chrome/browser/ui/cocoa/handoff_active_url_observer_delegate.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_COCOA_HANDOFF_ACTIVE_URL_OBSERVER_DELEGATE_H_
   6 #define CHROME_BROWSER_UI_COCOA_HANDOFF_ACTIVE_URL_OBSERVER_DELEGATE_H_
   7
   8 namespace content {
   9 class WebContents;
  10 }
  11
  12 // The delegate for a HandoffActiveURLObserver.
  13 class HandoffActiveURLObserverDelegate {
  14  public:
  15   // Called when:
  16   //   1. The most recently focused browser changes.
  17   //   2. The active tab of the browser changes.
  18   //   3. After a navigation of the web contents of the active tab.
  19   // |web_contents| is the WebContents whose VisibleURL is considered the
  20   // "Active URL" of Chrome.
  21   virtual void HandoffActiveURLChanged(content::WebContents* web_contents) = 0;
  22
  23  protected:
  24   virtual ~HandoffActiveURLObserverDelegate(){};
  25 };
  26
  27 #endif  // CHROME_BROWSER_UI_COCOA_HANDOFF_ACTIVE_URL_OBSERVER_DELEGATE_H_