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1 /* |
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2 * Copyright (c) 2006 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: Helper to construct a collection playlist. |
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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 FILES |
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20 #include <bldvariant.hrh> |
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21 #include <s32file.h> |
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22 #include <e32math.h> |
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23 #include <mpxcollectionframeworkdefs.h> |
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24 #include <mpxcollectionmessage.h> |
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25 #include <mpxcollectionutility.h> |
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26 #include <mpxcollectionplaylist.h> |
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27 #include <mpxcollectionpath.h> |
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28 #include <mpxcollectionuihelper.h> |
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29 #include <mpxplaybackutility.h> |
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30 #include <mpxplaybackmessage.h> |
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31 #include <mpxmessagegeneraldefs.h> |
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32 #include <mpxplaybackmessagedefs.h> |
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33 #include <mpxcollectionopenutility.h> |
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34 #include <mpxconstants.h> |
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35 |
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36 #include "mpxcollectionviewhgplaylisthelper.h" |
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37 #include "mpxlog.h" |
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38 |
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39 // CONSTANTS |
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40 const TInt KIncrementalFetchCount = 400; |
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41 const TInt KIncrementalNullOffset = 0; |
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42 |
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43 // ============================ MEMBER FUNCTIONS ============================== |
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44 |
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45 // ---------------------------------------------------------------------------- |
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46 // Two-phased constructor. |
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47 // ---------------------------------------------------------------------------- |
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48 // |
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49 CMPXCollectionViewHgPlaylistHelper* CMPXCollectionViewHgPlaylistHelper::NewL( |
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50 MMPXPlaybackUtility* aPlaybackUtility, |
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51 MMPXCollectionUiHelper* aCollectionUiHelper) |
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52 { |
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53 CMPXCollectionViewHgPlaylistHelper* self = NewLC(aPlaybackUtility, aCollectionUiHelper); |
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54 CleanupStack::Pop(self); |
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55 return self; |
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56 } |
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57 |
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58 // ---------------------------------------------------------------------------- |
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59 // Two-phased constructor. |
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60 // ---------------------------------------------------------------------------- |
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61 // |
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62 CMPXCollectionViewHgPlaylistHelper* CMPXCollectionViewHgPlaylistHelper::NewLC( |
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63 MMPXPlaybackUtility* aPlaybackUtility, |
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64 MMPXCollectionUiHelper* aCollectionUiHelper ) |
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65 { |
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66 CMPXCollectionViewHgPlaylistHelper* self = |
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67 new (ELeave) CMPXCollectionViewHgPlaylistHelper(aPlaybackUtility, |
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68 aCollectionUiHelper); |
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69 CleanupStack::PushL(self); |
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70 self->ConstructL(); |
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71 return self; |
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72 } |
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73 |
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74 // ---------------------------------------------------------------------------- |
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75 // C++ constructor can NOT contain any code that might leave. |
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76 // ---------------------------------------------------------------------------- |
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77 // |
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78 CMPXCollectionViewHgPlaylistHelper::CMPXCollectionViewHgPlaylistHelper( |
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79 MMPXPlaybackUtility* aPlaybackUtility, |
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80 MMPXCollectionUiHelper* aCollectionUiHelper ) |
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81 : iPlaybackUtility(aPlaybackUtility), |
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82 iCollectionUiHelper( aCollectionUiHelper ), |
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83 iPathInitialized(0), |
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84 iIsInitializing(EFalse), |
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85 iInitCanceled(EFalse), |
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86 iLoadSavedPath(EFalse), |
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87 iEnableShuffle(EFalse) |
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88 { |
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89 } |
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90 |
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91 // ---------------------------------------------------------------------------- |
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92 // Destructor. |
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93 // ---------------------------------------------------------------------------- |
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94 // |
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95 CMPXCollectionViewHgPlaylistHelper::~CMPXCollectionViewHgPlaylistHelper() |
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96 { |
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97 if ( iCollectionUtility ) |
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98 { |
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99 iCollectionUtility->Close(); |
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100 } |
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101 |
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102 delete iIncOpenUtil; |
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103 } |
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104 |
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105 // ---------------------------------------------------------------------------- |
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106 // Symbian 2nd phase constructor can leave. |
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107 // ---------------------------------------------------------------------------- |
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108 // |
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109 void CMPXCollectionViewHgPlaylistHelper::ConstructL() |
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110 { |
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111 iCollectionUtility = MMPXCollectionUtility::NewL( this, KMcModeIsolated ); |
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112 iIncOpenUtil = CMPXCollectionOpenUtility::NewL( this, KMcModeIsolated ); |
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113 } |
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114 |
