1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/xslt/xpath/nsXPathResult.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,113 @@
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 nsXPathResult_h__
1.10 +#define nsXPathResult_h__
1.11 +
1.12 +#include "txExprResult.h"
1.13 +#include "nsIDOMXPathResult.h"
1.14 +#include "nsStubMutationObserver.h"
1.15 +#include "nsCOMPtr.h"
1.16 +#include "nsCOMArray.h"
1.17 +#include "nsWeakPtr.h"
1.18 +#include "nsCycleCollectionParticipant.h"
1.19 +#include "mozilla/Attributes.h"
1.20 +
1.21 +class nsIDocument;
1.22 +
1.23 +// {662f2c9a-c7cd-4cab-9349-e733df5a838c}
1.24 +#define NS_IXPATHRESULT_IID \
1.25 +{ 0x662f2c9a, 0xc7cd, 0x4cab, {0x93, 0x49, 0xe7, 0x33, 0xdf, 0x5a, 0x83, 0x8c }}
1.26 +
1.27 +class nsIXPathResult : public nsISupports
1.28 +{
1.29 +public:
1.30 + NS_DECLARE_STATIC_IID_ACCESSOR(NS_IXPATHRESULT_IID)
1.31 + virtual nsresult SetExprResult(txAExprResult *aExprResult,
1.32 + uint16_t aResultType,
1.33 + nsINode* aContextNode) = 0;
1.34 + virtual nsresult GetExprResult(txAExprResult **aExprResult) = 0;
1.35 + virtual nsresult Clone(nsIXPathResult **aResult) = 0;
1.36 +};
1.37 +
1.38 +NS_DEFINE_STATIC_IID_ACCESSOR(nsIXPathResult, NS_IXPATHRESULT_IID)
1.39 +
1.40 +/**
1.41 + * A class for evaluating an XPath expression string
1.42 + */
1.43 +class nsXPathResult MOZ_FINAL : public nsIDOMXPathResult,
1.44 + public nsStubMutationObserver,
1.45 + public nsIXPathResult
1.46 +{
1.47 +public:
1.48 + nsXPathResult();
1.49 + nsXPathResult(const nsXPathResult &aResult);
1.50 + ~nsXPathResult();
1.51 +
1.52 + // nsISupports interface
1.53 + NS_DECL_CYCLE_COLLECTING_ISUPPORTS
1.54 + NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsXPathResult, nsIDOMXPathResult)
1.55 +
1.56 + // nsIDOMXPathResult interface
1.57 + NS_DECL_NSIDOMXPATHRESULT
1.58 +
1.59 + // nsIMutationObserver interface
1.60 + NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
1.61 + NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
1.62 + NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
1.63 + NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
1.64 + NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
1.65 + NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED
1.66 +
1.67 + // nsIXPathResult interface
1.68 + nsresult SetExprResult(txAExprResult *aExprResult, uint16_t aResultType,
1.69 + nsINode* aContextNode) MOZ_OVERRIDE;
1.70 + nsresult GetExprResult(txAExprResult **aExprResult) MOZ_OVERRIDE;
1.71 + nsresult Clone(nsIXPathResult **aResult) MOZ_OVERRIDE;
1.72 + void RemoveObserver();
1.73 +private:
1.74 + static bool isSnapshot(uint16_t aResultType)
1.75 + {
1.76 + return aResultType == UNORDERED_NODE_SNAPSHOT_TYPE ||
1.77 + aResultType == ORDERED_NODE_SNAPSHOT_TYPE;
1.78 + }
1.79 + static bool isIterator(uint16_t aResultType)
1.80 + {
1.81 + return aResultType == UNORDERED_NODE_ITERATOR_TYPE ||
1.82 + aResultType == ORDERED_NODE_ITERATOR_TYPE;
1.83 + }
1.84 + static bool isNode(uint16_t aResultType)
1.85 + {
1.86 + return aResultType == FIRST_ORDERED_NODE_TYPE ||
1.87 + aResultType == ANY_UNORDERED_NODE_TYPE;
1.88 + }
1.89 + bool isSnapshot() const
1.90 + {
1.91 + return isSnapshot(mResultType);
1.92 + }
1.93 + bool isIterator() const
1.94 + {
1.95 + return isIterator(mResultType);
1.96 + }
1.97 + bool isNode() const
1.98 + {
1.99 + return isNode(mResultType);
1.100 + }
1.101 +
1.102 + void Invalidate(const nsIContent* aChangeRoot);
1.103 +
1.104 + nsRefPtr<txAExprResult> mResult;
1.105 + nsCOMArray<nsIDOMNode> mResultNodes;
1.106 + nsCOMPtr<nsIDocument> mDocument;
1.107 + uint32_t mCurrentPos;
1.108 + uint16_t mResultType;
1.109 + nsWeakPtr mContextNode;
1.110 + bool mInvalidIteratorState;
1.111 + bool mBooleanResult;
1.112 + double mNumberResult;
1.113 + nsString mStringResult;
1.114 +};
1.115 +
1.116 +#endif
