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| 1 // Copyright (c) 2011 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_APP_METRO_DRIVER_WIN_H_ |
| 6 #define CHROME_APP_METRO_DRIVER_WIN_H_ |
| 7 |
| 8 #include <Windows.h> |
| 9 |
| 10 // Helper class to manage the metro driver dll. When present in the system, |
| 11 // the main process thread needs to call InitMetro(), normal execution of |
| 12 // chrome initialization will continue on a second thread while the main |
| 13 // thread will be servicing the metro message loop. |
| 14 class MetroDriver { |
| 15 public: |
| 16 typedef int (*MainFn)(HINSTANCE instance); |
| 17 |
| 18 MetroDriver(); |
| 19 // returns true if chrome is being launched in metro. If so we should |
| 20 // call RunInMetro(). If not then we should just run chrome as usual. |
| 21 bool in_metro_mode() const { return (NULL != init_metro_fn_); } |
| 22 |
| 23 // Enter the metro main function, which will only return when chrome metro |
| 24 // is closed. Once metro has initialized, the dll creates a new thread |
| 25 // which runs |main_fn|. This method returns when the chrome metro session |
| 26 // is closed by the user. |
| 27 int RunInMetro(HINSTANCE instance, MainFn main_fn); |
| 28 |
| 29 private: |
| 30 void* init_metro_fn_; |
| 31 }; |
| 32 |
| 33 #endif // CHROME_APP_METRO_DRIVER_WIN_H_ |
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