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      1 /*
      2  * Copyright (c) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #ifdef SKIP_STATIC_CONSTRUCTORS_ON_GCC
     34 #define CSSPROPERTYSOURCEDATA_HIDE_GLOBALS 1
     35 #endif
     36 
     37 #include "CSSPropertySourceData.h"
     38 
     39 #include "PlatformString.h"
     40 #include <wtf/StaticConstructors.h>
     41 #include <wtf/text/StringHash.h>
     42 
     43 namespace WebCore {
     44 
     45 SourceRange::SourceRange()
     46     : start(0)
     47     , end(0)
     48 {
     49 }
     50 
     51 SourceRange::SourceRange(unsigned start, unsigned end)
     52     : start(start)
     53     , end(end)
     54 {
     55 }
     56 
     57 CSSPropertySourceData::CSSPropertySourceData(const String& name, const String& value, bool important, bool parsedOk, const SourceRange& range)
     58     : name(name)
     59     , value(value)
     60     , important(important)
     61     , parsedOk(parsedOk)
     62     , range(range)
     63 {
     64 }
     65 
     66 CSSPropertySourceData::CSSPropertySourceData(const CSSPropertySourceData& other)
     67     : name(other.name)
     68     , value(other.value)
     69     , important(other.important)
     70     , parsedOk(other.parsedOk)
     71     , range(other.range)
     72 {
     73 }
     74 
     75 CSSPropertySourceData::CSSPropertySourceData()
     76     : name("")
     77     , value("")
     78     , important(false)
     79     , parsedOk(false)
     80     , range(SourceRange(0, 0))
     81 {
     82 }
     83 
     84 String CSSPropertySourceData::toString() const
     85 {
     86     DEFINE_STATIC_LOCAL(String, emptyValue, ("e"));
     87     DEFINE_STATIC_LOCAL(String, importantSuffix, (" !important"));
     88     if (!name && value == emptyValue)
     89         return String();
     90 
     91     String result = name;
     92     result += ": ";
     93     result += value;
     94     if (important)
     95         result += importantSuffix;
     96     result += ";";
     97     return result;
     98 }
     99 
    100 unsigned CSSPropertySourceData::hash() const
    101 {
    102     return StringHash::hash(name) + 3 * StringHash::hash(value) + 7 * important + 13 * parsedOk + 31;
    103 }
    104 
    105 // Global init routines
    106 DEFINE_GLOBAL(CSSPropertySourceData, emptyCSSPropertySourceData, "", "e", false, false)
    107 
    108 // static
    109 void CSSPropertySourceData::init()
    110 {
    111     static bool initialized;
    112     if (!initialized) {
    113         new ((void *) &emptyCSSPropertySourceData) CSSPropertySourceData("", "e", false, false, SourceRange(0, 0));
    114         initialized = true;
    115     }
    116 }
    117 
    118 } // namespace WebCore
    119