content/base/src/nsDOMSerializer.cpp@deefc01c0e14 (annotated)
content/base/src/nsDOMSerializer.cpp
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| 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 | #include "nsDOMSerializer.h" |
| michael@0 | 7 | |
| michael@0 | 8 | #include "nsIDocument.h" |
| michael@0 | 9 | #include "nsIDocumentEncoder.h" |
| michael@0 | 10 | #include "nsIDOMDocument.h" |
| michael@0 | 11 | #include "nsComponentManagerUtils.h" |
| michael@0 | 12 | #include "nsContentCID.h" |
| michael@0 | 13 | #include "nsContentUtils.h" |
| michael@0 | 14 | #include "nsError.h" |
| michael@0 | 15 | #include "nsINode.h" |
| michael@0 | 16 | |
| michael@0 | 17 | using namespace mozilla; |
| michael@0 | 18 | |
| michael@0 | 19 | nsDOMSerializer::nsDOMSerializer() |
| michael@0 | 20 | { |
| michael@0 | 21 | SetIsDOMBinding(); |
| michael@0 | 22 | } |
| michael@0 | 23 | |
| michael@0 | 24 | nsDOMSerializer::~nsDOMSerializer() |
| michael@0 | 25 | { |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | // QueryInterface implementation for nsDOMSerializer |
| michael@0 | 29 | NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMSerializer) |
| michael@0 | 30 | NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY |
| michael@0 | 31 | NS_INTERFACE_MAP_ENTRY(nsISupports) |
| michael@0 | 32 | NS_INTERFACE_MAP_ENTRY(nsIDOMSerializer) |
| michael@0 | 33 | NS_INTERFACE_MAP_END |
| michael@0 | 34 | |
| michael@0 | 35 | NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(nsDOMSerializer, mOwner) |
| michael@0 | 36 | |
| michael@0 | 37 | NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMSerializer) |
| michael@0 | 38 | NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMSerializer) |
| michael@0 | 39 | |
| michael@0 | 40 | |
| michael@0 | 41 | static nsresult |
| michael@0 | 42 | SetUpEncoder(nsIDOMNode *aRoot, const nsACString& aCharset, |
| michael@0 | 43 | nsIDocumentEncoder **aEncoder) |
| michael@0 | 44 | { |
| michael@0 | 45 | *aEncoder = nullptr; |
| michael@0 | 46 | |
| michael@0 | 47 | nsresult rv; |
| michael@0 | 48 | nsCOMPtr<nsIDocumentEncoder> encoder = |
| michael@0 | 49 | do_CreateInstance(NS_DOC_ENCODER_CONTRACTID_BASE "application/xhtml+xml", &rv); |
| michael@0 | 50 | if (NS_FAILED(rv)) |
| michael@0 | 51 | return rv; |
| michael@0 | 52 | |
| michael@0 | 53 | bool entireDocument = true; |
| michael@0 | 54 | nsCOMPtr<nsIDOMDocument> domDoc(do_QueryInterface(aRoot)); |
| michael@0 | 55 | if (!domDoc) { |
| michael@0 | 56 | entireDocument = false; |
| michael@0 | 57 | rv = aRoot->GetOwnerDocument(getter_AddRefs(domDoc)); |
| michael@0 | 58 | if (NS_FAILED(rv)) |
| michael@0 | 59 | return rv; |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | // This method will fail if no document |
| michael@0 | 63 | rv = encoder->Init(domDoc, NS_LITERAL_STRING("application/xhtml+xml"), |
| michael@0 | 64 | nsIDocumentEncoder::OutputRaw | |
| michael@0 | 65 | nsIDocumentEncoder::OutputDontRewriteEncodingDeclaration); |
| michael@0 | 66 | |
| michael@0 | 67 | if (NS_FAILED(rv)) |
| michael@0 | 68 | return rv; |
| michael@0 | 69 | |
| michael@0 | 70 | nsAutoCString charset(aCharset); |
| michael@0 | 71 | if (charset.IsEmpty()) { |
| michael@0 | 72 | nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc); |
| michael@0 | 73 | NS_ASSERTION(doc, "Need a document"); |
