author | Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com> |
Mon, 30 Mar 2009 12:54:55 +0300 | |
changeset 0 | dd21522fd290 |
child 68 | 92a765b5b3e7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005 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 the License "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: Methods used to translated CFolderItems back into opml files. |
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* |
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*/ |
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#include "OpmlWriter.h" |
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#include <EscapeUtils.h> |
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_LIT(KTempDirName, "c:\\system\\temp\\"); |
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// Private conts. |
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_LIT8(KUtf8, "utf8"); |
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_LIT8(KOpml, "opml"); |
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_LIT8(KVersion, "version"); |
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_LIT8(K1, "1.0"); |
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_LIT8(KHead, "head"); |
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_LIT8(KTitle, "title"); |
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_LIT8(KTitleValue, "S60 Feeds Client - Feed Subscriptions"); |
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_LIT8(KBody, "body"); |
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_LIT8(KOutline, "outline"); |
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_LIT8(KText, "text"); |
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_LIT8(KXmlUrl, "xmlUrl"); |
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_LIT8(KType, "type"); |
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_LIT16(KTypeValue, "rss"); |
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const TInt KMaxFolderItemTitleLength = 256; |
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const TInt KMaxFolderItemURLLength = 256; |
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// ----------------------------------------------------------------------------- |
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// OpmlWriter::WriteFolderItemL |
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// |
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// Writes the FolderItem and all of its child to the given file. |
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// ----------------------------------------------------------------------------- |
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// |
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void OpmlWriter::WriteFolderItemL(xmlTextWriterPtr aWriter, TInt aFolderItemId, CFeedsDatabase &aFeedsDatabase) |
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{ |
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TInt rc; |
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TBool isFolder; |
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HBufC* FolderItemTitle = HBufC::NewLC(KMaxFolderItemTitleLength); |
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HBufC* FolderItemURL = HBufC::NewLC(KMaxFolderItemURLLength); |
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aFeedsDatabase.FolderItemInfoL(aFolderItemId, isFolder, FolderItemTitle, FolderItemURL); |
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// Write out a single entry. |
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if(!isFolder) |
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{ |
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// Open the opml element. |
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rc = xmlTextWriterStartElement(aWriter, BAD_CAST(KOutline().Ptr())); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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// Write out the text attribute. |
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if (FolderItemTitle->Length() != 0) |
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{ |
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WriteAttributeL(aWriter, KText(), *FolderItemTitle); |
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} |
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// Write out the XmlUrl attribute. |
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if (FolderItemURL->Length() != 0) |
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{ |
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WriteAttributeL(aWriter, KXmlUrl(), *FolderItemURL); |
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} |
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WriteAttributeL(aWriter, KType(), KTypeValue()); |
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|
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// Close the outline element. |
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rc = xmlTextWriterEndElement(aWriter); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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} |
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// Otherwise write it and its children. |
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else |
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{ |
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rc = xmlTextWriterStartElement(aWriter, BAD_CAST(KOutline().Ptr())); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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|
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// Write out the text attribute. |
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if (FolderItemTitle->Length() != 0) |
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{ |
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WriteAttributeL(aWriter, KText(), *FolderItemTitle); |
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} |
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RArray<TInt> Children; |
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CleanupClosePushL(Children); |
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110 |
|
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aFeedsDatabase.FolderItemGetChildrenL(aFolderItemId, Children); |
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|
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// Write out each child. |
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for (TInt i = 0; i < Children.Count(); i++) |
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{ |
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WriteFolderItemL(aWriter, Children[i], aFeedsDatabase); |
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} |
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|
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CleanupStack::PopAndDestroy(/*Children*/); |
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120 |
|
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rc = xmlTextWriterEndElement(aWriter); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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} |
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127 |
|
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CleanupStack::PopAndDestroy(/*FolderItemURL*/); |
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CleanupStack::PopAndDestroy(/*FolderItemTitle*/); |
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} |
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|
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132 |
|
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// ----------------------------------------------------------------------------- |
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// OpmlWriter::WriteAttributeL |
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// |
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// Writes out a attribute. |
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// ----------------------------------------------------------------------------- |
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// |
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void OpmlWriter::WriteAttributeL(xmlTextWriterPtr aWriter, const TDesC8& aName, |
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const TDesC& aValue) |
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{ |
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TInt rc; |
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HBufC8* utf8 = NULL; |
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HBufC8* utf8Zero = NULL; |
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|
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// Convert it to utf8. |
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utf8 = EscapeUtils::ConvertFromUnicodeToUtf8L(aValue); |
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CleanupStack::PushL(utf8); |
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utf8Zero = HBufC8::NewL(utf8->Length() + 1); |
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utf8Zero->Des().Copy(*utf8); |
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utf8Zero->Des().ZeroTerminate(); |
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CleanupStack::PushL(utf8Zero); |
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153 |
|
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// Add the attribute. |
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rc = xmlTextWriterWriteAttribute(aWriter, BAD_CAST(aName.Ptr()), utf8Zero->Ptr()); |
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156 |
|
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CleanupStack::PopAndDestroy(utf8Zero); |
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CleanupStack::PopAndDestroy(utf8); |
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if (rc < 0) |
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160 |
{ |
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User::Leave(KErrCorrupt); |
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162 |
} |
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} |
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164 |
|
