author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 01:00:49 +0200 | |
changeset 0 | 2f259fa3e83a |
permissions | -rw-r--r-- |
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// Copyright (c) 1997-2009 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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// |
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#include <eikdoc.h> |
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#include <eikapp.h> |
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#include <s32file.h> |
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#include <s32std.h> |
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#include <eikappui.h> |
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#include <eikproc.h> |
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#include <apgwgnam.h> |
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#include <apaid.h> |
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/** Constructor for CEikDocument */ |
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EXPORT_C CEikDocument::CEikDocument() |
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{ |
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} |
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EXPORT_C CEikDocument::CEikDocument(CEikApplication& aApp) |
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:CApaDocument(aApp,*aApp.Process()) |
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/** Constructs a new document. |
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This constructor is typically called from a derived UI-specific |
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document class constructor. |
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@param aApp The application instance that is creating the document. */ |
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{ |
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} |
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EXPORT_C CEikDocument::~CEikDocument() |
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/** Destructor. */ |
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{ |
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} |
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EXPORT_C void CEikDocument::NewDocumentL() |
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/** This empty function can be implemented in file-based applications |
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to initialise a new default document. |
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It is called by the UI framework during application start-up when the |
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application is launched without a document being associated with it and |
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when no default document exists. */ |
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{ |
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} |
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EXPORT_C CFileStore* CEikDocument::CreateFileStoreLC(RFs& aFs,const TDesC& aFileName) |
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/** Creates a file store for a new default document. |
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This function is called by the UI framework during application start-up, |
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as part of creating a default document. |
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@param aFs The file server session to use. |
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@param aFileName The path and name of the file to create. |
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@return The newly created file store. */ |
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{ |
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CFileStore* store=CDirectFileStore::ReplaceLC(aFs,aFileName,EFileShareExclusive); |
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TUidType fileUid(KDirectFileStoreLayoutUid,KUidAppDllDoc,Application()->AppDllUid()); |
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store->SetTypeL(fileUid); |
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CStreamDictionary* streamDic=CStreamDictionary::NewL(); |
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CleanupStack::PushL(streamDic); |
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StoreL(*store,*streamDic); // now the store will be fully initialized |
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Process()->WriteRootStreamL(*store,*streamDic,*Application()); |
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store->CommitL(); |
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CleanupStack::PopAndDestroy(); // streamDic |
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return store; |
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} |
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EXPORT_C void CEikDocument::PrintL(const CStreamStore& /*aStore*/) |
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/** Prints a document without opening it first. |
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This function is empty. It might be used to print a document directly from a |
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shell or file manager application rather than from the document's associated |
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application, using default print parameters. |
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@param aStore The stream store which holds the document. */ |
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{ |
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} |
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EXPORT_C void CEikDocument::StoreL(CStreamStore& /*aStore*/,CStreamDictionary& /*aStreamDic*/) const |
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/** Stores the document. |
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This function is empty. Applications that need to persist data must provide |
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their own implementation of this function, and RestoreL(). |
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This function is called by CEikAppUi::SaveL(). |
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@param aStore Stream store which holds one or more streams, each of which is generally |
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used to store the state of an object (by calling ExternalizeL()). |
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@param aStreamDic Stream dictionary which is used to store the IDs of the streams |
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in the store so they can be identified and restored later. |
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@see CEikAppUi::SaveL() */ |
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{ |
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} |
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104 |
|
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EXPORT_C void CEikDocument::ExternalizeL(RWriteStream& /*aStream*/) const |
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/** Externalises an object to a write stream. |
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107 |
|
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Implementations of this function are normally called from StoreL(). |
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109 |
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@param aStream A write stream inside the stream store passed to StoreL(), |
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to which the object's state is written. */ |
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{ |
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} |
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114 |
|
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EXPORT_C void CEikDocument::RestoreL(const CStreamStore& /*aStore*/,const CStreamDictionary& /*aStreamDic*/) |
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/** Restores the document. |
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117 |
|
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This function is empty. Applications that need to persist data must provide |
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their own implementation of this function, and StoreL(). |
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120 |
|
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This function is called by the UI framework during application start-up when there is |
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a document associated with the application. |
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123 |
|
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@param aStore Stream store which holds the document's state. |
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@param aStreamDic Stream dictionary which holds the IDs of the streams in the store. */ |
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126 |
{ |
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} |
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128 |
|
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EXPORT_C void CEikDocument::SaveL() |
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/** Saves the document's state. |
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131 |
|
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It calls StoreL() to save the document and also stores the application's identifier, |
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(a TApaAppIdentifier). The document is left open and its 'Has changed' flag is unset. |
