author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 09 Jun 2010 11:42:18 +0300 | |
branch | RCL_3 |
changeset 22 | 58e164f13314 |
parent 0 | e35f40988205 |
permissions | -rw-r--r-- |
0
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// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// Content handler implementation |
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// |
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|
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#include "xmlengcontenthandler.h" |
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#include <xml/dom/xmlengerrors.h> |
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#include <xml/dom/xmlengdeserializer.h> |
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#include "xmlengdeserializerxop.h" |
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#include <xml/dom/xmlengextendedcontenthandler.h> |
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#include <xml/parserfeature.h> |
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#include <xml/dom/xmlengserializeerrors.h> |
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#include <bsul/clientmessage.h> |
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|
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CXmlEngContentHandler* CXmlEngContentHandler::NewL( CXmlEngDeserializer* aDeserializer, |
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MContentHandler* aContentHandler ) |
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{ |
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CXmlEngContentHandler* self = new (ELeave) CXmlEngContentHandler(aDeserializer, aContentHandler); |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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CleanupStack::Pop(self); //self |
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return self; |
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} |
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|
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CXmlEngContentHandler::~CXmlEngContentHandler() |
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{ |
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iCachedPrefixes.ResetAndDestroy(); |
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iCachedUris.ResetAndDestroy(); |
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iCachedErrors.Reset(); |
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iStrPool.Close(); |
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} |
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CXmlEngContentHandler::CXmlEngContentHandler(CXmlEngDeserializer* aDeserializer, |
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MContentHandler* aContentHandler) |
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: iDeserializer(aDeserializer), |
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iContentHandler(aContentHandler) |
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{ |
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iSkipIncludeElement = 0; |
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iSkipPrefixMapping = 0; |
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} |
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void CXmlEngContentHandler::ConstructL() |
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{ |
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iStrPool.OpenL(); |
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} |
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/** |
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This method is a callback to indicate the start of the document. |
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@param aDocParam Specifies the various parameters of the document. |
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@param aDocParam.iCharacterSetName The character encoding of the document. |
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@param aErrorCode is the error code. |
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If this is not KErrNone then special action may be required. |
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*/ |
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void CXmlEngContentHandler::OnStartDocumentL(const RDocumentParameters& aDocParam, TInt aErrorCode) |
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{ |
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iContentHandler->OnStartDocumentL(aDocParam, aErrorCode); |
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} |
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/** |
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This method is a callback to indicate the end of the document. |
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@param aErrorCode is the error code. |
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If this is not KErrNone then special action may be required. |
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*/ |
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void CXmlEngContentHandler::OnEndDocumentL(TInt aErrorCode) |
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{ |
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iContentHandler->OnEndDocumentL(aErrorCode); |
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} |
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/** |
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This method is a callback to indicate an element has been parsed. |
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@param aElement is a handle to the element's details. |
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@param aAttributes contains the attributes for the element. |
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@param aErrorCode is the error code. |
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If this is not KErrNone then special action may be required. |
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*/ |
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void CXmlEngContentHandler::OnStartElementL(const RTagInfo& aElement, |
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const RAttributeArray& aAttributes, |
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TInt aErrorCode) |
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{ |
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_LIT8(KInclude, "Include"); |
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_LIT8(KXopIncludeUri, "http://www.w3.org/2004/08/xop/include"); |
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_LIT8(KHref, "href"); |
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_LIT8(KHrefUriEmpty, ""); |
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|
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TBool xopInclude = EFalse; |
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|
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if(iSkipIncludeElement) |
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{ |
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if( aElement.LocalName().DesC() == KInclude |
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&& aElement.Uri().DesC() == KXopIncludeUri) |
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105 |
{ |
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106 |
xopInclude = ETrue; |
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107 |
++iSkipIncludeElement; |
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108 |
} |
