1 mmfcontroller.h |
1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 |
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17 #ifndef __MMFCONTROLLER_H__ |
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18 #define __MMFCONTROLLER_H__ |
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19 |
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20 #include <mmf/server/mmfdatasource.h> |
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21 #include <mmf/server/mmfdatasink.h> |
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22 #include <mmf/common/mmfcontrollerframework.h> |
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23 #include <mmf/common/mmfcontrollerpluginresolver.h> |
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24 #include <mmfplugininterfaceuids.hrh> |
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25 |
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26 #include <caf/caf.h> |
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27 |
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28 |
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29 /** |
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30 @publishedAll |
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31 @released |
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32 |
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33 Error category denoting a general controller error. |
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34 |
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35 @see TMMFEvent |
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36 @since 7.0s |
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37 */ |
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38 const TUid KMMFErrorCategoryControllerGeneralError = {0x101F76D3}; |
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39 |
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40 /** |
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41 @publishedAll |
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42 @released |
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43 |
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44 Error category denoting playback complete i.e. due to EOF or error condition |
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45 |
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46 @see TMMFEvent |
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47 @since 7.0s |
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48 */ |
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49 const TUid KMMFEventCategoryPlaybackComplete = {0x101f7ea0}; |
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50 |
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51 /** |
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52 @internalComponent |
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53 */ |
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54 const TUid KUidInterfaceMMFDataSinkHolder = {0x101F76D4}; |
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55 /** |
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56 @internalComponent |
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57 */ |
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58 const TUid KUidInterfaceMMFDataSourceHolder = {0x101F76D5}; |
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59 /** |
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60 @internalComponent |
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61 */ |
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62 const TUid KUidMMFControllerExtendedDataHolder = {0x102834AC}; |
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63 |
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64 /** |
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65 @internalComponent |
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66 |
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67 Create a const TUid with the same values as the controller |
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68 ECOM plugin interface UID |
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69 */ |
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70 const TUid KUidInterfaceMMFController = {KMmfUidPluginInterfaceController}; |
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71 |
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72 /** |
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73 @internalComponent |
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74 |
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75 IPC messages for interface KUidInterfaceMMFController in the controller framework. |
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76 */ |
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77 enum TMMFControllerMessages |
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78 { |
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79 EMMFControllerAddDataSource, |
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80 EMMFControllerAddDataSink, |
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81 EMMFControllerRemoveDataSource, |
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82 EMMFControllerRemoveDataSink, |
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83 EMMFControllerReset, |
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84 EMMFControllerPrime, |
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85 EMMFControllerPlay, |
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86 EMMFControllerPause, |
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87 EMMFControllerStop, |
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88 EMMFControllerGetPosition, |
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89 EMMFControllerSetPosition, |
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90 EMMFControllerGetDuration, |
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91 EMMFControllerGetNumberOfMetaDataEntries, |
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92 EMMFControllerGetSizeOfMetaDataEntry,//use internally |
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93 EMMFControllerGetMetaDataEntry, |
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94 EMMFControllerSetPrioritySettings, |
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95 EMMFControllerCancelAddDataSource, |
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96 EMMFControllerCancelAddDataSink, |
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97 EMMFControllerAddFileHandleDataSource, |
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98 EMMFControllerAddFileHandleDataSink, |
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99 EMMFControllerSourceSinkInitDataPreload, |
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100 EMMFControllerAddFileHandleDataSourceWithInitData, |
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101 EMMFControllerAddFileHandleDataSinkWithInitData |
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102 }; |
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103 |
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104 |
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105 |
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106 /** |
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107 @publishedAll |
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108 @released |
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109 |
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110 Client representation of a controller plugin for the Multimedia Framework. |
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111 |
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112 This class allows a client to load a controller plugin into a new thread and access the |
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113 functionality provided by that plugin. |
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114 |
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115 @since 7.0s |
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116 */ |
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117 class RMMFController |
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118 { |
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119 public: |
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120 |
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121 IMPORT_C RMMFController(); |
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122 |
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123 IMPORT_C TInt Open(TUid aControllerUid, const TMMFPrioritySettings& aPrioritySettings); |
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124 |
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125 IMPORT_C TInt Open(const CMMFControllerImplementationInformation& aControllerInfo, const TMMFPrioritySettings& aPrioritySettings); |
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126 |
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127 IMPORT_C TInt Open(TUid aControllerUid, const TMMFPrioritySettings& aPrioritySettings, TBool aUseSharedHeap ); |
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128 |
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129 IMPORT_C TInt Open(const CMMFControllerImplementationInformation& aControllerInfo, const TMMFPrioritySettings& aPrioritySettings, TBool aUseSharedHeap ); |
