LibWeb: Add Support for the ARIA Element Properties

Element now supports getting and setting ARIA properties from
JS and HTML.

1 files changed, 85 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/HTML/HTMLElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLElement.cpp
index e250d35744..27c5447f87 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLElement.cpp
@@ -6,6 +6,7 @@
 
 #include <AK/StringBuilder.h>
 #include <LibJS/Interpreter.h>
+#include <LibWeb/DOM/ARIARoleNames.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/IDLEventListener.h>
 #include <LibWeb/DOM/ShadowRoot.h>
@@ -327,4 +328,88 @@ void HTMLElement::blur()
     // User agents may selectively or uniformly ignore calls to this method for usability reasons.
 }
 
+FlyString HTMLElement::default_role() const
+{
+    // https://www.w3.org/TR/html-aria/#el-article
+    if (local_name() == TagNames::article)
+        return DOM::ARIARoleNames::article;
+    // https://www.w3.org/TR/html-aria/#el-aside
+    if (local_name() == TagNames::aside)
+        return DOM::ARIARoleNames::complementary;
+    // https://www.w3.org/TR/html-aria/#el-b
+    if (local_name() == TagNames::b)
+        return DOM::ARIARoleNames::generic;
+    // https://www.w3.org/TR/html-aria/#el-bdi
+    if (local_name() == TagNames::bdi)
+        return DOM::ARIARoleNames::generic;
+    // https://www.w3.org/TR/html-aria/#el-bdo
+    if (local_name() == TagNames::bdo)
+        return DOM::ARIARoleNames::generic;
+    // https://www.w3.org/TR/html-aria/#el-code
+    if (local_name() == TagNames::code)
+        return DOM::ARIARoleNames::code;
+    // https://www.w3.org/TR/html-aria/#el-dfn
+    if (local_name() == TagNames::dfn)
+        return DOM::ARIARoleNames::term;
+    // https://www.w3.org/TR/html-aria/#el-em
+    if (local_name() == TagNames::em)
+        return DOM::ARIARoleNames::emphasis;
+    // https://www.w3.org/TR/html-aria/#el-figure
+    if (local_name() == TagNames::figure)
+        return DOM::ARIARoleNames::figure;
+    // https://www.w3.org/TR/html-aria/#el-footer
+    if (local_name() == TagNames::footer) {
+        // TODO: If not a descendant of an article, aside, main, nav or section element, or an element with role=article, complementary, main, navigation or region then role=contentinfo
+        // Otherwise, role=generic
+        return DOM::ARIARoleNames::generic;
+    }
+    // https://www.w3.org/TR/html-aria/#el-header
+    if (local_name() == TagNames::header) {
+        // TODO: If not a descendant of an article, aside, main, nav or section element, or an element with role=article, complementary, main, navigation or region then role=banner
+        // Otherwise, role=generic
+        return DOM::ARIARoleNames::generic;
+    }
+    // https://www.w3.org/TR/html-aria/#el-hgroup
+    if (local_name() == TagNames::hgroup)
+        return DOM::ARIARoleNames::generic;
+    // https://www.w3.org/TR/html-aria/#el-i
+    if (local_name() == TagNames::i)
+        return DOM::ARIARoleNames::generic;
+    // https://www.w3.org/TR/html-aria/#el-main
+    if (local_name() == TagNames::main)
+        return DOM::ARIARoleNames::main;
+    // https://www.w3.org/TR/html-aria/#el-nav
+    if (local_name() == TagNames::nav)
+        return DOM::ARIARoleNames::navigation;
+    // https://www.w3.org/TR/html-aria/#el-samp
+    if (local_name() == TagNames::samp)
+        return DOM::ARIARoleNames::generic;
+    // https://www.w3.org/TR/html-aria/#el-section
+    if (local_name() == TagNames::section) {
+        // TODO:  role=region if the section element has an accessible name
+        //        Otherwise, no corresponding role
+        return DOM::ARIARoleNames::region;
+    }
+    // https://www.w3.org/TR/html-aria/#el-small
+    if (local_name() == TagNames::small)
+        return DOM::ARIARoleNames::generic;
+    // https://www.w3.org/TR/html-aria/#el-strong
+    if (local_name() == TagNames::strong)
+        return DOM::ARIARoleNames::strong;
+    // https://www.w3.org/TR/html-aria/#el-sub
+    if (local_name() == TagNames::sub)
+        return DOM::ARIARoleNames::subscript;
+    // https://www.w3.org/TR/html-aria/#el-summary
+    if (local_name() == TagNames::summary)
+        return DOM::ARIARoleNames::button;
+    // https://www.w3.org/TR/html-aria/#el-sup
+    if (local_name() == TagNames::sup)
+        return DOM::ARIARoleNames::superscript;
+    // https://www.w3.org/TR/html-aria/#el-u
+    if (local_name() == TagNames::u)
+        return DOM::ARIARoleNames::generic;
+
+    return {};
+}
+
 }