// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef WebSelection_h
#define WebSelection_h

#include "../platform/WebCommon.h"
#include "../platform/WebSelectionBound.h"

namespace blink {

struct CompositedSelection;

// The active selection region, containing compositing data for the selection
// end points as well as metadata for the selection region.
class BLINK_EXPORT WebSelection {
public:
    enum SelectionType { NoSelection, CaretSelection, RangeSelection };

#if INSIDE_BLINK
    explicit WebSelection(const CompositedSelection&);
#endif
    WebSelection(const WebSelection&);

    const WebSelectionBound& start() const { return m_start; }
    const WebSelectionBound& end() const { return m_end; }

    bool isNone() const { return selectionType() == NoSelection; }
    bool isCaret() const { return selectionType() == CaretSelection; }
    bool isRange() const { return selectionType() == RangeSelection; }

    bool isEditable() const { return m_isEditable; }
    bool isEmptyTextFormControl() const { return m_isEmptyTextFormControl; }

private:
    SelectionType selectionType() const { return m_selectionType; }

    SelectionType m_selectionType;

    WebSelectionBound m_start;
    WebSelectionBound m_end;

    // Whether the selection region consists of editable text.
    bool m_isEditable;

    // Whether the selection resides in an empty text form control. Note that
    // this only applies to caret-type selections.
    bool m_isEmptyTextFormControl;
};

} // namespace blink

#endif // WebSelection_h