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      1 /*
      2  * Copyright (C) 2007, 2008, 2012 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 #ifndef CSSTimingFunctionValue_h
     27 #define CSSTimingFunctionValue_h
     28 
     29 #include "core/css/CSSValue.h"
     30 #include "wtf/PassRefPtr.h"
     31 
     32 namespace WebCore {
     33 
     34 class CSSCubicBezierTimingFunctionValue : public CSSValue {
     35 public:
     36     static PassRefPtr<CSSCubicBezierTimingFunctionValue> create(double x1, double y1, double x2, double y2)
     37     {
     38         return adoptRef(new CSSCubicBezierTimingFunctionValue(x1, y1, x2, y2));
     39     }
     40 
     41     String customCSSText() const;
     42 
     43     double x1() const { return m_x1; }
     44     double y1() const { return m_y1; }
     45     double x2() const { return m_x2; }
     46     double y2() const { return m_y2; }
     47 
     48     bool equals(const CSSCubicBezierTimingFunctionValue&) const;
     49 
     50 private:
     51     CSSCubicBezierTimingFunctionValue(double x1, double y1, double x2, double y2)
     52         : CSSValue(CubicBezierTimingFunctionClass)
     53         , m_x1(x1)
     54         , m_y1(y1)
     55         , m_x2(x2)
     56         , m_y2(y2)
     57     {
     58     }
     59 
     60     double m_x1;
     61     double m_y1;
     62     double m_x2;
     63     double m_y2;
     64 };
     65 
     66 DEFINE_CSS_VALUE_TYPE_CASTS(CSSCubicBezierTimingFunctionValue, isCubicBezierTimingFunctionValue());
     67 
     68 class CSSStepsTimingFunctionValue : public CSSValue {
     69 public:
     70     static PassRefPtr<CSSStepsTimingFunctionValue> create(int steps, bool stepAtStart)
     71     {
     72         return adoptRef(new CSSStepsTimingFunctionValue(steps, stepAtStart));
     73     }
     74 
     75     int numberOfSteps() const { return m_steps; }
     76     bool stepAtStart() const { return m_stepAtStart; }
     77 
     78     String customCSSText() const;
     79 
     80     bool equals(const CSSStepsTimingFunctionValue&) const;
     81 
     82 private:
     83     CSSStepsTimingFunctionValue(int steps, bool stepAtStart)
     84         : CSSValue(StepsTimingFunctionClass)
     85         , m_steps(steps)
     86         , m_stepAtStart(stepAtStart)
     87     {
     88     }
     89 
     90     int m_steps;
     91     bool m_stepAtStart;
     92 };
     93 
     94 DEFINE_CSS_VALUE_TYPE_CASTS(CSSStepsTimingFunctionValue, isStepsTimingFunctionValue());
     95 
     96 } // namespace
     97 
     98 #endif
     99