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comparison: content/xul/templates/src/nsXULTemplateQueryProcessorXML.h
content/xul/templates/src/nsXULTemplateQueryProcessorXML.h
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- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:52f1e5342635 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 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 #ifndef nsXULTemplateQueryProcessorXML_h__ | |
| 7 #define nsXULTemplateQueryProcessorXML_h__ | |
| 8 | |
| 9 #include "nsIXULTemplateBuilder.h" | |
| 10 #include "nsIXULTemplateQueryProcessor.h" | |
| 11 | |
| 12 #include "nsISimpleEnumerator.h" | |
| 13 #include "nsString.h" | |
| 14 #include "nsCOMArray.h" | |
| 15 #include "nsRefPtrHashtable.h" | |
| 16 #include "nsIDOMElement.h" | |
| 17 #include "nsIDOMEventListener.h" | |
| 18 #include "nsIDOMXPathExpression.h" | |
| 19 #include "nsIDOMXPathEvaluator.h" | |
| 20 #include "nsIDOMXPathResult.h" | |
| 21 #include "nsXMLBinding.h" | |
| 22 #include "nsCycleCollectionParticipant.h" | |
| 23 #include "nsIXMLHttpRequest.h" | |
| 24 #include "mozilla/Attributes.h" | |
| 25 | |
| 26 class nsXULTemplateQueryProcessorXML; | |
| 27 | |
| 28 #define NS_IXMLQUERY_IID \ | |
| 29 {0x0358d692, 0xccce, 0x4a97, \ | |
| 30 { 0xb2, 0x51, 0xba, 0x8f, 0x17, 0x0f, 0x3b, 0x6f }} | |
| 31 | |
| 32 class nsXMLQuery MOZ_FINAL : public nsISupports | |
| 33 { | |
| 34 public: | |
| 35 NS_DECLARE_STATIC_IID_ACCESSOR(NS_IXMLQUERY_IID) | |
| 36 | |
| 37 NS_DECL_ISUPPORTS | |
| 38 | |
| 39 // return a weak reference to the processor the query was created from | |
| 40 nsXULTemplateQueryProcessorXML* Processor() { return mProcessor; } | |
| 41 | |
| 42 // return a weak reference t the member variable for the query | |
| 43 nsIAtom* GetMemberVariable() { return mMemberVariable; } | |
| 44 | |
| 45 // return a weak reference to the expression used to generate results | |
| 46 nsIDOMXPathExpression* GetResultsExpression() { return mResultsExpr; } | |
| 47 | |
| 48 // return a weak reference to the additional required bindings | |
| 49 nsXMLBindingSet* GetBindingSet() { return mRequiredBindings; } | |
| 50 | |
| 51 // add a required binding for the query | |
| 52 nsresult | |
| 53 AddBinding(nsIAtom* aVar, nsIDOMXPathExpression* aExpr) | |
| 54 { | |
| 55 if (!mRequiredBindings) { | |
| 56 mRequiredBindings = new nsXMLBindingSet(); | |
| 57 NS_ENSURE_TRUE(mRequiredBindings, NS_ERROR_OUT_OF_MEMORY); | |
| 58 } | |
| 59 | |
| 60 return mRequiredBindings->AddBinding(aVar, aExpr); | |
| 61 } | |
| 62 | |
| 63 nsXMLQuery(nsXULTemplateQueryProcessorXML* aProcessor, | |
| 64 nsIAtom* aMemberVariable, | |
| 65 nsIDOMXPathExpression* aResultsExpr) | |
| 66 : mProcessor(aProcessor), | |
| 67 mMemberVariable(aMemberVariable), | |
| 68 mResultsExpr(aResultsExpr) | |
| 69 { } | |
| 70 | |
| 71 protected: | |