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109 |
return; |
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110 |
} |
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111 |
|
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112 |
MXmlEngExtendedHandler* ext = (MXmlEngExtendedHandler*)iContentHandler->GetExtendedInterface(MXmlEngExtendedHandler::EExtInterfaceUid); |
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113 |
|
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114 |
// determine if this element is xop:Include |
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115 |
if( xopInclude || |
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116 |
(aElement.LocalName().DesC() == KInclude && |
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117 |
aElement.Uri().DesC() == KXopIncludeUri)) |
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118 |
{ |
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119 |
for ( TInt i = 0; i < aAttributes.Count(); i++) |
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120 |
{ |
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121 |
if( aAttributes[i].Attribute().LocalName().DesC() == KHref |
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122 |
&& aAttributes[i].Attribute().Uri().DesC() == KHrefUriEmpty) |
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123 |
{ |
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124 |
TPtrC8 cidValue; |
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125 |
TPtrC8 data; |
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126 |
cidValue.Set(CidValue(aAttributes[i].Value().DesC())); |
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127 |
if( (CXmlEngDeserializer*)iDeserializer->ExternalData() |
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128 |
&& iDeserializer->GetDataContainer(cidValue) ) |
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129 |
{ |
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130 |
++iSkipIncludeElement; |
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131 |
iSkipPrefixMapping = ETrue; |
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132 |
if(ext) |
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133 |
ext->OnDataContainerL(*iDeserializer->GetDataContainer(cidValue), KErrNone); |
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134 |
} |
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135 |
else if(((CXmlEngDeserializerXOP*)iDeserializer)->GetData(cidValue, data) == KErrNone) |
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136 |
{ |
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137 |
++iSkipIncludeElement; |
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138 |
iSkipPrefixMapping = ETrue; |
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139 |
if(ext) |
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140 |
{ |
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141 |
if(iDeserializer->ParsingOptions().iOptions & TXmlEngParsingOptions::KOptionEncodeToBase64) |
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142 |
{ |
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143 |
//TImCodecB64 base64Codec; |
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144 |
// The encoded length of base64 is about twice (use 3x) decoded length |
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145 |
HBufC8* data64 = HBufC8::NewLC(3*data.Size()); |
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146 |
TPtr8 data64Ptr = data64->Des(); |
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147 |
// Encode to the base64 Content-Transfer-Encoding |
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148 |
//base64Codec.Encode(data, data64Ptr); |
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149 |
using namespace BSUL; |
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150 |
Base64Codec::Encode(data, data64Ptr); |
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151 |
if(data64Ptr.Length() == 0) |
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152 |
{ |
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153 |
User::Leave(KErrGeneral); |
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154 |
} |
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155 |
ext->OnBinaryContentL(data64Ptr,cidValue,aErrorCode); |
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156 |
CleanupStack::PopAndDestroy(); //data64 |
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157 |
} |
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158 |
else |
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159 |
{ |
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160 |
ext->OnBinaryContentL(data,cidValue,aErrorCode); |
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161 |
} |
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162 |
} |
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163 |
|
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164 |
} |
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165 |
else |
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166 |
{ |
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167 |
User::Leave(KXmlEngErrBinDataNotFound); |
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168 |
//iContentHandler->OnStartElementL(aElement, aAttributes, aErrorCode); |
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169 |
} |
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170 |
} |
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171 |
} //for |
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172 |
} |
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|
173 |
|
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174 |
if(!iSkipIncludeElement) |
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175 |
{ |
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176 |
if(iCachedUris.Count()) |
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|
177 |
{ |
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178 |
RString prefix; |
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179 |
RString uri; |
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180 |
for(TInt i = 0; i < iCachedPrefixes.Count(); i++) |
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|
181 |
{ |
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182 |
prefix = iStrPool.OpenStringL(iCachedPrefixes[i]->Des()); |
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|
183 |
CleanupClosePushL(prefix); |
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|
184 |
uri = iStrPool.OpenStringL(iCachedUris[i]->Des()); |
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185 |
CleanupClosePushL(uri); |
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186 |
iContentHandler->OnStartPrefixMappingL(prefix, uri, iCachedErrors[i]); |
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187 |
CleanupStack::PopAndDestroy(&uri); |
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188 |
CleanupStack::PopAndDestroy(&prefix); |
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189 |
} |
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190 |
} |
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|
191 |
if(iDeserializer->IsFeatureEnabled(EConvertTagsToLowerCase)) |
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|
192 |
{ |
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|
193 |
RTagInfo elementTag = ConvertNameToLowerCaseL(aElement); |
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|
194 |
CleanupClosePushL(elementTag); |
