scrollIntoView-horizontal-partially-visible.html (1677B)
1 <!doctype html> 2 <title>CSSOM View - scrollIntoView scrolls partially-visible element in both inline and block directions.</title> 3 <meta charset="utf-8"> 4 <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> 5 <link rel="author" title="Mozilla" href="https://mozilla.org"> 6 <link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview"> 7 <link rel="help" href="https://bugs.webkit.org/show_bug.cgi?id=203497"> 8 <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=916631"> 9 <script src="/resources/testharness.js"></script> 10 <script src="/resources/testharnessreport.js"></script> 11 <style> 12 #scroller { 13 width: 200px; 14 height: 200px; 15 padding-top: 200px; 16 padding-left: 200px; 17 background: purple; 18 overflow: hidden; 19 } 20 #child { 21 width: 400px; 22 height: 400px; 23 background: green; 24 } 25 </style> 26 <div id="scroller"> 27 <div id="child"></div> 28 </div> 29 <script> 30 test(function() { 31 let scroller = document.getElementById("scroller"); 32 let child = document.getElementById("child"); 33 34 scroller.scrollTop = 0; 35 scroller.scrollLeft = 0; 36 37 assert_equals(scroller.scrollTop, 0, "Precondition"); 38 assert_equals(scroller.scrollLeft, 0, "Precondition"); 39 assert_not_equals(scroller.scrollTopMax, 0, "Precondition") 40 assert_not_equals(scroller.scrollLeftMax, 0, "Precondition") 41 42 child.scrollIntoView(); 43 44 assert_equals(scroller.scrollTop, 200, "Should have scrolled in the block direction"); 45 assert_equals(scroller.scrollLeft, 200, "Should have scrolled in the inline direction"); 46 }, "scrollIntoView scrolls partially-visible child in both axes"); 47 </script>