NS_IMETHODIMP
nsHTMLLegendElement::GetForm(nsIDOMHTMLFormElement** aForm)
{
Element* form = GetFormElement();
return form ? CallQueryInterface(form, aForm) : NS_OK;
}
// Function to create and/or retrieve a CFormElement from
// a layout form struct.
CFormElement *CFormElement::GetFormElement(CAbstractCX *pCX, LO_FormElementStruct *pFormElement)
{
CFormElement *pRetval = NULL;
// Ensure we have enough information with which to continue.
if(pCX == NULL) {
return(pRetval);
}
else if(pFormElement == NULL) {
return(pRetval);
}
pRetval = GetFormElement(pCX, pFormElement->element_data);
// Look at the form element structure to see if one already exists.
if(pRetval == NULL && pFormElement->element_data != NULL) {
// We need to create a new form class.
TRY {
switch(pFormElement->element_data->type) {
case FORM_TYPE_TEXT:
case FORM_TYPE_PASSWORD:
pRetval = (CFormElement *)new CFormText();
break;
case FORM_TYPE_CHECKBOX:
case FORM_TYPE_RADIO:
pRetval = (CFormElement *)new CFormRadio();
break;
case FORM_TYPE_BUTTON:
case FORM_TYPE_RESET:
case FORM_TYPE_SUBMIT:
pRetval = (CFormElement *)new CFormButton();
break;
case FORM_TYPE_SELECT_ONE:
pRetval = (CFormElement *)new CFormSelectOne();
break;
case FORM_TYPE_SELECT_MULT:
pRetval = (CFormElement *)new CFormSelectMult();
break;
case FORM_TYPE_TEXTAREA:
pRetval = (CFormElement *)new CFormTextarea();
break;
case FORM_TYPE_FILE:
pRetval = (CFormElement *)new CFormFile();
break;
case FORM_TYPE_READONLY:
pRetval = (CFormElement *)new CFormReadOnly();
break;
default:
// What exactly are we doing here?
TRACE("Unimplemented form type (%d) requested.\n", (int)pFormElement->element_data->type);
pRetval = NULL;
break;
}
}
CATCH(CException, e) {
pRetval = NULL;
}
END_CATCH
}
already_AddRefed<nsHTMLFormElement>
HTMLLegendElement::GetForm()
{
Element* form = GetFormElement();
MOZ_ASSERT_IF(form, form->IsHTML(nsGkAtoms::form));
nsRefPtr<nsHTMLFormElement> ret = static_cast<nsHTMLFormElement*>(form);
return ret.forget();
}