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195 |
iContentHandler->OnStartElementL(elementTag, aAttributes, aErrorCode); |
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196 |
CleanupStack::PopAndDestroy(); //elementTag |
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197 |
} |
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198 |
else |
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|
199 |
{ |
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200 |
iContentHandler->OnStartElementL(aElement, aAttributes, aErrorCode); |
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|
201 |
} |
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202 |
} |
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|
203 |
iCachedUris.ResetAndDestroy(); |
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|
204 |
iCachedPrefixes.ResetAndDestroy(); |
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|
205 |
iCachedErrors.Reset(); |
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206 |
} |
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|
207 |
|
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|
208 |
|
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|
209 |
/** |
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210 |
This method is a callback to indicate the end of the element has been reached. |
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211 |
@param aElement is a handle to the element's details. |
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@param aErrorCode is the error code. |
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If this is not KErrNone then special action may be required. |
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*/ |
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215 |
void CXmlEngContentHandler::OnEndElementL(const RTagInfo& aElement, TInt aErrorCode) |
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216 |
{ |
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217 |
_LIT8(KInclude, "Include"); |
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_LIT8(KXopIncludeUri, "http://www.w3.org/2004/08/xop/include"); |
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|
219 |
|
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220 |
if(iSkipIncludeElement) |
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221 |
{ |
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if( aElement.LocalName().DesC() == KInclude |
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&& aElement.Uri().DesC() == KXopIncludeUri) |
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224 |
{ |
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225 |
--iSkipIncludeElement; |
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226 |
} |
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227 |
return; |
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228 |
} |
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229 |
else |
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230 |
{ |
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iSkipPrefixMapping = EFalse; |
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232 |
} |
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233 |
|
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if(iDeserializer->IsFeatureEnabled(EConvertTagsToLowerCase)) |
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235 |
{ |
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RTagInfo elementTag = ConvertNameToLowerCaseL(aElement); |
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CleanupClosePushL(elementTag); |
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iContentHandler->OnEndElementL(elementTag, aErrorCode); |
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CleanupStack::PopAndDestroy(&elementTag); //elementTag |
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240 |
} |
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241 |
else |
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242 |
{ |
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243 |
iContentHandler->OnEndElementL(aElement, aErrorCode); |
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244 |
} |
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245 |
} |
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|
246 |
|
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247 |
/** |
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248 |
This method is a callback that sends the content of the element. |
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249 |
Not all the content may be returned in one go. The data may be sent in chunks. |
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|
250 |
When an OnEndElementL is received this means there is no more content to be sent. |
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251 |
@param aBytes is the raw content data for the element. |
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|
252 |
The client is responsible for converting the data to the |
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253 |
required character set if necessary. |
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254 |
In some instances the content may be binary and must not be converted. |
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255 |
@param aErrorCode is the error code. |
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256 |
If this is not KErrNone then special action may be required. |
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257 |
*/ |
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258 |
void CXmlEngContentHandler::OnContentL(const TDesC8& aBytes, TInt aErrorCode) |
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259 |
{ |
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260 |
if(iSkipIncludeElement) |
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|
261 |
{ |
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262 |
return; |
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263 |
} |
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264 |
iContentHandler->OnContentL(aBytes, aErrorCode); |
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265 |
} |
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|
266 |
|
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267 |
/** |
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|
268 |
This method is a notification of the beginning of the scope of a prefix-URI Namespace mapping. |
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|
269 |
This method is always called before the corresponding OnStartElementL method. |
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|
270 |
@param aPrefix is the Namespace prefix being declared. |
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|
271 |
@param aUri is the Namespace URI the prefix is mapped to. |
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|
272 |
@param aErrorCode is the error code. |
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|
273 |
If this is not KErrNone then special action may be required. |
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|
274 |
*/ |
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|
275 |
void CXmlEngContentHandler::OnStartPrefixMappingL(const RString& aPrefix, const RString& aUri, |
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|
276 |
TInt aErrorCode) |
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|
277 |
{ |
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|
278 |
if(iSkipIncludeElement) |
