The Tor Browser: dom/xslt/xpath/XPathEvaluator.h@97036ab72558

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.

     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/. */

     6 #ifndef mozilla_dom_XPathEvaluator_h

     7 #define mozilla_dom_XPathEvaluator_h

     9 #include "nsIDOMXPathEvaluator.h"

    10 #include "nsIWeakReference.h"

    11 #include "nsAutoPtr.h"

    12 #include "nsString.h"

    13 #include "mozilla/Attributes.h"

    14 #include "mozilla/ErrorResult.h"

    15 #include "nsIDocument.h"

    17 class nsINode;

    18 class txResultRecycler;

    20 namespace mozilla {

    21 namespace dom {

    23 class GlobalObject;

    25 /**

    26  * A class for evaluating an XPath expression string

    27  */

    28 class XPathEvaluator MOZ_FINAL : public nsIDOMXPathEvaluator

    29 {

    30 public:

    31     XPathEvaluator(nsIDocument* aDocument = nullptr);

    33     NS_DECL_ISUPPORTS

    35     // nsIDOMXPathEvaluator interface

    36     NS_DECL_NSIDOMXPATHEVALUATOR

    38     // WebIDL API

    39     JSObject* WrapObject(JSContext* aCx);

    40     nsIDocument* GetParentObject()

    41     {

    42         nsCOMPtr<nsIDocument> doc = do_QueryReferent(mDocument);

    43         return doc;

    44     }

    45     static already_AddRefed<XPathEvaluator>

    46         Constructor(const GlobalObject& aGlobal, ErrorResult& rv);

    47     already_AddRefed<nsIDOMXPathExpression>

    48         CreateExpression(const nsAString& aExpression,

    49                          nsIDOMXPathNSResolver* aResolver,

    50                          ErrorResult& rv);

    51     already_AddRefed<nsIDOMXPathNSResolver>

    52         CreateNSResolver(nsINode* aNodeResolver, ErrorResult& rv);

    53     already_AddRefed<nsISupports>

    54         Evaluate(const nsAString& aExpression, nsINode* aContextNode,

    55                  nsIDOMXPathNSResolver* aResolver, uint16_t aType,

    56                  nsISupports* aResult, ErrorResult& rv);

    57 private:

    58     nsWeakPtr mDocument;

    59     nsRefPtr<txResultRecycler> mRecycler;

    60 };

    62 inline nsISupports*

    63 ToSupports(XPathEvaluator* e)

    64 {

    65     return static_cast<nsIDOMXPathEvaluator*>(e);

    66 }

    68 /* d0a75e02-b5e7-11d5-a7f2-df109fb8a1fc */

    69 #define TRANSFORMIIX_XPATH_EVALUATOR_CID   \

    70 { 0xd0a75e02, 0xb5e7, 0x11d5, { 0xa7, 0xf2, 0xdf, 0x10, 0x9f, 0xb8, 0xa1, 0xfc } }

    72 } // namespace dom

    73 } // namespace mozilla

    75 #endif /* mozilla_dom_XPathEvaluator_h */

The Tor Browser / file revision

dom/xslt/xpath/XPathEvaluator.h@97036ab72558

dom/xslt/xpath/XPathEvaluator.h