textarea-scrollbar-sizing-002.html (1888B)
1 <!DOCTYPE html> 2 <link rel="help" href="https://html.spec.whatwg.org/C/#the-textarea-element-2"> 3 <title>Test textarea width and height accounting for scrollbars, with vertical writing mode</title> 4 <meta name="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com"> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <body> 8 <style>textarea { writing-mode: vertical-lr }</style> 9 <textarea id="rows1" rows="1"></textarea> 10 <textarea id="rows1Hidden" rows="1" style="overflow-y: hidden"></textarea> 11 <textarea id="rows1Scroll" rows="1" style="overflow-y: scroll"></textarea> 12 <textarea id="cols3" cols="3"></textarea> 13 <textarea id="cols3Hidden" cols="3" style="overflow-x: hidden"></textarea> 14 <textarea id="cols3Scroll" cols="3" style="overflow-x: scroll"></textarea> 15 <div id="scrollableDiv" style="overflow:scroll"></div> 16 17 <script> 18 const scrollbarsHaveThickness = (scrollableDiv.offsetHeight != 0); 19 test(() => { 20 assert_equals(rows1.offsetHeight, rows1Hidden.offsetHeight); 21 assert_equals(rows1.offsetWidth, rows1Hidden.offsetWidth); 22 }, 'rows=1 doesnt include scrollbar thickness'); 23 24 test(() => { 25 assert_equals(rows1.offsetHeight, rows1Scroll.offsetHeight); 26 if (scrollbarsHaveThickness) { 27 assert_less_than(rows1.offsetWidth, rows1Scroll.offsetWidth); 28 } else { 29 assert_equals(rows1.offsetWidth, rows1Scroll.offsetWidth); 30 } 31 }, 'rows=1 overflow scroll includes scrollbar thickness'); 32 33 test(() => { 34 assert_equals(cols3.offsetHeight, cols3Scroll.offsetHeight); 35 if (scrollbarsHaveThickness) { 36 assert_greater_than(cols3.offsetHeight, cols3Hidden.offsetHeight); 37 } else { 38 assert_equals(cols3.offsetHeight, cols3Hidden.offsetHeight); 39 } 40 assert_equals(cols3.offsetWidth, cols3Scroll.offsetWidth); 41 assert_equals(cols3.offsetWidth, cols3Hidden.offsetWidth); 42 }, 'cols=3 includes scrollbar thickness'); 43 </script>