xpfe/appshell/nsWindowMediator.h

   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 nsWindowMediator_h_
   7 #define nsWindowMediator_h_
   8
   9 #include "mozilla/Mutex.h"
  10 #include "nsCOMPtr.h"
  11 #include "nsIWindowMediator.h"
  12 #include "nsIObserver.h"
  13 #include "nsTArray.h"
  14 #include "nsXPIDLString.h"
  15 #include "nsWeakReference.h"
  16 #include "nsCOMArray.h"
  17
  18 class nsAppShellWindowEnumerator;
  19 class nsASXULWindowEarlyToLateEnumerator;
  20 class nsASDOMWindowEarlyToLateEnumerator;
  21 class nsASDOMWindowFrontToBackEnumerator;
  22 class nsASXULWindowFrontToBackEnumerator;
  23 class nsASDOMWindowBackToFrontEnumerator;
  24 class nsASXULWindowBackToFrontEnumerator;
  25 class nsIWindowMediatorListener;
  26 struct nsWindowInfo;
  27 struct PRLock;
  28
  29 class nsWindowMediator :
  30   public nsIWindowMediator,
  31   public nsIObserver,
  32   public nsSupportsWeakReference
  33 {
  34 friend class nsAppShellWindowEnumerator;
  35 friend class nsASXULWindowEarlyToLateEnumerator;
  36 friend class nsASDOMWindowEarlyToLateEnumerator;
  37 friend class nsASDOMWindowFrontToBackEnumerator;
  38 friend class nsASXULWindowFrontToBackEnumerator;
  39 friend class nsASDOMWindowBackToFrontEnumerator;
  40 friend class nsASXULWindowBackToFrontEnumerator;
  41
  42 protected:
  43   virtual ~nsWindowMediator();
  44
  45 public:
  46   nsWindowMediator();
  47
  48   nsresult Init();
  49
  50   NS_DECL_ISUPPORTS
  51   NS_DECL_NSIWINDOWMEDIATOR
  52   NS_DECL_NSIOBSERVER
  53
  54   static nsresult GetDOMWindow(nsIXULWindow* inWindow,
  55                                nsCOMPtr<nsIDOMWindow>& outDOMWindow);
  56
  57 private:
  58   int32_t AddEnumerator(nsAppShellWindowEnumerator* inEnumerator);
  59   int32_t RemoveEnumerator(nsAppShellWindowEnumerator* inEnumerator);
  60   nsWindowInfo *MostRecentWindowInfo(const char16_t* inType);
  61
  62   nsresult      UnregisterWindow(nsWindowInfo *inInfo);
  63   nsWindowInfo *GetInfoFor(nsIXULWindow *aWindow);
  64   nsWindowInfo *GetInfoFor(nsIWidget *aWindow);
  65   void          SortZOrderFrontToBack();
  66   void          SortZOrderBackToFront();
  67
  68   nsTArray<nsAppShellWindowEnumerator*> mEnumeratorList;
  69   nsWindowInfo *mOldestWindow;
  70   nsWindowInfo *mTopmostWindow;
  71   int32_t       mTimeStamp;
  72   bool          mSortingZOrder;
  73   bool          mReady;
  74   mozilla::Mutex mListLock;
  75
  76   nsCOMArray<nsIWindowMediatorListener> mListeners;
  77 };
  78
  79 #endif