|
1 // Copyright (c) 2007-2009 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 // CMsvPlainBodyText.cpp |
|
15 // |
|
16 |
|
17 #include <cmsvplainbodytext.h> |
|
18 #include "cmsvbodytext.h" |
|
19 #include <mmsvstoremanager.h> |
|
20 #include "MSVPANIC.H" |
|
21 #include <txtrich.h> |
|
22 #include <utf.h> |
|
23 #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS |
|
24 #include "msvconsts.h" |
|
25 #endif |
|
26 |
|
27 /** |
|
28 The number of characters that will be converted to Unicode at any one time. |
|
29 */ |
|
30 const TInt KMaxDecodeUnicodeLength = 20; |
|
31 |
|
32 /** |
|
33 The NewL factory function for Write operation. |
|
34 @param aMsvStoreManager The MMsvStoreManager reference to call Store related RFile APIs |
|
35 @param aStore The CMsvStore object. |
|
36 @param aIs8Bit TBool indicating whether to store bdy text as 8/16 bit. |
|
37 @param aCharsetId The charset of the body part. |
|
38 @param aDefaultCharsetId The default charset of the system. |
|
39 @param aMessageId The Id of the message that is to be stored. |
|
40 @param aFs The RFs for handling RFile related operations. |
|
41 @return CMsvPlainBodyText. |
|
42 */ |
|
43 CMsvPlainBodyText* CMsvPlainBodyText::NewL(MMsvStoreManager& aMsvStoreManager, CMsvStore& aStore, TBool aIs8Bit, TUint aCharsetId, TUint aDefaultCharsetId, TMsvId aMessageId, RFs& aFs) |
|
44 { |
|
45 CMsvPlainBodyText* self = new(ELeave)CMsvPlainBodyText(aMsvStoreManager, aStore, aIs8Bit, aCharsetId, aDefaultCharsetId, aMessageId, aFs); |
|
46 CleanupStack::PushL(self); |
|
47 self->ConstructWriteL(); |
|
48 CleanupStack::Pop(self); |
|
49 return self; |
|
50 } |
|
51 |
|
52 /** |
|
53 Overloaded NewL for Read operation. |
|
54 @param aMsvStoreManager The MMsvStoreManager reference to call Store related RFile APIs |
|
55 @param aStore The CMsvStore object. |
|
56 @param aMessageId The Id of the message that is to be stored. |
|
57 @param aFs The RFs for handling RFile related operations. |
|
58 @param aChunkLength The length of the chunk that will be stored/restored in single operaion |
|
59 @return CMsvPlainBodyText. |
|
60 */ |
|
61 CMsvPlainBodyText* CMsvPlainBodyText::NewL(MMsvStoreManager& aMsvStoreManager, CMsvStore& aStore, TMsvId aMessageId, RFs& aFs, TInt aChunkLength) |
|
62 { |
|
63 CMsvPlainBodyText* self = new(ELeave)CMsvPlainBodyText(aMsvStoreManager, aStore, aMessageId, aFs, aChunkLength); |
|
64 CleanupStack::PushL(self); |
|
65 self->ConstructReadL(); |
|
66 CleanupStack::Pop(self); |
|
67 return self; |
|
68 } |
|
69 |
|
70 /** |
|
71 Default Constructor for write operation. |
|
72 */ |
|
73 CMsvPlainBodyText::CMsvPlainBodyText(MMsvStoreManager& aMsvStoreManager, CMsvStore& aStore, TBool aIs8Bit, TUint aCharsetId, TUint aDefaultCharsetId, TMsvId aMessageId,RFs& aFs) |
|
74 : CMsgActive(EPriorityNormal), iMsvStoreManager(aMsvStoreManager), iStore(aStore), iIs8Bit(aIs8Bit), iCharsetId(aCharsetId), iDefaultCharsetId(aDefaultCharsetId), |
|
75 iMessageId(aMessageId), iFSession(aFs), iMsvFileStatus(EMsvFileWriting) |
|
76 { |
|
77 iAvailable = CCnvCharacterSetConverter::ENotAvailable; |
|
78 CActiveScheduler::Add(this); |
|
79 } |
|
80 |
|
81 /** |
|
82 Default Constructor called for Read operation.. |
|
83 */ |
|
84 CMsvPlainBodyText::CMsvPlainBodyText(MMsvStoreManager& aMsvStoreManager, CMsvStore& aStore, TMsvId aMessageId, RFs& aFs, TInt aChunkLength) |
|
85 : CMsgActive(EPriorityNormal), iMsvStoreManager(aMsvStoreManager), iStore(aStore), iMessageId(aMessageId), iFSession(aFs), iPos(0), iChunkMaxLength(aChunkLength), |
|
86 iStartPosOfNextChunk(0), iMsvFileStatus(EMsvFileReading) |
|
87 { |
|
88 iAvailable = CCnvCharacterSetConverter::ENotAvailable; |
|
89 CActiveScheduler::Add(this); |
|
90 } |
|
91 |
|
92 /** |
|
93 ConstructWriteL for creating and writing to the plain bodytext file. |
|
94 */ |
|
95 void CMsvPlainBodyText::ConstructWriteL() |
|
96 { |
|
97 RMsvWriteStream out; |
|
98 |
|
99 if(iIs8Bit) |
|
100 { |
|
101 out.AssignLC(iStore, KMsvPlainBodyText8); |
|
102 out.WriteUint32L(iCharsetId); |
|
103 out.WriteUint32L(iDefaultCharsetId); |
|
104 } |
|
105 else |
|
106 { |
|
107 out.AssignLC(iStore, KMsvPlainBodyText16); |
|
108 } |
|
109 // iIsCommitted will be EFalse at this point. |
|
110 out.WriteUint32L(iIsCommitted); |
|
111 |
|
112 TBuf<KFileNameFixedWidth> fileName; |
|
113 fileName.NumFixedWidth(iMessageId, EHex, KFileNameFixedWidth); |
|
114 |
|
115 out << (TDes&)fileName; |
|
116 out.CommitL(); |
|
117 out.Close(); |
|
118 iStore.CommitL(); |
|
119 |
|
120 iMsvStoreManager.CreatePlainTextFileL(iFile, iMessageId); |
|
121 |
|
122 iRemainingConvertedData.Create(KMaxDecodeUnicodeLength); |
|
123 CleanupStack::PopAndDestroy(&out); |
|
124 } |
|
125 |
|
126 /** |
|
127 ConstructL for Read operation. |
|
128 */ |
|
129 void CMsvPlainBodyText::ConstructReadL() |
|
130 { |
|
131 // Check whether the data is stored in old-style non-chunk storage mechanism. |
|
