static void runAutofocus(HTMLDialogElement* dialog)
{
Node* next = 0;
for (Node* node = dialog->firstChild(); node; node = next) {
if (node->isElementNode() && toElement(node)->isFormControlElement()) {
HTMLFormControlElement* control = toHTMLFormControlElement(node);
if (control->isAutofocusable()) {
control->focus();
control->setAutofocused();
return;
}
}
if (node->hasTagName(dialogTag))
next = NodeTraversal::nextSkippingChildren(node, dialog);
else
next = NodeTraversal::next(node, dialog);
}
}
// This function chooses the focused element when showModal() is invoked, as described in the spec for showModal().
static void setFocusForModalDialog(HTMLDialogElement* dialog)
{
Element* focusableDescendant = 0;
Node* next = 0;
for (Node* node = dialog->firstChild(); node; node = next) {
if (node->hasTagName(dialogTag))
next = NodeTraversal::nextSkippingChildren(*node, dialog);
else
next = NodeTraversal::next(*node, dialog);
if (!node->isElementNode())
continue;
Element* element = toElement(node);
if (element->isFormControlElement()) {
HTMLFormControlElement* control = toHTMLFormControlElement(node);
if (control->isAutofocusable()) {
control->focus();
return;
}
}
if (!focusableDescendant && element->isFocusable())
focusableDescendant = element;
}
if (focusableDescendant) {
focusableDescendant->focus();
return;
}
if (dialog->isFocusable()) {
dialog->focus();
return;
}
dialog->document().setFocusedElement(0);
}