| 72 nsXULTemplateQueryProcessorXML* mProcessor; | |
| 73 | |
| 74 nsCOMPtr<nsIAtom> mMemberVariable; | |
| 75 | |
| 76 nsCOMPtr<nsIDOMXPathExpression> mResultsExpr; | |
| 77 | |
| 78 nsRefPtr<nsXMLBindingSet> mRequiredBindings; | |
| 79 }; | |
| 80 | |
| 81 NS_DEFINE_STATIC_IID_ACCESSOR(nsXMLQuery, NS_IXMLQUERY_IID) | |
| 82 | |
| 83 class nsXULTemplateResultSetXML MOZ_FINAL : public nsISimpleEnumerator | |
| 84 { | |
| 85 private: | |
| 86 | |
| 87 // reference back to the query | |
| 88 nsCOMPtr<nsXMLQuery> mQuery; | |
| 89 | |
| 90 // the binding set created from <assign> nodes | |
| 91 nsRefPtr<nsXMLBindingSet> mBindingSet; | |
| 92 | |
| 93 // set of results contained in this enumerator | |
| 94 nsCOMPtr<nsIDOMXPathResult> mResults; | |
| 95 | |
| 96 // current position within the list of results | |
| 97 uint32_t mPosition; | |
| 98 | |
| 99 public: | |
| 100 | |
| 101 // nsISupports interface | |
| 102 NS_DECL_ISUPPORTS | |
| 103 | |
| 104 // nsISimpleEnumerator interface | |
| 105 NS_DECL_NSISIMPLEENUMERATOR | |
| 106 | |
| 107 nsXULTemplateResultSetXML(nsXMLQuery* aQuery, | |
| 108 nsIDOMXPathResult* aResults, | |
| 109 nsXMLBindingSet* aBindingSet) | |
| 110 : mQuery(aQuery), | |
| 111 mBindingSet(aBindingSet), | |
| 112 mResults(aResults), | |
| 113 mPosition(0) | |
| 114 {} | |
| 115 }; | |
| 116 | |
| 117 class nsXULTemplateQueryProcessorXML MOZ_FINAL : public nsIXULTemplateQueryProcessor, | |
| 118 public nsIDOMEventListener | |
| 119 { | |
| 120 public: | |
| 121 | |
| 122 nsXULTemplateQueryProcessorXML() | |
| 123 : mGenerationStarted(false) | |
| 124 {} | |
| 125 | |
| 126 // nsISupports interface | |
| 127 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 128 NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsXULTemplateQueryProcessorXML, | |
| 129 nsIXULTemplateQueryProcessor) | |
| 130 | |
| 131 // nsIXULTemplateQueryProcessor interface | |
| 132 NS_DECL_NSIXULTEMPLATEQUERYPROCESSOR | |
| 133 | |
| 134 // nsIDOMEventListener interface | |
| 135 NS_DECL_NSIDOMEVENTLISTENER | |
| 136 | |
| 137 nsXMLBindingSet* | |
| 138 GetOptionalBindingsForRule(nsIDOMNode* aRuleNode); | |
| 139 | |
| 140 // create an XPath expression from aExpr, using aNode for | |
| 141 // resolving namespaces | |
| 142 nsresult | |
| 143 CreateExpression(const nsAString& aExpr, | |
| 144 nsIDOMNode* aNode, | |
| 145 nsIDOMXPathExpression** aCompiledExpr); | |
| 146 | |
| 147 private: | |
| 148 | |
| 149 bool mGenerationStarted; | |
| 150 | |
| 151 nsRefPtrHashtable<nsISupportsHashKey, nsXMLBindingSet> mRuleToBindingsMap; | |
| 152 | |
| 153 nsCOMPtr<nsIDOMElement> mRoot; | |
| 154 | |
| 155 nsCOMPtr<nsIDOMXPathEvaluator> mEvaluator; | |
| 156 | |
| 157 nsCOMPtr<nsIXULTemplateBuilder> mTemplateBuilder; | |
| 158 | |
| 159 nsCOMPtr<nsIXMLHttpRequest> mRequest; | |
| 160 }; | |
| 161 | |
| 162 | |
| 163 #endif // nsXULTemplateQueryProcessorXML_h__ |
