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Merge e48c45af43 into 63a5717bc7
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sideshowbarker
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3 changed files with 113 additions and 4 deletions
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@ -51,6 +51,8 @@
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#include <LibWeb/Namespace.h>
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#include <LibWeb/Painting/Paintable.h>
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#include <LibWeb/Painting/PaintableBox.h>
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#include <LibWeb/SVG/SVGTitleElement.h>
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#include <LibWeb/XLink/AttributeNames.h>
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namespace Web::DOM {
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@ -2354,11 +2356,25 @@ ErrorOr<String> Node::name_or_description(NameOrDescription target, Document con
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// element (e.g. HTML label or SVG title) that defines a text alternative, return that alternative in the form
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// of a flat string as defined by the host language, unless the element is marked as presentational
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// (role="presentation" or role="none").
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if (role != ARIA::Role::presentation && role != ARIA::Role::none && is<HTML::HTMLImageElement>(*element)) {
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// TODO: Confirm (through existing WPT test cases) whether HTMLLabelElement is already handled (by the code for
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// step C. “Embedded Control” above) in conformance with the spec requirements — and if not, then add handling.
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if (role != ARIA::Role::presentation && role != ARIA::Role::none && is<HTML::HTMLImageElement>(*element))
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return element->alternative_text().release_value();
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// TODO: Add handling for SVGTitleElement, and also confirm (through existing WPT test cases) whether
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// HTMLLabelElement is already handled (by the code for step C. “Embedded Control” above) in conformance
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// with the spec requirements — and if not, then add handling for it here.
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// https://w3c.github.io/svg-aam/#mapping_additional_nd
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Optional<String> title_element_text;
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if (element->is_svg_element()) {
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// If the current node has at least one direct child title element, select the appropriate title based on
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// the language rules for the SVG specification, and return the title text alternative as a flat string.
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element->for_each_child_of_type<SVG::SVGTitleElement>([&](SVG::SVGTitleElement const& title) mutable {
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title_element_text = title.text_content();
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return IterationDecision::Break;
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});
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if (title_element_text.has_value())
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return title_element_text.value();
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// If the current node is a link, and there was no child title element, but it has an xlink:title attribute,
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// return the value of that attribute.
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if (auto title_attribute = element->get_attribute_ns(Namespace::XLink, XLink::AttributeNames::title); title_attribute.has_value())
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return title_attribute.value();
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}
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// F. Otherwise, if the current node's role allows name from content, or if the current node is referenced by aria-labelledby, aria-describedby, or is a native host language text alternative element (e.g. label in HTML), or is a descendant of a native host language text alternative element:
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@ -0,0 +1,22 @@
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Summary
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Harness status: OK
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Rerun
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Found 12 tests
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12 Pass
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Details
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Result Test Name MessagePass circle > title
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Pass rect > title
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Pass polygon > title
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Pass g > title
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Pass [xlink:title][href] > circle
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Pass [xlink:title][href] > rect
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Pass [xlink:title][href] > polygon
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Pass [xlink:title][href] > g
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Pass [xlink:title][xlink:href] > circle
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Pass [xlink:title][xlink:href] > rect
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Pass [xlink:title][xlink:href] > polygon
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Pass [xlink:title][xlink:href] > g
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@ -0,0 +1,71 @@
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<!doctype html>
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<html>
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<head>
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<title>Name Comp: Host Language Label</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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<script src="../../resources/testdriver.js"></script>
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<script src="../../resources/testdriver-vendor.js"></script>
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<script src="../../resources/testdriver-actions.js"></script>
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<script src="../../wai-aria/scripts/aria-utils.js"></script>
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</head>
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<body>
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<h1>SVG-AAM: Label Tests</h1>
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<p>Tests SVG-specific host language label rules (title element and xlink:title attr) in <a href="https://w3c.github.io/svg-aam/#mapping_additional_nd">SVG-AAM §8.1 Name and Description</a>, but note the open issues in <a href="https://github.com/w3c/svg-aam/issues/31">SVG-AAM #31</a>.
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<h2>SVG * > title</h2>
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<svg viewbox="0 0 300 100">
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<circle cx="26" cy="26" r="25" data-expectedlabel="circle label" data-testname="circle > title" class="ex"><title>circle label</title></circle>
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<rect x="60" y="1" width="50" height="50" data-expectedlabel="rect label" data-testname="rect > title" class="ex"><title>rect label</title></rect>
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<polygon points="100,100 150,25 150,75 200,0" fill="none" stroke="black" data-expectedlabel="polygon label" data-testname="polygon > title" class="ex"><title>polygon label</title></polygon>
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</svg><br>
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<svg viewbox="0 0 200 90">
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<g fill="white" stroke="green" stroke-width="5" data-expectedlabel="group label" data-testname="g > title" class="ex">
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<title>group label</title>
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<circle cx="40" cy="40" r="25" />
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<circle cx="60" cy="60" r="25" />
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</g>
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</svg>
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<br>
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<h2>SVG a[xlink:title][href]</h2>
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<svg viewbox="0 0 300 100">
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<a href="#" data-expectedlabel="circle link label" xlink:title="circle link label" data-testname="[xlink:title][href] > circle" class="ex"><circle cx="26" cy="26" r="25"></circle></a>
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<a href="#" data-expectedlabel="rect link label" xlink:title="rect link label" data-testname="[xlink:title][href] > rect" class="ex"><rect x="60" y="1" width="50" height="50"></rect></a>
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<a href="#" data-expectedlabel="polygon link label" xlink:title="polygon link label" data-testname="[xlink:title][href] > polygon" class="ex"><polygon points="100,100 150,25 150,75 200,0" fill="none" stroke="black"></polygon></a>
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</svg><br>
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<svg viewbox="0 0 200 90">
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<a href="#" data-expectedlabel="group link label" xlink:title="group link label" data-testname="[xlink:title][href] > g" class="ex">
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<g fill="white" stroke="green" stroke-width="5">
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<circle cx="40" cy="40" r="25" />
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<circle cx="60" cy="60" r="25" />
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</g>
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</a>
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</svg>
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<br>
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<h2>SVG a[xlink:title][xlink:href]:not([href])</h2>
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<svg viewbox="0 0 300 100">
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<a xlink:href="#" data-expectedlabel="circle link label" xlink:title="circle link label" data-testname="[xlink:title][xlink:href] > circle" class="ex"><circle cx="26" cy="26" r="25"></circle></a>
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<a xlink:href="#" data-expectedlabel="rect link label" xlink:title="rect link label" data-testname="[xlink:title][xlink:href] > rect" class="ex"><rect x="60" y="1" width="50" height="50"></rect></a>
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<a xlink:href="#" data-expectedlabel="polygon link label" xlink:title="polygon link label" data-testname="[xlink:title][xlink:href] > polygon" class="ex"><polygon points="100,100 150,25 150,75 200,0" fill="none" stroke="black"></polygon></a>
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</svg><br>
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<svg viewbox="0 0 200 90">
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<a xlink:href="#" data-expectedlabel="group link label" xlink:title="group link label" data-testname="[xlink:title][xlink:href] > g" class="ex">
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<g fill="white" stroke="green" stroke-width="5">
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<circle cx="40" cy="40" r="25" />
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<circle cx="60" cy="60" r="25" />
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</g>
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</a>
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</svg>
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<br>
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<script>
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AriaUtils.verifyLabelsBySelector(".ex");
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</script>
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</body>
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</html>
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