132 if(iStore.IsPresentL(KMsvEntryRichTextBody) || iStore.IsPresentL(KMsv8BitEncodedBodyData)) |
|
133 { |
|
134 iParaLayer = CParaFormatLayer::NewL(); |
|
135 iCharLayer = CCharFormatLayer::NewL(); |
|
136 iRichText = CRichText::NewL(iParaLayer, iCharLayer); |
|
137 iStore.RestoreBodyTextL(*iRichText); |
|
138 } |
|
139 else // Data is stored using the new chunk storage mechanism. |
|
140 { |
|
141 RMsvReadStream in; |
|
142 if(iStore.IsPresentL(KMsvPlainBodyText8)) |
|
143 { |
|
144 in.OpenLC(iStore, KMsvPlainBodyText8); |
|
145 iCharsetId = in.ReadUint32L(); |
|
146 iDefaultCharsetId = in.ReadUint32L(); |
|
147 iIs8Bit = ETrue; |
|
148 } |
|
149 else if(iStore.IsPresentL(KMsvPlainBodyText16)) |
|
150 { |
|
151 in.OpenLC(iStore, KMsvPlainBodyText16); |
|
152 } |
|
153 else |
|
154 { |
|
155 // The stream is not found. |
|
156 User::Leave(KErrNotFound); |
|
157 } |
|
158 iIsCommitted = in.ReadUint32L(); |
|
159 HBufC* filename = HBufC::NewLC(in,KMaxFileName); |
|
160 iFilePath = HBufC::NewL(KMaxFileName); |
|
161 |
|
162 TPtr16 fileNamePtr = iFilePath->Des(); |
|
163 iMsvStoreManager.BodyTextFilePathL(iMessageId, fileNamePtr); |
|
164 fileNamePtr.Append(*filename); |
|
165 iMsvStoreManager.OpenBodyTextFileForReadL(iFile, iMessageId, *iFilePath); |
|
166 |
|
167 iRemainingConvertedData.Create(KMaxDecodeUnicodeLength); |
|
168 CleanupStack::PopAndDestroy(2,&in);// filename, in |
|
169 } |
|
170 } |
|
171 |
|
172 /** |
|
173 Destructor |
|
174 */ |
|
175 EXPORT_C CMsvPlainBodyText::~CMsvPlainBodyText() |
|
176 { |
|
177 delete iConverter; |
|
178 delete iParaLayer; |
|
179 delete iCharLayer; |
|
180 delete iRichText; |
|
181 delete iFilePath; |
|
182 iTempChunk16.Close(); |
|
183 iRemainingConvertedData.Close(); |
|
184 |
|
185 iStartPosOfEachChunkInFile.Close(); |
|
186 iRfileReadBuf8.Close(); |
|
187 |
|
188 // Cannot leave in destructor, so ignore any error. |
|
189 // iFile will be closed by a call to RevertL method. |
|
190 TRAP_IGNORE(RevertL()); |
|
191 } |
|
192 |
|
193 /** |
|
194 Store the plain body text part in chunks. |
|
195 @param aChunk. The 8 bit chunk that is to be stored. |
|
196 @param aStatus. The TRequestStatus parameter for this request. |
|
197 @leave KErrAccessDenied. If CMsvStore was opened in Read mode or |
|
198 If CommitL is already called. |
|
199 @leave Other Standard system-wide error codes. |
|
200 @return void. |
|
201 */ |
|
202 EXPORT_C void CMsvPlainBodyText::StoreChunkL(const TDesC8& aChunk, TRequestStatus& aStatus) |
|
203 { |
|
204 iTempChunk16.Close(); |
|
205 if(iIsCommitted || iMsvFileStatus == EMsvFileReading) |
|
206 { |
|
207 // Leave if CommitL is already called or CMsvStore is opened in Read mode. |
|
208 User::Leave(KErrAccessDenied); |
|
209 } |
|
210 |
|
211 if(iIs8Bit) |
|
212 { |
|
213 iFile.Write(aChunk, aStatus); |
|
214 } |
|
215 // convert to 16.......... |
|
216 else |
|
217 { |
|
218 ConvertChunkToUnicodeForStoreL(aChunk); |
|
219 iFile.Write(iRfileWritePtr8, aStatus); |
|
220 } |
|
221 } |
|
222 |
|
223 /** |
|
224 Store the plain body text part in chunks,synchronous version. |
|
225 @param aChunk. The 8 bit chunk that is to be stored. |
|
226 @leave KErrAccessDenied. If CMsvStore was opened in Read mode or |
|
227 If CommitL is already called. |
|
228 @leave Other Standard system-wide error codes. |
|
229 @return void. |
|
230 */ |
|
231 EXPORT_C void CMsvPlainBodyText::StoreChunkL(const TDesC8& aChunk) |
|
232 { |
|
233 iTempChunk16.Close(); |
|
234 if(iIsCommitted || iMsvFileStatus == EMsvFileReading) |
|
235 { |
|
236 // Leave if CommitL is already called or CMsvStore is opened in Read mode. |
|
237 User::Leave(KErrAccessDenied); |
|
238 } |
|
239 if(iIs8Bit) |
|
240 { |
|
241 User::LeaveIfError(iFile.Write(aChunk)); |
|
242 } |
|
243 else |
|
244 { |
|
245 ConvertChunkToUnicodeForStoreL(aChunk); |
|
246 User::LeaveIfError(iFile.Write(iRfileWritePtr8)); |
|
247 } |
|
248 } |
|
249 |
|
250 /** |
|
251 Converts the 8 bit chunk to Unicode. |
|
252 @param aChunk The 8bit chunk to be converted. |
|
253 @return void. |
|
254 */ |
|
255 void CMsvPlainBodyText::ConvertChunkToUnicodeForStoreL(const TDesC8& aChunk) |
|
256 { |
|
257 TInt chunkLength = aChunk.Length(); |
|
258 TPtrC8 chunkPtr8(aChunk); |
|
259 |
|
260 iTempChunk16.Create(chunkLength); |
|
261 |
|
262 PrepareToConvertL(); |
|
263 TInt charsetState = CCnvCharacterSetConverter::KStateDefault; |
|
264 |
|
265 if (iAvailable == CCnvCharacterSetConverter::ENotAvailable) |
|
266 { |
|
267 // Copy data if character convertor not available |
|
268 iTempChunk16.Copy(chunkPtr8); |
|
269 } |
|
270 else |
|
271 { |
|
272 TInt rem = iConverter->ConvertToUnicode(iTempChunk16, chunkPtr8, charsetState); |
|
273 if (rem < 0) |
|
274 { |
|
275 // Copy the data without conversion,if there was error while converting. |
|
276 iTempChunk16.Copy(aChunk); |
|
277 } |
|
278 else if(rem > 0) |
|
279 { |
|
280 // Some of the characters were not converted because the output buffer |
|
281 // was not long enough, so reallocate the output buffer. |
