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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.
#ifndef CHROME_FRAME_TEST_WINDOW_WATCHDOG_H_
#define CHROME_FRAME_TEST_WINDOW_WATCHDOG_H_
#include <windows.h>
#include <string>
#include <vector>
struct FunctionStub;
// Interface implemented by WindowWatchdog users. An observer can register
// for notifications on multiple window classes.
class WindowObserver { // NOLINT
public:
virtual void OnWindowDetected(HWND hwnd, const std::string& caption) = 0;
};
// Watch a for window to be shown with the given window class name.
// If found, call the observer interested in it.
class WindowWatchdog {
public:
WindowWatchdog();
~WindowWatchdog();
// Register for notifications for |window_class|. An observer can register
// for multiple notifications
void AddObserver(WindowObserver* observer, const std::string& window_class);
// Remove all entries for |observer|
void RemoveObserver(WindowObserver* observer);
protected:
bool InitializeHook();
void UninitializeHook();
static void CALLBACK WinEventHook(WindowWatchdog* me, HWINEVENTHOOK hook,
DWORD event, HWND hwnd, LONG object_id, LONG child_id,
DWORD event_thread_id, DWORD event_time);
void OnDialogFound(HWND hwnd, const std::string& caption);
protected:
struct WindowObserverEntry {
WindowObserver* observer;
std::string window_class;
};
typedef std::vector<WindowObserverEntry> ObserverMap;
HWINEVENTHOOK hook_;
ObserverMap observers_;
FunctionStub* hook_stub_;
};
#endif // CHROME_FRAME_TEST_WINDOW_WATCHDOG_H_
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