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AX: Presentational role on SVG elements is trumped by child 'title' and 'desc' elements https://bugs.webkit.org/show_bug.cgi?id=156519 Reviewed by Chris Fleizach. Source/WebCore: Override the presentational role on SVG elements which have a child 'title' or 'desc' element. As a result of this change, AccessibilitySVGRoot objects would be exposed with an AccessibilityRole of UnknownRole. Therefore map included AccessibilitySVGRoot objects to GroupRole as per the SVG Accessibility API Mapping specification. Also use indexOfBestMatchingLanguageInList() to identify which child 'title' or 'desc' element is the best match for the parent element. New Test: accessibility/w3c-svg-content-language-attribute.html Also: Update w3c-svg-presentational-role.html expectations because there are test cases in which elements are now being included in the accessibility tree as a result of this change. Also add new test cases which lack child 'title' and 'desc' elements. * accessibility/AccessibilityNodeObject.h: * accessibility/AccessibilitySVGElement.cpp: (WebCore::AccessibilitySVGElement::childElementWithMatchingLanguage): (WebCore::AccessibilitySVGElement::accessibilityDescription): (WebCore::AccessibilitySVGElement::helpText): (WebCore::AccessibilitySVGElement::computeAccessibilityIsIgnored): (WebCore::AccessibilitySVGElement::determineAriaRoleAttribute): * accessibility/AccessibilitySVGElement.h: * accessibility/AccessibilitySVGRoot.h: LayoutTests: Update w3c-svg-presentational-role.html expectations because there are test cases in which elements are now being included in the accessibility tree as a result of this change. Also add new test cases which lack child 'title' and 'desc' elements. * accessibility/w3c-svg-content-language-attribute.html: Added. * accessibility/w3c-svg-presentational-role.html: New test cases added. * platform/gtk/accessibility/w3c-svg-content-language-attribute-expected.txt: Added. * platform/gtk/accessibility/w3c-svg-presentational-role-expected.txt: Updated. * platform/mac/accessibility/w3c-svg-content-language-attribute-expected.txt: Added. * platform/mac/accessibility/w3c-svg-presentational-role-expected.txt: Updated. Canonical link: https://commits.webkit.org/174728@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@199588 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2016-04-15 15:51:27 +00:00
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="../resources/js-test-pre.js"></script>
</head>
<meta http-equiv="content-language" content="en-gb">
<body id="body">
<div id="content">
<svg>
<circle id="test1" cx="50" cy="100" r="15" data-expected="name: generic title; description: generic desc">
<title>generic title</title>
<desc>generic desc</desc>
</circle>
</svg>
<svg>
<circle id="test2" cx="50" cy="100" r="15" data-expected="name: title for en; description: desc for en">
<title lang="de">title for de</title>
<title lang="fr">title for fr</title>
<title lang="en">title for en</title>
<desc lang="fr">desc for fr</desc>
<desc lang="en">desc for en</desc>
<desc lang="es">desc for es</desc>
</circle>
</svg>
<svg>
<circle id="test3" cx="50" cy="100" r="15" data-expected="name: title for en; description: desc for en">
<title>generic title</title>
<title lang="fr">title for fr</title>
<title lang="en">title for en</title>
<desc>generic desc</desc>
<desc lang="en">desc for en</desc>
<desc lang="es">desc for es</desc>
</circle>
</svg>
<svg>
<circle id="test4" cx="50" cy="100" r="15" data-expected="name: title for EN; description: desc for EN">
<title>generic title</title>
<title lang="fr">title for fr</title>
<title lang="EN">title for EN</title>
<desc>generic desc</desc>
<desc lang="EN">desc for EN</desc>
<desc lang="es">desc for es</desc>
</circle>
</svg>
<svg>
<circle id="test5" cx="50" cy="100" r="15" data-expected="name: generic title; description: generic desc">
<title>generic title</title>
<title lang="fr">title for fr</title>
<desc>generic desc</desc>
<desc lang="es">desc for es</desc>
</circle>
</svg>
<svg>
