xref: /external/webkit/Source/WebCore/css/CSSPropertySourceData.cpp

/*
 * Copyright (c) 2010 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.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * 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
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#include "config.h"

#ifdef SKIP_STATIC_CONSTRUCTORS_ON_GCC
#define CSSPROPERTYSOURCEDATA_HIDE_GLOBALS 1
#endif

#include "CSSPropertySourceData.h"

#include "PlatformString.h"
#include <wtf/StaticConstructors.h>
#include <wtf/text/StringHash.h>

namespace WebCore {

SourceRange::SourceRange()
    : start(0)
    , end(0)
{
}

SourceRange::SourceRange(unsigned start, unsigned end)
    : start(start)
    , end(end)
{
}

CSSPropertySourceData::CSSPropertySourceData(const String& name, const String& value, bool important, bool parsedOk, const SourceRange& range)
    : name(name)
    , value(value)
    , important(important)
    , parsedOk(parsedOk)
    , range(range)
{
}

CSSPropertySourceData::CSSPropertySourceData(const CSSPropertySourceData& other)
    : name(other.name)
    , value(other.value)
    , important(other.important)
    , parsedOk(other.parsedOk)
    , range(other.range)
{
}

CSSPropertySourceData::CSSPropertySourceData()
    : name("")
    , value("")
    , important(false)
    , parsedOk(false)
    , range(SourceRange(0, 0))
{
}

String CSSPropertySourceData::toString() const
{
    DEFINE_STATIC_LOCAL(String, emptyValue, ("e"));
    DEFINE_STATIC_LOCAL(String, importantSuffix, (" !important"));
    if (!name && value == emptyValue)
        return String();

    String result = name;
    result += ": ";
    result += value;
    if (important)
        result += importantSuffix;
    result += ";";
    return result;
}

unsigned CSSPropertySourceData::hash() const
{
    return StringHash::hash(name) + 3 * StringHash::hash(value) + 7 * important + 13 * parsedOk + 31;
}

// Global init routines
DEFINE_GLOBAL(CSSPropertySourceData, emptyCSSPropertySourceData, "", "e", false, false)

// static
void CSSPropertySourceData::init()
{
    static bool initialized;
    if (!initialized) {
        new ((void *) &emptyCSSPropertySourceData) CSSPropertySourceData("", "e", false, false, SourceRange(0, 0));
        initialized = true;
    }
}

} // namespace WebCore