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|
279 |
{ |
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|
280 |
return; |
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|
281 |
} |
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|
282 |
iSkipPrefixMapping = EFalse; |
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|
283 |
HBufC8* pref = aPrefix.DesC().AllocL(); |
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|
284 |
HBufC8* uri = aUri.DesC().AllocL(); |
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|
285 |
iCachedPrefixes.AppendL(pref); |
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|
286 |
iCachedUris.AppendL(uri); |
22
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|
287 |
User::LeaveIfError(iCachedErrors.Append(aErrorCode)); |
0
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|
288 |
} |
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|
289 |
|
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|
290 |
/** |
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|
291 |
This method is a notification of the end of the scope of a prefix-URI mapping. |
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|
292 |
This method is called after the corresponding DoEndElementL method. |
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|
293 |
@param aPrefix is the Namespace prefix that was mapped. |
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|
294 |
@param aErrorCode is the error code. |
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|
295 |
If this is not KErrNone then special action may be required. |
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|
296 |
*/ |
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|
297 |
void CXmlEngContentHandler::OnEndPrefixMappingL(const RString& aPrefix, TInt aErrorCode) |
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|
298 |
{ |
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|
299 |
if(iSkipPrefixMapping) |
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|
300 |
{ |
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|
301 |
return; |
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|
302 |
} |
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|
303 |
iContentHandler->OnEndPrefixMappingL(aPrefix, aErrorCode); |
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|
304 |
} |
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|
305 |
|
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|
306 |
/** |
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|
307 |
This method is a notification of ignorable whitespace in element content. |
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|
308 |
@param aBytes are the ignored bytes from the document being parsed. |
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|
309 |
@param aErrorCode is the error code. |
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|
310 |
If this is not KErrNone then special action may be required. |
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|
311 |
*/ |
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|
312 |
void CXmlEngContentHandler::OnIgnorableWhiteSpaceL(const TDesC8& aBytes, TInt aErrorCode) |
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|
313 |
{ |
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|
314 |
if(iSkipIncludeElement) |
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|
315 |
{ |
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|
316 |
return; |
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diff
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|
317 |
} |
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|
318 |
iContentHandler->OnIgnorableWhiteSpaceL(aBytes, aErrorCode); |
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|
319 |
} |
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|
320 |
|
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|
321 |
/** |
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|
322 |
This method is a notification of a skipped entity. If the parser encounters an |
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Revision: 200947
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|
323 |
external entity it does not need to expand it - it can return the entity as aName |
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|
324 |
for the client to deal with. |
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|
325 |
@param aName is the name of the skipped entity. |
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|
326 |
@param aErrorCode is the error code. |
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|
327 |
If this is not KErrNone then special action may be required. |
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|
328 |
*/ |
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|
329 |
void CXmlEngContentHandler::OnSkippedEntityL(const RString& aName, TInt aErrorCode) |
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|
330 |
{ |
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|
331 |
if(iSkipIncludeElement) |
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|
332 |
{ |
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|
333 |
return; |
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|
334 |
} |
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|
335 |
iContentHandler->OnSkippedEntityL(aName, aErrorCode); |
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|
336 |
} |
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|
337 |
|
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|
338 |
/** |
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|
339 |
This method is a receive notification of a processing instruction. |
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|
340 |
@param aTarget is the processing instruction target. |
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|
341 |
@param aData is the processing instruction data. If empty none was supplied. |
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|
342 |
@param aErrorCode is the error code. |
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|
343 |
If this is not KErrNone then special action may be required. |
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|
344 |
*/ |
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Revision: 200947
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|
345 |
void CXmlEngContentHandler::OnProcessingInstructionL(const TDesC8& aTarget, |
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|
346 |
const TDesC8& aData, |
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|
347 |
TInt aErrorCode) |
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|
348 |
{ |
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|
349 |
if(iSkipIncludeElement) |
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|
350 |
{ |
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|
351 |
return; |
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|
352 |
} |
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diff
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|
353 |
iContentHandler->OnProcessingInstructionL(aTarget, aData, aErrorCode); |
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|
354 |
} |
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|
355 |
|
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|
356 |
/** |
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|
357 |
This method indicates an error has occurred. |
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|
358 |
