1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3  * License, v. 2.0. If a copy of the MPL was not distributed with this
4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 
6 #ifndef nsScreenManagerWin_h___
7 #define nsScreenManagerWin_h___
8 
9 #include "nsIScreenManager.h"
10 
11 #include <windows.h>
12 #include "nsCOMPtr.h"
13 #include "nsTArray.h"
14 #include "mozilla/Attributes.h"
15 
16 class nsIScreen;
17 
18 //------------------------------------------------------------------------
19 
20 class ScreenListItem
21 {
22 public:
ScreenListItem(HMONITOR inMon,nsIScreen * inScreen)23   ScreenListItem ( HMONITOR inMon, nsIScreen* inScreen )
24     : mMon(inMon), mScreen(inScreen) { } ;
25 
26   HMONITOR mMon;
27   nsCOMPtr<nsIScreen> mScreen;
28 };
29 
30 class nsScreenManagerWin final : public nsIScreenManager
31 {
32 public:
33   nsScreenManagerWin ( );
34 
35   NS_DECL_ISUPPORTS
36   NS_DECL_NSISCREENMANAGER
37 
38 private:
39   ~nsScreenManagerWin();
40 
41   nsIScreen* CreateNewScreenObject ( HMONITOR inScreen ) ;
42 
43   uint32_t mNumberOfScreens;
44 
45     // cache the screens to avoid the memory allocations
46   AutoTArray<ScreenListItem, 8> mScreenList;
47 
48 };
49 
50 #endif  // nsScreenManagerWin_h___
51