/*

 * This file is part of the DOM implementation for KDE.

 *

 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#ifndef AtomicString_h

#define AtomicString_h

#include "AtomicStringImpl.h"

#include "PlatformString.h"

namespace WebCore {

class AtomicString {

public:

    static void init();

    AtomicString() { }

    AtomicString(const char* s) : m_string(add(s)) { }

    AtomicString(const UChar* s, int length) : m_string(add(s, length)) { }

    AtomicString(const KJS::UString& s) : m_string(add(s)) { }

    AtomicString(const KJS::Identifier& s) : m_string(add(s)) { }

    AtomicString(StringImpl* imp) : m_string(add(imp)) { }

    AtomicString(AtomicStringImpl* imp) : m_string(imp) { }

    AtomicString(const String& s) : m_string(add(s.impl())) { }

    operator const String&() const { return m_string; }

    const String& domString() const { return m_string; };

    operator KJS::Identifier() const;

    operator KJS::UString() const;

    AtomicStringImpl* impl() const { return static_cast<AtomicStringImpl *>(m_string.impl()); }

    const UChar* characters() const { return m_string.characters(); }

    unsigned length() const { return m_string.length(); }

    UChar operator[](unsigned int i) const { return m_string[i]; }

    bool contains(UChar c) const { return m_string.contains(c); }

    bool contains(const AtomicString& s, bool caseSensitive = true) const

        { return m_string.contains(s.domString(), caseSensitive); }

    int find(UChar c, int start = 0) const { return m_string.find(c, start); }

    int find(const AtomicString& s, int start = 0, bool caseSentitive = true) const

        { return m_string.find(s.domString(), start, caseSentitive); }

    bool startsWith(const AtomicString& s, bool caseSensitive = true) const

        { return m_string.startsWith(s.domString(), caseSensitive); }

    bool endsWith(const AtomicString& s, bool caseSensitive = true) const

        { return m_string.endsWith(s.domString(), caseSensitive); }

    int toInt(bool* ok = 0) const { return m_string.toInt(ok); }

    double toDouble(bool* ok = 0) const { return m_string.toDouble(ok); }

    float toFloat(bool* ok = 0) const { return m_string.toFloat(ok); }

    bool percentage(int& p) const { return m_string.percentage(p); }

    Length* toLengthArray(int& len) const { return m_string.toLengthArray(len); }

    Length* toCoordsArray(int& len) const { return m_string.toCoordsArray(len); }

    bool isNull() const { return m_string.isNull(); }

    bool isEmpty() const { return m_string.isEmpty(); }

    static void remove(StringImpl*);

#ifdef __OBJC__

    AtomicString(NSString* s) : m_string(add(String(s).impl())) { }

    operator NSString*() const { return m_string; }

#endif

#if PLATFORM(SYMBIAN)

    AtomicString(const TDesC& s) : m_string(add(String(s).impl())) { }

    operator TPtrC() const { return m_string; }

#endif

#if PLATFORM(QT)

    AtomicString(const QString& s) : m_string(add(String(s).impl())) { }

    operator QString() const { return m_string; }

#endif

    AtomicString(const DeprecatedString&);

    DeprecatedString deprecatedString() const;

private:

    String m_string;

    static StringImpl* add(const char*);

    static StringImpl* add(const UChar*, int length);

    static StringImpl* add(StringImpl*);

    static StringImpl* add(const KJS::UString&);

    static StringImpl* add(const KJS::Identifier&);

};

inline bool operator==(const AtomicString& a, const AtomicString& b) { return a.impl() == b.impl(); }

bool operator==(const AtomicString& a, const char* b);

inline bool operator==(const AtomicString& a, const String& b) { return equal(a.impl(), b.impl()); }

inline bool operator==(const char* a, const AtomicString& b) { return b == a; }

inline bool operator==(const String& a, const AtomicString& b) { return equal(a.impl(), b.impl()); }

inline bool operator!=(const AtomicString& a, const AtomicString& b) { return a.impl() != b.impl(); }

inline bool operator!=(const AtomicString& a, const char *b) { return !(a == b); }

inline bool operator!=(const AtomicString& a, const String& b) { return !equal(a.impl(), b.impl()); }

inline bool operator!=(const char* a, const AtomicString& b) { return !(b == a); }

inline bool operator!=(const String& a, const AtomicString& b) { return !equal(a.impl(), b.impl()); }

inline bool equalIgnoringCase(const AtomicString& a, const AtomicString& b) { return equalIgnoringCase(a.impl(), b.impl()); }

inline bool equalIgnoringCase(const AtomicString& a, const char* b) { return equalIgnoringCase(a.impl(), b); }

inline bool equalIgnoringCase(const AtomicString& a, const String& b) { return equalIgnoringCase(a.impl(), b.impl()); }

inline bool equalIgnoringCase(const char* a, const AtomicString& b) { return equalIgnoringCase(a, b.impl()); }

inline bool equalIgnoringCase(const String& a, const AtomicString& b) { return equalIgnoringCase(a.impl(), b.impl()); }

// Define external global variables for the commonly used atomic strings.

#ifndef ATOMICSTRING_HIDE_GLOBALS

    extern const AtomicString nullAtom;

    extern const AtomicString emptyAtom;

    extern const AtomicString textAtom;

    extern const AtomicString commentAtom;

    extern const AtomicString starAtom;

#endif

} // namespace WebCore

#endif // AtomicString_h