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1 /* |
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2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * 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 "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 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Audio thumbnail provider plugin |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <ecom/ecom.h> |
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20 #include <implementationproxy.h> |
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21 |
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22 #include "thumbnailaudioprovider.h" |
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23 #include "thumbnailimagedecoderv3.h" |
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24 #include "thumbnailmanageruids.hrh" |
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25 #include "thumbnaillog.h" |
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26 #include <metadatautility.h> |
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27 #include <metadatafieldcontainer.h> |
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28 #include "thumbnailmanagerconstants.h" |
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29 |
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30 |
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31 #ifndef IMPLEMENTATION_PROXY_ENTRY |
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32 typedef TAny* TProxyNewLPtr; |
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33 #define IMPLEMENTATION_PROXY_ENTRY(aUid, aFuncPtr) \ |
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34 { {aUid}, static_cast<TProxyNewLPtr>(aFuncPtr) } |
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35 #endif |
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36 |
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37 |
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38 // ======== MEMBER FUNCTIONS ======== |
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39 |
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40 // --------------------------------------------------------------------------- |
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41 // CThumbnailImageProvider::NewL() |
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42 // Two-phased constructor. |
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43 // --------------------------------------------------------------------------- |
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44 // |
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45 CThumbnailAudioProvider* CThumbnailAudioProvider::NewL() |
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46 { |
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47 CThumbnailAudioProvider* self = new( ELeave )CThumbnailAudioProvider(); |
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48 return self; |
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49 } |
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50 |
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51 |
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52 // --------------------------------------------------------------------------- |
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53 // CThumbnailAudioProvider::CThumbnailAudioProvider() |
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54 // C++ default constructor can NOT contain any code, that might leave. |
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55 // --------------------------------------------------------------------------- |
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56 // |
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57 CThumbnailAudioProvider::CThumbnailAudioProvider() |
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58 { |
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59 TN_DEBUG1( "CThumbnailAudioProvider::CThumbnailAudioProvider()" ); |
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60 } |
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61 |
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62 |
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63 // --------------------------------------------------------------------------- |
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64 // CThumbnailAudioProvider::~CThumbnailAudioProvider() |
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65 // Destructor. |
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66 // --------------------------------------------------------------------------- |
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67 // |
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68 CThumbnailAudioProvider::~CThumbnailAudioProvider() |
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69 { |
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70 TN_DEBUG1( "CThumbnailAudioProvider::~CThumbnailAudioProvider()" ); |
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71 delete iImageDecoderv3; |
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72 REComSession::DestroyedImplementation( iDtor_ID_Key ); |
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73 } |
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74 |
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75 |
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76 // --------------------------------------------------------------------------- |
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77 // CThumbnailAudioProvider::GetThumbnailL() |
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78 // Provides the thumbnail image |
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79 // --------------------------------------------------------------------------- |
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80 // |
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81 void CThumbnailAudioProvider::GetThumbnailL( RFs& aFs, RFile64& aFile, const |
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82 TDataType& aMimeType , const CThumbnailManager::TThumbnailFlags aFlags, |
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83 const TDisplayMode /*aDisplayMode*/, const CThumbnailManager::TThumbnailQualityPreference /*aQualityPreference*/ ) |
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84 { |
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85 CMetaDataUtility* metaDataUtil = CMetaDataUtility::NewL(); |
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86 CleanupStack::PushL( metaDataUtil ); |
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87 |
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88 RArray<TMetaDataFieldId> wantedFields; |
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89 CleanupClosePushL(wantedFields); |
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90 wantedFields.AppendL(EMetaDataJpeg); |
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91 |
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92 metaDataUtil->OpenFileL(aFile, wantedFields, aMimeType.Des8()); |
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93 const CMetaDataFieldContainer& metaCont = metaDataUtil->MetaDataFieldsL(); |
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94 TPtrC8 ptr = metaCont.Field8( EMetaDataJpeg ); |
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95 HBufC8* data = ptr.AllocL(); |
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96 |
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97 CleanupStack::PushL( data ); |
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98 |
