michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 nsXULTemplateResultRDF_h__
michael@0: #define nsXULTemplateResultRDF_h__
michael@0: 
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsIRDFResource.h"
michael@0: #include "nsXULTemplateQueryProcessorRDF.h"
michael@0: #include "nsRDFQuery.h"
michael@0: #include "nsRuleNetwork.h"
michael@0: #include "nsIXULTemplateResult.h"
michael@0: #include "nsRDFBinding.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: 
michael@0: /**
michael@0:  * A single result of a query on an RDF graph
michael@0:  */
michael@0: class nsXULTemplateResultRDF MOZ_FINAL : public nsIXULTemplateResult
michael@0: {
michael@0: public:
michael@0:     NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0:     NS_DECL_CYCLE_COLLECTION_CLASS(nsXULTemplateResultRDF)
michael@0: 
michael@0:     NS_DECL_NSIXULTEMPLATERESULT
michael@0: 
michael@0:     nsXULTemplateResultRDF(nsIRDFResource* aNode);
michael@0: 
michael@0:     nsXULTemplateResultRDF(nsRDFQuery* aQuery,
michael@0:                            const Instantiation& aInst,
michael@0:                            nsIRDFResource* aNode);
michael@0: 
michael@0:     ~nsXULTemplateResultRDF();
michael@0: 
michael@0:     nsITemplateRDFQuery* Query() { return mQuery; }
michael@0: 
michael@0:     nsXULTemplateQueryProcessorRDF* GetProcessor()
michael@0:     {
michael@0:         return (mQuery ? mQuery->Processor() : nullptr);
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * Get the value of a variable, first by looking in the assignments and
michael@0:      * then the bindings
michael@0:      */
michael@0:     void
michael@0:     GetAssignment(nsIAtom* aVar, nsIRDFNode** aValue);
michael@0: 
michael@0:     /**
michael@0:      * Synchronize the bindings after a change in the RDF graph. Bindings that
michael@0:      * would be affected will be assigned appropriately based on the change.
michael@0:      */
michael@0:     bool
michael@0:     SyncAssignments(nsIRDFResource* aSubject,
michael@0:                     nsIRDFResource* aPredicate,
michael@0:                     nsIRDFNode* aTarget);
michael@0: 
michael@0:     /**
michael@0:      * Return true if the result has an instantiation involving a particular
michael@0:      * memory element.
michael@0:      */
michael@0:     bool
michael@0:     HasMemoryElement(const MemoryElement& aMemoryElement);
michael@0: 
michael@0: protected:
michael@0: 
michael@0:     // query that generated the result
michael@0:     nsCOMPtr<nsITemplateRDFQuery> mQuery;
michael@0: 
michael@0:     // resource node
michael@0:     nsCOMPtr<nsIRDFResource> mNode;
michael@0: 
michael@0:     // data computed from query
michael@0:     Instantiation mInst;
michael@0: 
michael@0:     // extra assignments made by rules (<binding> tags)
michael@0:     nsBindingValues mBindingValues;
michael@0: };
michael@0: 
michael@0: #endif // nsXULTemplateResultRDF_h__