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      1 /*
      2  * Copyright (C) 2011 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
      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 INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14  *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15  *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16  *  DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17  *  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18  *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19  *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20  *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23  *
     24  */
     25 
     26 #ifndef StyleGridData_h
     27 #define StyleGridData_h
     28 
     29 #include "core/rendering/style/GridCoordinate.h"
     30 #include "core/rendering/style/GridTrackSize.h"
     31 #include "core/rendering/style/RenderStyleConstants.h"
     32 #include "wtf/PassRefPtr.h"
     33 #include "wtf/RefCounted.h"
     34 #include "wtf/Vector.h"
     35 #include "wtf/text/WTFString.h"
     36 
     37 namespace blink {
     38 
     39 typedef HashMap<String, Vector<size_t> > NamedGridLinesMap;
     40 typedef HashMap<size_t, Vector<String>, WTF::IntHash<size_t>, WTF::UnsignedWithZeroKeyHashTraits<size_t> > OrderedNamedGridLines;
     41 
     42 class StyleGridData : public RefCounted<StyleGridData> {
     43 public:
     44     static PassRefPtr<StyleGridData> create() { return adoptRef(new StyleGridData); }
     45     PassRefPtr<StyleGridData> copy() const { return adoptRef(new StyleGridData(*this)); }
     46 
     47     bool operator==(const StyleGridData& o) const
     48     {
     49         return m_gridTemplateColumns == o.m_gridTemplateColumns && m_gridTemplateRows == o.m_gridTemplateRows && m_gridAutoFlow == o.m_gridAutoFlow && m_gridAutoRows == o.m_gridAutoRows && m_gridAutoColumns == o.m_gridAutoColumns && m_namedGridColumnLines == o.m_namedGridColumnLines && m_namedGridRowLines == o.m_namedGridRowLines && m_orderedNamedGridColumnLines == o.m_orderedNamedGridColumnLines && m_orderedNamedGridRowLines == o.m_orderedNamedGridRowLines && m_namedGridArea == o.m_namedGridArea && m_namedGridArea == o.m_namedGridArea && m_namedGridAreaRowCount == o.m_namedGridAreaRowCount && m_namedGridAreaColumnCount == o.m_namedGridAreaColumnCount;
     50     }
     51 
     52     bool operator!=(const StyleGridData& o) const
     53     {
     54         return !(*this == o);
     55     }
     56 
     57     Vector<GridTrackSize> m_gridTemplateColumns;
     58     Vector<GridTrackSize> m_gridTemplateRows;
     59 
     60     NamedGridLinesMap m_namedGridColumnLines;
     61     NamedGridLinesMap m_namedGridRowLines;
     62 
     63     // In order to reconstruct the original named grid line order, we can't rely on NamedGridLinesMap
     64     // as it loses the position if multiple grid lines are set on a single track.
     65     OrderedNamedGridLines m_orderedNamedGridColumnLines;
     66     OrderedNamedGridLines m_orderedNamedGridRowLines;
     67 
     68     unsigned m_gridAutoFlow : GridAutoFlowBits;
     69 
     70     GridTrackSize m_gridAutoRows;
     71     GridTrackSize m_gridAutoColumns;
     72 
     73     NamedGridAreaMap m_namedGridArea;
     74     // Because m_namedGridArea doesn't store the unnamed grid areas, we need to keep track
     75     // of the explicit grid size defined by both named and unnamed grid areas.
     76     size_t m_namedGridAreaRowCount;
     77     size_t m_namedGridAreaColumnCount;
     78 
     79 private:
     80     StyleGridData();
     81     StyleGridData(const StyleGridData&);
     82 };
     83 
     84 } // namespace blink
     85 
     86 #endif // StyleGridData_h
     87