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134 |
|
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This function is called by CEikAppUi::SaveL(). */ |
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{ |
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iEikProcess->SaveToDirectFileStoreL(this); |
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iChanged=EFalse; |
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} |
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140 |
|
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EXPORT_C void CEikDocument::SaveL(MSaveObserver::TSaveType /*aSaveType*/) |
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/** Saves the document's state. |
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143 |
|
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This function is called by the UI framework when it needs to close down the |
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application and the parameter provides the reason. For instance, it might |
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be due to RAM running out. |
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147 |
|
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This function simply calls the other overload, and ignores the parameter. |
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Applications should override this function if they need to take account of |
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the parameter. |
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151 |
|
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@param aSaveType Notification code. This indicates to the application why |
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this function was called. */ |
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{ |
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// by default, just save all app data |
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if (iEikProcess->MainStore()) |
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SaveL(); |
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} |
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|
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EXPORT_C TBool CEikDocument::IsEmpty() const |
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/** Tests whether the document contains any content. |
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|
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This implementation always returns ETrue. Any applications that |
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persist data may optionally override it. It is not called by the UI |
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framework. |
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166 |
|
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@return Always ETrue (in CEikDocument). */ |
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{ |
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return(ETrue); |
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} |
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171 |
|
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EXPORT_C TBool CEikDocument::HasChanged() const |
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/** Gets the document's 'Has changed' flag. |
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174 |
|
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The flag is set and unset using SetChanged(). Also, calling SaveL() |
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unsets it. |
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177 |
|
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CEikAppUi::SaveAnyChangesL() tests the value of this flag to identify |
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whether the document needs to be saved. |
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180 |
|
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@return The value of the document's 'Has changed' flag. |
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@see CEikAppUi::SaveAnyChangesL() */ |
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{ |
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return(iChanged); |
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} |
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|
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EXPORT_C void CEikDocument::ValidatePasswordL() const |
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/** |
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Checks the document password. The default implementation is empty. |
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190 |
|
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If a document is intended to be password protected, the UI application should provide an implementation |
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that forces the user to enter the password and validate the input. |
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If the document is protected by a password and the password entered by the user is incorrect, |
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the function should leave with KErrLocked, otherwise it should just return. */ |
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195 |
{ |
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CApaDocument::ValidatePasswordL(); |
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} |
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198 |
|
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EXPORT_C void CEikDocument::EditL(MApaEmbeddedDocObserver* aObserver,TBool aReadOnly) |
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/** Creates an embedded document's app UI and opens the document for editing or viewing. |
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201 |
|
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@param aObserver Optional pointer to an embedded document observer. This is informed |
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when editing is complete. An observer should only be supplied if the document is |
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embedded. |
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@param aReadOnly If ETrue, the embedded document is opened as read-only. |
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@leave KErrNotSupported An observer is specified but the application is not embeddable. */ |
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{ |
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TApaAppCapabilityBuf buf; |
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Application()->Capability(buf); |
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TApaAppCapability::TEmbeddability embeddability=buf().iEmbeddability; |
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if (aObserver && embeddability==TApaAppCapability::ENotEmbeddable) |
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User::Leave(KErrNotSupported); |
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TRAPD(err,PrepareToEditL(aObserver,aReadOnly)); |
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if (err) |
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{ |
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delete iAppUi; |
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iAppUi=NULL; |
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User::Leave(err); |
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} |
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iAppUi->HandleModelChangeL(); |
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if (embeddability==TApaAppCapability::EEmbeddable |
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|| embeddability==TApaAppCapability::EEmbeddableOnly |
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|| embeddability==TApaAppCapability::EEmbeddableUiOrStandAlone |
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|| embeddability==TApaAppCapability::EEmbeddableUiNotStandAlone) |
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{ |
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iAppUi->CheckInitializeViewsL(Application()->AppDllUid()); |
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iAppUi->ActivateTopViewL(); |
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} |
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} |
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|
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EXPORT_C void CEikDocument::SetEditStoreL(CStreamStore* aStore) |
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/** Sets the document's stream store. |
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|
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This function is called by the UI framework during application start-up. |
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@param aStore The stream store. */ |
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{ |
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iEditStore=aStore; |
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iAppUi->HandleModelChangeL(); |
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} |
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240 |
|
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void CEikDocument::SetEditStoreWithoutAppUiNotificationL(CStreamStore* aStore) |
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/** @internalComponent */ |
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243 |
{ |
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iEditStore=aStore; |
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} |