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130 |
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131 IMPORT_C TInt OpenInSecureDRMProcess(TUid aControllerUid, const TMMFPrioritySettings& aPrioritySettings); |
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132 |
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133 IMPORT_C TInt OpenInSecureDRMProcess(const CMMFControllerImplementationInformation& aControllerInfo, const TMMFPrioritySettings& aPrioritySettings); |
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134 |
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135 IMPORT_C TInt OpenInSecureDRMProcess(TUid aControllerUid, const TMMFPrioritySettings& aPrioritySettings, TBool aUseSharedHeap ); |
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136 |
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137 IMPORT_C TInt OpenInSecureDRMProcess(const CMMFControllerImplementationInformation& aControllerInfo, const TMMFPrioritySettings& aPrioritySettings, TBool aUseSharedHeap ); |
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138 |
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139 IMPORT_C void Close(); |
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140 |
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141 IMPORT_C TInt SetPrioritySettings(const TMMFPrioritySettings& aPrioritySettings) const; |
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142 |
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143 IMPORT_C TInt AddDataSource(TUid aSourceUid, const TDesC8& aSourceInitData); |
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144 |
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145 IMPORT_C TInt AddDataSink(TUid aSinkUid, const TDesC8& aSinkInitData); |
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146 |
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147 IMPORT_C TInt AddDataSource(TUid aSourceUid, const TDesC8& aSourceInitData, TMMFMessageDestination& aHandleInfo); |
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148 |
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149 IMPORT_C TInt AddDataSink(TUid aSinkUid, const TDesC8& aSinkInitData, TMMFMessageDestination& aHandleInfo); |
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150 |
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151 IMPORT_C void AddDataSource(const TMMFUidPckg& aSourceUid, const TDesC8& aSourceInitData, TMMFMessageDestinationPckg& aHandleInfoPckg, TRequestStatus& aStatus); |
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152 IMPORT_C void AddFileHandleDataSource(const RFile& aFile, const TDesC8& aSourceInitData, TMMFMessageDestinationPckg& aHandleInfoPckg, TRequestStatus& aStatus); |
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153 IMPORT_C void AddFileHandleDataSource(const RFile& aFile, TMMFMessageDestinationPckg& aHandleInfoPckg, TRequestStatus& aStatus); |
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154 |
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155 IMPORT_C void CancelAddDataSource(); |
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156 |
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157 IMPORT_C void AddDataSink(const TMMFUidPckg& aSinkUid, const TDesC8& aSinkInitData, TMMFMessageDestinationPckg& aHandleInfoPckg, TRequestStatus& aStatus); |
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158 IMPORT_C void AddFileHandleDataSink(const RFile& aFile, const TDesC8& aSinkInitData, TMMFMessageDestinationPckg& aHandleInfoPckg, TRequestStatus& aStatus); |
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159 IMPORT_C void AddFileHandleDataSink(const RFile& aFile, TMMFMessageDestinationPckg& aHandleInfoPckg, TRequestStatus& aStatus); |
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160 |
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161 IMPORT_C void CancelAddDataSink(); |
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162 |
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163 IMPORT_C TInt RemoveDataSource(const TMMFMessageDestination& aSourceHandleInfo); |
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164 |
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165 IMPORT_C TInt RemoveDataSink(const TMMFMessageDestination& aSinkHandleInfo); |
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166 |
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167 IMPORT_C TInt Reset(); |
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168 |
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169 IMPORT_C TInt Prime(); |
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170 |
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171 IMPORT_C TInt Play(); |
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172 |
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173 IMPORT_C TInt Pause(); |
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174 |
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175 IMPORT_C TInt Stop(); |
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176 |
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177 IMPORT_C TInt GetPosition(TTimeIntervalMicroSeconds& aPosition) const; |
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178 |
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179 IMPORT_C TInt SetPosition(const TTimeIntervalMicroSeconds& aPosition) const; |
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180 |
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181 IMPORT_C TInt GetDuration(TTimeIntervalMicroSeconds& aDuration) const; |
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182 |
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183 IMPORT_C TInt GetNumberOfMetaDataEntries(TInt& aNumberOfEntries) const; |
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184 |
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185 IMPORT_C CMMFMetaDataEntry* GetMetaDataEntryL(TInt aIndex) const; |
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186 |
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187 IMPORT_C TInt CustomCommandSync(const TMMFMessageDestinationPckg& aDestination, TInt aFunction, const TDesC8& aDataTo1, const TDesC8& aDataTo2, TDes8& aDataFrom); |
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188 |
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189 IMPORT_C TInt CustomCommandSync(const TMMFMessageDestinationPckg& aDestination, TInt aFunction, const TDesC8& aDataTo1, const TDesC8& aDataTo2); |
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190 |
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191 IMPORT_C void CustomCommandAsync(const TMMFMessageDestinationPckg& aDestination, TInt aFunction, const TDesC8& aDataTo1, const TDesC8& aDataTo2, TDes8& aDataFrom, TRequestStatus& aStatus); |
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192 |
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193 IMPORT_C void CustomCommandAsync(const TMMFMessageDestinationPckg& aDestination, TInt aFunction, const TDesC8& aDataTo1, const TDesC8& aDataTo2, TRequestStatus& aStatus); |
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194 |
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195 IMPORT_C void ReceiveEvents(TMMFEventPckg& aEventPckg, TRequestStatus& aStatus); |
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196 |
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197 IMPORT_C TInt CancelReceiveEvents(); |
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198 |
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199 IMPORT_C TInt SetThreadPriority(const TThreadPriority& aPriority) const; |
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200 |
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201 private: |
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202 /** |
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203 The controller proxy. Used to pass messages to the controller thread. |
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204 */ |
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205 RMMFControllerProxy iControllerProxy; |
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206 |
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207 /** |
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208 Used to hold the destination information for messages for the standard controller plugin interface. |
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209 */ |
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210 TMMFMessageDestinationPckg iDestinationPckg; |
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211 }; |
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212 |
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213 |
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214 /** |
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215 @publishedAll |
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216 @released |
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217 |
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218 Defines an object to which a client may have a direct handle. |
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219 |
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220 This class provides a way of identifying objects within the controller framework, and a means |
