third_party/WebKit/Source/core/frame/Navigator.cpp

/*
 *  Copyright (C) 2000 Harri Porten (porten@kde.org)
 *  Copyright (c) 2000 Daniel Molkentin (molkentin@kde.org)
 *  Copyright (c) 2000 Stefan Schimanski (schimmi@kde.org)
 *  Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc.
 *  Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 *  MA 02110-1301, USA
 */

#include "core/frame/Navigator.h"

#include "bindings/core/v8/ScriptController.h"
#include "core/dom/Document.h"
#include "core/frame/LocalFrame.h"
#include "core/frame/NavigatorID.h"
#include "core/frame/Settings.h"
#include "core/loader/CookieJar.h"
#include "core/loader/FrameLoader.h"
#include "core/page/ChromeClient.h"
#include "core/page/Page.h"
#include "platform/Language.h"

namespace blink {

Navigator::Navigator(LocalFrame* frame) : DOMWindowClient(frame) {}

String Navigator::productSub() const {
  return "20030107";
}

String Navigator::vendor() const {
  // Do not change without good cause. History:
  // https://code.google.com/p/chromium/issues/detail?id=276813
  // https://www.w3.org/Bugs/Public/show_bug.cgi?id=27786
  // https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/QrgyulnqvmE
  return "Google Inc.";
}

String Navigator::vendorSub() const {
  return "";
}

String Navigator::userAgent() const {
  // If the frame is already detached it no longer has a meaningful useragent.
  if (!frame() || !frame()->page())
    return String();

  return frame()->loader().userAgent();
}

bool Navigator::cookieEnabled() const {
  if (!frame())
    return false;

  Settings* settings = frame()->settings();
  if (!settings || !settings->getCookieEnabled())
    return false;

  return cookiesEnabled(frame()->document());
}

Vector<String> Navigator::languages() {
  Vector<String> languages;

  if (!frame() || !frame()->page()) {
    languages.push_back(defaultLanguage());
    return languages;
  }

  String acceptLanguages = frame()->page()->chromeClient().acceptLanguages();
  acceptLanguages.split(',', languages);

  // Sanitizing tokens. We could do that more extensively but we should assume
  // that the accept languages are already sane and support BCP47. It is
  // likely a waste of time to make sure the tokens matches that spec here.
  for (size_t i = 0; i < languages.size(); ++i) {
    String& token = languages[i];
    token = token.stripWhiteSpace();
    if (token.length() >= 3 && token[2] == '_')
      token.replace(2, 1, "-");
  }

  return languages;
}

DEFINE_TRACE(Navigator) {
  DOMWindowClient::trace(visitor);
  Supplementable<Navigator>::trace(visitor);
}

}  // namespace blink