static void adjustGridPositionsFromStyle(const RenderStyle& gridContainerStyle, const RenderBox& gridItem, GridTrackSizingDirection direction, GridPosition& initialPosition, GridPosition& finalPosition)
{
bool isForColumns = direction == ForColumns;
initialPosition = isForColumns ? gridItem.style().gridItemColumnStart() : gridItem.style().gridItemRowStart();
finalPosition = isForColumns ? gridItem.style().gridItemColumnEnd() : gridItem.style().gridItemRowEnd();
// We must handle the placement error handling code here instead of in the StyleAdjuster because we don't want to
// overwrite the specified values.
if (initialPosition.isSpan() && finalPosition.isSpan())
finalPosition.setAutoPosition();
if (gridItem.isOutOfFlowPositioned()) {
// Early detect the case of non existing named grid lines for positioned items.
if (initialPosition.isNamedGridArea() && !NamedLineCollection::isValidNamedLineOrArea(initialPosition.namedGridLine(), gridContainerStyle, initialPositionSide(direction)))
initialPosition.setAutoPosition();
if (finalPosition.isNamedGridArea() && !NamedLineCollection::isValidNamedLineOrArea(finalPosition.namedGridLine(), gridContainerStyle, finalPositionSide(direction)))
finalPosition.setAutoPosition();
}
// If the grid item has an automatic position and a grid span for a named line in a given dimension, instead treat the grid span as one.
if (initialPosition.isAuto() && finalPosition.isSpan() && !finalPosition.namedGridLine().isNull())
finalPosition.setSpanPosition(1, String());
if (finalPosition.isAuto() && initialPosition.isSpan() && !initialPosition.namedGridLine().isNull())
initialPosition.setSpanPosition(1, String());
}
void GridResolvedPosition::initialAndFinalPositionsFromStyle(const RenderStyle& gridContainerStyle, const RenderBox& gridItem, GridTrackSizingDirection direction, GridPosition& initialPosition, GridPosition& finalPosition)
{
initialPosition = (direction == ForColumns) ? gridItem.style()->gridColumnStart() : gridItem.style()->gridRowStart();
finalPosition = (direction == ForColumns) ? gridItem.style()->gridColumnEnd() : gridItem.style()->gridRowEnd();
GridPositionSide initialPositionSide = calculateInitialPositionSide(direction);
GridPositionSide finalPositionSide = calculateFinalPositionSide(direction);
// We must handle the placement error handling code here instead of in the StyleAdjuster because we don't want to
// overwrite the specified values.
if (initialPosition.isSpan() && finalPosition.isSpan())
finalPosition.setAutoPosition();
// Try to early detect the case of non existing named grid lines. This way we could assume later that
// GridResolvedPosition::resolveGrisPositionFromStyle() always return a valid resolved position.
if (initialPosition.isNamedGridArea() && !isValidNamedLineOrArea(initialPosition.namedGridLine(), gridContainerStyle, initialPositionSide))
initialPosition.setAutoPosition();
if (finalPosition.isNamedGridArea() && !isValidNamedLineOrArea(finalPosition.namedGridLine(), gridContainerStyle, finalPositionSide))
finalPosition.setAutoPosition();
// If the grid item has an automatic position and a grid span for a named line in a given dimension, instead treat the grid span as one.
if (initialPosition.isAuto() && finalPosition.isSpan() && !finalPosition.namedGridLine().isNull())
finalPosition.setSpanPosition(1, String());
if (finalPosition.isAuto() && initialPosition.isSpan() && !initialPosition.namedGridLine().isNull())
initialPosition.setSpanPosition(1, String());
}
GridPosition StyleBuilderConverter::convertGridPosition(StyleResolverState&, CSSValue* value)
{
// We accept the specification's grammar:
// 'auto' | [ <integer> || <custom-ident> ] | [ span && [ <integer> || <custom-ident> ] ] | <custom-ident>
GridPosition position;
if (value->isPrimitiveValue()) {
CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
// We translate <custom-ident> to <string> during parsing as it
// makes handling it more simple.
if (primitiveValue->isString()) {
position.setNamedGridArea(primitiveValue->getStringValue());
return position;
}
ASSERT(primitiveValue->getValueID() == CSSValueAuto);
return position;
}
CSSValueList* values = toCSSValueList(value);
ASSERT(values->length());
bool isSpanPosition = false;
// The specification makes the <integer> optional, in which case it default to '1'.
int gridLineNumber = 1;
String gridLineName;
CSSValueListIterator it = values;
CSSPrimitiveValue* currentValue = toCSSPrimitiveValue(it.value());
if (currentValue->getValueID() == CSSValueSpan) {
isSpanPosition = true;
it.advance();
currentValue = it.hasMore() ? toCSSPrimitiveValue(it.value()) : 0;
}
if (currentValue && currentValue->isNumber()) {
gridLineNumber = currentValue->getIntValue();
it.advance();
currentValue = it.hasMore() ? toCSSPrimitiveValue(it.value()) : 0;
}
if (currentValue && currentValue->isString()) {
gridLineName = currentValue->getStringValue();
it.advance();
}
ASSERT(!it.hasMore());
if (isSpanPosition)
position.setSpanPosition(gridLineNumber, gridLineName);
else
position.setExplicitPosition(gridLineNumber, gridLineName);
return position;
}
void GridResolvedPosition::adjustGridPositionsFromStyle(const RenderStyle& gridContainerStyle, GridPosition& initialPosition, GridPosition& finalPosition, GridPositionSide initialPositionSide, GridPositionSide finalPositionSide)
{
ASSERT(isColumnSide(initialPositionSide) == isColumnSide(finalPositionSide));
// We must handle the placement error handling code here instead of in the StyleAdjuster because we don't want to
// overwrite the specified values.
if (initialPosition.isSpan() && finalPosition.isSpan())
finalPosition.setAutoPosition();
// Try to early detect the case of non existing named grid lines. This way we could assume later that
// GridResolvedPosition::resolveGrisPositionFromStyle() won't require the autoplacement to run, i.e., it'll always return a
// valid resolved position.
if (initialPosition.isNamedGridArea() && isNonExistentNamedLineOrArea(initialPosition.namedGridLine(), gridContainerStyle, initialPositionSide))
initialPosition.setAutoPosition();
if (finalPosition.isNamedGridArea() && isNonExistentNamedLineOrArea(finalPosition.namedGridLine(), gridContainerStyle, finalPositionSide))
finalPosition.setAutoPosition();
// If the grid item has an automatic position and a grid span for a named line in a given dimension, instead treat the grid span as one.
if (initialPosition.isAuto() && finalPosition.isSpan() && !finalPosition.namedGridLine().isNull())
finalPosition.setSpanPosition(1, String());
if (finalPosition.isAuto() && initialPosition.isSpan() && !initialPosition.namedGridLine().isNull())
initialPosition.setSpanPosition(1, String());
}
