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/*
* This file is part of the WebKit project.
*
* Copyright (C) 2009 Michelangelo De Simone <micdesim@gmail.com>
* Copyright (C) 2010 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "ValidityState.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "HTMLSelectElement.h"
#include "HTMLTextAreaElement.h"
#include "HTMLTreeBuilder.h"
#include "LocalizedStrings.h"
#include <wtf/StdLibExtras.h>
namespace WebCore {
using namespace HTMLNames;
String ValidityState::validationMessage() const
{
if (!toHTMLElement(m_control)->willValidate())
return String();
if (customError())
return m_customErrorMessage;
HTMLElement* element = toHTMLElement(m_control);
bool isInputElement = element->isFormControlElement() && element->hasTagName(inputTag);
bool isTextAreaElement = element->isFormControlElement() && element->hasTagName(textareaTag);
// The order of the following checks is meaningful. e.g. We'd like to show the
// valueMissing message even if the control has other validation errors.
if (valueMissing()) {
if (element->hasTagName(selectTag))
return validationMessageValueMissingForSelectText();
if (isInputElement)
return static_cast<HTMLInputElement*>(element)->valueMissingText();
return validationMessageValueMissingText();
}
if (typeMismatch()) {
if (isInputElement)
return static_cast<HTMLInputElement*>(element)->typeMismatchText();
return validationMessageTypeMismatchText();
}
if (patternMismatch())
return validationMessagePatternMismatchText();
if (tooLong()) {
if (!isInputElement && !isTextAreaElement) {
ASSERT_NOT_REACHED();
return String();
}
HTMLTextFormControlElement* text = static_cast<HTMLTextFormControlElement*>(element);
return validationMessageTooLongText(numGraphemeClusters(text->value()), text->maxLength());
}
if (rangeUnderflow()) {
if (!isInputElement) {
ASSERT_NOT_REACHED();
return String();
}
return validationMessageRangeUnderflowText(static_cast<HTMLInputElement*>(element)->minimumString());
}
if (rangeOverflow()) {
if (!isInputElement) {
ASSERT_NOT_REACHED();
return String();
}
return validationMessageRangeOverflowText(static_cast<HTMLInputElement*>(element)->maximumString());
}
if (stepMismatch()) {
if (!isInputElement) {
ASSERT_NOT_REACHED();
return String();
}
HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
return validationMessageStepMismatchText(input->stepBaseString(), input->stepString());
}
return String();
}
void ValidityState::setCustomErrorMessage(const String& message)
{
m_customErrorMessage = message;
if (m_control->isFormControlElement())
static_cast<HTMLFormControlElement*>(m_control)->setNeedsValidityCheck();
}
bool ValidityState::valueMissing() const
{
HTMLElement* element = toHTMLElement(m_control);
if (!element->willValidate())
return false;
if (element->hasTagName(inputTag)) {
HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
return input->valueMissing(input->value());
}
if (element->hasTagName(textareaTag)) {
HTMLTextAreaElement* textArea = static_cast<HTMLTextAreaElement*>(element);
return textArea->valueMissing(textArea->value());
}
if (element->hasTagName(selectTag)) {
HTMLSelectElement* select = static_cast<HTMLSelectElement*>(element);
return select->valueMissing();
}
return false;
}
bool ValidityState::typeMismatch() const
{
HTMLElement* element = toHTMLElement(m_control);
if (!element->willValidate())
return false;
if (!element->hasTagName(inputTag))
return false;
return static_cast<HTMLInputElement*>(element)->typeMismatch();
}
bool ValidityState::patternMismatch() const
{
HTMLElement* element = toHTMLElement(m_control);
if (!element->willValidate())
return false;
if (!element->hasTagName(inputTag))
return false;
HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
return input->patternMismatch(input->value());
}
bool ValidityState::tooLong() const
{
HTMLElement* element = toHTMLElement(m_control);
if (!element->willValidate())
return false;
if (element->hasTagName(inputTag)) {
HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
return input->tooLong(input->value(), HTMLTextFormControlElement::CheckDirtyFlag);
}
if (element->hasTagName(textareaTag)) {
HTMLTextAreaElement* textArea = static_cast<HTMLTextAreaElement*>(element);
return textArea->tooLong(textArea->value(), HTMLTextFormControlElement::CheckDirtyFlag);
}
return false;
}
bool ValidityState::rangeUnderflow() const
{
HTMLElement* element = toHTMLElement(m_control);
if (!element->willValidate())
return false;
if (!element->hasTagName(inputTag))
return false;
HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
return input->rangeUnderflow(input->value());
}
bool ValidityState::rangeOverflow() const
{
HTMLElement* element = toHTMLElement(m_control);
if (!element->willValidate())
return false;
if (!element->hasTagName(inputTag))
return false;
HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
return input->rangeOverflow(input->value());
}
bool ValidityState::stepMismatch() const
{
HTMLElement* element = toHTMLElement(m_control);
if (!element->willValidate())
return false;
if (!element->hasTagName(inputTag))
return false;
HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
return input->stepMismatch(input->value());
}
bool ValidityState::customError() const
{
HTMLElement* element = toHTMLElement(m_control);
return element->willValidate() && !m_customErrorMessage.isEmpty();
}
bool ValidityState::valid() const
{
bool someError = typeMismatch() || stepMismatch() || rangeUnderflow() || rangeOverflow()
|| tooLong() || patternMismatch() || valueMissing() || customError();
return !someError;
}
} // namespace
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