dom/xul/nsXULCommandDispatcher.h

   1 /* -*- Mode: C++; tab-width: 4; 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 /*
   7
   8    This is the focus manager for XUL documents.
   9
  10 */
  11
  12 #ifndef nsXULCommandDispatcher_h__
  13 #define nsXULCommandDispatcher_h__
  14
  15 #include "nsCOMPtr.h"
  16 #include "nsIDOMXULCommandDispatcher.h"
  17 #include "nsWeakReference.h"
  18 #include "nsString.h"
  19 #include "nsCycleCollectionParticipant.h"
  20 #include "nsTArray.h"
  21 #include "mozilla/RefPtr.h"
  22
  23 class nsPIDOMWindowOuter;
  24 class nsPIWindowRoot;
  25
  26 namespace mozilla::dom {
  27 class Document;
  28 class Element;
  29 }  // namespace mozilla::dom
  30
  31 class nsXULCommandDispatcher : public nsIDOMXULCommandDispatcher,
  32                                public nsSupportsWeakReference {
  33   using Document = mozilla::dom::Document;
  34   using Element = mozilla::dom::Element;
  35
  36  public:
  37   explicit nsXULCommandDispatcher(Document* aDocument);
  38
  39   // nsISupports
  40   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  41   NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsXULCommandDispatcher,
  42                                            nsIDOMXULCommandDispatcher)
  43
  44   // nsIDOMXULCommandDispatcher interface
  45   NS_DECL_NSIDOMXULCOMMANDDISPATCHER
  46
  47   void Disconnect();
  48
  49  protected:
  50   virtual ~nsXULCommandDispatcher();
  51
  52   already_AddRefed<nsPIWindowRoot> GetWindowRoot();
  53
  54   Element* GetRootFocusedContentAndWindow(nsPIDOMWindowOuter** aWindow);
  55   nsresult MoveFocusIntoSubtree(Element*, bool aForward);
  56
  57   RefPtr<Document> mDocument;
  58
  59   class Updater {
  60    public:
  61     Updater(Element* aElement, const nsAString& aEvents,
  62             const nsAString& aTargets)
  63         : mElement(aElement),
  64           mEvents(aEvents),
  65           mTargets(aTargets),
  66           mNext(nullptr) {}
  67
  68     RefPtr<Element> mElement;
  69     nsString mEvents;
  70     nsString mTargets;
  71     Updater* mNext;
  72   };
  73
  74   Updater* mUpdaters;
  75
  76   bool Matches(const nsString& aList, const nsAString& aElement);
  77
  78   bool mLocked;
  79   nsTArray<nsString> mPendingUpdates;
  80 };
  81
  82 #endif  // nsXULCommandDispatcher_h__