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/*
* Copyright (C) 2021 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
#include "Color.h"
#include "LayoutRect.h"
#include "PageOverlay.h"
#include <wtf/OptionSet.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/Vector.h>
#include <wtf/WeakPtr.h>
#if PLATFORM(MAC)
#include "DataDetectorHighlight.h"
#endif
namespace WebCore {
class Document;
class Element;
class GraphicsContext;
class GraphicsLayer;
class GraphicsLayerClient;
class HTMLElement;
class IntRect;
class FloatQuad;
class LocalFrame;
class Page;
class RenderElement;
class WeakPtrImplWithEventTargetData;
enum class RenderingUpdateStep : uint32_t;
struct GapRects;
class ImageOverlayController final : private PageOverlayClient
#if PLATFORM(MAC)
, DataDetectorHighlightClient
#endif
{
WTF_MAKE_TZONE_ALLOCATED(ImageOverlayController);
public:
explicit ImageOverlayController(Page&);
void selectionQuadsDidChange(LocalFrame&, const Vector<FloatQuad>&);
void elementUnderMouseDidChange(LocalFrame&, Element*);
#if PLATFORM(MAC)
// DataDetectorHighlightClient.
void ref() const final;
void deref() const final;
#else
void ref() const;
void deref() const;
#endif
#if ENABLE(DATA_DETECTION)
WEBCORE_EXPORT bool hasActiveDataDetectorHighlightForTesting() const;
void textRecognitionResultsChanged(HTMLElement&);
#endif
void documentDetached(const Document&);
private:
void willMoveToPage(PageOverlay&, Page*) final;
void didMoveToPage(PageOverlay&, Page*) final { }
void drawRect(PageOverlay&, GraphicsContext&, const IntRect& dirtyRect) final;
bool mouseEvent(PageOverlay&, const PlatformMouseEvent& event) final { return platformHandleMouseEvent(event); }
bool shouldUsePageOverlayToPaintSelection(const RenderElement&);
PageOverlay& installPageOverlayIfNeeded();
void uninstallPageOverlayIfNeeded();
void uninstallPageOverlay();
#if PLATFORM(MAC)
void updateDataDetectorHighlights(const HTMLElement&);
void clearDataDetectorHighlights();
bool handleDataDetectorAction(const HTMLElement&, const IntPoint&);
// DataDetectorHighlightClient
#if ENABLE(DATA_DETECTION)
DataDetectorHighlight* activeHighlight() const final { return m_activeDataDetectorHighlight.get(); }
void scheduleRenderingUpdate(OptionSet<RenderingUpdateStep>) final;
float deviceScaleFactor() const final;
RefPtr<GraphicsLayer> createGraphicsLayer(GraphicsLayerClient&) final;
#endif
#endif
void platformUpdateElementUnderMouse(LocalFrame&, Element* elementUnderMouse);
bool platformHandleMouseEvent(const PlatformMouseEvent&);
Ref<Page> protectedPage() const;
RefPtr<PageOverlay> protectedOverlay() const { return m_overlay; }
WeakRef<Page> m_page;
RefPtr<PageOverlay> m_overlay;
WeakPtr<HTMLElement, WeakPtrImplWithEventTargetData> m_hostElementForSelection;
Vector<FloatQuad> m_selectionQuads;
LayoutRect m_selectionClipRect;
Color m_selectionBackgroundColor { Color::transparentBlack };
#if PLATFORM(MAC)
using ContainerAndHighlight = std::pair<WeakPtr<HTMLElement, WeakPtrImplWithEventTargetData>, Ref<DataDetectorHighlight>>;
Vector<ContainerAndHighlight> m_dataDetectorContainersAndHighlights;
RefPtr<DataDetectorHighlight> m_activeDataDetectorHighlight;
WeakPtr<HTMLElement, WeakPtrImplWithEventTargetData> m_hostElementForDataDetectors;
#endif
};
} // namespace WebCore
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