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/*
* Copyright (C) 2014 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 "GraphicsLayer.h"
#include "GraphicsLayerClient.h"
#include "PageOverlay.h"
#include <wtf/RefPtr.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/Vector.h>
#include <wtf/WeakHashMap.h>
namespace WebCore {
class LocalFrame;
class Page;
class PlatformMouseEvent;
class PageOverlayController final : public GraphicsLayerClient {
WTF_MAKE_TZONE_ALLOCATED(PageOverlayController);
friend class MockPageOverlayClient;
public:
PageOverlayController(Page&);
virtual ~PageOverlayController();
bool hasDocumentOverlays() const;
bool hasViewOverlays() const;
GraphicsLayer& layerWithDocumentOverlays();
GraphicsLayer& layerWithViewOverlays();
Ref<GraphicsLayer> protectedLayerWithViewOverlays();
const Vector<RefPtr<PageOverlay>>& pageOverlays() const { return m_pageOverlays; }
WEBCORE_EXPORT void installPageOverlay(PageOverlay&, PageOverlay::FadeMode);
WEBCORE_EXPORT void uninstallPageOverlay(PageOverlay&, PageOverlay::FadeMode);
void setPageOverlayNeedsDisplay(PageOverlay&, const IntRect&);
void setPageOverlayOpacity(PageOverlay&, float);
void clearPageOverlay(PageOverlay&);
GraphicsLayer& layerForOverlay(PageOverlay&) const;
void didChangeViewSize();
void didChangeDocumentSize();
void didChangeSettings();
WEBCORE_EXPORT void didChangeDeviceScaleFactor();
void didChangeViewExposedRect();
void didScrollFrame(LocalFrame&);
void didChangeOverlayFrame(PageOverlay&);
void didChangeOverlayBackgroundColor(PageOverlay&);
int overlayCount() const { return m_overlayGraphicsLayers.computeSize(); }
bool handleMouseEvent(const PlatformMouseEvent&);
WEBCORE_EXPORT bool copyAccessibilityAttributeStringValueForPoint(String attribute, FloatPoint, String& value);
WEBCORE_EXPORT bool copyAccessibilityAttributeBoolValueForPoint(String attribute, FloatPoint, bool& value);
WEBCORE_EXPORT Vector<String> copyAccessibilityAttributesNames(bool parameterizedNames);
private:
void createRootLayersIfNeeded();
WEBCORE_EXPORT GraphicsLayer* documentOverlayRootLayer() const;
WEBCORE_EXPORT GraphicsLayer* viewOverlayRootLayer() const;
void installedPageOverlaysChanged();
void attachViewOverlayLayers();
void detachViewOverlayLayers();
void updateSettingsForLayer(GraphicsLayer&);
void updateForceSynchronousScrollLayerPositionUpdates();
// GraphicsLayerClient
void notifyFlushRequired(const GraphicsLayer*) override;
void paintContents(const GraphicsLayer*, GraphicsContext&, const FloatRect& clipRect, OptionSet<GraphicsLayerPaintBehavior>) override;
float deviceScaleFactor() const override;
bool shouldSkipLayerInDump(const GraphicsLayer*, OptionSet<LayerTreeAsTextOptions>) const override;
bool shouldDumpPropertyForLayer(const GraphicsLayer*, ASCIILiteral propertyName, OptionSet<LayerTreeAsTextOptions>) const override;
void tiledBackingUsageChanged(const GraphicsLayer*, bool) override;
Ref<Page> protectedPage() const;
WeakRef<Page> m_page;
RefPtr<GraphicsLayer> m_documentOverlayRootLayer;
RefPtr<GraphicsLayer> m_viewOverlayRootLayer;
WeakHashMap<PageOverlay, Ref<GraphicsLayer>> m_overlayGraphicsLayers;
Vector<RefPtr<PageOverlay>> m_pageOverlays;
bool m_initialized { false };
};
} // namespace WebKit
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