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221 of passing commands to those objects. |
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222 |
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223 @since 7.0s |
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224 */ |
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225 class CMMFObject : public CBase |
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226 { |
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227 friend class CMMFObjectContainer;//to set the handle |
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228 public: |
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229 IMPORT_C ~CMMFObject(); |
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230 |
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231 IMPORT_C CMMFObject(TUid aInterfaceId); |
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232 |
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233 IMPORT_C const TMMFMessageDestination& Handle(); |
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234 |
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235 IMPORT_C TBool operator==(const CMMFObject& aOther); |
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236 |
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237 /** |
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238 Passes a message to the object to handle. |
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239 |
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240 This is a pure virtual method to be implemented by concrete classes derived from this class. |
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241 |
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242 The message passed in MUST be completed by the object; however, it can be copied to be |
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243 completed at a later time, should some other asynchronous action need to occur first. |
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244 |
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245 @param aMessage |
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246 The message to be handled. This MUST be completed by the object. |
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247 |
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248 @since 7.0s |
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249 */ |
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250 virtual void HandleRequest(TMMFMessage& aMessage) = 0; |
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251 private: |
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252 void SetHandle(const TMMFMessageDestination& aNewHandle); |
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253 private: |
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254 TMMFMessageDestination iHandle; |
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255 }; |
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256 |
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257 |
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258 /** |
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259 @publishedAll |
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260 @released |
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261 |
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262 Container class to hold the CMMFObject-derived objects in the controller framework. |
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263 |
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264 @since 7.0s |
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265 */ |
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266 class CMMFObjectContainer : public CBase |
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267 { |
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268 public: |
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269 |
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270 IMPORT_C CMMFObjectContainer(); |
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271 |
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272 IMPORT_C ~CMMFObjectContainer(); |
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273 |
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274 IMPORT_C TInt AddMMFObject(CMMFObject& aObject); |
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275 |
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276 IMPORT_C void RemoveAndDestroyMMFObject(CMMFObject& aObject); |
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277 |
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278 IMPORT_C TInt FindMMFObject(const TMMFMessageDestination& aObjectHandle, CMMFObject*& aObjectFound); |
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279 |
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280 IMPORT_C void DeleteAllObjects(); |
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281 |
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282 const RPointerArray<CMMFObject>& MMFObjects(); |
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283 |
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284 private: |
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285 /** |
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286 Internal method to find an object in the array. |
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287 */ |
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288 TInt FindMMFObject(const CMMFObject& aObject, TInt& aPositionInArray); |
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289 |
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290 /** |
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291 Internal method used to generate the object handle for a newly added object. |
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292 */ |
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293 TInt GenerateObjectHandle(); |
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294 private: |
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295 /** |
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296 The array of objects. |
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297 */ |
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298 RPointerArray<CMMFObject> iObjects; |
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299 |
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300 /** |
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301 The next available object handle. |
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302 */ |
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303 TInt iNextObjectHandle; |
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304 }; |
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305 |
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306 |
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307 /** |
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308 @publishedAll |
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309 @released |
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310 |
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311 CMMFObject-derived class to wrap a Data Source. |
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312 |
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313 Allows a handle to be attributed to a data source, so it can be removed from the controller and |
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314 the client can send messages directly to it. |
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315 |
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316 @since 7.0s |
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317 */ |
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318 class CMMFDataSourceHolder : public CMMFObject |
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319 { |
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320 public: |
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321 |
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322 IMPORT_C CMMFDataSourceHolder(MDataSource& aDataSource); |
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323 |
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324 IMPORT_C ~CMMFDataSourceHolder(); |
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325 |
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326 IMPORT_C MDataSource& DataSource(); |
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327 |
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328 //from CMMFObject |
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329 IMPORT_C void HandleRequest(TMMFMessage& aMessage); |
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330 private: |
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331 /** |
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332 Pointer to the data source owned by this object. |
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333 */ |
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334 MDataSource* iDataSource; |
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335 }; |
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336 |
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337 /** |
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338 @publishedAll |
