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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.


#include "base/scoped_ptr.h"
#include "base/timer.h"
#include "chrome/browser/chromeos/login/screen_observer.h"
#include "chrome/browser/tab_contents/tab_contents_delegate.h"

class GURL;

namespace chromeos {

// Base class for wizard screen that holds web page.
class WebPageScreen : public TabContentsDelegate {
  explicit WebPageScreen() {}
  virtual ~WebPageScreen() {}

  // Exits from the screen with the specified exit code.
  virtual void CloseScreen(ScreenObserver::ExitCodes code) = 0;

  // TabContentsDelegate implementation:
  virtual void OpenURLFromTab(TabContents* source,
                              const GURL& url, const GURL& referrer,
                              WindowOpenDisposition disposition,
                              PageTransition::Type transition) {}
  virtual void NavigationStateChanged(const TabContents* source,
                                      unsigned changed_flags) = 0;
  virtual void AddNewContents(TabContents* source,
                              TabContents* new_contents,
                              WindowOpenDisposition disposition,
                              const gfx::Rect& initial_pos,
                              bool user_gesture) {}
  virtual void ActivateContents(TabContents* contents) {}
  virtual void LoadingStateChanged(TabContents* source) = 0;
  virtual void CloseContents(TabContents* source) {}
  virtual bool IsPopup(TabContents* source) { return false; }
  virtual void URLStarredChanged(TabContents* source, bool starred) {}
  virtual void UpdateTargetURL(TabContents* source, const GURL& url) {}
  virtual bool ShouldAddNavigationToHistory() const { return false; }
  virtual void MoveContents(TabContents* source, const gfx::Rect& pos) {}
  virtual void ToolbarSizeChanged(TabContents* source, bool is_animating) {}
  virtual bool HandleContextMenu(const ContextMenuParams& params);

  // Called by |timeout_timer_|. Stops page fetching and closes screen.
  void OnNetworkTimeout();

  // Start/stop timeout timer.
  void StartTimeoutTimer();
  void StopTimeoutTimer();

  // Timer used for network response timeout.
  base::OneShotTimer<WebPageScreen> timeout_timer_;


}  // namespace chromeos


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