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- /*
- * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #pragma once
- #include <AK/Function.h>
- #include <AK/Noncopyable.h>
- #include <AK/RefPtr.h>
- #include <AK/WeakPtr.h>
- #include <LibCore/Timer.h>
- #include <LibGfx/Bitmap.h>
- #include <LibGfx/Rect.h>
- #include <LibGfx/Size.h>
- #include <LibWeb/DOM/Position.h>
- #include <LibWeb/HTML/BrowsingContextContainer.h>
- #include <LibWeb/Loader/FrameLoader.h>
- #include <LibWeb/Page/EventHandler.h>
- #include <LibWeb/TreeNode.h>
- namespace Web::HTML {
- class BrowsingContext : public TreeNode<BrowsingContext> {
- public:
- static NonnullRefPtr<BrowsingContext> create_nested(Page& page, HTML::BrowsingContextContainer& container) { return adopt_ref(*new BrowsingContext(page, &container)); }
- static NonnullRefPtr<BrowsingContext> create(Page& page) { return adopt_ref(*new BrowsingContext(page, nullptr)); }
- ~BrowsingContext();
- class ViewportClient {
- public:
- virtual ~ViewportClient() = default;
- virtual void browsing_context_did_set_viewport_rect(Gfx::IntRect const&) = 0;
- };
- void register_viewport_client(ViewportClient&);
- void unregister_viewport_client(ViewportClient&);
- bool is_top_level() const;
- bool is_focused_context() const;
- DOM::Document const* active_document() const { return m_active_document; }
- DOM::Document* active_document() { return m_active_document; }
- void set_active_document(DOM::Document*);
- Page* page() { return m_page; }
- Page const* page() const { return m_page; }
- Gfx::IntSize const& size() const { return m_size; }
- void set_size(Gfx::IntSize const&);
- void set_needs_display();
- void set_needs_display(Gfx::IntRect const&);
- Gfx::IntPoint const& viewport_scroll_offset() const { return m_viewport_scroll_offset; }
- void set_viewport_scroll_offset(Gfx::IntPoint const&);
- Gfx::IntRect viewport_rect() const { return { m_viewport_scroll_offset, m_size }; }
- void set_viewport_rect(Gfx::IntRect const&);
- FrameLoader& loader() { return m_loader; }
- FrameLoader const& loader() const { return m_loader; }
- Web::EventHandler& event_handler() { return m_event_handler; }
- Web::EventHandler const& event_handler() const { return m_event_handler; }
- void scroll_to_anchor(String const&);
- BrowsingContext& top_level_browsing_context()
- {
- BrowsingContext* context = this;
- while (context->parent())
- context = context->parent();
- return *context;
- }
- BrowsingContext const& top_level_browsing_context() const { return const_cast<BrowsingContext*>(this)->top_level_browsing_context(); }
- HTML::BrowsingContextContainer* container() { return m_container; }
- HTML::BrowsingContextContainer const* container() const { return m_container; }
- Gfx::IntPoint to_top_level_position(Gfx::IntPoint const&);
- Gfx::IntRect to_top_level_rect(Gfx::IntRect const&);
- DOM::Position const& cursor_position() const { return m_cursor_position; }
- void set_cursor_position(DOM::Position);
- bool increment_cursor_position_offset();
- bool decrement_cursor_position_offset();
- bool cursor_blink_state() const { return m_cursor_blink_state; }
- String selected_text() const;
- void select_all();
- void did_edit(Badge<EditEventHandler>);
- void register_frame_nesting(AK::URL const&);
- bool is_frame_nesting_allowed(AK::URL const&) const;
- void set_frame_nesting_levels(HashMap<AK::URL, size_t> frame_nesting_levels) { m_frame_nesting_levels = move(frame_nesting_levels); };
- HashMap<AK::URL, size_t> const& frame_nesting_levels() const { return m_frame_nesting_levels; }
- DOM::Document* container_document();
- DOM::Document const* container_document() const;
- bool has_a_rendering_opportunity() const;
- RefPtr<DOM::Node> currently_focused_area();
- String const& name() const { return m_name; }
- void set_name(String const& name) { m_name = name; }
- private:
- explicit BrowsingContext(Page&, HTML::BrowsingContextContainer*);
- void reset_cursor_blink_cycle();
- WeakPtr<Page> m_page;
- FrameLoader m_loader;
- Web::EventHandler m_event_handler;
- WeakPtr<HTML::BrowsingContextContainer> m_container;
- RefPtr<DOM::Document> m_active_document;
- Gfx::IntSize m_size;
- Gfx::IntPoint m_viewport_scroll_offset;
- DOM::Position m_cursor_position;
- RefPtr<Core::Timer> m_cursor_blink_timer;
- bool m_cursor_blink_state { false };
- HashTable<ViewportClient*> m_viewport_clients;
- HashMap<AK::URL, size_t> m_frame_nesting_levels;
- String m_name;
- };
- }
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