|
282 do |
|
283 { |
|
284 TBuf<KMaxDecodeUnicodeLength> buf; |
|
285 chunkPtr8.Set(chunkPtr8.Right(rem)); |
|
286 rem = iConverter->ConvertToUnicode(buf, chunkPtr8, charsetState); |
|
287 if(iTempChunk16.Length() + buf.Length() > iTempChunk16.MaxLength()) |
|
288 { |
|
289 iTempChunk16.ReAllocL(iTempChunk16.Length() + buf.Length()); |
|
290 } |
|
291 iTempChunk16.Append(buf); |
|
292 }while(rem > 0); |
|
293 } |
|
294 } |
|
295 TPtrC8 convertedChunk8((TUint8*)(iTempChunk16.Ptr()), iTempChunk16.Length()*2); |
|
296 iRfileWritePtr8.Set(convertedChunk8); |
|
297 } |
|
298 |
|
299 /** |
|
300 Store the body part in chunks(16 bit version). |
|
301 @param aChunk The 16 bit chunk that is to be stored. |
|
302 @param aStatus The TRequestStatus parameter for this request. |
|
303 @leave KErrNotSupported If the 8-bit storage was enabled. |
|
304 @leave KErrAccessDenied If CMsvStore was opened in Read mode or |
|
305 IfCommitL is already called. |
|
306 @leave Other Standard system-wide error codes. |
|
307 @return void |
|
308 */ |
|
309 EXPORT_C void CMsvPlainBodyText::StoreChunkL(const TDesC16& aChunk, TRequestStatus& aStatus) |
|
310 { |
|
311 if(iIs8Bit) |
|
312 { |
|
313 User::Leave(KErrNotSupported); |
|
314 } |
|
315 if(iIsCommitted || iMsvFileStatus == EMsvFileReading) |
|
316 { |
|
317 // Leave if CommitL is already called or CMsvStore is opened in Read mode. |
|
318 User::Leave(KErrAccessDenied); |
|
319 } |
|
320 |
|
321 TPtrC8 inFileBuf8((TUint8*)(aChunk.Ptr()), aChunk.Length()*2); |
|
322 iFile.Write(inFileBuf8, aStatus); |
|
323 } |
|
324 |
|
325 /** |
|
326 Store the body part in chunks(16 bit synchronous version). |
|
327 @param aChunk The 16 bit chunk that is to be stored. |
|
328 @leave KErrNotSupported If the 8-bit storage was enabled. |
|
329 @leave KErrAccessDenied If CMsvStore was opened in Read mode or |
|
330 If CommitL is already called. |
|
331 @leave Other Standard system-wide error codes. |
|
332 @return void |
|
333 */ |
|
334 EXPORT_C void CMsvPlainBodyText::StoreChunkL(const TDesC16& aChunk) |
|
335 { |
|
336 if(iIs8Bit) |
|
337 { |
|
338 User::Leave(KErrNotSupported); |
|
339 } |
|
340 if(iIsCommitted || iMsvFileStatus == EMsvFileReading) |
|
341 { |
|
342 // Leave if CommitL is already called or CMsvStore is opened in Read mode. |
|
343 User::Leave(KErrAccessDenied); |
|
344 } |
|
345 |
|
346 TPtrC8 inFileBuf8((TUint8*)(aChunk.Ptr()), aChunk.Length()*2); |
|
347 User::LeaveIfError(iFile.Write(inFileBuf8)); |
|
348 } |
|
349 |
|
350 /** |
|
351 Returns the size of body text in bytes. |
|
352 @param None. |
|
353 @return TInt The size of the plain body text stored in bytes. |
|
354 */ |
|
355 EXPORT_C TInt CMsvPlainBodyText::Size() |
|
356 { |
|
357 TInt size=0; |
|
358 if(iRichText) |
|
359 { |
|
360 size = iRichText->DocumentLength() * 2;// Since Unicode multiply by 2. |
|
361 } |
|
362 else |
|
363 { |
|
364 iFile.Size(size); |
|
365 } |
|
366 return size; |
|
367 } |
|
368 |
|
369 /** |
|
370 Converts and stores the CRichText contents to a plain text. |
|
371 @param aRichText The CRichText object that will be stored as plain body text. |
|
372 @leave KErrNotSupported If CMsvStore was opened in Read mode or |
|
373 If CommitL is already called. |
|
374 @leave Other Standard system-wide error codes. |
|
375 @return void. |
|
376 */ |
|
377 EXPORT_C void CMsvPlainBodyText::StoreRichTextAsPlainTextL(CRichText& aRichText) |
|
378 { |
|
379 if(iIs8Bit) |
|
380 { |
|
381 User::Leave(KErrNotSupported); |
|
382 } |
|
383 if(iIsCommitted || iMsvFileStatus == EMsvFileReading) |
|
384 { |
|
385 // Leave if CommitL is already called or CMsvStore is opened in Read mode. |
|
386 User::Leave(KErrAccessDenied); |
|
387 } |
|
388 // create a buffer of 512 bytes to extract data from a rich text instead of extracting |
|
389 // the entire richtext so that 2 copies of the mail is not created in RAM. |
|
390 TBuf<KMsvDecodeChunkLength> richBuf; |
|
391 TInt currentPos = 0; |
|
392 TInt richTextLen = aRichText.DocumentLength(); |
|
393 TInt lengthToExtract = richTextLen; |
|
394 while(richTextLen > 0) |
|
395 { |
|
396 if(lengthToExtract > KMsvDecodeChunkLength) |
|
397 { |
|
398 lengthToExtract = KMsvDecodeChunkLength; |
|
399 } |
|
400 aRichText.Extract(richBuf,currentPos,lengthToExtract); |
|
401 TPtrC8 richTextPtr1((TUint8*)(richBuf.Ptr()), richBuf.Length() * 2); |
|
402 User::LeaveIfError(iFile.Write(richTextPtr1)); |
|
403 currentPos += lengthToExtract; |
|
404 richTextLen -=lengthToExtract; |
|
405 if(richTextLen <= lengthToExtract) |
|
406 { |
|
407 lengthToExtract = richTextLen; |
|
408 } |
|
409 } |
|
410 } |
|
411 |
|
412 /** |
|
413 Retrieve the next chunk of the plain body text. |
|
414 @param aChunk The output parameter contains the requested chunk. |
|
415 @param aStatus. The TRequestStatus for this request. |
|
416 @leave KErrAccessDenied If CMsvStore was opened in Write mode. |
|
417 @leave KErrNotSupported If 16-bit storage is enabled. |
|
