WebSearchableFormData::WebSearchableFormData(const WebFormElement& form, const WebInputElement& selectedInputElement)
{
HTMLFormElement* formElement = static_cast<HTMLFormElement*>(form);
HTMLInputElement* inputElement = static_cast<HTMLInputElement*>(selectedInputElement);
// Only consider forms that GET data.
// Allow HTTPS only when an input element is provided.
if (equalIgnoringCase(formElement->getAttribute(methodAttr), "post")
|| (!isHTTPFormSubmit(*formElement) && !inputElement))
return;
WTF::TextEncoding encoding;
getFormEncoding(*formElement, &encoding);
if (!encoding.isValid()) {
// Need a valid encoding to encode the form elements.
// If the encoding isn't found webkit ends up replacing the params with
// empty strings. So, we don't try to do anything here.
return;
}
// Look for a suitable search text field in the form when a
// selectedInputElement is not provided.
if (!inputElement) {
inputElement = findSuitableSearchInputElement(*formElement);
// Return if no suitable text element has been found.
if (!inputElement)
return;
}
HTMLFormControlElement* firstSubmitButton = buttonToActivate(*formElement);
if (firstSubmitButton) {
// The form does not have an active submit button, make the first button
// active. We need to do this, otherwise the URL will not contain the
// name of the submit button.
firstSubmitButton->setActivatedSubmit(true);
}
Vector<char> encodedString;
bool isValidSearchString = buildSearchString(*formElement, &encodedString, encoding, inputElement);
if (firstSubmitButton)
firstSubmitButton->setActivatedSubmit(false);
// Return if the search string is not valid.
if (!isValidSearchString)
return;
String action(formElement->action());
KURL url(formElement->document().completeURL(action.isNull() ? "" : action));
RefPtr<EncodedFormData> formData = EncodedFormData::create(encodedString);
url.setQuery(formData->flattenToString());
m_url = url;
m_encoding = String(encoding.name());
}
