void HTMLTextAreaElement::updatePlaceholderText()
{
ExceptionCode ec = 0;
String placeholderText = strippedPlaceholder();
if (placeholderText.isEmpty()) {
if (m_placeholder) {
shadowTree()->oldestShadowRoot()->removeChild(m_placeholder.get(), ec);
ASSERT(!ec);
m_placeholder.clear();
}
return;
}
if (!m_placeholder) {
m_placeholder = HTMLDivElement::create(document());
m_placeholder->setShadowPseudoId("-webkit-input-placeholder");
shadowTree()->oldestShadowRoot()->insertBefore(m_placeholder, shadowTree()->oldestShadowRoot()->firstChild()->nextSibling(), ec);
ASSERT(!ec);
}
m_placeholder->setInnerText(placeholderText, ec);
ASSERT(!ec);
}
void SVGTRefElement::updateReferencedText()
{
String textContent;
if (Element* target = SVGURIReference::targetElementFromIRIString(href(), document()))
textContent = target->textContent();
ASSERT(hasShadowRoot());
ShadowRoot* root = shadowTree()->oldestShadowRoot();
if (!root->firstChild())
root->appendChild(SVGShadowText::create(document(), textContent), ASSERT_NO_EXCEPTION);
else
root->firstChild()->setTextContent(textContent, ASSERT_NO_EXCEPTION);
}
void SVGTRefElement::detachTarget()
{
// Remove active listeners and clear the text content.
clearEventListener();
String emptyContent;
ExceptionCode ignore = 0;
ASSERT(hasShadowRoot());
Node* container = shadowTree()->oldestShadowRoot()->firstChild();
if (container)
container->setTextContent(emptyContent, ignore);
// Mark the referenced ID as pending.
String id;
SVGURIReference::targetElementFromIRIString(href(), document(), &id);
if (!hasPendingResources() && !id.isEmpty())
document()->accessSVGExtensions()->addPendingResource(id, this);
}
HTMLElement* HTMLTextAreaElement::innerTextElement() const
{
Node* node = shadowTree()->oldestShadowRoot()->firstChild();
ASSERT(!node || node->hasTagName(divTag));
return toHTMLElement(node);
}