Source/WebCore/rendering/CaretRectComputation.h

/*
 * Copyright (C) 2020 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 "InlineRunAndOffset.h"
#include "RenderObjectEnums.h"

#if HAVE(REDESIGNED_TEXT_CURSOR)
#include <pal/spi/cocoa/FeatureFlagsSPI.h>
#endif

namespace WebCore {

enum class CaretRectMode : bool {
    Normal,
    ExpandToEndOfLine
};

int caretWidth();

LayoutRect computeLocalCaretRect(const RenderObject&, const InlineBoxAndOffset&, CaretRectMode = CaretRectMode::Normal);

// FIXME: Remove this feature flag check when possible (rdar://110802729).
#if HAVE(REDESIGNED_TEXT_CURSOR)
static inline bool redesignedTextCursorEnabled()
{
    static bool enabled;
    static std::once_flag flag;
    std::call_once(flag, [] {
        enabled = os_feature_enabled(UIKit, redesigned_text_cursor);
    });
    return enabled;
}
#endif

};