1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is Neil Deakin
18 : * Portions created by the Initial Developer are Copyright (C) 2005
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : *
23 : * Alternatively, the contents of this file may be used under the terms of
24 : * either of the GNU General Public License Version 2 or later (the "GPL"),
25 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26 : * in which case the provisions of the GPL or the LGPL are applicable instead
27 : * of those above. If you wish to allow use of your version of this file only
28 : * under the terms of either the GPL or the LGPL, and not to allow others to
29 : * use your version of this file under the terms of the MPL, indicate your
30 : * decision by deleting the provisions above and replace them with the notice
31 : * and other provisions required by the GPL or the LGPL. If you do not delete
32 : * the provisions above, a recipient may use your version of this file under
33 : * the terms of any one of the MPL, the GPL or the LGPL.
34 : *
35 : * ***** END LICENSE BLOCK ***** */
36 :
37 : #ifndef nsXULTemplateResultRDF_h__
38 : #define nsXULTemplateResultRDF_h__
39 :
40 : #include "nsCOMPtr.h"
41 : #include "nsIRDFResource.h"
42 : #include "nsXULTemplateQueryProcessorRDF.h"
43 : #include "nsRDFQuery.h"
44 : #include "nsRuleNetwork.h"
45 : #include "nsIXULTemplateResult.h"
46 : #include "nsRDFBinding.h"
47 :
48 : /**
49 : * A single result of a query on an RDF graph
50 : */
51 : class nsXULTemplateResultRDF : public nsIXULTemplateResult
52 : {
53 : public:
54 0 : NS_DECL_CYCLE_COLLECTING_ISUPPORTS
55 1464 : NS_DECL_CYCLE_COLLECTION_CLASS(nsXULTemplateResultRDF)
56 :
57 : NS_DECL_NSIXULTEMPLATERESULT
58 :
59 : nsXULTemplateResultRDF(nsIRDFResource* aNode);
60 :
61 : nsXULTemplateResultRDF(nsRDFQuery* aQuery,
62 : const Instantiation& aInst,
63 : nsIRDFResource* aNode);
64 :
65 : ~nsXULTemplateResultRDF();
66 :
67 0 : nsITemplateRDFQuery* Query() { return mQuery; }
68 :
69 0 : nsXULTemplateQueryProcessorRDF* GetProcessor()
70 : {
71 0 : return (mQuery ? mQuery->Processor() : nsnull);
72 : }
73 :
74 : /**
75 : * Get the value of a variable, first by looking in the assignments and
76 : * then the bindings
77 : */
78 : void
79 : GetAssignment(nsIAtom* aVar, nsIRDFNode** aValue);
80 :
81 : /**
82 : * Synchronize the bindings after a change in the RDF graph. Bindings that
83 : * would be affected will be assigned appropriately based on the change.
84 : */
85 : bool
86 : SyncAssignments(nsIRDFResource* aSubject,
87 : nsIRDFResource* aPredicate,
88 : nsIRDFNode* aTarget);
89 :
90 : /**
91 : * Return true if the result has an instantiation involving a particular
92 : * memory element.
93 : */
94 : bool
95 : HasMemoryElement(const MemoryElement& aMemoryElement);
96 :
97 : protected:
98 :
99 : // query that generated the result
100 : nsCOMPtr<nsITemplateRDFQuery> mQuery;
101 :
102 : // resource node
103 : nsCOMPtr<nsIRDFResource> mNode;
104 :
105 : // data computed from query
106 : Instantiation mInst;
107 :
108 : // extra assignments made by rules (<binding> tags)
109 : nsBindingValues mBindingValues;
110 : };
111 :
112 : #endif // nsXULTemplateResultRDF_h__
|