コード例 #1
0
void ColumnBalancer::traverseLines(const LayoutBlockFlow& blockFlow) {
  for (const RootInlineBox* line = blockFlow.firstRootBox(); line;
       line = line->nextRootBox()) {
    LayoutUnit lineTopInFlowThread =
        m_flowThreadOffset + line->lineTopWithLeading();
    if (lineTopInFlowThread < logicalTopInFlowThread())
      continue;
    if (lineTopInFlowThread >= logicalBottomInFlowThread())
      break;
    examineLine(*line);
  }
}
コード例 #2
0
String HTMLTextFormControlElement::valueWithHardLineBreaks() const
{
    // FIXME: It's not acceptable to ignore the HardWrap setting when there is no layoutObject.
    // While we have no evidence this has ever been a practical problem, it would be best to fix it some day.
    HTMLElement* innerText = innerEditorElement();
    if (!innerText || !isTextFormControl())
        return value();

    LayoutBlockFlow* layoutObject = toLayoutBlockFlow(innerText->layoutObject());
    if (!layoutObject)
        return value();

    Node* breakNode;
    unsigned breakOffset;
    RootInlineBox* line = layoutObject->firstRootBox();
    if (!line)
        return value();

    getNextSoftBreak(line, breakNode, breakOffset);

    StringBuilder result;
    for (Node& node : NodeTraversal::descendantsOf(*innerText)) {
        if (isHTMLBRElement(node)) {
            ASSERT(&node == innerText->lastChild());
            if (&node != innerText->lastChild())
                result.append(newlineCharacter);
        } else if (node.isTextNode()) {
            String data = toText(node).data();
            unsigned length = data.length();
            unsigned position = 0;
            while (breakNode == node && breakOffset <= length) {
                if (breakOffset > position) {
                    result.append(data, position, breakOffset - position);
                    position = breakOffset;
                    result.append(newlineCharacter);
                }
                getNextSoftBreak(line, breakNode, breakOffset);
            }
            result.append(data, position, length - position);
        }
        while (breakNode == node)
            getNextSoftBreak(line, breakNode, breakOffset);
    }
    return result.toString();
}