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/*
* Copyright (C) 2006 Apple Inc.
* Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#pragma once
#include "HitTestSource.h"
#include <wtf/Assertions.h>
#include <wtf/OptionSet.h>
namespace WebCore {
class HitTestRequest {
public:
enum class Type {
ReadOnly = 1 << 0,
Active = 1 << 1,
Move = 1 << 2,
Release = 1 << 3,
IgnoreCSSPointerEventsProperty = 1 << 4,
IgnoreClipping = 1 << 5,
SVGClipContent = 1 << 6,
TouchEvent = 1 << 7,
DisallowUserAgentShadowContent = 1 << 8,
DisallowUserAgentShadowContentExceptForImageOverlays = 1 << 9,
AllowFrameScrollbars = 1 << 10,
AllowChildFrameContent = 1 << 11,
AllowVisibleChildFrameContentOnly = 1 << 12,
ChildFrameHitTest = 1 << 13,
AccessibilityHitTest = 1 << 14,
// Collect a list of nodes instead of just one. Used for elementsFromPoint and rect-based tests.
CollectMultipleElements = 1 << 15,
// When using list-based testing, continue hit testing even after a hit has been found.
IncludeAllElementsUnderPoint = 1 << 16,
PenEvent = 1 << 17,
};
static constexpr OptionSet defaultTypes = { Type::ReadOnly, Type::Active, Type::DisallowUserAgentShadowContent };
static inline void assertConsistentType(OptionSet<Type> type)
{
#if ASSERT_ENABLED
ASSERT(!type.containsAll({ Type::DisallowUserAgentShadowContentExceptForImageOverlays, Type::DisallowUserAgentShadowContent }));
ASSERT_IMPLIES(type.contains(Type::IncludeAllElementsUnderPoint), type.contains(Type::CollectMultipleElements));
#else
UNUSED_PARAM(type);
#endif
}
HitTestRequest(HitTestSource source, OptionSet<Type> type = defaultTypes)
: m_type { type }
, m_source { source }
{
assertConsistentType(type);
}
// FIXME: This constructor should be phased out in favor of the `HitTestSource` version above, such that all call sites must
// consider whether the hit test request is user-triggered or bindings-triggered.
HitTestRequest(OptionSet<Type> type = defaultTypes)
: m_type { type }
{
assertConsistentType(type);
}
bool readOnly() const { return m_type.contains(Type::ReadOnly); }
bool active() const { return m_type.contains(Type::Active); }
bool move() const { return m_type.contains(Type::Move); }
bool release() const { return m_type.contains(Type::Release); }
bool ignoreCSSPointerEventsProperty() const { return m_type.contains(Type::IgnoreCSSPointerEventsProperty); }
bool ignoreClipping() const { return m_type.contains(Type::IgnoreClipping); }
bool svgClipContent() const { return m_type.contains(Type::SVGClipContent); }
bool touchEvent() const { return m_type.contains(Type::TouchEvent); }
bool mouseEvent() const { return !touchEvent() && !penEvent(); }
bool penEvent() const { return m_type.contains(Type::PenEvent); }
bool disallowsUserAgentShadowContent() const { return m_type.contains(Type::DisallowUserAgentShadowContent); }
bool disallowsUserAgentShadowContentExceptForImageOverlays() const { return m_type.contains(Type::DisallowUserAgentShadowContentExceptForImageOverlays); }
bool allowsFrameScrollbars() const { return m_type.contains(Type::AllowFrameScrollbars); }
bool allowsChildFrameContent() const { return m_type.contains(Type::AllowChildFrameContent); }
bool allowsVisibleChildFrameContent() const { return m_type.contains(Type::AllowVisibleChildFrameContentOnly); }
bool allowsAnyFrameContent() const { return allowsChildFrameContent() || allowsVisibleChildFrameContent(); }
bool isChildFrameHitTest() const { return m_type.contains(Type::ChildFrameHitTest); }
bool resultIsElementList() const { return m_type.contains(Type::CollectMultipleElements); }
bool includesAllElementsUnderPoint() const { return m_type.contains(Type::IncludeAllElementsUnderPoint); }
bool userTriggered() const { return m_source == HitTestSource::User; }
// Convenience functions
bool touchMove() const { return move() && touchEvent(); }
bool touchRelease() const { return release() && touchEvent(); }
OptionSet<Type> type() const { return m_type; }
private:
OptionSet<Type> m_type;
HitTestSource m_source { HitTestSource::User };
};
} // namespace WebCore
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