unicode-bidi-ua-rules.html (5440B)
1 <!DOCTYPE html> 2 <title>unicode-bidi UA stylesheet rules</title> 3 <link rel="author" href="masonf@chromium.org"> 4 <link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#bidi-rendering"> 5 <script src=/resources/testharness.js></script> 6 <script src=/resources/testharnessreport.js></script> 7 <script src='../../resources/common.js'></script> 8 9 <body> 10 <script> 11 function getUnicodeBidi(el) { 12 return window.getComputedStyle(el, "").unicodeBidi; 13 } 14 15 // These elements should have `unicode-bidi: isolate` in the UA stylesheet: 16 const isolateElements = ['address', 'blockquote', 'center', 'div', 'figure', 17 'figcaption', 'footer', 'form', 'header', 'hr', 'legend', 'listing', 18 'main', 'p', 'plaintext', 'pre', 'summary', 'xmp', 'article', 'aside', 19 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'hgroup', 'nav', 'section', 'search', 20 'table', 'caption', 'colgroup', 'col', 'thead', 'tbody', 'tfoot', 'tr', 21 'td', 'th', 'dir', 'dd', 'dl', 'dt', 'menu', 'ol', 'ul', 'li', 'bdi', 22 'output']; 23 const allButSeparateTests = HTML5_ELEMENTS.filter(el => (!['bdo','input','textarea','pre'].includes(el))); 24 for(let tagname of allButSeparateTests) { 25 test((t) => { 26 const element = document.createElement(tagname); 27 t.add_cleanup(() => element.remove()); 28 document.body.appendChild(element); 29 const expectation = isolateElements.includes(tagname) ? 'isolate' : 'normal'; 30 assert_equals(getUnicodeBidi(element),expectation); 31 32 element.setAttribute('dir','ltr'); 33 assert_equals(getUnicodeBidi(element),'isolate','with dir=ltr'); 34 element.setAttribute('dir','LtR'); 35 assert_equals(getUnicodeBidi(element),'isolate','with dir=LtR (case insensitive)'); 36 element.setAttribute('dir','rtl'); 37 assert_equals(getUnicodeBidi(element),'isolate','with dir=rtl'); 38 element.setAttribute('dir','auto'); 39 assert_equals(getUnicodeBidi(element),'isolate','with dir=auto'); 40 element.setAttribute('dir','INVALID'); 41 assert_equals(getUnicodeBidi(element),expectation,'invalid dir value goes back to normal defaults'); 42 },`UA stylesheet rule for unicode-bidi, for <${tagname}>`); 43 } 44 45 test((t) => { 46 const element = document.createElement('bdo'); 47 t.add_cleanup(() => element.remove()); 48 document.body.appendChild(element); 49 assert_equals(getUnicodeBidi(element),'isolate-override'); 50 element.setAttribute('dir','ltr'); 51 assert_equals(getUnicodeBidi(element),'isolate-override','with dir=ltr'); 52 element.setAttribute('dir','LtR'); 53 assert_equals(getUnicodeBidi(element),'isolate-override','with dir=LtR (case insensitive)'); 54 element.setAttribute('dir','rtl'); 55 assert_equals(getUnicodeBidi(element),'isolate-override','with dir=rtl'); 56 element.setAttribute('dir','auto'); 57 assert_equals(getUnicodeBidi(element),'isolate-override','with dir=auto'); 58 element.setAttribute('dir','INVALID'); 59 assert_equals(getUnicodeBidi(element),'isolate-override','invalid dir value'); 60 },`UA stylesheet rule for unicode-bidi, for <bdo>`); 61 62 const shouldBePlaintext = ['search','tel','url','email']; 63 for(let type of HTML5_INPUT_TYPES) { 64 test((t) => { 65 const element = document.createElement('input'); 66 t.add_cleanup(() => element.remove()); 67 element.type = type; 68 document.body.appendChild(element); 69 const autoExpectation = shouldBePlaintext.includes(type) ? 'plaintext' : 'isolate'; 70 assert_equals(getUnicodeBidi(element),'normal'); 71 element.setAttribute('dir','ltr'); 72 assert_equals(getUnicodeBidi(element),'isolate','with dir=ltr'); 73 element.setAttribute('dir','LtR'); 74 assert_equals(getUnicodeBidi(element),'isolate','with dir=LtR (case insensitive)'); 75 element.setAttribute('dir','rtl'); 76 assert_equals(getUnicodeBidi(element),'isolate','with dir=rtl'); 77 element.setAttribute('dir','auto'); 78 assert_equals(getUnicodeBidi(element),autoExpectation,'with dir=auto'); 79 element.setAttribute('dir','AuTo'); 80 assert_equals(getUnicodeBidi(element),autoExpectation,'with dir=auto (case insensitive)'); 81 element.setAttribute('dir','INVALID'); 82 assert_equals(getUnicodeBidi(element),'normal','invalid dir value'); 83 },`UA stylesheet rule for unicode-bidi, for <input type=${type}>`); 84 } 85 86 for(let tagname of ['textarea','pre']) { 87 test((t) => { 88 const element = document.createElement(tagname); 89 t.add_cleanup(() => element.remove()); 90 document.body.appendChild(element); 91 const expectation = tagname === 'textarea' ? 'normal' : 'isolate'; 92 assert_equals(getUnicodeBidi(element),expectation); 93 element.setAttribute('dir','ltr'); 94 assert_equals(getUnicodeBidi(element),'isolate','with dir=ltr'); 95 element.setAttribute('dir','LtR'); 96 assert_equals(getUnicodeBidi(element),'isolate','with dir=LtR (case insensitive)'); 97 element.setAttribute('dir','rtl'); 98 assert_equals(getUnicodeBidi(element),'isolate','with dir=rtl'); 99 element.setAttribute('dir','auto'); 100 assert_equals(getUnicodeBidi(element),'plaintext','with dir=auto'); 101 element.setAttribute('dir','AuTo'); 102 assert_equals(getUnicodeBidi(element),'plaintext','with dir=auto (case insensitive)'); 103 element.setAttribute('dir','INVALID'); 104 assert_equals(getUnicodeBidi(element),expectation,'invalid dir value'); 105 },`UA stylesheet rule for unicode-bidi, for <${tagname}>`); 106 } 107 </script>