418 @leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength. |
|
419 @leave Other Standard system-wide error codes. |
|
420 @return void |
|
421 */ |
|
422 EXPORT_C void CMsvPlainBodyText::NextChunkL(TDes8& aChunk, TRequestStatus& aStatus) |
|
423 { |
|
424 if(!iIs8Bit) |
|
425 { |
|
426 // If 16-bit storage is enabled. |
|
427 User::Leave(KErrNotSupported); |
|
428 } |
|
429 if(iMsvFileStatus == EMsvFileWriting) |
|
430 { |
|
431 // Leave if CMsvStore is opened in Write mode. |
|
432 User::Leave(KErrAccessDenied); |
|
433 } |
|
434 if(aChunk.MaxLength() < iChunkMaxLength) |
|
435 { |
|
436 User::Leave(KErrUnderflow); |
|
437 } |
|
438 |
|
439 iChunk8 = &aChunk; |
|
440 iChunk8->SetLength(0); |
|
441 |
|
442 iRetrieving8bit = ETrue; |
|
443 |
|
444 //store the current position of the file so that if request cancels and for next |
|
445 // call to NextChunkL() will attempt to read the same chunk that was cancelled |
|
446 iCurrentFilePos = 0; |
|
447 User::LeaveIfError(iFile.Seek(ESeekCurrent, iCurrentFilePos)); |
|
448 |
|
449 Queue(aStatus); |
|
450 iFile.Read(aChunk, iChunkMaxLength, iStatus); |
|
451 SetActive(); |
|
452 } |
|
453 |
|
454 /** |
|
455 Retrieve the next chunk of the plain body text. |
|
456 @param aChunk The output parameter contains the requested chunk. |
|
457 @leave KErrNotSupported If CMsvStore was opened in Write mode. |
|
458 @leave KErrNotSupported If 16-bit storage is enabled. |
|
459 @leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength. |
|
460 @leave Other Standard system-wide error codes. |
|
461 @return void |
|
462 */ |
|
463 EXPORT_C void CMsvPlainBodyText::NextChunkL(TDes8& aChunk) |
|
464 { |
|
465 if(!iIs8Bit) |
|
466 { |
|
467 // If 16-bit storage is enabled. |
|
468 User::Leave(KErrNotSupported); |
|
469 } |
|
470 if(iMsvFileStatus == EMsvFileWriting) |
|
471 { |
|
472 // Leave if CMsvStore is opened in Write mode. |
|
473 User::Leave(KErrAccessDenied); |
|
474 } |
|
475 if(aChunk.MaxLength() < iChunkMaxLength) |
|
476 { |
|
477 User::Leave(KErrUnderflow); |
|
478 } |
|
479 aChunk.SetLength(0); |
|
480 User::LeaveIfError(iFile.Read(aChunk, iChunkMaxLength)); |
|
481 |
|
482 if(aChunk.Length()>0) |
|
483 { |
|
484 iReadChunkLength = aChunk.Length(); |
|
485 } |
|
486 } |
|
487 |
|
488 /** |
|
489 Retrieve the next chunk of the plain body text. If body is stored as 8bit, the chunk is |
|
490 converted to unicode.Unconverted bytes will be converted while reading the next chunk. |
|
491 @param aChunk The output parameter contains the requested chunk.If no more data is in Store this |
|
492 contains NULL descriptor. |
|
493 @param aStatus The TRequestStatus for this request. |
|
494 @leave KErrAccessDenied If CMsvStore was opened in Write mode. |
|
495 @leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength. |
|
496 @leave Other Standard system-wide error codes. |
|
497 @return void |
|
498 */ |
|
499 EXPORT_C void CMsvPlainBodyText::NextChunkL(TDes16& aChunk, TRequestStatus& aStatus) |
|
500 { |
|
501 if(iMsvFileStatus == EMsvFileWriting) |
|
502 { |
|
503 // Leave if CMsvStore is opened in Write mode. |
|
504 User::Leave(KErrAccessDenied); |
|
505 } |
|
506 |
|
507 if(aChunk.MaxLength() < iChunkMaxLength) |
|
508 { |
|
509 User::Leave(KErrUnderflow); |
|
510 } |
|
511 |
|
512 if(iRichText) |
|
513 { |
|
514 ExtractNextChunkFromRichText(aChunk); |
|
515 TRequestStatus *status=&aStatus; |
|
516 User::RequestComplete(status, KErrNone); |
|
517 } |
|
518 else |
|
519 { |
|
520 iRfileReadBuf8.Close(); |
|
521 iChunk16 = &aChunk; |
|
522 iChunk16->SetLength(0); |
|
523 |
|
524 //store the current position of the file so that if request cancels and for next |
|
525 // call to NextChunkL() will attempt to read the same chunk that was cancelled |
|
526 iCurrentFilePos = 0; |
|
527 User::LeaveIfError(iFile.Seek(ESeekCurrent, iCurrentFilePos)); |
|
528 |
|
529 Queue(aStatus); |
|
530 if(iIs8Bit) |
|
531 { |
|
532 // if there is any converted data then append to aChunk |
|
533 if(iRemainingConvertedData.Length() != 0) |
|
534 { |
|
535 iChunk16->Append(iRemainingConvertedData); |
|
536 iRemainingConvertedData.SetLength(0); |
|
537 } |
|
538 |
|
539 iRfileReadBuf8.Create(iChunkMaxLength); |
|
540 // 8-bit data read will be converted to Unicode in DoRunL. |
|
541 iFile.Read(iRfileReadBuf8, iChunkMaxLength, iStatus); |
|
542 SetActive(); |
|
543 } |
|
544 else |
|
545 { |
|
546 iRfileReadBuf8.Create(iChunkMaxLength*2); |
|
547 iFile.Read(iRfileReadBuf8, iChunkMaxLength*2, iStatus); |
|
548 SetActive(); |
|
549 } |
|
550 } |
|
551 } |
|
552 |
|
553 /** |
|
554 Retrieve the next chunk of the plain body text. If body is stored as 8bit, convert the chunk to Unicode. |
|
555 Unconverted bytes will be converted while reading the next chunk. |
|
556 @param aChunk The output parameter contains the requested chunk.If no more data is in Store this |
|
557 contains NULL descriptor. |
|
558 @leave KErrAccessDenied If CMsvStore was opened in Write mode. |
|
