7 files changed, 79 insertions, 2 deletions
diff --git a/Libraries/LibHTML/DOM/Document.cpp b/Libraries/LibHTML/DOM/Document.cpp
index 45482fd91d..97e5873c4f 100644
--- a/Libraries/LibHTML/DOM/Document.cpp
+++ b/Libraries/LibHTML/DOM/Document.cpp
@@ -1,6 +1,7 @@
 #include <LibHTML/CSS/StyleResolver.h>
 #include <LibHTML/DOM/Document.h>
 #include <LibHTML/DOM/Element.h>
+#include <LibHTML/DOM/HTMLBodyElement.h>
 #include <LibHTML/DOM/HTMLHeadElement.h>
 #include <LibHTML/DOM/HTMLHtmlElement.h>
 #include <LibHTML/DOM/HTMLTitleElement.h>
@@ -52,6 +53,14 @@ const HTMLHeadElement* Document::head() const
     return static_cast<const HTMLHeadElement*>(html->first_child_with_tag_name("head"));
 }
 
+const HTMLBodyElement* Document::body() const
+{
+    auto* html = document_element();
+    if (!html)
+        return nullptr;
+    return static_cast<const HTMLBodyElement*>(html->first_child_with_tag_name("body"));
+}
+
 String Document::title() const
 {
     auto* head_element = head();
@@ -73,3 +82,20 @@ void Document::attach_to_frame(Badge<Frame>, Frame& frame)
 void Document::detach_from_frame(Badge<Frame>, Frame&)
 {
 }
+
+Color Document::background_color() const
+{
+    auto* body_element = body();
+    if (!body_element)
+        return Color::White;
+
+    auto* body_layout_node = body_element->layout_node();
+    if (!body_layout_node)
+        return Color::White;
+
+    auto background_color = body_layout_node->style().property("background-color");
+    if (!background_color.has_value() || !background_color.value()->is_color())
+        return Color::White;
+
+    return background_color.value()->to_color();
+}
diff --git a/Libraries/LibHTML/DOM/Document.h b/Libraries/LibHTML/DOM/Document.h
index 46d8fe1581..07ea5454b2 100644
--- a/Libraries/LibHTML/DOM/Document.h
+++ b/Libraries/LibHTML/DOM/Document.h
@@ -9,6 +9,7 @@
 #include <LibHTML/DOM/ParentNode.h>
 
 class Frame;
+class HTMLBodyElement;
 class HTMLHtmlElement;
 class HTMLHeadElement;
 class LayoutNode;
@@ -35,6 +36,7 @@ public:
 
     const HTMLHtmlElement* document_element() const;
     const HTMLHeadElement* head() const;
+    const HTMLBodyElement* body() const;
 
     String title() const;
 
@@ -44,6 +46,8 @@ public:
     Frame* frame() { return m_frame.ptr(); }
     const Frame* frame() const { return m_frame.ptr(); }
 
+    Color background_color() const;
+
 private:
     OwnPtr<StyleResolver> m_style_resolver;
     NonnullRefPtrVector<StyleSheet> m_sheets;
diff --git a/Libraries/LibHTML/DOM/Element.h b/Libraries/LibHTML/DOM/Element.h
index 42e564ef2e..c01b44d29c 100644
--- a/Libraries/LibHTML/DOM/Element.h
+++ b/Libraries/LibHTML/DOM/Element.h
@@ -1,7 +1,7 @@
 #pragma once
 
-#include <LibHTML/DOM/ParentNode.h>
 #include <AK/String.h>
+#include <LibHTML/DOM/ParentNode.h>
 
 class Attribute {
 public:
@@ -42,6 +42,8 @@ public:
 
     bool has_class(const StringView&) const;
 
+    virtual void apply_presentational_hints(StyleProperties&) const {}
+
 private:
     Attribute* find_attribute(const String& name);
     const Attribute* find_attribute(const String& name) const;
@@ -49,4 +51,3 @@ private:
     String m_tag_name;
     Vector<Attribute> m_attributes;
 };
-
diff --git a/Libraries/LibHTML/DOM/HTMLBodyElement.cpp b/Libraries/LibHTML/DOM/HTMLBodyElement.cpp
new file mode 100644
index 0000000000..e993ce470e
--- /dev/null
+++ b/Libraries/LibHTML/DOM/HTMLBodyElement.cpp
@@ -0,0 +1,27 @@
+#include <LibHTML/CSS/StyleProperties.h>
+#include <LibHTML/CSS/StyleValue.h>
+#include <LibHTML/DOM/HTMLBodyElement.h>
+
+HTMLBodyElement::HTMLBodyElement(Document& document, const String& tag_name)
+    : HTMLElement(document, tag_name)
+{
+}
+
+HTMLBodyElement::~HTMLBodyElement()
+{
+}
+
+void HTMLBodyElement::apply_presentational_hints(StyleProperties& style) const
+{
+    for_each_attribute([&](auto& name, auto& value) {
+        if (name == "bgcolor") {
+            auto color = Color::from_string(value);
+            if (color.has_value())
+                style.set_property("background-color", ColorStyleValue::create(color.value()));
+        } else if (name == "text") {
+            auto color = Color::from_string(value);
+            if (color.has_value())
+                style.set_property("color", ColorStyleValue::create(color.value()));
+        }
+    });
+}
diff --git a/Libraries/LibHTML/DOM/HTMLBodyElement.h b/Libraries/LibHTML/DOM/HTMLBodyElement.h
new file mode 100644
index 0000000000..2c3a5b3f62
--- /dev/null
+++ b/Libraries/LibHTML/DOM/HTMLBodyElement.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <LibHTML/DOM/HTMLElement.h>
+
+class HTMLBodyElement : public HTMLElement {
+public:
+    HTMLBodyElement(Document&, const String& tag_name);
+    virtual ~HTMLBodyElement() override;
+
+    virtual void apply_presentational_hints(StyleProperties&) const override;
+};
diff --git a/Libraries/LibHTML/DOM/Node.cpp b/Libraries/LibHTML/DOM/Node.cpp
index b4203cc594..5bfa99895f 100644
--- a/Libraries/LibHTML/DOM/Node.cpp
+++ b/Libraries/LibHTML/DOM/Node.cpp
@@ -27,6 +27,8 @@ RefPtr<LayoutNode> Node::create_layout_node(const StyleResolver& resolver, const
     if (is_text())
         return adopt(*new LayoutText(static_cast<const Text&>(*this)));
 
+    ASSERT(is_element());
+
     auto style_properties = resolver.resolve_style(static_cast<const Element&>(*this), parent_properties);
 
     auto display_property = style_properties->property("display");
diff --git a/Libraries/LibHTML/DOM/Node.h b/Libraries/LibHTML/DOM/Node.h
index 2e53fe937a..6c60717670 100644
--- a/Libraries/LibHTML/DOM/Node.h
+++ b/Libraries/LibHTML/DOM/Node.h
@@ -58,9 +58,15 @@ public:
     virtual void inserted_into(Node&) {}
     virtual void removed_from(Node&) {}
 
+    const LayoutNode* layout_node() const { return m_layout_node; }
+    LayoutNode* layout_node() { return m_layout_node; }
+
+    void set_layout_node(Badge<LayoutNode>, LayoutNode* layout_node) const { m_layout_node = layout_node; }
+
 protected:
     Node(Document&, NodeType);
 
     Document& m_document;
+    mutable LayoutNode* m_layout_node { nullptr };
     NodeType m_type { NodeType::INVALID };
 };