executing setAttribute('title', '') results in the title being set to null");
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</script>
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