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165 |
|
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// ----------------------------------------------------------------------------- |
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// OpmlWriter::ExportL |
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168 |
// |
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// Export all specified folders (by FolderItemIDs) to an OPML file |
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// ----------------------------------------------------------------------------- |
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171 |
// |
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void OpmlWriter::ExportL(RArray<TInt> &aFolderItemIDs, const TDesC& aExportFileName) |
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173 |
{ |
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174 |
|
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RFs rfs; |
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RFile OPMLFile; |
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TInt rc; |
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xmlTextWriterPtr writer = NULL; |
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xmlBufferPtr buf = NULL; |
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180 |
|
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if(aFolderItemIDs.Count()<=0 || aExportFileName.Length()<=0) |
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182 |
{ |
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User::Leave(KErrCorrupt); |
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184 |
} |
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185 |
|
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// Create a new XML buffer, to which the XML document will be |
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// written. |
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buf = xmlBufferCreate(); |
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189 |
User::LeaveIfNull(buf); |
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190 |
CleanupLibXml2::PushL(buf); |
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191 |
|
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// Create a new XmlWriter for memory. |
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193 |
writer = xmlNewTextWriterMemory(buf, 0); |
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User::LeaveIfNull(writer); |
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195 |
CleanupLibXml2::PushL(writer); |
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196 |
|
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xmlTextWriterSetIndent(writer, 4); |
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198 |
|
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// Start the document. |
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200 |
rc = xmlTextWriterStartDocument(writer, NULL, (const char*) KUtf8().Ptr(), NULL); |
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if (rc < 0) |
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202 |
{ |
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User::Leave(KErrCorrupt); |
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204 |
} |
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205 |
|
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// Open the opml element with its version. |
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rc = xmlTextWriterStartElement(writer, BAD_CAST(KOpml().Ptr())); |
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if (rc < 0) |
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209 |
{ |
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User::Leave(KErrCorrupt); |
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211 |
} |
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212 |
|
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rc = xmlTextWriterWriteAttribute(writer, BAD_CAST(KVersion().Ptr()), BAD_CAST(K1().Ptr())); |
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if (rc < 0) |
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|
215 |
{ |
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User::Leave(KErrCorrupt); |
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217 |
} |
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218 |
|
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219 |
rc = xmlTextWriterStartElement(writer, BAD_CAST(KHead().Ptr())); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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rc = xmlTextWriterStartElement(writer, BAD_CAST(KTitle().Ptr())); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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rc = xmlTextWriterWriteFormatRaw(writer, "%s", KTitleValue().Ptr()); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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|
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rc = xmlTextWriterEndElement(writer); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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|
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|
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rc = xmlTextWriterEndElement(writer); |
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if (rc < 0) |
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246 |
{ |
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User::Leave(KErrCorrupt); |
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} |
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|
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// Open the body element. |
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rc = xmlTextWriterStartElement(writer, BAD_CAST(KBody().Ptr())); |
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if (rc < 0) |
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{ |
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User::Leave(KErrCorrupt); |
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} |
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TBool created; |
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CFeedsDatabase *FeedsDatabase = CFeedsDatabase::NewL(NULL,created); |
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CleanupStack::PushL(FeedsDatabase); |
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|
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// Write out the folder. |
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for(TInt i=0; i<aFolderItemIDs.Count(); i++) |
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{ |
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WriteFolderItemL(writer, aFolderItemIDs[i], *FeedsDatabase); |
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} |
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|
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CleanupStack::PopAndDestroy(/*FeedsDatabase*/); |
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// Close the body element. |
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rc = xmlTextWriterEndElement(writer); |
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if (rc < 0) |
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271 |
{ |
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User::Leave(KErrCorrupt); |
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} |
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|
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// Close the opml element. |
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rc = xmlTextWriterEndElement(writer); |
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if (rc < 0) |
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278 |
{ |
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User::Leave(KErrCorrupt); |
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} |
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|
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(void) xmlTextWriterFlush(writer); |
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283 |
|
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// Write the buffer to the file. |
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TPtrC8 ptr(buf->content, buf->use); |
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|
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|
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TBuf<KMaxFileName> path(KTempDirName); |
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|
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path.Append(aExportFileName.Mid(0, Min(aExportFileName.Length(), (KMaxFileName - path.Length())))); |
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|
289 |
|
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|
290 |
User::LeaveIfError(rfs.Connect()); |
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|
291 |
CleanupClosePushL(rfs); |
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|
292 |
|
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User::LeaveIfError(OPMLFile.Replace(rfs, path, EFileShareExclusive|EFileWrite)); |
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|
294 |
|
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|
295 |
CleanupClosePushL(OPMLFile); |
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|
296 |
|
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|
297 |
OPMLFile.Write(ptr); |
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|
298 |
|
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|
299 |
// Clean up. |
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|
300 |
CleanupStack::PopAndDestroy(/*OPMLFile*/); |
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|
301 |
CleanupStack::PopAndDestroy(/*rfs*/); |
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|
302 |
|
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|
303 |
CleanupStack::PopAndDestroy(/*writer*/); |
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Revision: 200911
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|
304 |
CleanupStack::PopAndDestroy(/*buf*/); |
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|
305 |
|
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306 |
} |