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 "nsCOMPtr.h"
  10 #include "nsIWindowMediator.h"
  11 #include "nsIObserver.h"
  12 #include "nsTArray.h"
  13 #include "nsString.h"
  14 #include "nsWeakReference.h"
  15 #include "nsTObserverArray.h"
  16
  17 class nsAppShellWindowEnumerator;
  18 class nsASAppWindowEarlyToLateEnumerator;
  19 class nsASDOMWindowEarlyToLateEnumerator;
  20 class nsASAppWindowFrontToBackEnumerator;
  21 class nsASAppWindowBackToFrontEnumerator;
  22 class nsIWindowMediatorListener;
  23 struct nsWindowInfo;
  24
  25 class nsWindowMediator : public nsIWindowMediator,
  26                          public nsIObserver,
  27                          public nsSupportsWeakReference {
  28   friend class nsAppShellWindowEnumerator;
  29   friend class nsASAppWindowEarlyToLateEnumerator;
  30   friend class nsASDOMWindowEarlyToLateEnumerator;
  31   friend class nsASAppWindowFrontToBackEnumerator;
  32   friend class nsASAppWindowBackToFrontEnumerator;
  33
  34  protected:
  35   virtual ~nsWindowMediator();
  36
  37  public:
  38   nsWindowMediator();
  39
  40   nsresult Init();
  41
  42   NS_DECL_ISUPPORTS
  43   NS_DECL_NSIWINDOWMEDIATOR
  44   NS_DECL_NSIOBSERVER
  45
  46   static nsresult GetDOMWindow(nsIAppWindow* inWindow,
  47                                nsCOMPtr<nsPIDOMWindowOuter>& outDOMWindow);
  48
  49  private:
  50   void AddEnumerator(nsAppShellWindowEnumerator* inEnumerator);
  51   int32_t RemoveEnumerator(nsAppShellWindowEnumerator* inEnumerator);
  52   nsWindowInfo* MostRecentWindowInfo(const char16_t* inType,
  53                                      bool aSkipPrivateBrowsingOrClosed = false);
  54
  55   nsresult UnregisterWindow(nsWindowInfo* inInfo);
  56   nsWindowInfo* GetInfoFor(nsIAppWindow* aWindow);
  57   nsWindowInfo* GetInfoFor(nsIWidget* aWindow);
  58   void SortZOrderFrontToBack();
  59   void SortZOrderBackToFront();
  60
  61   nsTArray<nsAppShellWindowEnumerator*> mEnumeratorList;
  62   nsWindowInfo* mOldestWindow;
  63   nsWindowInfo* mTopmostWindow;
  64   int32_t mTimeStamp;
  65   bool mSortingZOrder;
  66   bool mReady;
  67
  68   typedef nsTObserverArray<nsCOMPtr<nsIWindowMediatorListener>> ListenerArray;
  69   ListenerArray mListeners;
  70 };
  71
  72 #endif