C++ (Cpp) RawPtr::removeChild Examples

Example #1

File: Text.cpp Project: aobzhirov/ChromiumGStreamerBackend

RawPtr<Text> Text::replaceWholeText(const String& newText)
{
    // Remove all adjacent text nodes, and replace the contents of this one.

    // Protect startText and endText against mutation event handlers removing the last ref
    RawPtr<Text> startText = const_cast<Text*>(earliestLogicallyAdjacentTextNode(this));
    RawPtr<Text> endText = const_cast<Text*>(latestLogicallyAdjacentTextNode(this));

    RawPtr<Text> protectedThis(this); // Mutation event handlers could cause our last ref to go away
    RawPtr<ContainerNode> parent = parentNode(); // Protect against mutation handlers moving this node during traversal
    for (RawPtr<Node> n = startText; n && n != this && n->isTextNode() && n->parentNode() == parent;) {
        RawPtr<Node> nodeToRemove(n.release());
        n = nodeToRemove->nextSibling();
        parent->removeChild(nodeToRemove.get(), IGNORE_EXCEPTION);
    }

    if (this != endText) {
        Node* onePastEndText = endText->nextSibling();
        for (RawPtr<Node> n = nextSibling(); n && n != onePastEndText && n->isTextNode() && n->parentNode() == parent;) {
            RawPtr<Node> nodeToRemove(n.release());
            n = nodeToRemove->nextSibling();
            parent->removeChild(nodeToRemove.get(), IGNORE_EXCEPTION);
        }
    }

    if (newText.isEmpty()) {
        if (parent && parentNode() == parent)
            parent->removeChild(this, IGNORE_EXCEPTION);
        return nullptr;
    }

    setData(newText);
    return protectedThis.release();
}