| michael@0 | 74 | charset = doc->GetDocumentCharacterSet(); |
| michael@0 | 75 | } |
| michael@0 | 76 | rv = encoder->SetCharset(charset); |
| michael@0 | 77 | if (NS_FAILED(rv)) |
| michael@0 | 78 | return rv; |
| michael@0 | 79 | |
| michael@0 | 80 | // If we are working on the entire document we do not need to |
| michael@0 | 81 | // specify which part to serialize |
| michael@0 | 82 | if (!entireDocument) { |
| michael@0 | 83 | rv = encoder->SetNode(aRoot); |
| michael@0 | 84 | } |
| michael@0 | 85 | |
| michael@0 | 86 | if (NS_SUCCEEDED(rv)) { |
| michael@0 | 87 | *aEncoder = encoder.get(); |
| michael@0 | 88 | NS_ADDREF(*aEncoder); |
| michael@0 | 89 | } |
| michael@0 | 90 | |
| michael@0 | 91 | return rv; |
| michael@0 | 92 | } |
| michael@0 | 93 | |
| michael@0 | 94 | void |
| michael@0 | 95 | nsDOMSerializer::SerializeToString(nsINode& aRoot, nsAString& aStr, |
| michael@0 | 96 | ErrorResult& rv) |
| michael@0 | 97 | { |
| michael@0 | 98 | rv = nsDOMSerializer::SerializeToString(aRoot.AsDOMNode(), aStr); |
| michael@0 | 99 | } |
| michael@0 | 100 | |
| michael@0 | 101 | NS_IMETHODIMP |
| michael@0 | 102 | nsDOMSerializer::SerializeToString(nsIDOMNode *aRoot, nsAString& _retval) |
| michael@0 | 103 | { |
| michael@0 | 104 | NS_ENSURE_ARG_POINTER(aRoot); |
| michael@0 | 105 | |
| michael@0 | 106 | _retval.Truncate(); |
| michael@0 | 107 | |
| michael@0 | 108 | if (!nsContentUtils::CanCallerAccess(aRoot)) { |
| michael@0 | 109 | return NS_ERROR_DOM_SECURITY_ERR; |
| michael@0 | 110 | } |
| michael@0 | 111 | |
| michael@0 | 112 | nsCOMPtr<nsIDocumentEncoder> encoder; |
| michael@0 | 113 | nsresult rv = SetUpEncoder(aRoot, EmptyCString(), getter_AddRefs(encoder)); |
| michael@0 | 114 | if (NS_FAILED(rv)) |
| michael@0 | 115 | return rv; |
| michael@0 | 116 | |
| michael@0 | 117 | return encoder->EncodeToString(_retval); |
| michael@0 | 118 | } |
| michael@0 | 119 | |
| michael@0 | 120 | void |
| michael@0 | 121 | nsDOMSerializer::SerializeToStream(nsINode& aRoot, nsIOutputStream* aStream, |
| michael@0 | 122 | const nsAString& aCharset, ErrorResult& rv) |
| michael@0 | 123 | { |
| michael@0 | 124 | rv = nsDOMSerializer::SerializeToStream(aRoot.AsDOMNode(), aStream, |
| michael@0 | 125 | NS_ConvertUTF16toUTF8(aCharset)); |
| michael@0 | 126 | } |
| michael@0 | 127 | |
| michael@0 | 128 | NS_IMETHODIMP |
| michael@0 | 129 | nsDOMSerializer::SerializeToStream(nsIDOMNode *aRoot, |
| michael@0 | 130 | nsIOutputStream *aStream, |
| michael@0 | 131 | const nsACString& aCharset) |
| michael@0 | 132 | { |
| michael@0 | 133 | NS_ENSURE_ARG_POINTER(aRoot); |
| michael@0 | 134 | NS_ENSURE_ARG_POINTER(aStream); |
| michael@0 | 135 | // The charset arg can be empty, in which case we get the document's |
| michael@0 | 136 | // charset and use that when serializing. |
| michael@0 | 137 | |
| michael@0 | 138 | if (!nsContentUtils::CanCallerAccess(aRoot)) { |
| michael@0 | 139 | return NS_ERROR_DOM_SECURITY_ERR; |
| michael@0 | 140 | } |
| michael@0 | 141 | |
| michael@0 | 142 | nsCOMPtr<nsIDocumentEncoder> encoder; |
| michael@0 | 143 | nsresult rv = SetUpEncoder(aRoot, aCharset, getter_AddRefs(encoder)); |
| michael@0 | 144 | if (NS_FAILED(rv)) |
| michael@0 | 145 | return rv; |
| michael@0 | 146 | |
| michael@0 | 147 | return encoder->EncodeToStream(aStream); |
| michael@0 | 148 | } |
