| /* |
| * Copyright (C) 2012 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 GridTrackSize_h |
| #define GridTrackSize_h |
| |
| #include "core/rendering/style/GridLength.h" |
| |
| namespace blink { |
| |
| enum GridTrackSizeType { |
| LengthTrackSizing, |
| MinMaxTrackSizing |
| }; |
| |
| class GridTrackSize { |
| public: |
| GridTrackSize(const GridLength& length) |
| : m_type(LengthTrackSizing) |
| , m_minTrackBreadth(length) |
| , m_maxTrackBreadth(length) |
| , m_minTrackBreadthIsMinOrMaxContent(false) |
| , m_minTrackBreadthIsMaxContent(false) |
| , m_maxTrackBreadthIsMinOrMaxContent(false) |
| , m_maxTrackBreadthIsMaxContent(false) |
| { |
| cacheMinMaxTrackBreadthTypes(); |
| } |
| |
| GridTrackSize(const GridLength& minTrackBreadth, const GridLength& maxTrackBreadth) |
| : m_type(MinMaxTrackSizing) |
| , m_minTrackBreadth(minTrackBreadth) |
| , m_maxTrackBreadth(maxTrackBreadth) |
| , m_minTrackBreadthIsMinOrMaxContent(false) |
| , m_minTrackBreadthIsMaxContent(false) |
| , m_maxTrackBreadthIsMinOrMaxContent(false) |
| , m_maxTrackBreadthIsMaxContent(false) |
| { |
| cacheMinMaxTrackBreadthTypes(); |
| } |
| |
| const GridLength& length() const |
| { |
| ASSERT(m_type == LengthTrackSizing); |
| ASSERT(m_minTrackBreadth == m_maxTrackBreadth); |
| const GridLength& minTrackBreadth = m_minTrackBreadth; |
| return minTrackBreadth; |
| } |
| |
| const GridLength& minTrackBreadth() const |
| { |
| if (m_minTrackBreadth.isLength() && m_minTrackBreadth.length().isAuto()) { |
| DEFINE_STATIC_LOCAL(GridLength, minContent, (Length(MinContent))); |
| return minContent; |
| } |
| return m_minTrackBreadth; |
| } |
| |
| const GridLength& maxTrackBreadth() const |
| { |
| if (m_maxTrackBreadth.isLength() && m_maxTrackBreadth.length().isAuto()) { |
| DEFINE_STATIC_LOCAL(GridLength, maxContent, (Length(MaxContent))); |
| return maxContent; |
| } |
| return m_maxTrackBreadth; |
| } |
| |
| GridTrackSizeType type() const { return m_type; } |
| |
| bool isContentSized() const { return m_minTrackBreadth.isContentSized() || m_maxTrackBreadth.isContentSized(); } |
| |
| bool isPercentage() const { return m_type == LengthTrackSizing && length().isLength() && length().length().isPercent(); } |
| |
| bool operator==(const GridTrackSize& other) const |
| { |
| return m_type == other.m_type && m_minTrackBreadth == other.m_minTrackBreadth && m_maxTrackBreadth == other.m_maxTrackBreadth; |
| } |
| |
| void cacheMinMaxTrackBreadthTypes() |
| { |
| m_minTrackBreadthIsMaxContent = minTrackBreadth().isLength() && minTrackBreadth().length().isMaxContent(); |
| m_minTrackBreadthIsMinOrMaxContent = m_minTrackBreadthIsMaxContent || (minTrackBreadth().isLength() && minTrackBreadth().length().isMinContent()); |
| m_maxTrackBreadthIsMaxContent = maxTrackBreadth().isLength() && maxTrackBreadth().length().isMaxContent(); |
| m_maxTrackBreadthIsMinOrMaxContent = m_maxTrackBreadthIsMaxContent || (maxTrackBreadth().isLength() && maxTrackBreadth().length().isMinContent()); |
| } |
| |
| bool hasMinOrMaxContentMinTrackBreadth() const { return m_minTrackBreadthIsMinOrMaxContent; } |
| bool hasMaxContentMinTrackBreadth() const { return m_minTrackBreadthIsMaxContent; } |
| bool hasMinOrMaxContentMaxTrackBreadth() const { return m_maxTrackBreadthIsMinOrMaxContent; } |
| bool hasMaxContentMaxTrackBreadth() const { return m_maxTrackBreadthIsMaxContent; } |
| |
| private: |
| GridTrackSizeType m_type; |
| GridLength m_minTrackBreadth; |
| GridLength m_maxTrackBreadth; |
| bool m_minTrackBreadthIsMinOrMaxContent; |
| bool m_minTrackBreadthIsMaxContent; |
| bool m_maxTrackBreadthIsMinOrMaxContent; |
| bool m_maxTrackBreadthIsMaxContent; |
| }; |
| |
| } // namespace blink |
| |
| #endif // GridTrackSize_h |