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// Copyright (c) 2009 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_GTK_ACTIVE_WINDOW_WATCHER_H_
#define CHROME_BROWSER_GTK_ACTIVE_WINDOW_WATCHER_H_
#include "base/basictypes.h"
typedef void* gpointer;
typedef void GdkXEvent;
typedef union _GdkEvent GdkEvent;
// This is a helper class that is used to keep track of which window the window
// manager thinks is active.
class ActiveWindowWatcher {
public:
ActiveWindowWatcher();
private:
void Init();
// Sends a notification out through the NotificationService that the active
// window has changed.
void NotifyActiveWindowChanged();
// Callback for PropertyChange XEvents.
static GdkFilterReturn OnWindowXEvent(GdkXEvent* xevent,
GdkEvent* event,
gpointer window_watcher);
DISALLOW_COPY_AND_ASSIGN(ActiveWindowWatcher);
};
#endif // CHROME_BROWSER_GTK_ACTIVE_WINDOW_WATCHER_H_
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