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#pragma once
#include <AK/Function.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/OwnPtr.h>
#include <AK/String.h>
#include <AK/URL.h>
#include <AK/WeakPtr.h>
#include <LibHTML/CSS/StyleResolver.h>
#include <LibHTML/CSS/StyleSheet.h>
#include <LibHTML/DOM/ParentNode.h>
class CTimer;
class Frame;
class HTMLBodyElement;
class HTMLHtmlElement;
class HTMLHeadElement;
class LayoutDocument;
class LayoutNode;
class StyleResolver;
class StyleSheet;
class Document : public ParentNode {
public:
Document();
virtual ~Document() override;
void set_url(const URL& url) { m_url = url; }
const URL& url() const { return m_url; }
URL complete_url(const String&) const;
void fixup();
StyleResolver& style_resolver() { return *m_style_resolver; }
const StyleResolver& style_resolver() const { return *m_style_resolver; }
void add_sheet(const StyleSheet& sheet) { m_sheets.append(sheet); }
const NonnullRefPtrVector<StyleSheet>& stylesheets() const { return m_sheets; }
virtual String tag_name() const override { return "#document"; }
void set_hovered_node(Node*);
Node* hovered_node() { return m_hovered_node; }
const Node* hovered_node() const { return m_hovered_node; }
const HTMLHtmlElement* document_element() const;
const HTMLHeadElement* head() const;
const HTMLBodyElement* body() const;
String title() const;
void attach_to_frame(Badge<Frame>, Frame&);
void detach_from_frame(Badge<Frame>, Frame&);
Frame* frame() { return m_frame.ptr(); }
const Frame* frame() const { return m_frame.ptr(); }
Color background_color() const;
RefPtr<GraphicsBitmap> background_image() const;
Color link_color() const { return m_link_color; }
void set_link_color(Color);
Color active_link_color() const { return m_active_link_color; }
void set_active_link_color(Color);
Color visited_link_color() const { return m_visited_link_color; }
void set_visited_link_color(Color);
void layout();
void force_layout();
void update_style();
void update_layout();
Function<void()> on_layout_updated;
virtual bool is_child_allowed(const Node&) const override;
const LayoutDocument* layout_node() const;
LayoutDocument* layout_node();
void schedule_style_update();
const Element* get_element_by_id(const String&) const;
Vector<const Element*> get_elements_by_name(const String&) const;
private:
virtual RefPtr<LayoutNode> create_layout_node(const StyleProperties* parent_style) const override;
OwnPtr<StyleResolver> m_style_resolver;
NonnullRefPtrVector<StyleSheet> m_sheets;
RefPtr<Node> m_hovered_node;
WeakPtr<Frame> m_frame;
URL m_url;
RefPtr<LayoutDocument> m_layout_root;
Color m_link_color { Color::Blue };
Color m_active_link_color { Color::Red };
Color m_visited_link_color { Color::Magenta };
RefPtr<CTimer> m_style_update_timer;
};
template<>
inline bool is<Document>(const Node& node)
{
return node.is_document();
}
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