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// Copyright (c) 2013 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.
#ifndef CHROME_BROWSER_UI_NATIVE_FOCUS_TRACKER_H_
#define CHROME_BROWSER_UI_NATIVE_FOCUS_TRACKER_H_
#include "base/basictypes.h"
class Browser;
// NativeFocusTracker is responsible for tracking changes to the active Browser
// and notifying NativeFocusTrackerHost of these changes. If a non-Browser
// window becomes active SetBrowser(NULL) should be invoked.
//
// ActiveTabTracker creates a NativeFocusTracker.
class NativeFocusTrackerHost {
public:
virtual void SetBrowser(Browser* browser) = 0;
protected:
virtual ~NativeFocusTrackerHost() {}
};
class NativeFocusTracker {
public:
virtual ~NativeFocusTracker() {}
// Factory method, caller owns returned object.
static NativeFocusTracker* Create(NativeFocusTrackerHost* host);
protected:
NativeFocusTracker() {}
private:
DISALLOW_COPY_AND_ASSIGN(NativeFocusTracker);
};
#endif // CHROME_BROWSER_UI_NATIVE_FOCUS_TRACKER_H_
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