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/*
* Copyright (C) 2011 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SUBSTRING_UTIL_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SUBSTRING_UTIL_H_
#include <CoreFoundation/CoreFoundation.h>
#include <cstddef>
#include "base/apple/scoped_cftyperef.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/wtf/wtf_size_t.h"
namespace gfx {
class Point;
} // namespace gfx
namespace blink {
class WebFrameWidgetImpl;
class LocalFrame;
class SubstringUtil {
public:
// Given a point inside a `WebFrameWidgetImpl`, determines the word underneath
// that point and returns:
//
// - a `CFAttributedStringRef` of that word and
// - the left baseline point of that word in `baseline_point`
//
// Returns nil on failure.
CORE_EXPORT static base::apple::ScopedCFTypeRef<CFAttributedStringRef>
AttributedWordAtPoint(WebFrameWidgetImpl*,
gfx::Point,
gfx::Point& baseline_point);
// Given a range of a `LocalFrame`, determines the substring specified by that
// range and returns:
//
// - a `CFAttributedStringRef` of that substring and
// - the left baseline point of that substring in `baseline_point`
//
// Returns nil on failure.
CORE_EXPORT static base::apple::ScopedCFTypeRef<CFAttributedStringRef>
AttributedSubstringInRange(LocalFrame*,
wtf_size_t location,
wtf_size_t length,
gfx::Point& baseline_point);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_SUBSTRING_UTIL_H_
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