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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// TODO describe this file
#ifndef CHROME_BROWSER_ALTERNATE_NAV_URL_FETCHER_H__
#define CHROME_BROWSER_ALTERNATE_NAV_URL_FETCHER_H__
#include <string>
#include "chrome/browser/url_fetcher.h"
#include "chrome/common/notification_service.h"
class NavigationController;
class AlternateNavURLFetcher : public NotificationObserver,
public URLFetcher::Delegate {
public:
enum State {
NOT_STARTED,
IN_PROGRESS,
SUCCEEDED,
FAILED,
};
explicit AlternateNavURLFetcher(const std::wstring& alternate_nav_url);
virtual ~AlternateNavURLFetcher();
State state() const { return state_; }
// Called by the NavigationController when it successfully navigates to the
// entry for which the fetcher is looking up an alternative.
// NOTE: This can be theoretically called multiple times, if multiple
// navigations with the same unique ID succeed.
void OnNavigatedToEntry();
// NotificationObserver
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// URLFetcher::Delegate
virtual void OnURLFetchComplete(const URLFetcher* source,
const GURL& url,
const URLRequestStatus& status,
int response_code,
const ResponseCookies& cookies,
const std::string& data);
private:
void ShowInfobar();
std::wstring alternate_nav_url_;
scoped_ptr<URLFetcher> fetcher_;
NavigationController* controller_;
State state_;
bool navigated_to_entry_;
DISALLOW_EVIL_CONSTRUCTORS(AlternateNavURLFetcher);
};
#endif // CHROME_BROWSER_ALTERNATE_NAV_URL_FETCHER_H__
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