Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89 Commit: 93712b24bf Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256 Reviewed-by: https://github.com/sideshowbarker
2025-06-09 09:34:57 +09:00 · 2024-11-09 12:25:08 -05:00 · 2024-11-09 12:25:08 -05:00 · 93712b24bf · 2024-11-10 11:51:52 +00:00
commit 93712b24bf
parent 950e819ee7
4547 changed files with 104 additions and 113 deletions
--- a/Libraries/LibWeb/DOM/TreeWalker.h
+++ b/Libraries/LibWeb/DOM/TreeWalker.h
@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/DOM/NodeFilter.h>
+
+namespace Web::DOM {
+
+// https://dom.spec.whatwg.org/#treewalker
+class TreeWalker final : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(TreeWalker, Bindings::PlatformObject);
+    JS_DECLARE_ALLOCATOR(TreeWalker);
+
+public:
+    [[nodiscard]] static JS::NonnullGCPtr<TreeWalker> create(Node& root, unsigned what_to_show, JS::GCPtr<NodeFilter>);
+
+    virtual ~TreeWalker() override;
+
+    JS::NonnullGCPtr<Node> current_node() const;
+    void set_current_node(Node&);
+
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> parent_node();
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> first_child();
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> last_child();
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> previous_sibling();
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> next_sibling();
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> previous_node();
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> next_node();
+
+    JS::NonnullGCPtr<Node> root() { return m_root; }
+
+    NodeFilter* filter() { return m_filter.ptr(); }
+
+    unsigned what_to_show() const { return m_what_to_show; }
+
+private:
+    explicit TreeWalker(Node& root);
+
+    virtual void initialize(JS::Realm&) override;
+    virtual void visit_edges(Cell::Visitor&) override;
+
+    enum class ChildTraversalType {
+        First,
+        Last,
+    };
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> traverse_children(ChildTraversalType);
+
+    enum class SiblingTraversalType {
+        Next,
+        Previous,
+    };
+    JS::ThrowCompletionOr<JS::GCPtr<Node>> traverse_siblings(SiblingTraversalType);
+
+    JS::ThrowCompletionOr<NodeFilter::Result> filter(Node&);
+
+    // https://dom.spec.whatwg.org/#concept-traversal-root
+    JS::NonnullGCPtr<Node> m_root;
+
+    // https://dom.spec.whatwg.org/#treewalker-current
+    JS::NonnullGCPtr<Node> m_current;
+
+    // https://dom.spec.whatwg.org/#concept-traversal-whattoshow
+    unsigned m_what_to_show { 0 };
+
+    // https://dom.spec.whatwg.org/#concept-traversal-filter
+    JS::GCPtr<NodeFilter> m_filter;
+
+    // https://dom.spec.whatwg.org/#concept-traversal-active
+    bool m_active { false };
+};
+
+}