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LibWeb: Add Functionality to Dump to Accessibility Tree

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This will be used to display the accessibility tree in the inspector.
This commit is contained in:
Jonah 2022-12-11 10:56:37 -06:00 • committed by Sam Atkins
parent 3eef54823a
commit a469bbd178
4 changed files with 70 additions and 0 deletions
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45
Userland/Libraries/LibWeb/DOM/Node.cpp
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@ -29,6 +29,7 @@
#include <LibWeb/DOM/StaticNodeList.h>
#include <LibWeb/HTML/BrowsingContextContainer.h>
#include <LibWeb/HTML/HTMLAnchorElement.h>
#include <LibWeb/HTML/HTMLStyleElement.h>
#include <LibWeb/HTML/Origin.h>
#include <LibWeb/HTML/Parser/HTMLParser.h>
#include <LibWeb/Layout/InitialContainingBlock.h>
@ -1542,4 +1543,48 @@ bool Node::is_following(Node const& other) const
return false;
}
void Node::build_accessibility_tree(AccessibilityTreeNode& parent) const
{
if (is_uninteresting_whitespace_node())
return;
if (is_document()) {
auto const* document = static_cast<DOM::Document const*>(this);
auto const* document_element = document->document_element();
if (document_element) {
parent.set_value(document_element);
if (document_element->has_child_nodes())
document_element->for_each_child([&parent](DOM::Node const& child) {
child.build_accessibility_tree(parent);
});
}
} else if (is_element()) {
auto const* element = static_cast<DOM::Element const*>(this);
if (is<HTML::HTMLScriptElement>(element) || is<HTML::HTMLStyleElement>(element))
return;
if (element->include_in_accessibility_tree()) {
auto current_node = AccessibilityTreeNode::create(const_cast<Document*>(&this->document()), this);
parent.append_child(current_node);
if (has_child_nodes()) {
for_each_child([&current_node](DOM::Node& child) {
child.build_accessibility_tree(*current_node);
});
}
} else if (has_child_nodes()) {
for_each_child([&parent](DOM::Node& child) {
child.build_accessibility_tree(parent);
});
}
} else if (is_text()) {
parent.append_child(AccessibilityTreeNode::create(const_cast<Document*>(&this->document()), this));
if (has_child_nodes()) {
for_each_child([&parent](DOM::Node& child) {
child.build_accessibility_tree(parent);
});
}
}
}
}