static bool shouldScaleColumns(RenderTable* table)
{
// A special case. If this table is not fixed width and contained inside
// a cell, then don't bloat the maxwidth by examining percentage growth.
bool scale = true;
while (table) {
Length tw = table->style()->width();
if ((tw.isVariable() || tw.isPercent()) && !table->isPositioned()) {
RenderBlock* cb = table->containingBlock();
while (cb && !cb->isCanvas() && !cb->isTableCell() &&
cb->style()->width().isVariable() && !cb->isPositioned())
cb = cb->containingBlock();
table = 0;
if (cb && cb->isTableCell() &&
(cb->style()->width().isVariable() || cb->style()->width().isPercent())) {
if (tw.isPercent())
scale = false;
else {
RenderTableCell* cell = static_cast<RenderTableCell*>(cb);
if (cell->colSpan() > 1 || cell->table()->style()->width().isVariable())
scale = false;
else
table = cell->table();
}
}
}
else
table = 0;
}
return scale;
}
static inline bool hasAutoHeightOrContainingBlockWithAutoHeight(const RenderReplaced* replaced)
{
Length logicalHeightLength = replaced->style()->logicalHeight();
if (logicalHeightLength.isAuto())
return true;
// For percentage heights: The percentage is calculated with respect to the height of the generated box's
// containing block. If the height of the containing block is not specified explicitly (i.e., it depends
// on content height), and this element is not absolutely positioned, the value computes to 'auto'.
if (!logicalHeightLength.isPercent() || replaced->isPositioned() || replaced->document()->inQuirksMode())
return false;
for (RenderBlock* cb = replaced->containingBlock(); !cb->isRenderView(); cb = cb->containingBlock()) {
if (cb->isTableCell() || (!cb->style()->logicalHeight().isAuto() || (!cb->style()->top().isAuto() && !cb->style()->bottom().isAuto())))
return false;
}
return true;
}
bool RenderBoxModelObject::hasAutoHeightOrContainingBlockWithAutoHeight() const
{
Length logicalHeightLength = style()->logicalHeight();
if (logicalHeightLength.isAuto())
return true;
// For percentage heights: The percentage is calculated with respect to the height of the generated box's
// containing block. If the height of the containing block is not specified explicitly (i.e., it depends
// on content height), and this element is not absolutely positioned, the value computes to 'auto'.
if (!logicalHeightLength.isPercent() || isOutOfFlowPositioned() || document().inQuirksMode())
return false;
// Anonymous block boxes are ignored when resolving percentage values that would refer to it:
// the closest non-anonymous ancestor box is used instead.
RenderBlock* cb = containingBlock();
while (cb->isAnonymous())
cb = cb->containingBlock();
// Matching RenderBox::percentageLogicalHeightIsResolvableFromBlock() by
// ignoring table cell's attribute value, where it says that table cells violate
// what the CSS spec says to do with heights. Basically we
// don't care if the cell specified a height or not.
if (cb->isTableCell())
return false;
// Match RenderBox::availableLogicalHeightUsing by special casing
// the render view. The available height is taken from the frame.
if (cb->isRenderView())
return false;
if (cb->isOutOfFlowPositioned() && !cb->style()->logicalTop().isAuto() && !cb->style()->logicalBottom().isAuto())
return false;
// If the height of the containing block computes to 'auto', then it hasn't been 'specified explicitly'.
return cb->hasAutoHeightOrContainingBlockWithAutoHeight();
}
void RenderTreeAsText::writeRenderObject(TextStream& ts, const RenderObject& o, RenderAsTextBehavior behavior)
{
ts << o.renderName();
if (behavior & RenderAsTextShowAddresses)
ts << " " << static_cast<const void*>(&o);
if (o.style() && o.style()->zIndex())
ts << " zI: " << o.style()->zIndex();
if (o.node()) {
String tagName = getTagName(o.node());
if (!tagName.isEmpty()) {
ts << " {" << tagName << "}";
// flag empty or unstyled AppleStyleSpan because we never
// want to leave them in the DOM
if (isEmptyOrUnstyledAppleStyleSpan(o.node()))
ts << " *empty or unstyled AppleStyleSpan*";
}
}
RenderBlock* cb = o.containingBlock();
bool adjustForTableCells = cb ? cb->isTableCell() : false;
LayoutRect r;
if (o.isText()) {
// FIXME: Would be better to dump the bounding box x and y rather than the first run's x and y, but that would involve updating
// many test results.
const RenderText& text = *toRenderText(&o);
IntRect linesBox = text.linesBoundingBox();
r = IntRect(text.firstRunX(), text.firstRunY(), linesBox.width(), linesBox.height());
if (adjustForTableCells && !text.firstTextBox())
adjustForTableCells = false;
} else if (o.isRenderInline()) {
// FIXME: Would be better not to just dump 0, 0 as the x and y here.