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339 @released |
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340 |
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341 CMMFObject-derived class to wrap a Data Sink. |
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342 |
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343 Allows a handle to be attributed to a data sink, so it can be removed from the controller and |
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344 the client can send messages directly to it. |
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345 |
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346 @since 7.0s |
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347 */ |
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348 class CMMFDataSinkHolder : public CMMFObject |
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349 { |
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350 public: |
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351 IMPORT_C CMMFDataSinkHolder(MDataSink& aDataSink); |
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352 |
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353 IMPORT_C ~CMMFDataSinkHolder(); |
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354 |
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355 IMPORT_C MDataSink& DataSink(); |
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356 |
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357 //from CMMFObject |
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358 IMPORT_C void HandleRequest(TMMFMessage& aMessage); |
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359 |
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360 private: |
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361 /** |
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362 Pointer to the data sink owned by this object. |
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363 */ |
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364 MDataSink* iDataSink; |
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365 }; |
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366 |
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367 |
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368 /** |
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369 @publishedAll |
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370 @released |
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371 |
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372 Base class for client-side custom command classes. |
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373 |
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374 In order facilitate the use of the more common custom commands, it is desirable to write |
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375 a concrete API class for the client to use. This API class can then be use to wrap all the code |
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376 involved to formulate the custom command messages. |
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377 |
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378 @since 7.0s |
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379 */ |
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380 class RMMFCustomCommandsBase |
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381 { |
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382 public: |
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383 |
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384 IMPORT_C RMMFCustomCommandsBase(RMMFController& aController, TUid aInterfaceId); |
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385 protected: |
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386 /** |
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387 The controller. |
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388 |
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389 Derived classes should use iController.CustomCommandSync() and |
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390 iController.CustomCommandAsync() to send the custom commands to the controller |
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391 plugin. |
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392 */ |
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393 RMMFController& iController; |
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394 |
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395 /** |
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396 The destination package. |
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397 |
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398 Derived classes must pass this into iController.CustomCommandSync() and |
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399 iController.CustomCommandAsync() as the destination argument. |
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400 */ |
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401 TMMFMessageDestinationPckg iDestinationPckg; |
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402 }; |
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403 |
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404 /** |
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405 @publishedAll |
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406 @released |
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407 |
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408 Base class to define the interface of a custom command parser. |
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409 |
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410 In order to facilitate the support of common custom commands by controller plugins, a |
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411 custom command parser object can be used. A set of custom command parsers are created |
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412 by the controller plugin (one for each interface supported), and added to the custom command |
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413 parser manager in the controller framework. The controller plugin must also derive from a set of |
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414 concrete interfaces (provided in the form of mixin classes). Then, a custom command supported by |
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415 one of the custom command parsers will appear to the controller as a concrete API call, rather than |
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416 a call to its own custom command API. |
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417 |
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418 @since 7.0s |
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419 */ |
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420 class CMMFCustomCommandParserBase : public CBase |
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421 { |
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422 public: |
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423 |
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424 /** |
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425 Pure virtual method to be implemented by derived classes. |
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426 |
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427 Derived classes must implement the code to decode the message from the client. |
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428 |
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429 @param aMessage |
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430 The message to be serviced. This message must be completed by the derived class. |
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431 |
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432 @since 7.0s |
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433 */ |
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434 virtual void HandleRequest(TMMFMessage& aMessage) = 0; |
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435 |
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436 /** |
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437 Returns the UID of the custom command interface provided by this parser. |
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438 |
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439 @return The interface UID. |
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440 |
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441 @since 7.0s |
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442 */ |
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443 IMPORT_C TUid InterfaceId(); |
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444 |
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445 /** |
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446 Destructor. |
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447 |
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448 @since 7.0s |
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449 */ |
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450 IMPORT_C ~CMMFCustomCommandParserBase(); |
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451 protected: |
