dom/xslt/xpath/nsXPathResult.h@97036ab72558 (annotated)
dom/xslt/xpath/nsXPathResult.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef nsXPathResult_h__ |
| michael@0 | 7 | #define nsXPathResult_h__ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "txExprResult.h" |
| michael@0 | 10 | #include "nsIDOMXPathResult.h" |
| michael@0 | 11 | #include "nsStubMutationObserver.h" |
| michael@0 | 12 | #include "nsCOMPtr.h" |
| michael@0 | 13 | #include "nsCOMArray.h" |
| michael@0 | 14 | #include "nsWeakPtr.h" |
| michael@0 | 15 | #include "nsCycleCollectionParticipant.h" |
| michael@0 | 16 | #include "mozilla/Attributes.h" |
| michael@0 | 17 | |
| michael@0 | 18 | class nsIDocument; |
| michael@0 | 19 | |
| michael@0 | 20 | // {662f2c9a-c7cd-4cab-9349-e733df5a838c} |
| michael@0 | 21 | #define NS_IXPATHRESULT_IID \ |
| michael@0 | 22 | { 0x662f2c9a, 0xc7cd, 0x4cab, {0x93, 0x49, 0xe7, 0x33, 0xdf, 0x5a, 0x83, 0x8c }} |
| michael@0 | 23 | |
| michael@0 | 24 | class nsIXPathResult : public nsISupports |
| michael@0 | 25 | { |
| michael@0 | 26 | public: |
| michael@0 | 27 | NS_DECLARE_STATIC_IID_ACCESSOR(NS_IXPATHRESULT_IID) |
| michael@0 | 28 | virtual nsresult SetExprResult(txAExprResult *aExprResult, |
| michael@0 | 29 | uint16_t aResultType, |
| michael@0 | 30 | nsINode* aContextNode) = 0; |
| michael@0 | 31 | virtual nsresult GetExprResult(txAExprResult **aExprResult) = 0; |
| michael@0 | 32 | virtual nsresult Clone(nsIXPathResult **aResult) = 0; |
| michael@0 | 33 | }; |
| michael@0 | 34 | |
| michael@0 | 35 | NS_DEFINE_STATIC_IID_ACCESSOR(nsIXPathResult, NS_IXPATHRESULT_IID) |
| michael@0 | 36 | |
| michael@0 | 37 | /** |
| michael@0 | 38 | * A class for evaluating an XPath expression string |
| michael@0 | 39 | */ |
| michael@0 | 40 | class nsXPathResult MOZ_FINAL : public nsIDOMXPathResult, |
| michael@0 | 41 | public nsStubMutationObserver, |
| michael@0 | 42 | public nsIXPathResult |
| michael@0 | 43 | { |
| michael@0 | 44 | public: |
| michael@0 | 45 | nsXPathResult(); |
| michael@0 | 46 | nsXPathResult(const nsXPathResult &aResult); |
| michael@0 | 47 | ~nsXPathResult(); |
| michael@0 | 48 | |
| michael@0 | 49 | // nsISupports interface |
| michael@0 | 50 | NS_DECL_CYCLE_COLLECTING_ISUPPORTS |
| michael@0 | 51 | NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsXPathResult, nsIDOMXPathResult) |
| michael@0 | 52 | |
| michael@0 | 53 | // nsIDOMXPathResult interface |
| michael@0 | 54 | NS_DECL_NSIDOMXPATHRESULT |
| michael@0 | 55 | |
| michael@0 | 56 | // nsIMutationObserver interface |
| michael@0 | 57 | NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED |
| michael@0 | 58 | NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED |
| michael@0 | 59 | NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED |
| michael@0 | 60 | NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED |
| michael@0 | 61 | NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED |
| michael@0 | 62 | NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED |
| michael@0 | 63 | |
| michael@0 | 64 | // nsIXPathResult interface |
| michael@0 | 65 | nsresult SetExprResult(txAExprResult *aExprResult, uint16_t aResultType, |
| michael@0 | 66 | nsINode* aContextNode) MOZ_OVERRIDE; |
| michael@0 | 67 | nsresult GetExprResult(txAExprResult **aExprResult) MOZ_OVERRIDE; |
| michael@0 | 68 | nsresult Clone(nsIXPathResult **aResult) MOZ_OVERRIDE; |
| michael@0 | 69 | void RemoveObserver(); |
| michael@0 | 70 | private: |
| michael@0 | 71 | static bool isSnapshot(uint16_t aResultType) |
| michael@0 | 72 | { |
| michael@0 | 73 | return aResultType == UNORDERED_NODE_SNAPSHOT_TYPE || |
| michael@0 | 74 | aResultType == ORDERED_NODE_SNAPSHOT_TYPE; |
| michael@0 | 75 | } |
| michael@0 | 76 | static bool isIterator(uint16_t aResultType) |
| michael@0 | 77 | { |
| michael@0 | 78 | return aResultType == UNORDERED_NODE_ITERATOR_TYPE || |
| michael@0 | 79 | aResultType == ORDERED_NODE_ITERATOR_TYPE; |
| michael@0 | 80 | } |
| michael@0 | 81 | static bool isNode(uint16_t aResultType) |
| michael@0 | 82 | { |
| michael@0 | 83 | return aResultType == FIRST_ORDERED_NODE_TYPE || |
| michael@0 | 84 | aResultType == ANY_UNORDERED_NODE_TYPE; |
| michael@0 | 85 | } |
| michael@0 | 86 | bool isSnapshot() const |
| michael@0 | 87 | { |
| michael@0 | 88 | return isSnapshot(mResultType); |
| michael@0 | 89 | } |
| michael@0 | 90 | bool isIterator() const |
| michael@0 | 91 | { |
| michael@0 | 92 | return isIterator(mResultType); |
| michael@0 | 93 | } |
| michael@0 | 94 | bool isNode() const |
| michael@0 | 95 | { |
| michael@0 | 96 | return isNode(mResultType); |
| michael@0 | 97 | } |
| michael@0 | 98 | |
| michael@0 | 99 | void Invalidate(const nsIContent* aChangeRoot); |
| michael@0 | 100 | |
| michael@0 | 101 | nsRefPtr<txAExprResult> mResult; |
| michael@0 | 102 | nsCOMArray<nsIDOMNode> mResultNodes; |
| michael@0 | 103 | nsCOMPtr<nsIDocument> mDocument; |
| michael@0 | 104 | uint32_t mCurrentPos; |
| michael@0 | 105 | uint16_t mResultType; |
| michael@0 | 106 | nsWeakPtr mContextNode; |
| michael@0 | 107 | bool mInvalidIteratorState; |
| michael@0 | 108 | bool mBooleanResult; |
| michael@0 | 109 | double mNumberResult; |
| michael@0 | 110 | nsString mStringResult; |
| michael@0 | 111 | }; |
| michael@0 | 112 | |
| michael@0 | 113 | #endif |