const RenderInline& inlineFlow = *toRenderInline(&o);
r = IntRect(0, 0, inlineFlow.linesBoundingBox().width(), inlineFlow.linesBoundingBox().height());
adjustForTableCells = false;
} else if (o.isTableCell()) {
// FIXME: Deliberately dump the "inner" box of table cells, since that is what current results reflect. We'd like
// to clean up the results to dump both the outer box and the intrinsic padding so that both bits of information are
// captured by the results.
const RenderTableCell& cell = *toRenderTableCell(&o);
r = LayoutRect(cell.x(), cell.y() + cell.intrinsicPaddingBefore(), cell.width(), cell.height() - cell.intrinsicPaddingBefore() - cell.intrinsicPaddingAfter());
} else if (o.isBox())
r = toRenderBox(&o)->frameRect();
// FIXME: Temporary in order to ensure compatibility with existing layout test results.
if (adjustForTableCells)
r.move(0, -toRenderTableCell(o.containingBlock())->intrinsicPaddingBefore());
// FIXME: Convert layout test results to report sub-pixel values, in the meantime using enclosingIntRect
// for consistency with old results.
ts << " " << enclosingIntRect(r);
if (!(o.isText() && !o.isBR())) {
if (o.isFileUploadControl())
ts << " " << quoteAndEscapeNonPrintables(toRenderFileUploadControl(&o)->fileTextValue());
if (o.parent()) {
Color color = o.style()->visitedDependentColor(CSSPropertyColor);
if (o.parent()->style()->visitedDependentColor(CSSPropertyColor) != color)
ts << " [color=" << color.nameForRenderTreeAsText() << "]";
// Do not dump invalid or transparent backgrounds, since that is the default.
Color backgroundColor = o.style()->visitedDependentColor(CSSPropertyBackgroundColor);
if (o.parent()->style()->visitedDependentColor(CSSPropertyBackgroundColor) != backgroundColor
&& backgroundColor.isValid() && backgroundColor.rgb())
ts << " [bgcolor=" << backgroundColor.nameForRenderTreeAsText() << "]";
Color textFillColor = o.style()->visitedDependentColor(CSSPropertyWebkitTextFillColor);
if (o.parent()->style()->visitedDependentColor(CSSPropertyWebkitTextFillColor) != textFillColor
&& textFillColor.isValid() && textFillColor != color && textFillColor.rgb())
ts << " [textFillColor=" << textFillColor.nameForRenderTreeAsText() << "]";
Color textStrokeColor = o.style()->visitedDependentColor(CSSPropertyWebkitTextStrokeColor);
if (o.parent()->style()->visitedDependentColor(CSSPropertyWebkitTextStrokeColor) != textStrokeColor
&& textStrokeColor.isValid() && textStrokeColor != color && textStrokeColor.rgb())
ts << " [textStrokeColor=" << textStrokeColor.nameForRenderTreeAsText() << "]";
if (o.parent()->style()->textStrokeWidth() != o.style()->textStrokeWidth() && o.style()->textStrokeWidth() > 0)
ts << " [textStrokeWidth=" << o.style()->textStrokeWidth() << "]";
}
if (!o.isBoxModelObject())
return;
const RenderBoxModelObject& box = *toRenderBoxModelObject(&o);
if (box.borderTop() || box.borderRight() || box.borderBottom() || box.borderLeft()) {
ts << " [border:";
BorderValue prevBorder = o.style()->borderTop();
if (!box.borderTop())
ts << " none";
else {
ts << " (" << box.borderTop() << "px ";
printBorderStyle(ts, o.style()->borderTopStyle());
Color col = o.style()->borderTopColor();
if (!col.isValid())
col = o.style()->color();
ts << col.nameForRenderTreeAsText() << ")";
}
if (o.style()->borderRight() != prevBorder) {
prevBorder = o.style()->borderRight();
if (!box.borderRight())
ts << " none";
else {
ts << " (" << box.borderRight() << "px ";
printBorderStyle(ts, o.style()->borderRightStyle());
Color col = o.style()->borderRightColor();
if (!col.isValid())
col = o.style()->color();
ts << col.nameForRenderTreeAsText() << ")";
}
}
if (o.style()->borderBottom() != prevBorder) {
prevBorder = box.style()->borderBottom();
if (!box.borderBottom())
ts << " none";
else {
ts << " (" << box.borderBottom() << "px ";
printBorderStyle(ts, o.style()->borderBottomStyle());
Color col = o.style()->borderBottomColor();
if (!col.isValid())
col = o.style()->color();
ts << col.nameForRenderTreeAsText() << ")";
}
}
if (o.style()->borderLeft() != prevBorder) {
prevBorder = o.style()->borderLeft();
if (!box.borderLeft())
ts << " none";
else {
ts << " (" << box.borderLeft() << "px ";
printBorderStyle(ts, o.style()->borderLeftStyle());
Color col = o.style()->borderLeftColor();
if (!col.isValid())
col = o.style()->color();
ts << col.nameForRenderTreeAsText() << ")";
}
}
ts << "]";
}
#if ENABLE(MATHML)
// We want to show any layout padding, both CSS padding and intrinsic padding, so we can't just check o.style()->hasPadding().