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452 |
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453 /** |
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454 Constructor. |
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455 |
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456 @param aInterfaceId |
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457 The uid of the custom command interface provided by this parser. |
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458 This must be the same as the interface id of the corresponding client |
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459 API class. See RMMFCustomCommandsBase. |
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460 |
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461 @since 7.0s |
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462 */ |
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463 IMPORT_C CMMFCustomCommandParserBase(TUid aInterfaceId); |
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464 |
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465 private: |
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466 |
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467 /** |
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468 The uid of the custom command interface provided by this parser. |
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469 */ |
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470 TUid iInterfaceId; |
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471 }; |
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472 |
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473 /** |
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474 @publishedPartner |
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475 @released |
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476 |
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477 Class to manage custom command parsers. |
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478 |
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479 An object of this type is owned by the controller framework to contain all the custom command |
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480 parsers for the controller plugin. |
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481 |
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482 @since 7.0s |
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483 */ |
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484 class CMMFCustomCommandParserManager : public CBase |
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485 { |
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486 public: |
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487 /** |
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488 Factory constructor. |
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489 |
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490 @return A pointer to the newly created object. |
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491 |
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492 @since 7.0s |
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493 */ |
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494 IMPORT_C static CMMFCustomCommandParserManager* NewL(); |
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495 |
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496 /** |
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497 Destructor. |
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498 |
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499 Deletes all custom command parsers added to the manager. |
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500 |
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501 @since 7.0s |
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502 */ |
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503 IMPORT_C ~CMMFCustomCommandParserManager(); |
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504 |
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505 /** |
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506 Attempts to find a custom command parser capable of handling the message. |
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507 |
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508 @param aMessage |
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509 The message to be handled. |
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510 |
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511 @return A boolean indicating in the message has been handled. ETrue if the message has been handled, EFalse |
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512 if it has not. |
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513 |
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514 @since 7.0s |
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515 */ |
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516 IMPORT_C TBool HandleRequest(TMMFMessage& aMessage); |
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517 |
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518 /** |
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519 Adds a custom command parser to the manager. The manager takes ownership of the parser. |
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520 |
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521 Note: |
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522 This method will leave if it fails to add the parser. If it does leave, ownership |
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523 of the parser will remain with the caller. |
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524 |
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525 @param aParser |
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526 A reference to the parser to be added to the manager. |
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527 |
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528 @since 7.0s |
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529 */ |
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530 IMPORT_C void AddCustomCommandParserL(CMMFCustomCommandParserBase& aParser); |
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531 private: |
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532 CMMFCustomCommandParserManager(); |
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533 private: |
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534 /** |
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535 The array of custom command parsers. |
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536 */ |
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537 RPointerArray<CMMFCustomCommandParserBase> iParsers; |
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538 }; |
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539 |
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540 |
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541 class CMMFControllerExtendedData; |
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542 /** |
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543 @publishedAll |
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544 @released |
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545 |
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546 Base class for controller plugins. |
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547 |
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548 A controller plugin for the multimedia framework must derive from this class and implement |
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549 all the pure virtual functions. |
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550 |
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551 Controller plugins control the flow of multimedia data from one or more sources to one or |
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552 more sinks. For example, an audio controller plugin might take data from a file source and |
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553 output it to a speaker sink, or take data from a microphone source and save it to a file |
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554 sink. A controller plugin typically supports one or more multimedia formats, for example |
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555 WAV or MPEG4. |
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556 |
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557 @since 7.0s |
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558 */ |
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559 class CMMFController : public CBase |
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560 { |
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561 public: |
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562 |
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563 /** |
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564 Allocates and constructs a new controller plugin. |
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565 |
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566 Uses ECOM to instantiate a new controller plugin. Can leave with any of the system-wide error codes. |
