void LayoutTableRow::styleDidChange(StyleDifference diff, const ComputedStyle* oldStyle)
{
    ASSERT(style()->display() == TABLE_ROW);

    LayoutBox::styleDidChange(diff, oldStyle);
    propagateStyleToAnonymousChildren();

    if (section() && oldStyle && style()->logicalHeight() != oldStyle->logicalHeight())
        section()->rowLogicalHeightChanged(this);

    // If border was changed, notify table.
    if (parent()) {
        LayoutTable* table = this->table();
        if (table && !table->selfNeedsLayout() && !table->normalChildNeedsLayout() && oldStyle && oldStyle->border() != style()->border())
            table->invalidateCollapsedBorders();

        if (table && oldStyle && diff.needsFullLayout() && needsLayout() && table->collapseBorders() && borderWidthChanged(oldStyle, style())) {
            // If the border width changes on a row, we need to make sure the cells in the row know to lay out again.
            // This only happens when borders are collapsed, since they end up affecting the border sides of the cell
            // itself.
            for (LayoutBox* childBox = firstChildBox(); childBox; childBox = childBox->nextSiblingBox()) {
                if (!childBox->isTableCell())
                    continue;
                childBox->setChildNeedsLayout();
            }
        }
    }
}
void LayoutTableCol::styleDidChange(StyleDifference diff, const ComputedStyle* oldStyle)
{
    LayoutBox::styleDidChange(diff, oldStyle);

    // If border was changed, notify table.
    if (parent()) {
        LayoutTable* table = this->table();
        if (table && !table->selfNeedsLayout() && !table->normalChildNeedsLayout() && oldStyle && oldStyle->border() != style()->border()) {
            table->invalidateCollapsedBorders();
        } else if (oldStyle && oldStyle->logicalWidth() != style()->logicalWidth()) {
            // FIXME : setPreferredLogicalWidthsDirty is done for all cells as of now.
            // Need to find a better way so that only the cells which are changed by
            // the col width should have preferred logical widths recomputed.
            for (LayoutObject* child = table->children()->firstChild(); child; child = child->nextSibling()) {
                if (!child->isTableSection())
                    continue;
                LayoutTableSection* section = toLayoutTableSection(child);
                for (LayoutTableRow* row = section->firstRow(); row; row = row->nextRow()) {
                    for (LayoutTableCell* cell = row->firstCell(); cell; cell = cell->nextCell())
                        cell->setPreferredLogicalWidthsDirty();
                }
            }
        }
    }
}
Beispiel #3
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void LayoutTableRow::styleDidChange(StyleDifference diff,
                                    const ComputedStyle* oldStyle) {
  DCHECK_EQ(style()->display(), EDisplay::TableRow);

  LayoutTableBoxComponent::styleDidChange(diff, oldStyle);
  propagateStyleToAnonymousChildren();

  if (!oldStyle)
    return;

  if (section() && style()->logicalHeight() != oldStyle->logicalHeight())
    section()->rowLogicalHeightChanged(this);

  if (!parent())
    return;
  LayoutTable* table = this->table();
  if (!table)
    return;

  if (!table->selfNeedsLayout() && !table->normalChildNeedsLayout() &&
      oldStyle->border() != style()->border())
    table->invalidateCollapsedBorders();

  if (LayoutTableBoxComponent::doCellsHaveDirtyWidth(*this, *table, diff,
                                                     *oldStyle)) {
    // If the border width changes on a row, we need to make sure the cells in
    // the row know to lay out again.
    // This only happens when borders are collapsed, since they end up affecting
    // the border sides of the cell itself.
    for (LayoutBox* childBox = firstChildBox(); childBox;
         childBox = childBox->nextSiblingBox()) {
      if (!childBox->isTableCell())
        continue;
      // TODO(dgrogan) Add a layout test showing that setChildNeedsLayout is
      // needed instead of setNeedsLayout.
      childBox->setChildNeedsLayout();
      childBox->setPreferredLogicalWidthsDirty(MarkOnlyThis);
    }
    // Most table componenents can rely on LayoutObject::styleDidChange
    // to mark the container chain dirty. But LayoutTableSection seems
    // to never clear its dirty bit, which stops the propagation. So
    // anything under LayoutTableSection has to restart the propagation
    // at the table.
    // TODO(dgrogan): Make LayoutTableSection clear its dirty bit.
    table->setPreferredLogicalWidthsDirty();
  }
}