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/*
* Copyright (C) 2023 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 INC. AND ITS CONTRIBUTORS ``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 ITS 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(ACCESSIBILITY_ISOLATED_TREE)
#include "AccessibilityObjectInterface.h"
#include "IntRectHash.h"
#include <wtf/Lock.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class AXObjectCache;
class AXGeometryManager : public ThreadSafeRefCounted<AXGeometryManager> {
WTF_MAKE_NONCOPYABLE(AXGeometryManager);
WTF_MAKE_FAST_ALLOCATED;
public:
explicit AXGeometryManager(AXObjectCache&);
AXGeometryManager();
static Ref<AXGeometryManager> create(AXObjectCache& cache)
{
return adoptRef(*new AXGeometryManager(cache));
}
~AXGeometryManager();
void willUpdateObjectRegions();
void scheduleObjectRegionsUpdate(bool /* scheduleImmediately */);
void cacheRect(AXID, IntRect&&);
// std::nullopt if there is no cached rect for the given ID (i.e. because it hasn't been cached yet via paint or otherwise, or cannot be painted / cached at all).
std::optional<IntRect> cachedRectForID(AXID);
void remove(AXID axID) { m_cachedRects.remove(axID); }
#if PLATFORM(MAC)
void initializePrimaryScreenRect();
FloatRect primaryScreenRect();
#endif
private:
void updateObjectRegionsTimerFired() { scheduleRenderingUpdate(); }
void scheduleRenderingUpdate();
// The cache that owns this instance.
WeakPtr<AXObjectCache> m_cache;
HashMap<AXID, IntRect> m_cachedRects;
Timer m_updateObjectRegionsTimer;
#if PLATFORM(MAC)
FloatRect m_primaryScreenRect WTF_GUARDED_BY_LOCK(m_lock);
Lock m_lock;
#endif
};
} // namespace WebCore
#endif // ENABLE(ACCESSIBILITY_ISOLATED_TREE)
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