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567 |
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568 @param aControllerUid |
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569 The unique ID of the controller to be instantiated from ECOM. |
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570 @param aEventHandler |
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571 A reference to an event handling object that can be used by the |
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572 controller to send events back to the client. |
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573 @param aClientTid |
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574 The thread Id of the client thread |
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575 |
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576 @return A pointer to the new controller plugin. |
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577 |
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578 @since 7.0s |
|
579 */ |
|
580 static CMMFController* NewL(TUid aControllerUid, MAsyncEventHandler& aEventHandler, TThreadId aClientTid); |
|
581 |
|
582 /** |
|
583 Handles a message from the client. |
|
584 |
|
585 Decodes the message and calls one of the private DoXxx methods to unpackaged the parameters. |
|
586 |
|
587 @param aMessage |
|
588 The message to be handled. |
|
589 |
|
590 @since 7.0s |
|
591 */ |
|
592 IMPORT_C virtual void HandleRequestL(TMMFMessage& aMessage); |
|
593 |
|
594 /** |
|
595 Default destructor. |
|
596 */ |
|
597 IMPORT_C virtual ~CMMFController(); |
|
598 protected: |
|
599 |
|
600 /** |
|
601 Constructor. |
|
602 */ |
|
603 CMMFController() {}; |
|
604 |
|
605 // virtual functions to be implemented by controller plugin |
|
606 |
|
607 /** |
|
608 Add a data source to the controller plugin. |
|
609 |
|
610 NOTE: The data source is owned by the controller framework, NOT by the controller plugin. |
|
611 Under no circumstances should the controller plugin delete the data source. |
|
612 |
|
613 @param aDataSource |
|
614 A reference to the data source to be added. The controller plugin |
|
615 may call aDataSource.DataSourceType() to find out |
|
616 exactly what type of source it is. |
|
617 |
|
618 @leave KErrNotSupported |
|
619 If the controller plugin does not support the data source, it should leave with this. |
|
620 |
|
621 @since 7.0s |
|
622 */ |
|
623 virtual void AddDataSourceL(MDataSource& aDataSource) = 0; |
|
624 |
|
625 /** |
|
626 Adds a data sink to the controller plugin. |
|
627 |
|
628 NOTE: The data sink is owned by the controller framework, NOT by the controller plugin. |
|
629 Under no circumstances should the controller plugin delete the data sink. |
|
630 |
|
631 @param aDataSink |
|
632 A reference to the data sink to be added. The controller plugin |
|
633 may call aDatasink.DatasinkType() to find out |
|
634 exactly what type of sink it is. |
|
635 |
|
636 @leave KErrNotSupported |
|
637 If the controller plugin does not support the data sink, it should leave with this. |
|
638 |
|
639 @since 7.0s |
|
640 */ |
|
641 virtual void AddDataSinkL(MDataSink& aDataSink) = 0; |
|
642 |
|
643 /** |
|
644 Removes a data source from the controller plugin. |
|
645 |
|
646 Note: |
|
647 The data source is owned by the controller framework, NOT by the controller plugin. |
|
648 Under no circumstances should the controller plugin delete the data source. |
|
649 |
|
650 @param aDataSource |
|
651 A reference to the data source to be removed. |
|
652 |
|
653 @leave KErrNotSupported |
|
654 The controller plugin may leave during this method. If the controller plugin does |
|
655 not support the removal of data sources, it should leave with |
|
656 KErrNotSupported. If the controller plugin leaves, the data source will |
|
657 not be destroyed by the controller framework. If it does not leave, the data source |
|
658 will be destroyed. |
|
659 |
|
660 @since 7.0s |
|
661 */ |
|
662 virtual void RemoveDataSourceL(MDataSource& aDataSource) = 0; |
|
663 |
|
664 /** |
|
665 Removes a data sink from the controller plugin. |
|
666 |
|
667 Note: |
|
668 The data sink is owned by the controller framework, NOT by the controller plugin. |
|
669 Under no circumstances should the controller plugin delete the data sink. |
|
670 |
|
671 @param aDataSink |
|
672 A reference to the data sink to be removed. |
|
673 |
|
674 @leave KErrNotSupported |
|
675 The controller plugin may leave during this method. If the controller plugin does |
|
676 not support the removal of data sinks, it should leave with |
|
677 KErrNotSupported. If the controller plugin leaves, the data sink will |
|
678 not be destroyed by the controller framework. If it does not leave, the data sink |
|
679 will be destroyed. |
|
680 |
|
681 @since 7.0s |
|
682 */ |
|
683 virtual void RemoveDataSinkL(MDataSink& aDataSink) = 0; |
|
684 |
|
685 /** |
|
686 Resets the controller plugin. |
|
687 |
|
688 The controller should revert back to its newly constructed state. If the Reset is successful |
|
689 (i.e. it doesn't leave), the controller framework will delete all objects added to the |
|
690 MMFObjectManager including any sources and sinks. |
|
691 |
|
692 @leave KErrNotSupported |
|
693 If the controller plugin does not support being reset, it should leave with KErrNotSupported. |
|
694 |
|
695 @since 7.0s |
|
696 */ |
|
697 virtual void ResetL() = 0; |
|
698 |
|
699 /** |
|
700 Primes the controller plugin. |
|
701 |
|
702 The controller must prepare to start playing, by initialising its sources, sinks and buffers. |
|
703 This moves the controller from the STOPPED to the PRIMED state. |
|
704 |
|
705 @since 7.0s |
|
706 */ |
|
707 virtual void PrimeL() = 0; |
|
708 |
|
709 /** |
|
710 A partner to the PrimeL() method that is overridable to allow Asynchronous |
|
711 completion in the controller whilst maintaining a Synchronous client API. |
|
712 |
|
713 The default implementation of this is to call PrimeL() and complete the message with KErrNone. |
|
714 |
|
715 @since 7.0s |
|
716 */ |
|
717 IMPORT_C virtual void PrimeL(TMMFMessage& aMessage); |
|
718 |
|
719 /** |
|
720 Commences playback. |
|
721 |
|
722 The controller must now begin transferring data from its source(s) to its sink(s). |
|
723 This moves the controller from the PRIMED to the PLAYING state. |
|
724 |
|
725 Note: |
|
726 This method must return once playing has commenced, and not wait until playing is complete. |
|
727 |
|
728 @since 7.0s |
|
729 */ |
|
730 virtual void PlayL()= 0; |
|
731 |
|
732 /** |
|
733 A partner to the PlayL() method that is overridable to allow Asynchronous |
|
734 completion in the controller whilst maintaining a Synchronous client API. |
|
735 |
|
736 The default implementation of this is to call PlayL() and complete the message with KErrNone. |
|
737 |
|
738 @since 7.0s |
|
739 */ |
|
740 IMPORT_C virtual void PlayL(TMMFMessage& aMessage); |
|
741 |
|
742 |
|
743 /** |
|
744 Pauses the controller plugin. |
|
745 |
|
746 The controller must now cease transferring data from its source(s) to its sink(s). |
|
747 This moves the controller from the PLAYING back to the PRIMED state. |
|
748 |
|
749 A subsequent call to Play() will cause the controller plugin to resume playback |
|
750 from the point it was paused (unless there has been a call to SetPosition() in |
|
751 the meantime. |
|
752 |
|
753 @since 7.0s |
|
754 */ |
|
755 virtual void PauseL()= 0; |
|
756 |
|
757 /** |
|
758 A partner to the PauseL() method that is overridable to allow Asynchronous |
|
759 completion in the controller whilst maintaining a Synchronous client API. |
|
760 |
|
761 The default implementation of this is to call PauseL() and complete the message with KErrNone. |
|
762 |
|
763 @since 7.0s |
|
764 */ |
|
765 IMPORT_C virtual void PauseL(TMMFMessage& aMessage); |
|
766 |
|
767 /** |
|
768 Stops the controller plugin. |
|
769 |
|
770 The controller must now undo anything that occurred during the call to Prime(). |
|
771 This moves the controller from the PRIMED back to the STOPPED state. |
|
772 |
|
773 @since 7.0s |
|
774 */ |
|
775 virtual void StopL()= 0; |
|
776 |
|
777 /** |
|
778 A partner to the StopL() method that is overridable to allow Asynchronous |
|
779 completion in the controller whilst maintaining a Synchronous client API. |
|
780 |
|
781 The default implementation of this is to call StopL() and complete the message with KErrNone. |
|
782 |
|
783 @since 7.0s |
|
784 */ |
|
785 IMPORT_C virtual void StopL(TMMFMessage& aMessage); |
|
786 |
|
787 /** |
|
788 Gets the current position. |
|
789 |
|
790 The controller plugin should calculate the current position in microseconds. |
|
791 |
|
792 @return The current position in microseconds. |
|
793 |
|
794 @since 7.0s |
|
795 */ |
|
796 virtual TTimeIntervalMicroSeconds PositionL() const = 0; |
|
797 |
|
798 /** |
|
799 Sets the current position. |
|
800 |
|
801 The controller plugin should reposition itself to the position provided. |
|
802 |
|
803 @param aPosition |
|
804 The desired position in microseconds. |
|
805 |
|
806 @since 7.0s |
|
807 */ |
|
808 virtual void SetPositionL(const TTimeIntervalMicroSeconds& aPosition) = 0; |
|
809 |
|
810 /** |
|
811 Gets the duration of the clip. |
|
812 |
|
