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81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
/*
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* Copyright (c) 2022, Jonah Shafran <jonahshafran@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Tuple.h>
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#include <LibWeb/DOM/AccessibilityTreeNode.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/DOM/Node.h>
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#include <LibWeb/DOM/Text.h>
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namespace Web::DOM {
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WebIDL::ExceptionOr<JS::NonnullGCPtr<AccessibilityTreeNode>> AccessibilityTreeNode::create(Document* document, DOM::Node const* value)
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{
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return MUST_OR_THROW_OOM(document->heap().allocate<AccessibilityTreeNode>(document->realm(), value));
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}
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AccessibilityTreeNode::AccessibilityTreeNode(JS::GCPtr<DOM::Node const> value)
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: m_value(value)
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{
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m_children = {};
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}
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void AccessibilityTreeNode::serialize_tree_as_json(JsonObjectSerializer<StringBuilder>& object, Document const& document) const
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{
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if (value()->is_document()) {
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VERIFY_NOT_REACHED();
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} else if (value()->is_element()) {
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auto const* element = static_cast<DOM::Element const*>(value().ptr());
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if (element->include_in_accessibility_tree()) {
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MUST(object.add("type"sv, "element"sv));
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auto role = element->role_or_default();
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bool has_role = role.has_value() && !ARIA::is_abstract_role(*role);
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auto name = MUST(element->accessible_name(document));
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MUST(object.add("name"sv, name));
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auto description = MUST(element->accessible_description(document));
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MUST(object.add("description"sv, description));
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if (has_role)
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MUST(object.add("role"sv, ARIA::role_name(*role)));
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else
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MUST(object.add("role"sv, ""sv));
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} else {
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VERIFY_NOT_REACHED();
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}
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} else if (value()->is_text()) {
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MUST(object.add("type"sv, "text"sv));
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auto const* text_node = static_cast<DOM::Text const*>(value().ptr());
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MUST(object.add("text"sv, text_node->data()));
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}
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if (value()->has_child_nodes()) {
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auto node_children = MUST(object.add_array("children"sv));
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for (auto* child : children()) {
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if (child->value()->is_uninteresting_whitespace_node())
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continue;
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JsonObjectSerializer<StringBuilder> child_object = MUST(node_children.add_object());
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child->serialize_tree_as_json(child_object, document);
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MUST(child_object.finish());
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}
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MUST(node_children.finish());
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}
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}
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void AccessibilityTreeNode::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(value());
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for (auto child : children())
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child->visit_edges(visitor);
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}
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}
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