[CSS Grid Layout] Support calc() breadth track size

Source/core/css/CSSComputedStyleDeclaration.cpp

 /*
  * Copyright (C) 2004 Zack Rusin <zack@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2011 Sencha, Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ skipping 979 matching lines @@
         default:
             filterValue = CSSFilterValue::create(CSSFilterValue::UnknownFilterOperation);
             break;
         }
         list->append(filterValue.release());
     }
 
     return list.release();
 }
 
-static PassRefPtr<CSSValue> valueForGridTrackBreadth(const GridLength& trackBreadth, const RenderStyle* style, RenderView* renderView)
+static PassRefPtr<CSSValue> valueForGridTrackBreadth(const GridLength& trackBreadth, const RenderStyle* style, const LayoutUnit& maxSize, RenderView* renderView)
 {
+    // FIXME: according to the specs we must always return the used value http://crbug.com/297158
     if (!trackBreadth.isLength())
         return cssValuePool().createValue(trackBreadth.flex(), CSSPrimitiveValue::CSS_FR);
 
     const Length& trackBreadthLength = trackBreadth.length();
     if (trackBreadthLength.isAuto())
         return cssValuePool().createIdentifierValue(CSSValueAuto);
     if (trackBreadthLength.isViewportPercentage())
         return zoomAdjustedPixelValue(valueForLength(trackBreadthLength, 0, renderView), style);
+    if (trackBreadthLength.isCalculated())
+        return zoomAdjustedPixelValue(valueForLength(trackBreadthLength, maxSize, renderView), style);
     return zoomAdjustedPixelValueForLength(trackBreadthLength, style);
 }
 
-static PassRefPtr<CSSValue> valueForGridTrackSize(const GridTrackSize& trackSize, const RenderStyle* style, RenderView* renderView)
+static PassRefPtr<CSSValue> valueForGridTrackSize(const GridTrackSize& trackSize, const RenderStyle* style, const LayoutUnit& maxSize, RenderView* renderView)
 {
     switch (trackSize.type()) {
     case LengthTrackSizing:
-        return valueForGridTrackBreadth(trackSize.length(), style, renderView);
+        return valueForGridTrackBreadth(trackSize.length(), style, maxSize, renderView);
     case MinMaxTrackSizing:
         RefPtr<CSSValueList> minMaxTrackBreadths = CSSValueList::createCommaSeparated();
-        minMaxTrackBreadths->append(valueForGridTrackBreadth(trackSize.minTrackBreadth(), style, renderView));
-        minMaxTrackBreadths->append(valueForGridTrackBreadth(trackSize.maxTrackBreadth(), style, renderView));
+        minMaxTrackBreadths->append(valueForGridTrackBreadth(trackSize.minTrackBreadth(), style, maxSize, renderView));
+        minMaxTrackBreadths->append(valueForGridTrackBreadth(trackSize.maxTrackBreadth(), style, maxSize, renderView));
         return CSSFunctionValue::create("minmax(", minMaxTrackBreadths);
     }
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 static void addValuesForNamedGridLinesAtIndex(const OrderedNamedGridLines& orderedNamedGridLines, size_t i, CSSValueList& list)
 {
     const Vector<String>& namedGridLines = orderedNamedGridLines.get(i);
     for (size_t j = 0; j < namedGridLines.size(); ++j)
         list.append(cssValuePool().createValue(namedGridLines[j], CSSPrimitiveValue::CSS_STRING));
 }
 
-static PassRefPtr<CSSValue> valueForGridTrackList(const Vector<GridTrackSize>& trackSizes, const OrderedNamedGridLines& orderedNamedGridLines, const RenderStyle* style, RenderView* renderView)
+static PassRefPtr<CSSValue> valueForGridTrackList(const Vector<GridTrackSize>& trackSizes, const OrderedNamedGridLines& orderedNamedGridLines, const RenderStyle* style, const LayoutUnit& maxSize, RenderView* renderView)
 {
     // Handle the 'none' case here.
     if (!trackSizes.size()) {
         ASSERT(orderedNamedGridLines.isEmpty());
         return cssValuePool().createIdentifierValue(CSSValueNone);
     }
 
     RefPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
     for (size_t i = 0; i < trackSizes.size(); ++i) {
         addValuesForNamedGridLinesAtIndex(orderedNamedGridLines, i, *list);
-        list->append(valueForGridTrackSize(trackSizes[i], style, renderView));
+        list->append(valueForGridTrackSize(trackSizes[i], style, maxSize, renderView));
     }
     // Those are the trailing <string>* allowed in the syntax.
     addValuesForNamedGridLinesAtIndex(orderedNamedGridLines, trackSizes.size(), *list);
     return list.release();
 }
 
 static PassRefPtr<CSSValue> valueForGridPosition(const GridPosition& position)
 {
     if (position.isAuto())
         return cssValuePool().createIdentifierValue(CSSValueAuto);
@@ skipping 497 matching lines @@
 
 static bool isLayoutDependent(CSSPropertyID propertyID, PassRefPtr<RenderStyle> style, RenderObject* renderer)
 {
     // Some properties only depend on layout in certain conditions which
     // are specified in the main switch statement below. So we can avoid
     // forcing layout in those conditions. The conditions in this switch
     // statement must remain in sync with the conditions in the main switch.
     // FIXME: Some of these cases could be narrowed down or optimized better.
     switch (propertyID) {
     case CSSPropertyBottom:
+    case CSSPropertyGridDefinitionColumns:
+    case CSSPropertyGridDefinitionRows:
     case CSSPropertyHeight:
     case CSSPropertyLeft:
     case CSSPropertyRight:
     case CSSPropertyTop:
     case CSSPropertyWebkitPerspectiveOrigin:
     case CSSPropertyWebkitTransform:
     case CSSPropertyWebkitTransformOrigin:
     case CSSPropertyWidth:
     case CSSPropertyWebkitFilter:
         return true;
@@ skipping 453 matching lines @@
                 return cssValuePool().createIdentifierValue(CSSValueNormal);
             RefPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
             for (unsigned i = 0; i < featureSettings->size(); ++i) {
                 const FontFeature& feature = featureSettings->at(i);
                 RefPtr<FontFeatureValue> featureValue = FontFeatureValue::create(feature.tag(), feature.value());
                 list->append(featureValue.release());
             }
             return list.release();
         }
         case CSSPropertyGridAutoColumns:
-            return valueForGridTrackSize(style->gridAutoColumns(), style.get(), m_node->document().renderView());
+            return valueForGridTrackSize(style->gridAutoColumns(), style.get(), sizingBox(renderer).width(), m_node->document().renderView());
         case CSSPropertyGridAutoFlow:
             return cssValuePool().createValue(style->gridAutoFlow());
         case CSSPropertyGridAutoRows:
-            return valueForGridTrackSize(style->gridAutoRows(), style.get(), m_node->document().renderView());
+            return valueForGridTrackSize(style->gridAutoRows(), style.get(), sizingBox(renderer).height(), m_node->document().renderView());
         case CSSPropertyGridDefinitionColumns:
-            return valueForGridTrackList(style->gridDefinitionColumns(), style->orderedNamedGridColumnLines(), style.get(), m_node->document().renderView());
+            return valueForGridTrackList(style->gridDefinitionColumns(), style->orderedNamedGridColumnLines(), style.get(), sizingBox(renderer).width(), m_node->document().renderView());
         case CSSPropertyGridDefinitionRows:
-            return valueForGridTrackList(style->gridDefinitionRows(), style->orderedNamedGridRowLines(), style.get(), m_node->document().renderView());
+            return valueForGridTrackList(style->gridDefinitionRows(), style->orderedNamedGridRowLines(), style.get(), sizingBox(renderer).height(), m_node->document().renderView());
 
         case CSSPropertyGridColumnStart:
             return valueForGridPosition(style->gridColumnStart());
         case CSSPropertyGridColumnEnd:
             return valueForGridPosition(style->gridColumnEnd());
         case CSSPropertyGridRowStart:
             return valueForGridPosition(style->gridRowStart());
         case CSSPropertyGridRowEnd:
             return valueForGridPosition(style->gridRowEnd());
         case CSSPropertyGridColumn:
@@ skipping 1139 matching lines @@
     static const CSSPropertyID propertiesAfterSlashSeperator[3] = { CSSPropertyBackgroundSize, CSSPropertyBackgroundOrigin,
                                                                     CSSPropertyBackgroundClip };
 
     RefPtr<CSSValueList> list = CSSValueList::createSlashSeparated();
     list->append(valuesForShorthandProperty(StylePropertyShorthand(CSSPropertyBackground, propertiesBeforeSlashSeperator, WTF_ARRAY_LENGTH(propertiesBeforeSlashSeperator))));
     list->append(valuesForShorthandProperty(StylePropertyShorthand(CSSPropertyBackground, propertiesAfterSlashSeperator, WTF_ARRAY_LENGTH(propertiesAfterSlashSeperator))));
     return list.release();
 }
 
 } // namespace WebCore