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/*
* Copyright (C) 2013 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.
*/
#ifndef ViewGestureGeometryCollector_h
#define ViewGestureGeometryCollector_h
#include "MessageReceiver.h"
#include <WebCore/PageIdentifier.h>
#include <wtf/RefCounted.h>
#include <wtf/RunLoop.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakRef.h>
namespace WebCore {
class FloatPoint;
class FloatRect;
class Node;
}
namespace WebKit {
class WebPage;
class ViewGestureGeometryCollector : private IPC::MessageReceiver, public RefCounted<ViewGestureGeometryCollector> {
WTF_MAKE_TZONE_ALLOCATED(ViewGestureGeometryCollector);
public:
static Ref<ViewGestureGeometryCollector> create(WebPage& webPage)
{
return adoptRef(*new ViewGestureGeometryCollector(webPage));
}
~ViewGestureGeometryCollector();
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
void mainFrameDidLayout();
void computeZoomInformationForNode(WebCore::Node&, WebCore::FloatPoint& origin, WebCore::FloatRect& absoluteBoundingRect, bool& isReplaced, double& viewportMinimumScale, double& viewportMaximumScale);
private:
explicit ViewGestureGeometryCollector(WebPage&);
// IPC::MessageReceiver.
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
// Message handlers.
void collectGeometryForSmartMagnificationGesture(WebCore::FloatPoint gestureLocationInViewCoordinates);
#if !PLATFORM(IOS_FAMILY)
void collectGeometryForMagnificationGesture();
void setRenderTreeSizeNotificationThreshold(uint64_t);
void sendDidHitRenderTreeSizeThresholdIfNeeded();
#endif
void dispatchDidCollectGeometryForSmartMagnificationGesture(WebCore::FloatPoint origin, WebCore::FloatRect absoluteTargetRect, WebCore::FloatRect visibleContentRect, bool fitEntireRect, double viewportMinimumScale, double viewportMaximumScale);
void computeMinimumAndMaximumViewportScales(double& viewportMinimumScale, double& viewportMaximumScale) const;
#if PLATFORM(IOS_FAMILY)
std::optional<std::pair<double, double>> computeTextLegibilityScales(double& viewportMinimumScale, double& viewportMaximumScale);
#endif
WeakPtr<WebPage> m_webPage;
WebCore::PageIdentifier m_webPageIdentifier;
#if !PLATFORM(IOS_FAMILY)
uint64_t m_renderTreeSizeNotificationThreshold;
#else
std::optional<std::pair<double, double>> m_cachedTextLegibilityScales;
#endif
};
} // namespace WebKit
#endif // ViewGestureGeometryCollector
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