559 @leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength. |
|
560 @leave Other Standard system-wide error codes. |
|
561 @return void |
|
562 */ |
|
563 EXPORT_C void CMsvPlainBodyText::NextChunkL(TDes16& aChunk) |
|
564 { |
|
565 if(iMsvFileStatus == EMsvFileWriting) |
|
566 { |
|
567 // Leave if CMsvStore is opened in Write mode. |
|
568 User::Leave(KErrAccessDenied); |
|
569 } |
|
570 |
|
571 if(aChunk.MaxLength() < iChunkMaxLength) |
|
572 { |
|
573 User::Leave(KErrUnderflow); |
|
574 } |
|
575 |
|
576 if(iRichText) |
|
577 { |
|
578 ExtractNextChunkFromRichText(aChunk); |
|
579 } |
|
580 else if(iIs8Bit) |
|
581 { |
|
582 iRfileReadBuf8.Close(); |
|
583 iChunk16 = &aChunk; |
|
584 |
|
585 iChunk16->SetLength(0); |
|
586 |
|
587 TInt numOfBytesInCurrentChunk = 0; |
|
588 // if there is any converted data then append to aChunk |
|
589 if(iRemainingConvertedData.Length() != 0) |
|
590 { |
|
591 iChunk16->Append(iRemainingConvertedData); |
|
592 iRemainingConvertedData.SetLength(0); |
|
593 } |
|
594 |
|
595 PrepareToConvertL(); |
|
596 if(iAvailable != CCnvCharacterSetConverter::EAvailable) |
|
597 { |
|
598 User::Leave(KErrNotSupported); |
|
599 } |
|
600 |
|
601 iIsLastChunk = EFalse; |
|
602 while(iChunk16->Length() < iChunkMaxLength && !iIsLastChunk) |
|
603 { |
|
604 iRfileReadBuf8.Create(iChunkMaxLength); |
|
605 iFile.Read(iRfileReadBuf8, iChunkMaxLength); |
|
606 // iRfileReadBuf8 will be closed when ConvertChunkToUnicodeForRestoreL returns. |
|
607 numOfBytesInCurrentChunk = ConvertChunkToUnicodeForRestoreL(); |
|
608 } |
|
609 |
|
610 // Push start position of current chunk in to the stack. |
|
611 iStartPosOfEachChunkInFile.Append(iStartPosOfNextChunk); |
|
612 iStartPosOfNextChunk += numOfBytesInCurrentChunk; |
|
613 iReadChunkLength = numOfBytesInCurrentChunk; |
|
614 } |
|
615 else // KMsvPlainBodyText16 |
|
616 { |
|
617 HBufC8* inBuffer = HBufC8::NewLC(iChunkMaxLength * 2); |
|
618 TPtr8 inPtr16(inBuffer->Des()); |
|
619 iFile.Read(inPtr16, iChunkMaxLength * 2); // Multiply by 2 to get no of bytes. |
|
620 TPtrC16 ptr16((TUint16*)(inBuffer->Ptr()), inBuffer->Length() / 2); |
|
621 aChunk.Copy(ptr16); |
|
622 CleanupStack::PopAndDestroy(inBuffer); |
|
623 if(aChunk.Length()) |
|
624 { |
|
625 iReadChunkLength = aChunk.Length(); |
|
626 } |
|
627 |
|
628 } |
|
629 } |
|
630 |
|
631 /** |
|
632 Extracts a chunk of iChunkMaxLength or less, from the CRichText object. |
|
633 */ |
|
634 void CMsvPlainBodyText::ExtractNextChunkFromRichText(TDes16& aChunk) |
|
635 { |
|
636 TInt docLength = iRichText->DocumentLength(); |
|
637 // If we are at the end of the body text. |
|
638 if(iPos >= docLength) |
|
639 { |
|
640 aChunk.Copy(KNullDesC16); |
|
641 } |
|
642 else |
|
643 { |
|
644 if(iPos+iChunkMaxLength <= docLength) |
|
645 { |
|
646 iRichText->Extract(aChunk, iPos, iChunkMaxLength); |
|
647 iPos += iChunkMaxLength; |
|
648 iReadChunkLength = iChunkMaxLength; |
|
649 } |
|
650 else // If it is the last chunk. |
|
651 { |
|
652 iRichText->Extract(aChunk, iPos, docLength-iPos); |
|
653 iReadChunkLength = docLength-iPos; |
|
654 iPos = docLength; |
|
655 } |
|
656 } |
|
657 } |
|
658 |
|
659 /** |
|
660 Retrieve the previous chunk of the plain body text asynchronously. |
|
661 @param aChunk The output parameter containing the requested chunk on completion. |
|
662 @param aStatus The TRequestStatus for this request. |
|
663 @leave KErrNotSupported If 16-bit storage is enabled. |
|
664 @leave KErrAccessDenied If CMsvStore was opened in Write mode. |
|
665 @leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength. |
|
666 @leave Other Standard system-wide error codes. |
|
667 @return void |
|
668 */ |
|
669 EXPORT_C void CMsvPlainBodyText::PreviousChunkL(TDes8& aChunk, TRequestStatus& aStatus) |
|
670 { |
|
671 TInt currentPos = 0; |
|
672 User::LeaveIfError(iFile.Seek(ESeekCurrent, currentPos)); |
|
673 |
|
674 // point to the position from where previous chunk was read. |
|
675 currentPos -= iReadChunkLength; |
|
676 // point to the position from where the new chunk is to be read. |
|
677 currentPos -= iChunkMaxLength; |
|
678 |
|
679 if(currentPos >= 0) |
|
680 { |
|
681 iFile.Seek(ESeekStart, currentPos); |
|
682 NextChunkL(aChunk, aStatus); |
|
683 } |
|
684 else |
|
685 { |
|
686 aChunk.Copy(KNullDesC8); |
|
687 TRequestStatus *status = &aStatus; |
|
688 User::RequestComplete(status, KErrNone); |
|
689 } |
|
690 } |
|
691 |
|
692 /** |
|
693 Retrieve the previous chunk of the plain body text. |
|
694 @param aChunk The output parameter containing the requested chunk. |
|
695 @leave KErrNotSupported If 16-bit storage is enabled. |
|
696 @leave KErrAccessDenied If CMsvStore was opened in Write mode. |
|
697 @leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength. |
|
698 @leave Other Standard system-wide error codes. |
|
699 @return void |
|
700 */ |
|
701 EXPORT_C void CMsvPlainBodyText::PreviousChunkL(TDes8& aChunk) |
|
702 { |
|
703 TInt currentPos = 0; |
|
