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LibWeb: Add Page abstraction between PageView and main Frame

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* A PageView is a view onto a Page object.
* A Page always has a main Frame (root of Frame tree.)
* Page has a PageClient. PageView is a PageClient.

The goal here is to allow building another kind of view onto
a Page while keeping the rest of LibWeb intact.
This commit is contained in:
Andreas Kling 2020-06-08 20:31:49 +02:00
parent 5072d4e02d
commit 92392398a2
16 changed files with 351 additions and 179 deletions
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13
Libraries/LibWeb/Frame/Frame.h
View file

@ -42,7 +42,7 @@ namespace Web {
class Frame : public TreeNode<Frame> {
public:
static NonnullRefPtr<Frame> create_subframe(Element& host_element, Frame& main_frame) { return adopt(*new Frame(host_element, main_frame)); }
static NonnullRefPtr<Frame> create(PageView& page_view) { return adopt(*new Frame(page_view)); }
static NonnullRefPtr<Frame> create(Page& page) { return adopt(*new Frame(page)); }
~Frame();
bool is_main_frame() const { return this == &m_main_frame; }
@ -52,8 +52,8 @@ public:
void set_document(Document*);
PageView* page_view() { return is_main_frame() ? m_page_view : main_frame().m_page_view; }
const PageView* page_view() const { return is_main_frame() ? m_page_view : main_frame().m_page_view; }
Page& page() { return m_page; }
const Page& page() const { return m_page; }
const Gfx::Size& size() const { return m_size; }
void set_size(const Gfx::Size&);
@ -84,17 +84,20 @@ public:
Element* host_element() { return m_host_element; }
const Element* host_element() const { return m_host_element; }
Gfx::Point to_main_frame_position(const Gfx::Point&);
Gfx::Rect to_main_frame_rect(const Gfx::Rect&);
private:
explicit Frame(Element& host_element, Frame& main_frame);
explicit Frame(PageView&);
explicit Frame(Page&);
Page& m_page;
Frame& m_main_frame;
FrameLoader m_loader;
EventHandler m_event_handler;
WeakPtr<Element> m_host_element;
WeakPtr<PageView> m_page_view;
RefPtr<Document> m_document;
Gfx::Size m_size;
Gfx::Rect m_viewport_rect;