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1 //mmrcclient.h |
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2 |
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3 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 // All rights reserved. |
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5 // This component and the accompanying materials are made available |
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6 // under the terms of "Eclipse Public License v1.0" |
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7 // which accompanies this distribution, and is available |
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8 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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9 // |
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10 // Initial Contributors: |
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11 // Nokia Corporation - initial contribution. |
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12 // |
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13 // Contributors: |
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14 // |
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15 // Description: |
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16 // |
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17 |
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18 |
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19 |
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20 /** |
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21 @file |
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22 @internalTechnology |
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23 */ |
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24 |
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25 #ifndef RMMRCCLIENT_H |
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26 #define RMMRCCLIENT_H |
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27 |
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28 // INCLUDES |
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29 #include <e32std.h> |
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30 #include <e32base.h> |
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31 #include <a3f/a3fbase.h> |
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32 #include "maudiostreamadaptationobserver.h" |
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33 |
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34 class MAudioContext; |
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35 class MLogicalChain; |
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36 class MMultimediaResourceControlObserver; |
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37 class CMMRCServer; |
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38 class CMMRCServerSession; |
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39 class CMMRCClientImplementation; |
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40 class CAudioContext; |
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41 |
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42 // CLASS DECLARATION |
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43 // |
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44 // This class opens connection and provides functions to MMRC server. |
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45 // |
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46 // @lib mmrcclient.lib |
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47 // |
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48 class RMMRCClient |
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49 { |
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50 public: |
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51 IMPORT_C RMMRCClient(); |
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52 |
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53 IMPORT_C virtual ~RMMRCClient(); |
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54 |
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55 // |
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56 // Open connection to server. |
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57 // |
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58 // @param aConnection Interface to server, must not be connected. |
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59 // @param aCallback Callback interface. |
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60 // @return an error code. KErrNone if successful, otherwise one of the system wide error codes. |
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61 // |
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62 IMPORT_C TInt Open(MMultimediaResourceControlObserver& aCallback); |
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63 |
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64 // |
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65 // Zero is invalid Context id and indicates error. |
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66 // @param aProcessId Process Id. |
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67 // @return TUint32 Context Id. |
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68 // |
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69 IMPORT_C TUint64 LogOn(TProcessId aProcessId); |
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70 |
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71 // |
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72 // Asynchronous return to ReceiveResourceResponse. |
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73 // |
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74 // @param aMessage Message to be sent. |
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75 // @return an error code. KErrNone if successful, otherwise one of the system wide error codes. |
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76 // |
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77 IMPORT_C TInt SendResourceRequest(MLogicalChain* aCurrent, MLogicalChain* aDesired, CAudioContext* aContext); |
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78 |
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79 // |
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80 // Synchronous. |
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81 // |
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82 // @return an error code. KErrNone if successful, otherwise one of the system wide error codes. |
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83 // |
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84 IMPORT_C TInt SendResourceConfirmation(); |
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85 |
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86 // |
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87 // Synchronous. |
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88 // |
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89 // @return an error code. KErrNone if successful, otherwise one of the system wide error codes. |
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90 // |
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91 IMPORT_C TInt SendResourceUpdateResult(); |
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92 |
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93 // |
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94 // Synchronous. |
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95 // |
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96 // @return an error code. KErrNone if successful, otherwise one of the system wide error codes. |
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97 // |
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98 IMPORT_C TInt SendResourceErrorNotification(); |
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99 |
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100 // |
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101 // Close connection to server. |
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102 // |
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103 IMPORT_C void Close(); |
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104 // |
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105 // Register a client for notification. |
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106 // |
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107 IMPORT_C TInt RegisterAsClient(TUid aEventType, const TDesC8& aNotificationRegistrationData); |
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108 |
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109 // |
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110 // Cancel the register of a client for notification. |
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111 // |
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112 IMPORT_C TInt CancelRegisterAsClient(TUid aEventType); |
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113 // |
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114 // |
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115 // |
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116 IMPORT_C TInt WillResumePlay(); |
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117 |
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118 IMPORT_C void ResetMessages(); |
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119 |
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120 private: |
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121 CMMRCClientImplementation* iImplementation; |
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122 }; |
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123 |
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124 #endif // RMMRCCLIENT_H |