116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
/*
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* Copyright (C) 2014 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "DebugOverlayRegions.h"
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#include "Frame.h"
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#include <wtf/HashMap.h>
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#include <wtf/OptionSet.h>
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#include <wtf/Vector.h>
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namespace WebCore {
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class Page;
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class RegionOverlay;
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class DebugPageOverlays {
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public:
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static DebugPageOverlays& singleton();
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enum class RegionType {
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WheelEventHandlers,
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NonFastScrollableRegion,
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};
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static constexpr unsigned NumberOfRegionTypes = static_cast<unsigned>(RegionType::NonFastScrollableRegion) + 1;
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static void didLayout(Frame&);
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static void didChangeEventHandlers(Frame&);
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static void doAfterUpdateRendering(Page&);
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WEBCORE_EXPORT static void settingsChanged(Page&);
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private:
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static bool hasOverlays(Page&);
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void showRegionOverlay(Page&, RegionType);
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void hideRegionOverlay(Page&, RegionType);
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void updateRegionIfNecessary(Page&, RegionType);
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void regionChanged(Frame&, RegionType);
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bool hasOverlaysForPage(Page& page) const
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{
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return m_pageRegionOverlays.contains(&page);
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}
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void updateOverlayRegionVisibility(Page&, OptionSet<DebugOverlayRegions>);
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RegionOverlay* regionOverlayForPage(Page&, RegionType) const;
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RegionOverlay& ensureRegionOverlayForPage(Page&, RegionType);
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HashMap<Page*, Vector<RefPtr<RegionOverlay>>> m_pageRegionOverlays;
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static DebugPageOverlays* sharedDebugOverlays;
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};
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#define FAST_RETURN_IF_NO_OVERLAYS(page) if (LIKELY(!page || !hasOverlays(*page))) return;
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inline bool DebugPageOverlays::hasOverlays(Page& page)
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{
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if (!sharedDebugOverlays)
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return false;
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return sharedDebugOverlays->hasOverlaysForPage(page);
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}
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inline void DebugPageOverlays::didLayout(Frame& frame)
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{
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FAST_RETURN_IF_NO_OVERLAYS(frame.page());
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sharedDebugOverlays->regionChanged(frame, RegionType::WheelEventHandlers);
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sharedDebugOverlays->regionChanged(frame, RegionType::NonFastScrollableRegion);
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}
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inline void DebugPageOverlays::didChangeEventHandlers(Frame& frame)
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{
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FAST_RETURN_IF_NO_OVERLAYS(frame.page());
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sharedDebugOverlays->regionChanged(frame, RegionType::WheelEventHandlers);
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sharedDebugOverlays->regionChanged(frame, RegionType::NonFastScrollableRegion);
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}
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inline void DebugPageOverlays::doAfterUpdateRendering(Page& page)
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{
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if (LIKELY(!hasOverlays(page)))
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return;
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sharedDebugOverlays->updateRegionIfNecessary(page, RegionType::WheelEventHandlers);
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sharedDebugOverlays->updateRegionIfNecessary(page, RegionType::NonFastScrollableRegion);
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}
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} // namespace WebCore
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