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1 // console.cpp |
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2 // |
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3 // Copyright (c) 2006 - 2010 Accenture. All rights reserved. |
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4 // This component and the accompanying materials are made available |
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5 // under the terms of the "Eclipse Public License v1.0" |
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6 // which accompanies this distribution, and is available |
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7 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 // |
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9 // Initial Contributors: |
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10 // Accenture - Initial contribution |
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11 // |
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12 |
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13 #include <e32cons.h> |
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14 #include <fshell/ioutils.h> |
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15 #include "console.h" |
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16 |
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17 |
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18 // |
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19 // CConsoleReader. |
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20 // |
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21 |
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22 CConsoleReader* CConsoleReader::NewL(RIoConsoleReadHandle& aStdin, MConsoleObserver& aObserver) |
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23 { |
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24 CConsoleReader* self = new(ELeave) CConsoleReader(aStdin, aObserver); |
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25 self->Queue(); |
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26 return self; |
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27 } |
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28 |
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29 CConsoleReader::~CConsoleReader() |
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30 { |
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31 Cancel(); |
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32 } |
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33 |
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34 CConsoleReader::CConsoleReader(RIoConsoleReadHandle& aStdin, MConsoleObserver& aObserver) |
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35 : CActive(CActive::EPriorityStandard), iStdin(aStdin), iObserver(aObserver) |
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36 { |
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37 CActiveScheduler::Add(this); |
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38 } |
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39 |
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40 void CConsoleReader::Queue() |
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41 { |
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42 TInt result = iStdin.AttachedToConsole(); |
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43 if (result > 0) |
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44 { |
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45 iRawRead = ETrue; |
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46 iStdin.Read(iRawReadBuf, iStatus); |
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47 } |
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48 else if (result == 0) |
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49 { |
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50 iRawRead = EFalse; |
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51 iStdin.WaitForKey(iStatus); |
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52 } |
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53 else |
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54 { |
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55 // This seems to happen if the console failed to construct |
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56 // [I've seen a E32USER-CBase 45 panic as a result of this call so possibly it's not always the right thing to do (I added this in the first place). -TomS] |
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57 iObserver.CoHandleError(result); |
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58 return; |
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59 } |
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60 SetActive(); |
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61 } |
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62 |
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63 void CConsoleReader::RunL() |
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64 { |
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65 TInt err = iStatus.Int(); |
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66 if (err) |
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67 { |
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68 iObserver.CoHandleError(err); |
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69 } |
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70 else |
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71 { |
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72 TUint keyCode = iRawRead ? iRawReadBuf[0] : iStdin.KeyCode(); |
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73 TUint modifiers = iRawRead ? 0 : iStdin.KeyModifiers(); |
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74 iObserver.CoHandleKey(keyCode, modifiers); |
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75 } |
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76 Queue(); |
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77 } |
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78 |
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79 void CConsoleReader::DoCancel() |
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80 { |
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81 if (iRawRead) |
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82 { |
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83 iStdin.ReadCancel(); |
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84 } |
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85 else |
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86 { |
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87 iStdin.WaitForKeyCancel(); |
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88 } |
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89 } |