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// Copyright (c) 2012 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_ZOOM_ZOOM_OBSERVER_H_
#define CHROME_BROWSER_UI_ZOOM_ZOOM_OBSERVER_H_
#pragma once
#include "chrome/browser/ui/zoom/zoom_controller.h"
class TabContents;
// Interface for objects that wish to be notified of changes in ZoomController.
class ZoomObserver {
public:
// Notification that the Omnibox zoom icon should change.
virtual void OnZoomIconChanged(TabContents* source,
ZoomController::ZoomIconState state) = 0;
// Notification that the zoom percentage has changed.
virtual void OnZoomChanged(TabContents* source,
int zoom_percent,
bool can_show_bubble) = 0;
protected:
virtual ~ZoomObserver() {}
};
#endif // CHROME_BROWSER_UI_ZOOM_ZOOM_OBSERVER_H_
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