if (o.isRenderMathMLBlock() && (box.paddingTop() || box.paddingRight() || box.paddingBottom() || box.paddingLeft())) {
ts << " [";
LayoutUnit cssTop = box.computedCSSPaddingTop();
LayoutUnit cssRight = box.computedCSSPaddingRight();
LayoutUnit cssBottom = box.computedCSSPaddingBottom();
LayoutUnit cssLeft = box.computedCSSPaddingLeft();
if (box.paddingTop() != cssTop || box.paddingRight() != cssRight || box.paddingBottom() != cssBottom || box.paddingLeft() != cssLeft) {
ts << "intrinsic ";
if (cssTop || cssRight || cssBottom || cssLeft)
ts << "+ CSS ";
}
ts << "padding: " << roundToInt(box.paddingTop()) << " " << roundToInt(box.paddingRight()) << " " << roundToInt(box.paddingBottom()) << " " << roundToInt(box.paddingLeft()) << "]";
}
#endif
}
if (o.isTableCell()) {
const RenderTableCell& c = *toRenderTableCell(&o);
ts << " [r=" << c.rowIndex() << " c=" << c.col() << " rs=" << c.rowSpan() << " cs=" << c.colSpan() << "]";
}
#if ENABLE(DETAILS_ELEMENT)
if (o.isDetailsMarker()) {
ts << ": ";
switch (toRenderDetailsMarker(&o)->orientation()) {
case RenderDetailsMarker::Left:
ts << "left";
break;
case RenderDetailsMarker::Right:
ts << "right";
break;
case RenderDetailsMarker::Up:
ts << "up";
break;
case RenderDetailsMarker::Down:
ts << "down";
break;
}
}
#endif
if (o.isListMarker()) {
String text = toRenderListMarker(&o)->text();
if (!text.isEmpty()) {
if (text.length() != 1)
text = quoteAndEscapeNonPrintables(text);
else {
switch (text[0]) {
case bullet:
text = "bullet";
break;
case blackSquare:
text = "black square";
break;
case whiteBullet:
text = "white bullet";
break;
default:
text = quoteAndEscapeNonPrintables(text);
}
}
ts << ": " << text;
}
}
if (behavior & RenderAsTextShowIDAndClass) {
if (Node* node = o.node()) {
if (node->hasID())
ts << " id=\"" + static_cast<Element*>(node)->getIdAttribute() + "\"";
if (node->hasClass()) {
ts << " class=\"";
StyledElement* styledElement = static_cast<StyledElement*>(node);
for (size_t i = 0; i < styledElement->classNames().size(); ++i) {
if (i > 0)
ts << " ";
ts << styledElement->classNames()[i];
}
ts << "\"";
}
}
}
if (behavior & RenderAsTextShowLayoutState) {
bool needsLayout = o.selfNeedsLayout() || o.needsPositionedMovementLayout() || o.posChildNeedsLayout() || o.normalChildNeedsLayout();
if (needsLayout)
ts << " (needs layout:";
bool havePrevious = false;
if (o.selfNeedsLayout()) {
ts << " self";
havePrevious = true;
}
if (o.needsPositionedMovementLayout()) {
if (havePrevious)
ts << ",";
havePrevious = true;
ts << " positioned movement";
}
if (o.normalChildNeedsLayout()) {
if (havePrevious)
ts << ",";
havePrevious = true;
ts << " child";
}
if (o.posChildNeedsLayout()) {
if (havePrevious)
ts << ",";
ts << " positioned child";
}
if (needsLayout)
ts << ")";
}
#if PLATFORM(QT)
// Print attributes of embedded QWidgets. E.g. when the WebCore::Widget
// is invisible the QWidget should be invisible too.
if (o.isRenderPart()) {
const RenderPart* part = toRenderPart(const_cast<RenderObject*>(&o));
if (part->widget() && part->widget()->platformWidget()) {
QObject* wid = part->widget()->platformWidget();
ts << " [QT: ";
ts << "geometry: {" << wid->property("geometry").toRect() << "} ";
ts << "isHidden: " << !wid->property("isVisible").toBool() << " ";
ts << "isSelfVisible: " << part->widget()->isSelfVisible() << " ";
ts << "isParentVisible: " << part->widget()->isParentVisible() << " ] ";
}
}
#endif
}