| // 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. |
| |
| // This file defines utility functions that can report details about the |
| // host operating environment. |
| |
| #ifndef CHROME_APP_CLIENT_UTIL_H_ |
| #define CHROME_APP_CLIENT_UTIL_H_ |
| |
| #include <windows.h> |
| |
| #include "base/string16.h" |
| |
| namespace sandbox { |
| struct SandboxInterfaceInfo; |
| } |
| |
| // Gets the path of the current exe with a trailing backslash. |
| string16 GetExecutablePath(); |
| |
| // Implements the common aspects of loading chrome.dll for both chrome and |
| // chromium scenarios, which are in charge of implementing two abstract |
| // methods: GetRegistryPath() and OnBeforeLaunch(). |
| class MainDllLoader { |
| public: |
| MainDllLoader(); |
| virtual ~MainDllLoader(); |
| |
| // Loads and calls the entry point of chrome.dll. |instance| is the exe |
| // instance retrieved from wWinMain and the |sbox_info| is the broker or |
| // target services interface pointer. |
| // The return value is what the main entry point of chrome.dll returns |
| // upon termination. |
| int Launch(HINSTANCE instance, sandbox::SandboxInterfaceInfo* sbox_info); |
| |
| // Look into the registry to find the latest version. |
| string16 GetVersion(); |
| |
| // Launches a new instance of the browser if the current instance in |
| // persistent mode an upgrade is detected. |
| void RelaunchChromeBrowserWithNewCommandLineIfNeeded(); |
| |
| // Called after chrome.dll has been loaded but before the entry point |
| // is invoked. Derived classes can implement custom actions here. |
| // |dll_path| refers to the path of the Chrome dll being loaded. |
| virtual void OnBeforeLaunch(const string16& dll_path) {} |
| |
| // Called after the chrome.dll entry point returns and before terminating |
| // this process. The return value will be used as the process return code. |
| // |dll_path| refers to the path of the Chrome dll being loaded. |
| virtual int OnBeforeExit(int return_code, const string16& dll_path) { |
| return return_code; |
| } |
| |
| protected: |
| // Derived classes must return the relative registry path that holds the |
| // most current version of chrome.dll. |
| virtual string16 GetRegistryPath() = 0; |
| |
| HMODULE Load(string16* out_version, string16* out_file); |
| |
| private: |
| // Chrome.dll handle. |
| HMODULE dll_; |
| }; |
| |
| // Factory for the MainDllLoader. Caller owns the pointer and should call |
| // delete to free it. |
| MainDllLoader* MakeMainDllLoader(); |
| |
| #endif // CHROME_APP_CLIENT_UTIL_H_ |