813 The controller plugin should calculate the clip duration in microseconds. |
|
814 |
|
815 @return The clips duration in microseconds. |
|
816 |
|
817 @since 7.0s |
|
818 */ |
|
819 virtual TTimeIntervalMicroSeconds DurationL() const = 0; |
|
820 |
|
821 /** |
|
822 Sets the priority settings. |
|
823 |
|
824 The new priority settings must be applied to any resource being used by the controller |
|
825 plugin that requires priority settings (for example the sound device). |
|
826 |
|
827 @param aPrioritySettings |
|
828 The new priority settings |
|
829 |
|
830 @since 7.0s |
|
831 |
|
832 @capability MultimediaDD |
|
833 A process requesting or using this method that has MultimediaDD capability will |
|
834 always have precedence over a process that does not have MultimediaDD. |
|
835 */ |
|
836 virtual void SetPrioritySettings(const TMMFPrioritySettings& aPrioritySettings) = 0; |
|
837 |
|
838 /** |
|
839 Handles a custom command. |
|
840 |
|
841 Custom commands allow a controller plugin to define its own API. If the controller framework |
|
842 does not understand a message from the client, it is assumed this is a custom command for the |
|
843 plugin and passed into this interface. |
|
844 |
|
845 The more common custom commands can be handled by Custom Command Parsers on behalf of the |
|
846 controller plugin. This allows the controller plugin to implement a concrete interface |
|
847 (defined by mixin classes) rather than having to decode the command itself. For more |
|
848 information, see CMMFCustomCommandParserBase. |
|
849 |
|
850 The controller plugin must always complete the message passed into this method, |
|
851 even if it does not support the interface required by the message. |
|
852 |
|
853 @param aMessage |
|
854 The message to be handled by the controller plugin. |
|
855 |
|
856 @see CMMFCustomCommandParserBase. |
|
857 @since 7.0s |
|
858 */ |
|
859 virtual void CustomCommand(TMMFMessage& aMessage) |
|
860 {aMessage.Complete(KErrNotSupported);};//default implementation |
|
861 |
|
862 /** |
|
863 RetrieveS the number of meta data entries in the clip. |
|
864 |
|
865 @param aNumberOfEntries |
|
866 The controller plugin must set this to the number of meta data entries |
|
867 in the clip. |
|
868 |
|
869 @since 7.0s |
|
870 */ |
|
871 virtual void GetNumberOfMetaDataEntriesL(TInt& aNumberOfEntries) = 0; |
|
872 |
|
873 /** |
|
874 Retrieves a meta data entry from the clip. |
|
875 |
|
876 @param aIndex |
|
877 The index of the meta data entry to retrieve. |
|
878 |
|
879 @return A pointer to a newly created CMMFMetaDataEntry object containing the meta information. |
|
880 The controller framework will take ownership of the object when this method returns. |
|
881 |
|
882 @since 7.0s |
|
883 */ |
|
884 virtual CMMFMetaDataEntry* GetMetaDataEntryL(TInt aIndex) = 0; |
|
885 |
|
886 // Utility functions to be used by controller plugins |
|
887 |
|
888 /** |
|
889 Sends an event to the client. |
|
890 |
|
891 The controller plugin can use this method to send an event to the client. |
|
892 |
|
893 @param aEvent |
|
894 The event to be sent to the client. |
|
895 @return One of the system-wide error codes. |
|
896 |
|
897 @since 7.0s |
|
898 */ |
|
899 IMPORT_C TInt DoSendEventToClient(const TMMFEvent& aEvent); |
|
900 |
|
901 /** |
|
902 Gets a reference to the multimedia framework object container. |
|
903 |
|
904 The controller plugin may add CMMFObject-derived objects to the container to allow them |
|
905 to receive messages directly from the client. |
|
906 |
|
907 @return A reference to the MMFObjectContainer. |
|
908 |
|
909 @since 7.0s |
|
910 */ |
|
911 IMPORT_C CMMFObjectContainer& MMFObjectContainerL(); |
|
912 |
|
913 /** |
|
914 Adds a custom command parser to the controller framework. |
|
915 |
|
916 If the controller framework receives a request it does not understand, it will |
|
917 search through its list of custom command parsers before passing the request |
|
918 on to the controller plugin as a custom command. |
|
919 |
|
920 By using the custom command parsers, the controller plugin can implement a concrete |
|
921 API rather than having to decode the common custom commands itself. |
|
922 |
|
923 @param aParser |
|
924 The parser to be added to the controller framework. The controller framework |
|
925 takes ownership of the parser if the call does not leave. |
|
926 |
|
927 @since 7.0s |
|
928 */ |
|
929 IMPORT_C void AddCustomCommandParserL(CMMFCustomCommandParserBase& aParser); |
|
930 |
|
931 /** |
|
932 Retrieves the client thread Id of this controller. |
|
933 |
|
934 @return Thread Id of the controller's client |
|
935 */ |
|
936 IMPORT_C TThreadId ClientThreadIdL(); |
|
937 |
|
938 /** |
|
939 Check the Secure DRM Mode of current controller object |
|
940 |
|
941 @return ETrue if the controller is running under Secure DRM mode; otherwise EFalse. |
|
942 */ |
|
943 IMPORT_C TBool IsSecureDrmModeL(); |
|
944 |
|
945 private: |
|
946 /** |
|
947 This is internal and not intended for use. |
|
948 */ |
|
949 void ConstructL(MAsyncEventHandler& aEventHandler, TThreadId aClientTid); |
|
950 // IPC decode functions |
|
951 TBool DoAddDataSourceL(TMMFMessage& aMessage); |
|
952 TBool DoAddDataSinkL(TMMFMessage& aMessage); |
|
953 TBool DoAddFileHandleDataSourceL(TMMFMessage& aMessage); |
|
954 TBool DoAddFileHandleDataSinkL(TMMFMessage& aMessage); |
|
955 TBool DoRemoveDataSourceL(TMMFMessage& aMessage); |
|
956 TBool DoRemoveDataSinkL(TMMFMessage& aMessage); |
|
957 TBool DoResetL(TMMFMessage& aMessage); |
|
958 TBool DoPrimeL(TMMFMessage& aMessage); |
|
959 TBool DoPlayL(TMMFMessage& aMessage); |
|
960 TBool DoPauseL(TMMFMessage& aMessage); |
|
961 TBool DoStopL(TMMFMessage& aMessage); |
|
962 TBool DoGetPositionL(TMMFMessage& aMessage); |
|
963 TBool DoSetPositionL(TMMFMessage& aMessage); |
|
964 TBool DoGetDurationL(TMMFMessage& aMessage); |
|
965 TBool DoSetPrioritySettingsL(TMMFMessage& aMessage); |
|
966 void DoCustomCommand(TMMFMessage& aMessage); |
|
967 TBool DoGetNumberOfMetaDataEntriesL(TMMFMessage& aMessage); |
|
968 TBool DoGetSizeOfMetaDataEntryL(TMMFMessage& aMessage); |
|
969 TBool DoGetMetaDataEntryL(TMMFMessage& aMessage); |
|
970 TBool DoPreloadSourceSinkInitDataL(TMMFMessage& aMessage); |
|
971 TBool DoAddFileHandleDataSourceWithInitDataL(TMMFMessage& aMessage); |
|
972 TBool DoAddFileHandleDataSinkWithInitDataL(TMMFMessage& aMessage); |
|
973 void ReplaceFileHandleInInitDataL(RFile* aFile, TDes8& aInitData); |
|
974 // Ownership of aSource is taken into this function |
|
975 void AddMDataSourceAndRepondClientL(MDataSource* aSource, TMMFMessage& aMessage); |
|
976 // Ownership of aSink is taken into this function |
|
977 void AddMDataSinkAndRepondClientL(MDataSink* aSink, TMMFMessage& aMessage); |
|
978 CMMFControllerExtendedData* GetExtendedDataL(); |
|
979 static CMMFControllerExtendedData* CreateExtendedDataL(TThreadId aClientTid); |
|
980 |
|
981 private: |
|
982 /** |
|
983 Buffer to assist copy of meta data over the thread boundary. |
|
984 */ |
|
985 CBufFlat* iMetaDataBuffer; |
|
986 |
|
987 /** |
|
988 Required by ECOM. |
|
989 */ |
|
990 TUid iDtor_ID_Key; |
|
991 |
|
992 /** |
|
993 The event handler for the controller plugin. |
|
994 */ |
|
995 MAsyncEventHandler* iAsyncEventHandler; |
|
996 |
|
997 /** |
|
998 The MMF object container. |
|
999 */ |
|
1000 CMMFObjectContainer* iMMFObjectContainer; |
|
1001 |
|
1002 /** |
|
1003 The custom command parser manager. |
|
1004 */ |
|
1005 CMMFCustomCommandParserManager* iCustomCommandParserManager; |
|
1006 }; |
|
1007 |
|
1008 |
|
1009 |
|
1010 /** |
|
1011 @publishedAll |
|
1012 @released |
|
1013 |
|
1014 Mixin class that the user of the class CMMFControllerEventMonitor must derive from. |
|
1015 |
|
1016 @since 7.0s |
|
1017 */ |
|
1018 class MMMFControllerEventMonitorObserver |
|
1019 { |
|
1020 public: |
|
1021 |
|
1022 /** |
|
1023 Handles an event that has been generated. |
|
1024 |
|
1025 @param aEvent |
|
1026 The event to be handled. |
|
1027 |
|
1028 @since 7.0s |
|
1029 */ |
|
1030 virtual void HandleEvent(const TMMFEvent& aEvent) = 0; |
|
1031 }; |
|
1032 |
|
1033 /** |
|
1034 @publishedAll |
|
1035 @released |
|
1036 |
|
1037 Active object utility class that can be used to monitor a controller plugin for events. |
|
1038 If an event occurs, the client will be notified via the MMMFControllerEventMonitorObserver interface. |
|
1039 |
|
1040 @since 7.0s |
|
1041 */ |
|
1042 class CMMFControllerEventMonitor : public CActive |
|
1043 { |
|
1044 public: |
|
1045 |
|
1046 /** |
|
1047 Constructs a controller event monitor object. |
|
1048 |
|
1049 @param aObserver |
|
1050 A reference to the observer of the active object. The observer will be |
|
1051 notified when an event occurs. |
|
1052 @param aMMFController |
|
1053 A reference to the client controller interface class. |
|
1054 |
|
1055 @return A pointer to the new event monitor. |
|
1056 |
|
1057 @since 7.0s |
|
1058 */ |
|
1059 IMPORT_C static CMMFControllerEventMonitor* NewL(MMMFControllerEventMonitorObserver& aObserver, |
|
1060 RMMFController& aMMFController); |
|
1061 /** |
|
1062 Destructor. |
|
1063 */ |
|
1064 ~CMMFControllerEventMonitor(); |
|
1065 |
|
1066 /** |
|
1067 Tells the controller event monitor to start listening for events. |
|
1068 |
|
1069 The controller plugin must have been opened before this method is called. |
|
1070 |
