9b79a686eb
The main motivation behind this is to remove JS specifics of the Realm from the implementation of the Heap. As a side effect of this change, this is a bit nicer to read than the previous approach, and in my opinion, also makes it a little more clear that this method is specific to a JavaScript Realm.
154 lines
4.9 KiB
C++
154 lines
4.9 KiB
C++
/*
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* Copyright (c) 2023, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/VisualViewportPrototype.h>
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#include <LibWeb/CSS/VisualViewport.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/EventDispatcher.h>
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#include <LibWeb/DOM/IDLEventListener.h>
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#include <LibWeb/HTML/EventHandler.h>
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#include <LibWeb/HTML/EventNames.h>
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namespace Web::CSS {
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JS_DEFINE_ALLOCATOR(VisualViewport);
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JS::NonnullGCPtr<VisualViewport> VisualViewport::create(DOM::Document& document)
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{
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return document.realm().create<VisualViewport>(document);
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}
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VisualViewport::VisualViewport(DOM::Document& document)
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: DOM::EventTarget(document.realm())
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, m_document(document)
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{
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}
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void VisualViewport::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(VisualViewport);
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}
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void VisualViewport::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_document);
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}
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// https://drafts.csswg.org/cssom-view/#dom-visualviewport-offsetleft
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double VisualViewport::offset_left() const
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{
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// 1. If the visual viewport’s associated document is not fully active, return 0.
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if (!m_document->is_fully_active())
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return 0;
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// 2. Otherwise, return the offset of the left edge of the visual viewport from the left edge of the layout viewport.
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VERIFY(m_document->navigable());
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return m_document->viewport_rect().left().to_double();
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}
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// https://drafts.csswg.org/cssom-view/#dom-visualviewport-offsettop
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double VisualViewport::offset_top() const
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{
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// 1. If the visual viewport’s associated document is not fully active, return 0.
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if (!m_document->is_fully_active())
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return 0;
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// 2. Otherwise, return the offset of the top edge of the visual viewport from the top edge of the layout viewport.
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VERIFY(m_document->navigable());
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return m_document->viewport_rect().top().to_double();
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}
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// https://drafts.csswg.org/cssom-view/#dom-visualviewport-pageleft
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double VisualViewport::page_left() const
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{
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// 1. If the visual viewport’s associated document is not fully active, return 0.
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if (!m_document->is_fully_active())
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return 0;
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// FIXME: 2. Otherwise, return the offset of the left edge of the visual viewport
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// from the left edge of the initial containing block of the layout viewport’s document.
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return offset_left();
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}
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// https://drafts.csswg.org/cssom-view/#dom-visualviewport-pagetop
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double VisualViewport::page_top() const
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{
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// 1. If the visual viewport’s associated document is not fully active, return 0.
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if (!m_document->is_fully_active())
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return 0;
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// FIXME: 2. Otherwise, return the offset of the top edge of the visual viewport
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// from the top edge of the initial containing block of the layout viewport’s document.
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return offset_top();
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}
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// https://drafts.csswg.org/cssom-view/#dom-visualviewport-width
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double VisualViewport::width() const
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{
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// 1. If the visual viewport’s associated document is not fully active, return 0.
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if (!m_document->is_fully_active())
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return 0;
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// 2. Otherwise, return the width of the visual viewport
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// FIXME: excluding the width of any rendered vertical classic scrollbar that is fixed to the visual viewport.
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VERIFY(m_document->navigable());
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return m_document->viewport_rect().width().to_double();
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}
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// https://drafts.csswg.org/cssom-view/#dom-visualviewport-height
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double VisualViewport::height() const
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{
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// 1. If the visual viewport’s associated document is not fully active, return 0.
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if (!m_document->is_fully_active())
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return 0;
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// 2. Otherwise, return the height of the visual viewport
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// FIXME: excluding the height of any rendered vertical classic scrollbar that is fixed to the visual viewport.
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VERIFY(m_document->navigable());
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return m_document->viewport_rect().height().to_double();
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}
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// https://drafts.csswg.org/cssom-view/#dom-visualviewport-scale
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double VisualViewport::scale() const
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{
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// FIXME: Implement.
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return 1;
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}
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void VisualViewport::set_onresize(WebIDL::CallbackType* event_handler)
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{
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set_event_handler_attribute(HTML::EventNames::resize, event_handler);
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}
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WebIDL::CallbackType* VisualViewport::onresize()
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{
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return event_handler_attribute(HTML::EventNames::resize);
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}
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void VisualViewport::set_onscroll(WebIDL::CallbackType* event_handler)
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{
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set_event_handler_attribute(HTML::EventNames::scroll, event_handler);
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}
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WebIDL::CallbackType* VisualViewport::onscroll()
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{
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return event_handler_attribute(HTML::EventNames::scroll);
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}
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void VisualViewport::set_onscrollend(WebIDL::CallbackType* event_handler)
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{
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set_event_handler_attribute(HTML::EventNames::scrollend, event_handler);
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}
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WebIDL::CallbackType* VisualViewport::onscrollend()
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{
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return event_handler_attribute(HTML::EventNames::scrollend);
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}
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}
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