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