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99 if(data->Length() == 0) |
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100 { |
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101 User::Leave( KErrNotFound ); |
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102 } |
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103 |
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104 CleanupStack::Pop( data ); |
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105 CleanupStack::PopAndDestroy(&wantedFields); |
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106 CleanupStack::PopAndDestroy(metaDataUtil); |
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107 |
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108 if ( !iImageDecoderv3 ) |
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109 { |
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110 iImageDecoderv3 = new( ELeave )CThumbnailImageDecoderv3( aFs ); |
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111 } |
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112 |
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113 iMimeType = TDataType(KJpegMime); |
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114 iFlags = aFlags; |
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115 //set default mode displaymode from global constants |
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116 iDisplayMode = KStoreDisplayMode; |
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117 |
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118 iImageDecoderv3->CreateL( data, *iObserver, iFlags, iMimeType, iTargetSize ); |
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119 iOriginalSize = iImageDecoderv3->OriginalSize(); |
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120 iImageDecoderv3->DecodeL( iDisplayMode ); |
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121 } |
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122 |
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123 // --------------------------------------------------------------------------- |
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124 // CThumbnailAudioProvider::GetThumbnailL() |
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125 // Provides the thumbnail image |
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126 // --------------------------------------------------------------------------- |
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127 // |
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128 void CThumbnailAudioProvider::GetThumbnailL( RFs& /* aFs */, TDesC8* /* aBuffer */, const |
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129 TDataType& /*aMimeType */, const CThumbnailManager::TThumbnailFlags /* aFlags */, |
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130 const TDisplayMode /* aDisplayMode */, const CThumbnailManager::TThumbnailQualityPreference /*aQualityPreference*/ ) |
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131 { |
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132 |
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133 } |
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134 |
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135 // --------------------------------------------------------------------------- |
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136 // CThumbnailAudioProvider::GetThumbnailL() |
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137 // Provides the thumbnail image |
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138 // --------------------------------------------------------------------------- |
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139 // |
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140 void CThumbnailAudioProvider::GetThumbnailL( RFs& /* aFs */, TDesC8& /*aBuffer */) |
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141 { |
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142 |
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143 } |
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144 |
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145 // --------------------------------------------------------------------------- |
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146 // Cancel thumbnail request |
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147 // --------------------------------------------------------------------------- |
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148 // |
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149 void CThumbnailAudioProvider::CancelGetThumbnail() |
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150 { |
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151 if ( iImageDecoderv3) |
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152 { |
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153 iImageDecoderv3->Cancel(); |
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154 } |
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155 |
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156 } |
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157 |
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158 // ======== GLOBAL FUNCTIONS ======== |
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159 |
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160 // ----------------------------------------------------------------------------- |
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161 // ImplementationTable |
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162 // Define the interface UIDs |
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163 // ----------------------------------------------------------------------------- |
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164 // |
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165 const TImplementationProxy ImplementationTable[] = |
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166 { |
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167 IMPLEMENTATION_PROXY_ENTRY( THUMBNAIL_AUDIO_PROVIDER_IMP_UID, |
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168 CThumbnailAudioProvider::NewL ) |
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169 }; |
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170 |
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171 |
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172 // ----------------------------------------------------------------------------- |
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173 // ImplementationGroupProxy |
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174 // The one and only exported function that is the ECom entry point |
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175 // ----------------------------------------------------------------------------- |
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176 // |
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177 EXPORT_C const TImplementationProxy* ImplementationGroupProxy( TInt& |
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178 aTableCount ) |
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179 { |
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180 aTableCount = sizeof( ImplementationTable ) / sizeof( TImplementationProxy ); |
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181 return ImplementationTable; |
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182 } |
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183 |
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184 //End of file |