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      1 /*
      2  * Copyright (C) 2011 Apple 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
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "core/css/CSSFilterValue.h"
     28 
     29 #include "wtf/text/WTFString.h"
     30 
     31 namespace WebCore {
     32 
     33 CSSFilterValue::CSSFilterValue(FilterOperationType operationType)
     34     : CSSValueList(CSSFilterClass, typeUsesSpaceSeparator(operationType) ? SpaceSeparator : CommaSeparator)
     35     , m_type(operationType)
     36 {
     37 }
     38 
     39 bool CSSFilterValue::typeUsesSpaceSeparator(FilterOperationType operationType)
     40 {
     41     return operationType != CustomFilterOperation;
     42 }
     43 
     44 String CSSFilterValue::customCSSText() const
     45 {
     46     String result;
     47     switch (m_type) {
     48     case ReferenceFilterOperation:
     49         result = "url(";
     50         break;
     51     case GrayscaleFilterOperation:
     52         result = "grayscale(";
     53         break;
     54     case SepiaFilterOperation:
     55         result = "sepia(";
     56         break;
     57     case SaturateFilterOperation:
     58         result = "saturate(";
     59         break;
     60     case HueRotateFilterOperation:
     61         result = "hue-rotate(";
     62         break;
     63     case InvertFilterOperation:
     64         result = "invert(";
     65         break;
     66     case OpacityFilterOperation:
     67         result = "opacity(";
     68         break;
     69     case BrightnessFilterOperation:
     70         result = "brightness(";
     71         break;
     72     case ContrastFilterOperation:
     73         result = "contrast(";
     74         break;
     75     case BlurFilterOperation:
     76         result = "blur(";
     77         break;
     78     case DropShadowFilterOperation:
     79         result = "drop-shadow(";
     80         break;
     81     case CustomFilterOperation:
     82         result = "custom(";
     83         break;
     84     default:
     85         break;
     86     }
     87 
     88     return result + CSSValueList::customCSSText() + ")";
     89 }
     90 
     91 CSSFilterValue::CSSFilterValue(const CSSFilterValue& cloneFrom)
     92     : CSSValueList(cloneFrom)
     93     , m_type(cloneFrom.m_type)
     94 {
     95 }
     96 
     97 PassRefPtr<CSSFilterValue> CSSFilterValue::cloneForCSSOM() const
     98 {
     99     return adoptRef(new CSSFilterValue(*this));
    100 }
    101 
    102 bool CSSFilterValue::equals(const CSSFilterValue& other) const
    103 {
    104     return m_type == other.m_type && CSSValueList::equals(other);
    105 }
    106 
    107 }
    108 
    109