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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/StringBuilder.h"
     30 
     31 namespace blink {
     32 
     33 CSSFilterValue::CSSFilterValue(FilterOperationType operationType)
     34     : CSSValueList(CSSFilterClass, CommaSeparator)
     35     , m_type(operationType)
     36 {
     37 }
     38 
     39 String CSSFilterValue::customCSSText() const
     40 {
     41     StringBuilder result;
     42     switch (m_type) {
     43     case ReferenceFilterOperation:
     44         result.appendLiteral("url(");
     45         break;
     46     case GrayscaleFilterOperation:
     47         result.appendLiteral("grayscale(");
     48         break;
     49     case SepiaFilterOperation:
     50         result.appendLiteral("sepia(");
     51         break;
     52     case SaturateFilterOperation:
     53         result.appendLiteral("saturate(");
     54         break;
     55     case HueRotateFilterOperation:
     56         result.appendLiteral("hue-rotate(");
     57         break;
     58     case InvertFilterOperation:
     59         result.appendLiteral("invert(");
     60         break;
     61     case OpacityFilterOperation:
     62         result.appendLiteral("opacity(");
     63         break;
     64     case BrightnessFilterOperation:
     65         result.appendLiteral("brightness(");
     66         break;
     67     case ContrastFilterOperation:
     68         result.appendLiteral("contrast(");
     69         break;
     70     case BlurFilterOperation:
     71         result.appendLiteral("blur(");
     72         break;
     73     case DropShadowFilterOperation:
     74         result.appendLiteral("drop-shadow(");
     75         break;
     76     default:
     77         break;
     78     }
     79 
     80     result.append(CSSValueList::customCSSText());
     81     result.append(')');
     82     return result.toString();
     83 }
     84 
     85 CSSFilterValue::CSSFilterValue(const CSSFilterValue& cloneFrom)
     86     : CSSValueList(cloneFrom)
     87     , m_type(cloneFrom.m_type)
     88 {
     89 }
     90 
     91 PassRefPtrWillBeRawPtr<CSSFilterValue> CSSFilterValue::cloneForCSSOM() const
     92 {
     93     return adoptRefWillBeNoop(new CSSFilterValue(*this));
     94 }
     95 
     96 bool CSSFilterValue::equals(const CSSFilterValue& other) const
     97 {
     98     return m_type == other.m_type && CSSValueList::equals(other);
     99 }
    100 
    101 }
    102 
    103