michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsXBLResourceLoader_h
michael@0: #define nsXBLResourceLoader_h
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsICSSLoaderObserver.h"
michael@0: #include "nsCOMArray.h"
michael@0: #include "nsCycleCollectionParticipant.h"
michael@0: 
michael@0: class nsIContent;
michael@0: class nsIAtom;
michael@0: class nsXBLPrototypeResources;
michael@0: class nsXBLPrototypeBinding;
michael@0: struct nsXBLResource;
michael@0: class nsIObjectOutputStream;
michael@0: 
michael@0: // *********************************************************************/
michael@0: // The XBLResourceLoader class
michael@0: 
michael@0: class nsXBLResourceLoader : public nsICSSLoaderObserver
michael@0: {
michael@0: public:
michael@0:   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0:   NS_DECL_CYCLE_COLLECTION_CLASS(nsXBLResourceLoader)
michael@0: 
michael@0:   // nsICSSLoaderObserver
michael@0:   NS_IMETHOD StyleSheetLoaded(nsCSSStyleSheet* aSheet, bool aWasAlternate,
michael@0:                               nsresult aStatus) MOZ_OVERRIDE;
michael@0: 
michael@0:   void LoadResources(bool* aResult);
michael@0:   void AddResource(nsIAtom* aResourceType, const nsAString& aSrc);
michael@0:   void AddResourceListener(nsIContent* aElement);
michael@0: 
michael@0:   nsXBLResourceLoader(nsXBLPrototypeBinding* aBinding,
michael@0:                       nsXBLPrototypeResources* aResources);
michael@0:   virtual ~nsXBLResourceLoader();
michael@0: 
michael@0:   void NotifyBoundElements();
michael@0: 
michael@0:   nsresult Write(nsIObjectOutputStream* aStream);
michael@0: 
michael@0: // MEMBER VARIABLES
michael@0:   nsXBLPrototypeBinding* mBinding; // A pointer back to our binding.
michael@0:   nsXBLPrototypeResources* mResources; // A pointer back to our resources
michael@0:                                        // information.  May be null if the
michael@0:                                        // resources have already been
michael@0:                                        // destroyed.
michael@0:   
michael@0:   nsXBLResource* mResourceList; // The list of resources we need to load.
michael@0:   nsXBLResource* mLastResource;
michael@0: 
michael@0:   bool mLoadingResources;
michael@0:   // We need mInLoadResourcesFunc because we do a mixture of sync and
michael@0:   // async loads.
michael@0:   bool mInLoadResourcesFunc;
michael@0:   int16_t mPendingSheets; // The number of stylesheets that have yet to load.
michael@0: 
michael@0:   // Bound elements that are waiting on the stylesheets and scripts.
michael@0:   nsCOMArray<nsIContent> mBoundElements;
michael@0: };
michael@0: 
michael@0: #endif