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|
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EXPORT_C void CEikDocument::PrepareToEditL(MApaEmbeddedDocObserver* aObserver,TBool aReadOnly) |
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/** Prepares an embedded document for editing by creating its app UI. |
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249 |
|
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This function is called by EditL(). |
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@param aObserver Pointer to an embedded document observer. This is notified |
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when editing is complete. |
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@param aReadOnly If ETrue, the embedded document is opened as read-only. */ |
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{ |
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iAppUi=CreateAppUiL(); |
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iAppUi->SetDocument(this); |
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iAppUi->SetEmbeddedDocInfo(aObserver,aReadOnly); |
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iAppUi->ConstructL(); // causes the CCoeEnv object to take ownership of iAppUi (the implementation of this virtual function must call CEikAppUi::ConstructL or CEikAppUi::BaseConstructL before calling any other leaving function) |
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} |
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|
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EXPORT_C void CEikDocument::PrepareToEditL() |
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/** Prepares a main (non-embedded) document for editing, by creating its app UI. |
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263 |
|
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This function is called by the UI framework during application start-up. */ |
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{ |
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PrepareToEditL(NULL,NULL); |
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} |
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|
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/** |
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Deletes reference to associated appUi |
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@internalComponent |
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*/ |
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void CEikDocument::NullAppUi() |
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{ |
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iAppUi=NULL; |
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} |
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|
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EXPORT_C void CEikDocument::SetChanged(TBool aHasChanged) |
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/** Sets this document's 'Has changed' flag. |
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|
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@param aHasChanged New value for the 'Has changed' flag. */ |
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{ |
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iChanged=aHasChanged; |
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} |
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|
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EXPORT_C const TApaAppCaption& CEikDocument::AppCaption() const |
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/** Gets the caption of the application that created the document. |
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|
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The application's caption is usually specified in its localisable resource file. |
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@return The caption of the application that created the document. |
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@see CEikApplication::AppCaption(). */ |
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{ |
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return(iEikApplication->AppCaption()); |
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} |
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|
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EXPORT_C void CEikDocument::SetAppFileMode(TUint aMode) |
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/** Sets the document's file sharing and access mode. |
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|
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@param aMode The new file sharing and access mode. This is a bitwise OR of |
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values enumerated in TFileMode. |
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@see TFileMode */ |
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{ |
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iAppFileMode=aMode; |
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} |
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|
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EXPORT_C TUint CEikDocument::AppFileMode() const |
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/** Gets the document's file sharing and access mode. |
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|
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309 |
By default, the access mode is EFileShareExclusive|EFileWrite, |
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310 |
except when the file could not be opened for exclusive writing, in |
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311 |
which case, its default access mode is EFileRead|EFileShareReadersOnly. |
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|
312 |
|
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313 |
@return The file sharing and access mode. This is a bitwise OR of |
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|
314 |
values enumerated in TFileMode. |
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315 |
@see TFileMode */ |
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|
316 |
{ |
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317 |
return iAppFileMode; |
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318 |
} |
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|
319 |
|
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|
320 |
EXPORT_C void CEikDocument::UpdateTaskNameL(CApaWindowGroupName* aWgName) |
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|
321 |
/** Updates a window group (or task) name with information about a main |
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322 |
(non-embedded) document. |
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|
323 |
|
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324 |
The window group name is updated to contain the application's caption and UID, and |
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|
325 |
the filename of the main document. |
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|
326 |
|
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327 |
The filename is also written to the application's ini file, to identify the |
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328 |
application's most recently opened file. An ini file is created if one doesn't |
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329 |
exist. |
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|
330 |
|
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331 |
This function is called by the UI framework during application start-up. |
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|
332 |
|
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333 |
@param aWgName Window group (or task) name. On return, this is updated to contain |
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|
334 |
information about the main document. */ |
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|
335 |
// |
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336 |
// default window group name |
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337 |
// |
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338 |
{ |
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339 |
const TPtrC docName=iEikProcess->MainDocFileName(); |
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340 |
if (docName.Length()) |
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|
341 |
{ |
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342 |
TRAP_IGNORE(iEikProcess->SetLastUsedFileL(CEikProcess::ELastOpenFile,docName)); |
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|
343 |
} |
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344 |
const TPtrC name=AppCaption(); |
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345 |
aWgName->SetCaptionL(name); |
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|
346 |
aWgName->SetAppUid(Application()->AppDllUid()); |
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347 |
aWgName->SetDocNameL(docName); |
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|
348 |
} |
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|
349 |
|
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|
350 |
EXPORT_C CFileStore* CEikDocument::OpenFileL(TBool aDoOpen,const TDesC& aFilename,RFs& aFs) |
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|
351 |
/** Restores the document's state from the specified file, or creates a new |
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|
352 |
default document. |
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|
353 |
|
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|
354 |
If aDoOpen is true, the function tries to open the file for exclusive writing. If that |