@param aError is the error code |
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|
359 |
*/ |
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|
360 |
void CXmlEngContentHandler::OnError(TInt aErrorCode) |
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|
361 |
{ |
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|
362 |
iContentHandler->OnError(aErrorCode); |
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|
363 |
} |
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|
364 |
|
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diff
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|
365 |
/** |
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Revision: 200947
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diff
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|
366 |
This method obtains the interface matching the specified uid. |
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Revision: 200947
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|
367 |
@return 0 if no interface matching the uid is found. |
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|
368 |
Otherwise, the this pointer cast to that interface. |
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|
369 |
@param aUid the uid identifying the required interface. |
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|
370 |
*/ |
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Revision: 200947
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|
371 |
TAny* CXmlEngContentHandler::GetExtendedInterface(const TInt32 /*aUid*/) |
e35f40988205
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|
372 |
{ |
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|
373 |
return 0; |
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diff
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|
374 |
} |
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diff
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|
375 |
|
e35f40988205
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diff
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|
376 |
/** |
e35f40988205
Revision: 200947
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diff
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|
377 |
This method strips CID string from "cid:" prefix to fetch the pure CID value |
e35f40988205
Revision: 200947
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diff
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|
378 |
@return CID value |
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|
379 |
@param aCid CID string |
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Revision: 200947
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diff
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|
380 |
*/ |
e35f40988205
Revision: 200947
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diff
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|
381 |
TPtrC8 CXmlEngContentHandler::CidValue(const TDesC8& aCid) |
e35f40988205
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diff
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|
382 |
{ |
e35f40988205
Revision: 200947
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diff
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|
383 |
_LIT8(KCidPrefix, "cid:*"); |
e35f40988205
Revision: 200947
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diff
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|
384 |
TInt position = aCid.Match(KCidPrefix); |
e35f40988205
Revision: 200947
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parents:
diff
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|
385 |
if(position < 0) |
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Revision: 200947
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parents:
diff
changeset
|
386 |
{ |
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Revision: 200947
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diff
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|
387 |
position = 0; |
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Revision: 200947
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diff
changeset
|
388 |
} |
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Revision: 200947
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diff
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|
389 |
return aCid.Mid( position + KCidPrefix().Size() - 1); // minus star character (*) |
e35f40988205
Revision: 200947
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parents:
diff
changeset
|
390 |
} |
e35f40988205
Revision: 200947
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parents:
diff
changeset
|
391 |
|
e35f40988205
Revision: 200947
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parents:
diff
changeset
|
392 |
/** |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
This method converts element name to lower case and creates new tag info |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
@return New tag info with lower case element name |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
@param aTagInfo Original tag info |
e35f40988205
Revision: 200947
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parents:
diff
changeset
|
396 |
*/ |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
RTagInfo CXmlEngContentHandler::ConvertNameToLowerCaseL(const RTagInfo& aElement) |
e35f40988205
Revision: 200947
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parents:
diff
changeset
|
398 |
{ |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
// convert name to lower case, create new RTagInfo, invoke callback |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
400 |
HBufC8* uriBuf = aElement.Uri().DesC().AllocLC(); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
HBufC8* prefBuf = aElement.Prefix().DesC().AllocLC(); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
HBufC8* nameBuf = aElement.LocalName().DesC().AllocLC(); |
e35f40988205
Revision: 200947
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parents:
diff
changeset
|
403 |
nameBuf->Des().LowerCase(); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
|
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
RString uri = iStrPool.OpenStringL(uriBuf->Des()); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
CleanupClosePushL(uri); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
RString pref = iStrPool.OpenStringL(prefBuf->Des()); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
CleanupClosePushL(pref); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
RString name = iStrPool.OpenStringL(nameBuf->Des()); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
CleanupStack::Pop(&pref); |
e35f40988205
Revision: 200947
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parents:
diff
changeset
|
411 |
CleanupStack::Pop(&uri); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
CleanupStack::PopAndDestroy(nameBuf); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
CleanupStack::PopAndDestroy(prefBuf); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
CleanupStack::PopAndDestroy(uriBuf); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
RTagInfo elementTag; |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
elementTag.Open(uri, pref, name); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
TPtrC8 a = elementTag.LocalName().DesC(); |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
return elementTag; |
e35f40988205
Revision: 200947
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
} |