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/*
* Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LayoutMedia_h
#define LayoutMedia_h
#include "core/layout/LayoutImage.h"
#include "platform/wtf/Optional.h"
namespace blink {
class HTMLMediaElement;
class LayoutMedia : public LayoutImage {
public:
explicit LayoutMedia(HTMLMediaElement*);
~LayoutMedia() override;
LayoutObject* FirstChild() const {
DCHECK_EQ(Children(), VirtualChildren());
return Children()->FirstChild();
}
LayoutObject* LastChild() const {
DCHECK_EQ(Children(), VirtualChildren());
return Children()->LastChild();
}
// If you have a LayoutMedia, use firstChild or lastChild instead.
void SlowFirstChild() const = delete;
void SlowLastChild() const = delete;
const LayoutObjectChildList* Children() const { return &children_; }
LayoutObjectChildList* Children() { return &children_; }
HTMLMediaElement* MediaElement() const;
const char* GetName() const override { return "LayoutMedia"; }
protected:
void UpdateLayout() override;
bool IsOfType(LayoutObjectType type) const override {
return type == kLayoutObjectMedia || LayoutImage::IsOfType(type);
}
private:
LayoutObjectChildList* VirtualChildren() final { return Children(); }
const LayoutObjectChildList* VirtualChildren() const final {
return Children();
}
PaintLayerType LayerTypeRequired() const override {
return kNormalPaintLayer;
}
bool CanHaveChildren() const final { return true; }
bool IsChildAllowed(LayoutObject*, const ComputedStyle&) const final;
bool IsImage() const final { return false; }
void PaintReplaced(const PaintInfo&, const LayoutPoint&) const override;
bool BackgroundShouldAlwaysBeClipped() const final { return false; }
LayoutUnit ComputePanelWidth(const LayoutRect& media_width) const;
LayoutObjectChildList children_;
};
DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutMedia, IsMedia());
} // namespace blink
#endif // LayoutMedia_h