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|
355 |
fails, it tries to open it for reading only. If that fails, it leaves. |
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|
356 |
|
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|
357 |
If aDoOpen is false, the function creates a new default document whose |
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|
358 |
path and name are specified in aFilename. |
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|
359 |
|
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|
360 |
This function is called by the UI framework during application start-up. |
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|
361 |
|
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|
362 |
@param aDoOpen True to open an existing file, false to create a new default file. |
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|
363 |
@param aFilename The path and name of the file to open or create. |
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|
364 |
@param aFs File server session to use. |
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|
365 |
@return The file store that stores the main document. */ |
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|
366 |
{ |
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|
367 |
CFileStore* docStore=NULL; |
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|
368 |
TUint appFileMode=EFileShareExclusive|EFileWrite; |
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|
369 |
if (aDoOpen) |
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|
370 |
{ |
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|
371 |
CStreamDictionary* streamDic=NULL; |
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|
372 |
TRAPD(err, |
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|
373 |
streamDic=CApaProcess::ReadRootStreamLC(aFs,docStore,aFilename,appFileMode); |
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|
374 |
CleanupStack::Pop();); |
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Revision: 201003
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|
375 |
if (err==KErrNone) |
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|
376 |
CleanupStack::PushL(streamDic); |
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|
377 |
else |
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|
378 |
{ |
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|
379 |
appFileMode=EFileRead|EFileShareReadersOnly; |
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|
380 |
if (err==KErrAccessDenied || err==KErrInUse) |
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|
381 |
streamDic=CApaProcess::ReadRootStreamLC(aFs,docStore,aFilename,appFileMode); |
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|
382 |
else |
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Revision: 201003
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|
383 |
User::Leave(err); |
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Revision: 201003
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|
384 |
} |
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Revision: 201003
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|
385 |
CleanupStack::PushL(docStore); |
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Revision: 201003
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|
386 |
RestoreL(*docStore,*streamDic); |
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Revision: 201003
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|
387 |
CleanupStack::Pop();// docStore |
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Revision: 201003
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|
388 |
CleanupStack::PopAndDestroy(); // streamDic |
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Revision: 201003
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|
389 |
} |
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Revision: 201003
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|
390 |
else |
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Revision: 201003
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parents:
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|
391 |
{ |
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Revision: 201003
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parents:
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|
392 |
NewDocumentL(); |
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Revision: 201003
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|
393 |
aFs.MkDirAll(aFilename); |
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Revision: 201003
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parents:
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|
394 |
docStore=CreateFileStoreLC(aFs,aFilename); |
2f259fa3e83a
Revision: 201003
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|
395 |
docStore->CommitL(); |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
396 |
CleanupStack::Pop(); // docStore |
2f259fa3e83a
Revision: 201003
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parents:
diff
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|
397 |
} |
2f259fa3e83a
Revision: 201003
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parents:
diff
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|
398 |
iAppFileMode=appFileMode; |
2f259fa3e83a
Revision: 201003
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parents:
diff
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|
399 |
return docStore; |
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Revision: 201003
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|
400 |
} |
2f259fa3e83a
Revision: 201003
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parents:
diff
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|
401 |
|
2f259fa3e83a
Revision: 201003
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parents:
diff
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|
402 |
EXPORT_C void CEikDocument::OpenFileL(CFileStore*& aFileStore, RFile& aFile) |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
403 |
/** Restores the document's state from the specified file. |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
404 |
|
2f259fa3e83a
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
405 |
This virtual function should be overridden if the file is not a "native" |
2f259fa3e83a
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
406 |
Symbian OS file (i.e. is not a CFileStore). In this case, the override should |
2f259fa3e83a
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
407 |
set the aFileStore parameter to NULL. |
2f259fa3e83a
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
|
2f259fa3e83a
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
Overrides of this function must only set aFileStore once all leave-prone operations |
2f259fa3e83a
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
410 |
have succesfully completed. |
2f259fa3e83a
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
|
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This function is called by the UI framework during application start-up. |
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413 |
|
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When a file is opened, the current write position is automatically set to the start of the file, therefore |
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there is no need to call RFile::Seek(ESeekStart,0). |
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A call to RFile::Close() should be made when the file handle is no longer required. |
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The file handle should not be passed to another process or application as it will be closed automatically |
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when its associated file-server session is closed. |
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419 |
|
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@see RFile |
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@see RFs |
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422 |
|
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@param aFileStore This is set by the function to the file store that stores |
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the main document, if the file is a "native" Symbian OS file, otherwise it |
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is set to NULL. |
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@param aFile The path and name of the file to read from. */ |
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427 |
{ |
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Revision: 201003
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CFileStore* fileStore=NULL; |
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CStreamDictionary* const streamDictionary=CApaProcess::ReadRootStreamLC(fileStore, aFile); |
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CleanupStack::PushL(fileStore); |
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RestoreL(*fileStore, *streamDictionary); |
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CleanupStack::Pop(fileStore); |
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CleanupStack::PopAndDestroy(streamDictionary); |
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iAppFileMode=0; |
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aFileStore=fileStore; |
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} |
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437 |
|
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EXPORT_C void CEikDocument::Reserved_2() |
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{} |