|
1071 @since 7.0s |
|
1072 */ |
|
1073 IMPORT_C void Start(); |
|
1074 |
|
1075 private: |
|
1076 /** |
|
1077 Calls HandleEvent on iObserver. |
|
1078 |
|
1079 This will not leave. |
|
1080 |
|
1081 @since 7.0s |
|
1082 */ |
|
1083 void RunL(); |
|
1084 |
|
1085 /** |
|
1086 Cancels the outstanding request on iMMFController. |
|
1087 |
|
1088 @since 7.0s |
|
1089 */ |
|
1090 void DoCancel(); |
|
1091 |
|
1092 /** |
|
1093 Constructs a controller event monitor object. |
|
1094 |
|
1095 @param aObserver |
|
1096 A reference to the observer of the active object. The observer will be |
|
1097 notified when an event occurs. |
|
1098 @param aMMFController |
|
1099 A reference to the client controller interface class. |
|
1100 |
|
1101 @since 7.0s |
|
1102 */ |
|
1103 CMMFControllerEventMonitor(MMMFControllerEventMonitorObserver& aObserver, |
|
1104 RMMFController& aMMFController); |
|
1105 private: |
|
1106 MMMFControllerEventMonitorObserver& iObserver; |
|
1107 RMMFController& iMMFController; |
|
1108 TMMFEventPckg iEventPckg; |
|
1109 }; |
|
1110 |
|
1111 /** |
|
1112 Mixin class that the user of the class CMMFAddDataSourceSinkAsync must derive from. |
|
1113 @since 8.0 |
|
1114 @publishedAll |
|
1115 @released |
|
1116 */ |
|
1117 class MMMFAddDataSourceSinkAsyncObserver |
|
1118 { |
|
1119 public: |
|
1120 /** |
|
1121 The request to add a data source or sink has completed. |
|
1122 @param "aError" "The error resulting from adding the source/sink." |
|
1123 @param "aHandleInfo" "This object identifies the data source/sink inside the controller |
|
1124 framework. This allows the client to send custom commands directly to |
|
1125 the data source/sink, and to also remove the data sink from the controller. |
|
1126 Note that not all data sinks support custom commands, and not all |
|
1127 controller plugins support the removal of a data sink." |
|
1128 */ |
|
1129 virtual void MadssaoAddDataSourceSinkAsyncComplete(TInt aError, const TMMFMessageDestination& aHandle) = 0; |
|
1130 }; |
|
1131 |
|
1132 |
|
1133 /** |
|
1134 Active object utility class that can be used to add a data source or data sink to a controller |
|
1135 plugin asynchronously. Once the command has been completed, the caller will be notified via the |
|
1136 MMMFAddDataSourceSinkAsyncObserver interface. |
|
1137 @since 8.0 |
|
1138 @publishedAll |
|
1139 @released |
|
1140 |
|
1141 */ |
|
1142 class CMMFAddDataSourceSinkAsync : public CActive |
|
1143 { |
|
1144 public: |
|
1145 |
|
1146 IMPORT_C static CMMFAddDataSourceSinkAsync* NewL(MMMFAddDataSourceSinkAsyncObserver& aObs); |
|
1147 IMPORT_C void AddDataSource(RMMFController& aController, TUid aSourceUid, const TDesC8& aSourceInitData); |
|
1148 IMPORT_C void AddFileHandleDataSource(RMMFController& aController, const RFile& aFile); |
|
1149 IMPORT_C void AddFileHandleDataSource(RMMFController& aController, const RFile& aFile, const TDesC8& aSourceInitData); |
|
1150 IMPORT_C void AddDataSink(RMMFController& aController, TUid aSinkUid, const TDesC8& aSinkInitData); |
|
1151 IMPORT_C void AddFileHandleDataSink(RMMFController& aController, const RFile& aFile); |
|
1152 IMPORT_C void AddFileHandleDataSink(RMMFController& aController, const RFile& aFile, const TDesC8& aSinkInitData); |
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1153 |
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1154 ~CMMFAddDataSourceSinkAsync(); |
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1155 |
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1156 private: |
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1157 void RunL(); |
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1158 void DoCancel(); |
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1159 CMMFAddDataSourceSinkAsync(MMMFAddDataSourceSinkAsyncObserver& aObserver); |
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1160 private: |
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1161 enum TCurrentAction {EIdle, EAddingDataSource, EAddingDataSink}; |
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1162 private: |
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1163 MMMFAddDataSourceSinkAsyncObserver& iObserver; |
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1164 TMMFMessageDestinationPckg iHandleInfoPckg; |
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1165 TCurrentAction iCurrentAction; |
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1166 RMMFController* iMMFController; |
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1167 HBufC8* iSourceSinkInitData; |
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1168 TMMFUidPckg iSourceSinkUidPckg; |
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1169 }; |
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1170 |
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1171 /** |
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1172 @internalComponent |
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1173 |
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1174 The controller proxy session. |
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1175 |
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1176 Only one session can be connected to a controller proxy server. |
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1177 |
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1178 */ |
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1179 NONSHARABLE_CLASS(CMMFControllerExtendedData) : public CMMFObject |
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1180 { |
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1181 public: |
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1182 CMMFControllerExtendedData(); |
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1183 |
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1184 ~CMMFControllerExtendedData(); |
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1185 |
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1186 // Set/Get the source/sink initialization data used by CMMFController |
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1187 // Ownership of aSourceSinkInitData is transferred (NULL pointer is allow) |
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1188 // If source/sink initialization data is already set, previous one will be destroyed |
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1189 void SetSourceSinkInitData(HBufC8* aSourceSinkInitData); |
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1190 HBufC8* SourceSinkInitData() const; |
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1191 void ResetSourceSinkInitData(); |
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1192 |
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1193 // Set/Get the client thread ID used by CMMFController |
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1194 void SetClientThreadId(TThreadId aClientThreadId); |
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1195 TThreadId ClientThreadId() const; |
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1196 |
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1197 // Set/Get the Secure DRM mode of CMMFController |
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1198 void SetSecureDrmMode(TBool aSecureDrmMode); |
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1199 TBool SecureDrmMode() const; |
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1200 |
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1201 //from CMMFObject |
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1202 void HandleRequest(TMMFMessage& aMessage); |
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1203 private: |
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1204 /** |
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1205 Extended data uses by CMMFController: Source/Sink initialization data |
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1206 It serves as a temporary storage for Source/Sink initialization |
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1207 Client should request the server to use and cleanup this variable ASAP |
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1208 once it is being loaded |
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1209 */ |
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1210 HBufC8* iSourceSinkInitData; |
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1211 |
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1212 /** |
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1213 Extended data uses by CMMFController: The client thread Id |
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1214 */ |
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1215 TThreadId iClientThreadId; |
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1216 |
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1217 /** |
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1218 Extended data uses by CMMFController: Controller Scecure DRM Mode |
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1219 */ |
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1220 TBool iSecureDrmMode; |
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1221 }; |
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1222 |
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1223 #endif |