|
1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // |
|
15 |
|
16 #include "caliteratorimpl.h" |
|
17 |
|
18 #include "calclient.h" |
|
19 #include "agmentry.h" |
|
20 #include "calsessionimpl.h" |
|
21 |
|
22 CCalIteratorImpl::CCalIteratorImpl(CCalSessionImpl& aSessionImpl) |
|
23 :iCalSessionImpl(aSessionImpl), iServer(aSessionImpl.Server()) |
|
24 { |
|
25 iCalSessionImpl.IncrementReferenceCount(); |
|
26 } |
|
27 |
|
28 CCalIteratorImpl::~CCalIteratorImpl() |
|
29 { |
|
30 iCalSessionImpl.DecrementReferenceCount(); |
|
31 delete iGuid; |
|
32 } |
|
33 |
|
34 const TDesC8& CCalIteratorImpl::FirstL() |
|
35 { |
|
36 if (iServer.CreateEntryIteratorL(iCalSessionImpl.FileId())) |
|
37 { |
|
38 iFileEntry = ETrue; //file contains an entry |
|
39 FindUidL(); |
|
40 if(iGuid) |
|
41 { |
|
42 return *iGuid; |
|
43 } |
|
44 else |
|
45 { |
|
46 NextL(); |
|
47 } |
|
48 __ASSERT_ALWAYS(iGuid, User::Leave(KErrCorrupt));// At least there should be one entry which holds the guid |
|
49 return *iGuid; |
|
50 } |
|
51 else |
|
52 {//There is no entries - the file is empty - |
|
53 iFileEntry = EFalse; |
|
54 return KNullDesC8(); |
|
55 } |
|
56 } |
|
57 /** |
|
58 Moves the entry iterator to the next entry which is a parent (parent and its children have the same Uid) and retrive its Uid. . |
|
59 |
|
60 @capability None |
|
61 @return a descriptor which contains the Uid of the current entry. The return value can be a KNullDesC8 if there is no more parent entry in the file. |
|
62 */ |
|
63 const TDesC8& CCalIteratorImpl::NextL() |
|
64 { |
|
65 if (!iFileEntry) |
|
66 { |
|
67 User::Leave(KErrCorrupt); |
|
68 } |
|
69 |
|
70 TBool available = iServer.EntryIteratorNextL(iCalSessionImpl.FileId()); |
|
71 while (available) |
|
72 { |
|
73 FindUidL(); |
|
74 if(iGuid) |
|
75 { |
|
76 return *iGuid; |
|
77 } |
|
78 |
|
79 available = iServer.EntryIteratorNextL(iCalSessionImpl.FileId()); |
|
80 } |
|
81 return KNullDesC8(); |
|
82 } |
|
83 |
|
84 |
|
85 void CCalIteratorImpl::FindUidL() |
|
86 {/* |
|
87 Update the iGuid which hols the guid of the current entry. |
|
88 |
|
89 The descriptor HBufC* iGid may be one of the following values: |
|
90 |
|
91 1. Contains the guid of a GS parent entry. |
|
92 2. Null if it is a GS child entry |
|
93 3. Unique id (converted into descriptor) if it is not a GS entry. |
|
94 */ |
|
95 delete iGuid; |
|
96 iGuid = NULL; |
|
97 |
|
98 CAgnEntry* entry = iServer.FetchEntryByIteratorL(iCalSessionImpl.FileId()); |
|
99 |
|
100 // sanity check: if NULL something went wrong with the indexes |
|
101 |
|
102 __ASSERT_ALWAYS(entry, User::Leave(KErrGeneral)); |
|
103 |
|
104 CleanupStack::PushL(entry); |
|
105 |
|
106 if(entry->GsDataType()==CGsData::EParent) |
|
107 { |
|
108 iGuid = entry->Guid().AllocL(); |
|
109 } |
|
110 |
|
111 CleanupStack::PopAndDestroy(entry); |
|
112 } |
|
113 |