1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/xul/templates/src/nsXULTemplateResultRDF.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,82 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsXULTemplateResultRDF_h__
1.10 +#define nsXULTemplateResultRDF_h__
1.11 +
1.12 +#include "nsCOMPtr.h"
1.13 +#include "nsIRDFResource.h"
1.14 +#include "nsXULTemplateQueryProcessorRDF.h"
1.15 +#include "nsRDFQuery.h"
1.16 +#include "nsRuleNetwork.h"
1.17 +#include "nsIXULTemplateResult.h"
1.18 +#include "nsRDFBinding.h"
1.19 +#include "mozilla/Attributes.h"
1.20 +
1.21 +/**
1.22 + * A single result of a query on an RDF graph
1.23 + */
1.24 +class nsXULTemplateResultRDF MOZ_FINAL : public nsIXULTemplateResult
1.25 +{
1.26 +public:
1.27 + NS_DECL_CYCLE_COLLECTING_ISUPPORTS
1.28 + NS_DECL_CYCLE_COLLECTION_CLASS(nsXULTemplateResultRDF)
1.29 +
1.30 + NS_DECL_NSIXULTEMPLATERESULT
1.31 +
1.32 + nsXULTemplateResultRDF(nsIRDFResource* aNode);
1.33 +
1.34 + nsXULTemplateResultRDF(nsRDFQuery* aQuery,
1.35 + const Instantiation& aInst,
1.36 + nsIRDFResource* aNode);
1.37 +
1.38 + ~nsXULTemplateResultRDF();
1.39 +
1.40 + nsITemplateRDFQuery* Query() { return mQuery; }
1.41 +
1.42 + nsXULTemplateQueryProcessorRDF* GetProcessor()
1.43 + {
1.44 + return (mQuery ? mQuery->Processor() : nullptr);
1.45 + }
1.46 +
1.47 + /**
1.48 + * Get the value of a variable, first by looking in the assignments and
1.49 + * then the bindings
1.50 + */
1.51 + void
1.52 + GetAssignment(nsIAtom* aVar, nsIRDFNode** aValue);
1.53 +
1.54 + /**
1.55 + * Synchronize the bindings after a change in the RDF graph. Bindings that
1.56 + * would be affected will be assigned appropriately based on the change.
1.57 + */
1.58 + bool
1.59 + SyncAssignments(nsIRDFResource* aSubject,
1.60 + nsIRDFResource* aPredicate,
1.61 + nsIRDFNode* aTarget);
1.62 +
1.63 + /**
1.64 + * Return true if the result has an instantiation involving a particular
1.65 + * memory element.
1.66 + */
1.67 + bool
1.68 + HasMemoryElement(const MemoryElement& aMemoryElement);
1.69 +
1.70 +protected:
1.71 +
1.72 + // query that generated the result
1.73 + nsCOMPtr<nsITemplateRDFQuery> mQuery;
1.74 +
1.75 + // resource node
1.76 + nsCOMPtr<nsIRDFResource> mNode;
1.77 +
1.78 + // data computed from query
1.79 + Instantiation mInst;
1.80 +
1.81 + // extra assignments made by rules (<binding> tags)
1.82 + nsBindingValues mBindingValues;
1.83 +};
1.84 +
1.85 +#endif // nsXULTemplateResultRDF_h__