<circle id="test6" cx="50" cy="100" r="15" data-expected="name: generic title; description: generic desc">
<title lang="fr">title for fr</title>
<title>generic title</title>
<desc lang="es">desc for es</desc>
<desc>generic desc</desc>
</circle>
</svg>
<svg>
<circle id="test7" cx="50" cy="100" r="15" data-expected="name: title for en-gb; description: desc for en-gb">
<title>generic title</title>
<title lang="en-us">title for en-us</title>
<title lang="en-gb">title for en-gb</title>
<desc>generic desc</desc>
<desc lang="en-gb">desc for en-gb</desc>
<desc lang="en-us">desc for en-us</desc>
</circle>
</svg>
<svg>
<circle id="test7" cx="50" cy="100" r="15" data-expected="name: title for en_GB; description: desc for en_GB">
<title>generic title</title>
<title lang="en-us">title for en-us</title>
<title lang="en_GB">title for en_GB</title>
<desc>generic desc</desc>
<desc lang="en_GB">desc for en_GB</desc>
<desc lang="en-us">desc for en-us</desc>
</circle>
</svg>
<svg>
<circle id="test8" cx="50" cy="100" r="15" data-expected="name: title for en_GB; description: desc for en_GB">
<title>generic title</title>
<title lang="en">title for en</title>
<title lang="en_GB">title for en_GB</title>
<desc>generic desc</desc>
<desc lang="en_GB">desc for en_GB</desc>
<desc lang="en">desc for en</desc>
</circle>
</svg>
<svg>
<circle id="test9" cx="50" cy="100" r="15" data-expected="name: title for en; description: desc for en">
<title>generic title</title>
<title lang="en">title for en</title>
<title lang="en_US">title for en_US</title>
<desc>generic desc</desc>
<desc lang="en_US">desc for en_US</desc>
<desc lang="en">desc for en</desc>
</circle>
</svg>
<svg>
<circle id="test10" cx="50" cy="100" r="15" data-expected="name: title for en-us; description: desc for en-us">
<title lang="fr">title for fr</title>
<title lang="en-us">title for en-us</title>
<desc lang="fr">desc for fr</desc>
<desc lang="en-us">desc for en-us</desc>
</circle>
</svg>
<svg>
<circle id="test11" cx="50" cy="100" r="15" data-expected="name: title for en-us; description: desc for en-us">
<title>generic title</title>
<title lang="en-us">title for en-us</title>
<desc>generic desc</desc>
<desc lang="en-us">desc for en-us</desc>
</circle>
</svg>
<svg>
<circle id="test12" cx="50" cy="100" r="15" data-expected="name: generic title; description: generic desc">
<title>generic title</title>
<title lang="fr">title for fr</title>
<desc lang="fr">desc for fr</desc>
<desc>generic desc</desc>
</circle>
</svg>
<svg>
<circle id="test13" cx="50" cy="100" r="15" data-expected="name: 1st title for en_GB; description: 1st desc for en_GB">
<title>generic title</title>
<title lang="en_GB">1st title for en_GB</title>
<title lang="en_GB">2nd title for en_GB</title>
<desc>generic desc</desc>
<desc lang="en_GB">1st desc for en_GB</desc>
<desc lang="en_GB">2nd desc for en_GB</desc>
<desc lang="en">desc for en</desc>
</circle>
</svg>
<svg>
<circle id="test14" cx="50" cy="100" r="15" data-expected="name: 1st generic title; description: 1st generic desc">
<title>1st generic title</title>
<title>2nd generic title</title>
<desc>1st generic desc</desc>
<desc>2nd generic desc</desc>
</circle>
</svg>
</div>
<p id="description"></p>
<div id="console"></div>
<script>
function textAlternatives(axElement) {
if (!axElement)
return "Element not exposed";
result = axElement.title + "\n\t" + axElement.description;
if (accessibilityController.platformName == "mac")
result += "\n\t" + axElement.helpText;
return result;
}
description("This tests the accessible text alternatives results for SVG when the content-language attribute is set.");
if (window.accessibilityController) {
for (var i = 1; i <= 14; i++) {
var element = document.getElementById("test" + i);
var axElement = accessibilityController.accessibleElementById("test" + i);
var result = textAlternatives(axElement);
debug("test" + i + ":\n\tExpected " + element.getAttribute("data-expected") + "\n\t" + result);
}
document.getElementById("content").style.visibility = "hidden";
}
</script>
<script src="../resources/js-test-post.js"></script>
</body>
</html>