components/browser_watcher/endsession_watcher_window_win.h

   1 // Copyright (c) 2015 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 COMPONENTS_BROWSER_WATCHER_ENDSESSION_WATCHER_WINDOW_WIN_H_
   6 #define COMPONENTS_BROWSER_WATCHER_ENDSESSION_WATCHER_WINDOW_WIN_H_
   7
   8 #include <windows.h>
   9
  10 #include "base/callback.h"
  11 #include "base/macros.h"
  12
  13 namespace browser_watcher {
  14
  15 class EndSessionWatcherWindow {
  16  public:
  17   typedef base::Callback<void(UINT, LPARAM)> EndSessionMessageCallback;
  18
  19   explicit EndSessionWatcherWindow(
  20       const EndSessionMessageCallback& on_end_session_message);
  21   virtual ~EndSessionWatcherWindow();
  22
  23   // Exposed for testing.
  24   HWND window() const { return window_; }
  25
  26  private:
  27   LRESULT OnEndSessionMessage(UINT message, WPARAM wparam, LPARAM lparam);
  28
  29   LRESULT WndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
  30
  31   static LRESULT CALLBACK WndProcThunk(HWND hwnd,
  32                                        UINT message,
  33                                        WPARAM wparam,
  34                                        LPARAM lparam);
  35
  36   HMODULE instance_;
  37   HWND window_;
  38
  39   EndSessionMessageCallback on_end_session_message_;
  40
  41   DISALLOW_COPY_AND_ASSIGN(EndSessionWatcherWindow);
  42 };
  43
  44 }  // namespace browser_watcher
  45
  46 #endif  // COMPONENTS_BROWSER_WATCHER_ENDSESSION_WATCHER_WINDOW_WIN_H_