704 iFile.Seek(ESeekCurrent, currentPos); |
|
705 |
|
706 // point to the position from where previous chunk was read. |
|
707 currentPos -= iReadChunkLength; |
|
708 // point to the position from where the new chunk is to be read. |
|
709 currentPos -= iChunkMaxLength; |
|
710 |
|
711 if(currentPos >= 0) |
|
712 { |
|
713 iFile.Seek(ESeekStart, currentPos ); |
|
714 NextChunkL(aChunk); |
|
715 } |
|
716 else |
|
717 { |
|
718 aChunk.Copy(KNullDesC8); |
|
719 } |
|
720 } |
|
721 |
|
722 /** |
|
723 Retrieve the previous chunk of the plain body text asynchronously.DoRunl converts the chunk to unicode. |
|
724 @param aChunk The output parameter containing the requested chunk on completion. |
|
725 @param aStatus The TRequestStatus for this request. |
|
726 @leave KErrNotSupported If CMsvStore was opened in Write mode. |
|
727 @leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength. |
|
728 @leave Other Standard system-wide error codes. |
|
729 @return void |
|
730 */ |
|
731 EXPORT_C void CMsvPlainBodyText::PreviousChunkL(TDes16& aChunk, TRequestStatus& aStatus) |
|
732 { |
|
733 iPrevChunk = ETrue; |
|
734 if(iRichText) |
|
735 { |
|
736 ExtractPreviousChunkFromRichText(aChunk); |
|
737 TRequestStatus *status = &aStatus; |
|
738 User::RequestComplete(status, KErrNone); |
|
739 } |
|
740 else |
|
741 { |
|
742 if(iIs8Bit && iStartPosOfEachChunkInFile.Count() >= 2) |
|
743 { |
|
744 delete iRemainingUnConvertedData; |
|
745 iRemainingUnConvertedData = NULL; |
|
746 TInt count = iStartPosOfEachChunkInFile.Count() - 1; |
|
747 TInt numOfBytes = iStartPosOfEachChunkInFile[count] - iStartPosOfEachChunkInFile[count - 1]; |
|
748 iFile.Seek(ESeekStart, iStartPosOfEachChunkInFile[count - 1] ); |
|
749 iReadChunkLength = numOfBytes; |
|
750 NextChunkL(aChunk,aStatus); |
|
751 } |
|
752 else |
|
753 { |
|
754 TInt startPos = 0; |
|
755 TInt currentPos = 0; |
|
756 User::LeaveIfError(iFile.Seek(ESeekCurrent, currentPos)); |
|
757 TInt prevChunkPos = 0; |
|
758 if(currentPos > 0) |
|
759 { |
|
760 startPos = currentPos - iReadChunkLength * 2; |
|
761 if(startPos > 0) |
|
762 { |
|
763 prevChunkPos = startPos - iChunkMaxLength * 2; |
|
764 if(prevChunkPos >= 0) |
|
765 { |
|
766 iFile.Seek(ESeekStart, prevChunkPos); |
|
767 NextChunkL(aChunk,aStatus); |
|
768 } |
|
769 else |
|
770 { |
|
771 iChunk16->Copy(KNullDesC16); |
|
772 TRequestStatus *status = &aStatus; |
|
773 User::RequestComplete(status, KErrNone); |
|
774 } |
|
775 } |
|
776 else |
|
777 { |
|
778 aChunk.Copy(KNullDesC16); |
|
779 TRequestStatus *status = &aStatus; |
|
780 User::RequestComplete(status, KErrNone); |
|
781 } |
|
782 } |
|
783 else |
|
784 { |
|
785 aChunk.Copy(KNullDesC16); |
|
786 TRequestStatus *status = &aStatus; |
|
787 User::RequestComplete(status, KErrNone); |
|
788 } |
|
789 } |
|
790 } |
|
791 } |
|
792 |
|
793 /** |
|
794 Retrieve the Previouschunk of the plain body text. If body is stored as 8bit, convert the chunk to Unicode. |
|
795 @param aChunk The output parameter contains the requested chunk. |
|
796 @leave KErrNotSupported If CMsvStore was opened in Write mode. |
|
797 @leave KErrUnderflow If aChunk MaxLength is less than iChunkMaxLength. |
|
798 @leave Other Standard system-wide error codes. |
|
799 @return void |
|
800 */ |
|
801 EXPORT_C void CMsvPlainBodyText::PreviousChunkL(TDes16& aChunk) |
|
802 { |
|
803 if(iRichText) |
|
804 { |
|
805 ExtractPreviousChunkFromRichText(aChunk); |
|
806 } |
|
807 else |
|
808 { |
|
809 if(iIs8Bit && iStartPosOfEachChunkInFile.Count() >= 2) |
|
810 { |
|
811 delete iRemainingUnConvertedData; |
|
812 iRemainingUnConvertedData = NULL; |
|
813 |
|
814 TInt count = iStartPosOfEachChunkInFile.Count() - 1; |
|
815 |
|
816 iFile.Seek(ESeekStart, iStartPosOfEachChunkInFile[count - 1] ); |
|
817 TInt numOfBytes = iStartPosOfEachChunkInFile[count] - iStartPosOfEachChunkInFile[count - 1]; |
|
818 iReadChunkLength = numOfBytes; |
|
819 // Pop one position from iStartPosOfEachChunkInFile |
|
820 iStartPosOfNextChunk = iStartPosOfEachChunkInFile[count]; |
|
821 iStartPosOfEachChunkInFile.Remove(count); |
|
822 NextChunkL(aChunk); |
|
823 } |
|
824 else |
|
825 { |
|
826 TInt startPos = 0; |
|
827 TInt currentPos = 0; |
|
828 iFile.Seek(ESeekCurrent, currentPos); |
|
829 TInt prevChunkPos = 0; |
|
830 |
|
831 if(currentPos > 0) |
|
832 { |
|
833 startPos = currentPos - iReadChunkLength * 2;// Multiply by 2 to get no of bytes. |
|
834 if(startPos > 0) |
|
835 { |
|
836 prevChunkPos = startPos - iChunkMaxLength * 2;// Multiply by 2 to get no of bytes. |
|
837 if(prevChunkPos >= 0) |
|
838 { |
|
839 iFile.Seek(ESeekStart, prevChunkPos ); |
|
840 NextChunkL(aChunk); |
|
841 } |
|
842 else |
|
843 { |
|
844 aChunk.Copy(KNullDesC16); |
|
845 } |
|
846 } |
|
847 } |
|
848 } |
|
849 } |
|
850 } |
|
851 |
|
852 /** |
|
853 Extracts a chunk of iChunkMaxLength or less, from the CRichText object. |
|
854 */ |
|
855 void CMsvPlainBodyText::ExtractPreviousChunkFromRichText(TDes16& aChunk) |
|
856 { |
|
