Imported WebKit commit fce473cb4d55aa9fe9d0b0322a2fffecb731b961 (http://svn.webkit.org/repository/webkit/trunk@106560)

1 files changed, 99 insertions, 0 deletions

diff --git a/Source/WebCore/css/CSSCalculationValue.h b/Source/WebCore/css/CSSCalculationValue.h
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+/*
+ * Copyright (C) 2011 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.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * 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
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef CSSCalculationValue_h
+#define CSSCalculationValue_h
+
+#include "CSSParserValues.h"
+#include "CSSValue.h"
+#include "CalculationValue.h"
+#include <wtf/PassOwnPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+
+class CSSParserValueList;
+class CSSValueList;
+class RenderStyle;
+class CalcValue;
+class CalcExpressionNode;
+
+enum CalculationCategory {
+    CalcNumber = 0,
+    CalcLength,
+    CalcPercent,
+    CalcPercentNumber,
+    CalcPercentLength,
+    CalcOther
+};
+    
+class CSSCalcExpressionNode : public RefCounted<CSSCalcExpressionNode> {
+public:
+    
+    virtual ~CSSCalcExpressionNode() = 0;    
+    
+    CalculationCategory category() const { return m_category; }    
+    bool isInteger() const { return m_isInteger; }
+    bool isZero() const { return false; }
+    
+protected:
+    CSSCalcExpressionNode(CalculationCategory category, bool isInteger)
+        : m_category(category)
+        , m_isInteger(isInteger)
+    {
+    }
+    
+    CalculationCategory m_category;
+    bool m_isInteger;
+};
+        
+class CSSCalcValue : public CSSValue {
+public:
+    static PassRefPtr<CSSCalcValue> create(CSSParserString name, CSSParserValueList*);
+
+    CalculationCategory category() const { return m_expression->category(); }
+    bool isInt() const { return m_expression->isInteger(); }
+        
+    String customCssText() const;
+    
+private:    
+    CSSCalcValue(PassRefPtr<CSSCalcExpressionNode> expression)
+        : CSSValue(CalculationClass)
+        , m_expression(expression)
+    {
+    }
+    
+    const RefPtr<CSSCalcExpressionNode> m_expression;
+};
+    
+} // namespace WebCore
+
+#endif // CSSCalculationValue_h