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/*
* Copyright (C) 2012 Victor Carbune (victor@rosedu.org)
*
* 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 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 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.
*/
#pragma once
#if ENABLE(VIDEO)
#include "FloatPoint.h"
#include "InlineIteratorInlineBox.h"
#include "RenderBlockFlow.h"
namespace WebCore {
class RenderBox;
class VTTCue;
class VTTCueBox;
class RenderVTTCue final : public RenderBlockFlow {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(RenderVTTCue);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(RenderVTTCue);
public:
RenderVTTCue(VTTCueBox&, RenderStyle&&);
virtual ~RenderVTTCue();
private:
void layout() override;
bool isOutside() const;
bool rectIsWithinContainer(const IntRect&) const;
bool isOverlapping() const;
RenderVTTCue* overlappingObject() const;
RenderVTTCue* overlappingObjectForRect(const IntRect&) const;
bool shouldSwitchDirection(const InlineIterator::InlineBox&, LayoutUnit) const;
void moveBoxesByStep(LayoutUnit);
bool switchDirection(bool&, LayoutUnit&);
void moveIfNecessaryToKeepWithinContainer();
bool findNonOverlappingPosition(int& x, int& y) const;
bool initializeLayoutParameters(LayoutUnit&, LayoutUnit&);
void placeBoxInDefaultPosition(LayoutUnit, bool&);
void repositionCueSnapToLinesSet();
void repositionCueSnapToLinesNotSet();
void repositionGenericCue();
RenderBlockFlow* backdropBox() const;
RenderInline* cueBox() const;
VTTCue* m_cue;
FloatPoint m_fallbackPosition;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderVTTCue, isRenderVTTCue())
#endif // ENABLE(VIDEO)
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