857 iPos -= iReadChunkLength; |
|
858 if(iPos > 0) |
|
859 { |
|
860 iPos -= iChunkMaxLength; |
|
861 if(iPos >= 0) |
|
862 { |
|
863 iRichText->Extract(aChunk, iPos, iChunkMaxLength); |
|
864 iPos += iChunkMaxLength; |
|
865 iReadChunkLength = iChunkMaxLength; |
|
866 } |
|
867 } |
|
868 } |
|
869 |
|
870 /** |
|
871 Asynchronously retrives the body text chunks.If body is stored as 8bit, converts the chunk to Unicode. |
|
872 @param None. |
|
873 @return |
|
874 */ |
|
875 void CMsvPlainBodyText::DoRunL() |
|
876 { |
|
877 User::LeaveIfError(iStatus.Int()); |
|
878 if(iRetrieving8bit) |
|
879 { |
|
880 if(iChunk8->Length()) |
|
881 { |
|
882 iReadChunkLength = iChunk8->Length(); |
|
883 } |
|
884 Complete(iStatus.Int()); |
|
885 iRetrieving8bit = EFalse; |
|
886 } |
|
887 else |
|
888 { |
|
889 iIsLastChunk = EFalse; |
|
890 if (iIs8Bit) |
|
891 { |
|
892 PrepareToConvertL(); |
|
893 if(iAvailable != CCnvCharacterSetConverter::EAvailable) |
|
894 { |
|
895 User::Leave(KErrNotSupported); |
|
896 } |
|
897 TInt numOfBytesInCurrentChunk = ConvertChunkToUnicodeForRestoreL(); |
|
898 if(iChunk16->Length() < iChunkMaxLength && !iIsLastChunk) |
|
899 { |
|
900 // iRfileReadBuf8 will be closed when ConvertChunkToUnicodeForRestoreL returns. |
|
901 iRfileReadBuf8.Create(iChunkMaxLength); |
|
902 //store the current position of the file so that if request cancels and for next |
|
903 // call to NextChunkL() will attempt to read the same chunk that was cancelled |
|
904 iCurrentFilePos = 0; |
|
905 User::LeaveIfError(iFile.Seek(ESeekCurrent, iCurrentFilePos)); |
|
906 iFile.Read(iRfileReadBuf8, iChunkMaxLength, iStatus); |
|
907 SetActive(); |
|
908 } |
|
909 else |
|
910 { |
|
911 if(iPrevChunk) |
|
912 { |
|
913 //Pop one position from iStartPosOfEachChunkInFile |
|
914 TInt count = iStartPosOfEachChunkInFile.Count() - 1; |
|
915 iStartPosOfNextChunk = iStartPosOfEachChunkInFile[count]; |
|
916 iStartPosOfEachChunkInFile.Remove(count); |
|
917 iPrevChunk = EFalse; |
|
918 } |
|
919 else |
|
920 { |
|
921 // Push Start position of current chunk in to the stack. |
|
922 iStartPosOfEachChunkInFile.Append(iStartPosOfNextChunk); |
|
923 iStartPosOfNextChunk += numOfBytesInCurrentChunk; |
|
924 } |
|
925 iReadChunkLength = numOfBytesInCurrentChunk; |
|
926 Complete(iStatus.Int()); |
|
927 } |
|
928 } |
|
929 else |
|
930 { |
|
931 TPtrC16 ptr16((TUint16*)(iRfileReadBuf8.Ptr()), iRfileReadBuf8.Length()/2); |
|
932 iChunk16->Copy(ptr16); |
|
933 iRfileReadBuf8.Close(); |
|
934 Complete(iStatus.Int()); |
|
935 iReadChunkLength = ptr16.Length(); |
|
936 } |
|
937 } |
|
938 } |
|
939 |
|
940 /** |
|
941 Converts the 8 bit chunk to unicode.When this is called iRfileReadBuf8 will have the 8-bit |
|
942 data that needs to be converted to unicode.8 bit data that is not converted is copied to |
|
943 iRemainingUnConvertedData, which is used in conversion when this is called again. |
|
944 @param None. |
|
945 @return TInt Number of bytes in Current Chunk. |
|
946 */ |
|
947 TInt CMsvPlainBodyText::ConvertChunkToUnicodeForRestoreL() |
|
948 { |
|
949 TBufC16<KMaxDecodeUnicodeLength> outBuf; |
|
950 TPtr16 outPtr = outBuf.Des(); |
|
951 TInt charsetState = CCnvCharacterSetConverter::KStateDefault; |
|
952 |
|
953 TInt numOfBytesInCurrentChunk = 0; |
|
954 TInt bytesUnconverted = 0; |
|
955 // Check if we are processing the last chunk. |
|
956 if(iRfileReadBuf8.Length() == 0) |
|
957 { |
|
958 iIsLastChunk = ETrue; |
|
959 } |
|
960 // Check if there are data that are yet to be converted. |
|
961 if(iRemainingUnConvertedData) |
|
962 { |
|
963 if(iIsLastChunk) |
|
964 { |
|
965 TPtrC8 remPtr(*iRemainingUnConvertedData); |
|
966 // If it is the lastchunk then convert the data, need not insert to input buffer. |
|
967 if(iIsLastChunk) |
|
968 { |
|
969 while(remPtr.Length() > 0) |
|
970 { |
|
971 bytesUnconverted = iConverter->ConvertToUnicode(outPtr, remPtr, charsetState); |
|
972 User::LeaveIfError(bytesUnconverted); |
|
973 iChunk16->Append(outPtr); |
|
974 remPtr.Set(remPtr.Right(bytesUnconverted)); |
|
975 } |
|
976 } |
|
977 } |
|
978 else // If there are data that are yet to be converted insert it at the front of the input buffer. |
|
979 { |
|
980 iRfileReadBuf8.ReAllocL(iRfileReadBuf8.Length() + iRemainingUnConvertedData->Length()); |
|
981 iRfileReadBuf8.Insert(0, *iRemainingUnConvertedData); |
|
982 } |
|
983 delete iRemainingUnConvertedData; |
|
984 iRemainingUnConvertedData = NULL; |
|
985 } |
|
986 |
|
987 TPtrC8 remainingUnconvertedData(iRfileReadBuf8); |
|
988 // This loop will convert the data to unicode till iChunk16 is filled with the converted data. |
|
989 while(remainingUnconvertedData.Length() >= KMaxDecodeUnicodeLength || (iIsLastChunk && remainingUnconvertedData.Length() > 0)) |
|
990 { |
|
991 bytesUnconverted = iConverter->ConvertToUnicode(outPtr, remainingUnconvertedData, charsetState); |
|
992 User::LeaveIfError(bytesUnconverted); |
|
993 TInt bytesConverted = remainingUnconvertedData.Length()-bytesUnconverted; |
