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/*
* This file is part of the WebKit project.
*
* Copyright (C) 2009 Michelangelo De Simone <micdesim@gmail.com>
*
* 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 "KURL.h"
#include "RegularExpression.h"
#include <wtf/StdLibExtras.h>
#define EMAIL_LOCALPART "[a-z0-9!#$%&'*+/=?^_`{|}~.-]+"
#define EMAIL_DOMAINPART "[a-z0-9-]+(\\.[a-z0-9-]+)+"
#define EMAIL_PATTERN EMAIL_LOCALPART "@" EMAIL_DOMAINPART
namespace WebCore {
using namespace HTMLNames;
ValidityState::ValidityState(HTMLFormControlElement* parent)
: m_control(parent)
{
ASSERT(parent);
}
bool ValidityState::typeMismatch()
{
if (!control()->hasTagName(inputTag))
return false;
HTMLInputElement* input = static_cast<HTMLInputElement*>(control());
String value = input->value();
if (value.isEmpty())
return false;
switch (input->inputType()) {
case HTMLInputElement::COLOR:
return !isValidColorString(value);
case HTMLInputElement::NUMBER:
return !HTMLInputElement::formStringToDouble(value, 0);
case HTMLInputElement::URL:
return !KURL(KURL(), value).isValid();
case HTMLInputElement::EMAIL:
{
if (!input->multiple())
return !isValidEmailAddress(value);
Vector<String> email_list;
value.split(',', email_list);
for (unsigned i = 0; i < email_list.size(); ++i)
if (!isValidEmailAddress(email_list[i]))
return true;
return false;
}
default:
return false;
}
}
bool ValidityState::rangeUnderflow()
{
if (!control()->hasTagName(inputTag))
return false;
return static_cast<HTMLInputElement*>(control())->rangeUnderflow();
}
bool ValidityState::rangeOverflow()
{
if (!control()->hasTagName(inputTag))
return false;
return static_cast<HTMLInputElement*>(control())->rangeOverflow();
}
bool ValidityState::valid()
{
bool someError = typeMismatch() || stepMismatch() || rangeUnderflow() || rangeOverflow() ||
tooLong() || patternMismatch() || valueMissing() || customError();
return !someError;
}
bool ValidityState::isValidColorString(const String& value)
{
if (value.isEmpty())
return false;
if (value[0] == '#') {
// We don't accept #rgb and #aarrggbb formats.
if (value.length() != 7)
return false;
}
Color color(value); // This accepts named colors such as "white".
return color.isValid() && !color.hasAlpha();
}
bool ValidityState::isValidEmailAddress(const String& email)
{
if (email.isEmpty())
return false;
DEFINE_STATIC_LOCAL(AtomicString, emailPattern, (EMAIL_PATTERN));
DEFINE_STATIC_LOCAL(RegularExpression, regExp, (emailPattern, TextCaseInsensitive));
int matchLength = 0;
int emailLength = email.length();
int matchOffset = regExp.match(email, 0, &matchLength);
return matchOffset == 0 && matchLength == emailLength;
}
} // namespace
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