75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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* Copyright (C) 2017 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "DOMWindowProperty.h"
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#include "EventTarget.h"
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#include <wtf/RefCounted.h>
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namespace WebCore {
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class VisualViewport final : public RefCounted<VisualViewport>, public EventTargetWithInlineData, public DOMWindowProperty {
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WTF_MAKE_ISO_ALLOCATED(VisualViewport);
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public:
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static Ref<VisualViewport> create(DOMWindow& window) { return adoptRef(*new VisualViewport(window)); }
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// EventTarget
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EventTargetInterface eventTargetInterface() const final;
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ScriptExecutionContext* scriptExecutionContext() const final;
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bool addEventListener(const AtomString& eventType, Ref<EventListener>&&, const AddEventListenerOptions&) final;
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double offsetLeft() const;
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double offsetTop() const;
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double pageLeft() const;
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double pageTop() const;
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double width() const;
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double height() const;
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double scale() const;
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void update();
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using RefCounted::ref;
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using RefCounted::deref;
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private:
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explicit VisualViewport(DOMWindow&);
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void refEventTarget() final { ref(); }
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void derefEventTarget() final { deref(); }
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void updateFrameLayout() const;
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double m_offsetLeft { 0 };
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double m_offsetTop { 0 };
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double m_pageLeft { 0 };
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double m_pageTop { 0 };
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double m_width { 0 };
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double m_height { 0 };
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double m_scale { 1 };
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};
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} // namespace WebCore
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