Source/WebCore/page/Quirks.h

/*
 * Copyright (C) 2018-2019 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 <wtf/WeakPtr.h>

namespace WebCore {

class Document;
class HTMLElement;
class LayoutUnit;

class Quirks {
    WTF_MAKE_NONCOPYABLE(Quirks); WTF_MAKE_FAST_ALLOCATED;
public:
    Quirks(Document&);
    ~Quirks();

    bool shouldIgnoreInvalidSignal() const;
    WEBCORE_EXPORT bool shouldIgnoreShrinkToFitContent() const;
    WEBCORE_EXPORT Optional<LayoutUnit> overriddenViewLayoutWidth(LayoutUnit currentViewLayoutWidth) const;
    bool needsFormControlToBeMouseFocusable() const;
    bool needsAutoplayPlayPauseEvents() const;
    bool needsSeekingSupportDisabled() const;
    bool needsPerDocumentAutoplayBehavior() const;
    bool shouldAutoplayForArbitraryUserGesture() const;
    bool hasBrokenEncryptedMediaAPISupportQuirk() const;
    bool hasWebSQLSupportQuirk() const;
    bool shouldDispatchSimulatedMouseEvents() const;
    bool shouldDisablePointerEventsQuirk() const;
    bool needsInputModeNoneImplicitly(const HTMLElement&) const;

    WEBCORE_EXPORT bool shouldDispatchSyntheticMouseEventsWhenModifyingSelection() const;
    WEBCORE_EXPORT bool shouldSuppressAutocorrectionAndAutocaptializationInHiddenEditableAreas() const;
    WEBCORE_EXPORT bool shouldEmulateUndoRedoInHiddenEditableAreas() const;
    WEBCORE_EXPORT bool isTouchBarUpdateSupressedForHiddenContentEditable() const;
    WEBCORE_EXPORT bool isNeverRichlyEditableForTouchBar() const;

    bool needsGMailOverflowScrollQuirk() const;
    bool needsYouTubeOverflowScrollQuirk() const;

private:
    bool needsQuirks() const;

    WeakPtr<Document> m_document;

    mutable Optional<bool> m_hasBrokenEncryptedMediaAPISupportQuirk;
    mutable Optional<bool> m_hasWebSQLSupportQuirk;
#if PLATFORM(IOS_FAMILY)
    mutable Optional<bool> m_needsGMailOverflowScrollQuirk;
    mutable Optional<bool> m_needsYouTubeOverflowScrollQuirk;
#endif
};

}