|
994 |
|
995 if (iChunk16->Length() + outPtr.Length() <= iChunk16->MaxLength()) |
|
996 { |
|
997 iChunk16->Append(outPtr); |
|
998 numOfBytesInCurrentChunk += bytesConverted; |
|
999 } |
|
1000 else |
|
1001 { |
|
1002 // Copy remaining unconverted data to iRemainingConvertedData, |
|
1003 // if outBuf.Length() is greater than the space remains in aChunk |
|
1004 TInt availableSpaceOnChunk = iChunk16->MaxLength() - iChunk16->Length(); |
|
1005 iChunk16->Append(outPtr.Left(availableSpaceOnChunk)); |
|
1006 |
|
1007 numOfBytesInCurrentChunk += bytesConverted - iRemainingConvertedData.Length(); |
|
1008 iRemainingConvertedData.Append(outPtr.Mid(availableSpaceOnChunk)); |
|
1009 remainingUnconvertedData.Set(remainingUnconvertedData.Right(bytesUnconverted)); |
|
1010 break; |
|
1011 } |
|
1012 remainingUnconvertedData.Set(remainingUnconvertedData.Right(bytesUnconverted)); |
|
1013 } |
|
1014 |
|
1015 // Copy remaining unconverted data to iRemainingUnConvertedData |
|
1016 if(remainingUnconvertedData.Length()) |
|
1017 { |
|
1018 __ASSERT_DEBUG(iRemainingUnConvertedData == NULL, PanicServer(EMsvBufferNotEmpty)); |
|
1019 iRemainingUnConvertedData = remainingUnconvertedData.AllocL(); |
|
1020 } |
|
1021 iRfileReadBuf8.Close(); |
|
1022 return numOfBytesInCurrentChunk; |
|
1023 } |
|
1024 |
|
1025 /** |
|
1026 Creates the character converter and specifies the character set to convert to or from. |
|
1027 Leaves if the specified or default character set is not available. |
|
1028 @param None. |
|
1029 @return void. |
|
1030 */ |
|
1031 void CMsvPlainBodyText::PrepareToConvertL() |
|
1032 { |
|
1033 if(!iConverter) |
|
1034 { |
|
1035 iConverter = CCnvCharacterSetConverter::NewL(); |
|
1036 if (iCharsetId != 0) |
|
1037 { |
|
1038 iAvailable = iConverter->PrepareToConvertToOrFromL(iCharsetId, iFSession); |
|
1039 } |
|
1040 if (iAvailable == CCnvCharacterSetConverter::ENotAvailable) |
|
1041 { |
|
1042 iAvailable = iConverter->PrepareToConvertToOrFromL(iDefaultCharsetId, iFSession); |
|
1043 } |
|
1044 } |
|
1045 } |
|
1046 |
|
1047 /** |
|
1048 Set iCharsetId to aCharset if body text of the message was downloaded as 8 bit. |
|
1049 This can be used to override the charset with which a message was downloaded, when |
|
1050 the body text is opened for reading. |
|
1051 @param aCharset The new charset with which it needs to be converted. |
|
1052 @return void. |
|
1053 */ |
|
1054 EXPORT_C void CMsvPlainBodyText::SetCharacterSetL(const TUint aCharset) |
|
1055 { |
|
1056 if(iStore.IsPresentL(KMsvPlainBodyText8)) |
|
1057 { |
|
1058 iCharsetId = aCharset; |
|
1059 } |
|
1060 } |
|
1061 |
|
1062 /** |
|
1063 Returns the charset for the plain text part |
|
1064 @param None. |
|
1065 @return TUint |
|
1066 */ |
|
1067 EXPORT_C TUint CMsvPlainBodyText::CharacterSet() |
|
1068 { |
|
1069 return iCharsetId ; |
|
1070 } |
|
1071 |
|
1072 /** |
|
1073 Returns the default charset for the plain text part |
|
1074 @param None. |
|
1075 @return TUint |
|
1076 */ |
|
1077 EXPORT_C TUint CMsvPlainBodyText::DefaultCharacterSet() |
|
1078 { |
|
1079 return iDefaultCharsetId; |
|
1080 } |
|
1081 |
|
1082 /** |
|
1083 Commit the file and the store after it is written and and also closes the file. |
|
1084 @param |
|
1085 @return void |
|
1086 */ |
|
1087 EXPORT_C void CMsvPlainBodyText::CommitL() |
|
1088 { |
|
1089 iFile.Close(); |
|
1090 RMsvWriteStream out; |
|
1091 if(iIs8Bit) |
|
1092 { |
|
1093 out.AssignLC(iStore, KMsvPlainBodyText8); |
|
1094 out.WriteUint32L(iCharsetId); |
|
1095 out.WriteUint32L(iDefaultCharsetId); |
|
1096 } |
|
1097 else |
|
1098 { |
|
1099 out.AssignLC(iStore, KMsvPlainBodyText16); |
|
1100 } |
|
1101 iIsCommitted = ETrue; |
|
1102 out.WriteUint32L(iIsCommitted); |
|
1103 |
|
1104 TBuf<KFileNameFixedWidth> fileName; |
|
1105 fileName.NumFixedWidth(iMessageId, EHex, KFileNameFixedWidth); |
|
1106 out << (TDes&)fileName; |
|
1107 |
|
1108 out.CommitL(); |
|
1109 out.Close(); |
|
1110 iStore.CommitL(); |
|
1111 iMsvStoreManager.ReplacePlainTextFileL(iMessageId); |
|
1112 CleanupStack::PopAndDestroy(&out); |
|
1113 } |
|
1114 |
|
1115 /** |
|
1116 Revert/Delete the file if it is not committed. |
|
1117 @param None. |
|
1118 @return void. |
|
1119 */ |
|
1120 void CMsvPlainBodyText::RevertL() |
|
1121 { |
|
1122 iFile.Close(); |
|
1123 if(!iIsCommitted) |
|
1124 { |
|
1125 iMsvStoreManager.DeletePlainTextFileL(iMessageId); |
|
1126 } |
|
1127 } |
|
1128 |
|
1129 /** |
|
1130 Cancel the file read operation and set the filepointer to the current position of the file |
|
1131 so that next call to NextChunkL() will attempt to read the same chunk that was cancelled |
|
1132 @param None. |
|
1133 @return void. |
|
1134 */ |
|
1135 void CMsvPlainBodyText::DoCancel() |
|
1136 { |
|
1137 if(iMsvFileStatus == EMsvFileReading) |
|
1138 { |
|
1139 iFile.ReadCancel(); |
|
1140 iFile.Seek(ESeekStart, iCurrentFilePos); |
|
1141 } |
|
1142 CMsgActive::DoCancel(); |
|
1143 } |