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115 |
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116 // --------------------------------------------------------------------------- |
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117 // Create the default path and load it in collection |
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118 // --------------------------------------------------------------------------- |
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119 // |
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120 void CMPXCollectionViewHgPlaylistHelper::LoadDefaultPathL( TInt aDelay ) |
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121 { |
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122 MPX_DEBUG1("CMPXCollectionViewHgPlaylistHelper::LoadDefaultPathL"); |
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123 CMPXCollectionPath* cpath = iCollectionUiHelper->CreateDefaultPlaylistPathLC(); |
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124 |
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125 if (!iIsInitializing) |
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126 { |
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127 // Get incremental utility to open the path |
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128 // |
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129 DoIncrementalOpenL( *cpath, KIncrementalNullOffset, aDelay ); |
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130 |
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131 iPathInitialized = EFalse; |
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132 iIsInitializing = ETrue; |
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133 iInitCanceled = EFalse; |
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134 iDefaultPath = ETrue; |
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135 iSelectionId = KMPXInvalidItemId; |
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136 } |
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137 CleanupStack::PopAndDestroy( cpath ); |
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138 } |
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139 |
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140 // --------------------------------------------------------------------------- |
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141 // Create playlist from default path. |
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142 // --------------------------------------------------------------------------- |
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143 // |
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144 void CMPXCollectionViewHgPlaylistHelper::InitPlaylistL(TBool aEnableShuffle) |
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145 { |
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146 MPX_DEBUG1("CMPXCollectionViewHgPlaylistHelper::InitPlaylistL"); |
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147 CMPXCollectionPath* cpath = iCollectionUiHelper->CreateDefaultPlaylistPathLC(); |
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148 |
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149 if (!iIsInitializing) |
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150 { |
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151 // Get incremental utility to open the path |
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152 // |
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153 DoIncrementalOpenL( *cpath, KIncrementalNullOffset, 0 ); |
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154 |
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155 iPathInitialized = EFalse; |
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156 iIsInitializing = ETrue; |
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157 iInitCanceled = EFalse; |
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158 iDefaultPath = ETrue; |
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159 iSelectionId = KMPXInvalidItemId; |
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160 iEnableShuffle = aEnableShuffle; |
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161 } |
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162 CleanupStack::PopAndDestroy( cpath ); |
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163 } |
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164 |
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165 // --------------------------------------------------------------------------- |
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166 // Create playlist from provided path |
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167 // --------------------------------------------------------------------------- |
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168 // |
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169 void CMPXCollectionViewHgPlaylistHelper::InitPlaylistL(CMPXCollectionPath& aPath, TBool aEnableShuffle) |
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170 { |
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171 MPX_DEBUG1("CMPXCollectionViewHgPlaylistHelper::InitPlaylistL"); |
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172 |
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173 if (!iIsInitializing) |
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174 { |
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175 if (aEnableShuffle) |
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176 { |
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177 TTime time; |
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178 time.UniversalTime(); |
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179 TInt64 seed = time.Int64(); |
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180 TInt randIndex = Math::Rand(seed) % aPath.Count(); |
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181 aPath.Set(randIndex); |
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182 } |
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183 |
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184 CMPXCollectionPlaylist* playlist = CMPXCollectionPlaylist::NewL( aPath ); |
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185 CleanupStack::PushL( playlist ); |
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186 |
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187 iPlaybackUtility->SetL( EPbPropertyRandomMode, aEnableShuffle ); |
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188 iPlaybackUtility->InitL( *playlist, ETrue ); |
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189 CleanupStack::PopAndDestroy( playlist ); |
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190 |
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191 //iPlaybackUtility->SetL( EPbPropertyRandomMode, aEnableShuffle ); |
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192 //iCollectionUtility->Collection().OpenL(aPath); |
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193 |
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194 iPathInitialized = ETrue; |
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195 iInitCanceled = EFalse; |
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196 iDefaultPath = EFalse; |
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197 iSelectionId = KMPXInvalidItemId; |
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198 } |
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199 } |
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200 |
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201 |
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202 // --------------------------------------------------------------------------- |
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203 // Check the initialized flag |
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204 // --------------------------------------------------------------------------- |
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205 // |
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206 TBool CMPXCollectionViewHgPlaylistHelper::Initialized() |
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207 { |
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208 return iPathInitialized; |
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209 } |
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210 |
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211 // --------------------------------------------------------------------------- |
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212 // Check the iIsInitializing flag |
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213 // --------------------------------------------------------------------------- |
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214 // |
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215 TBool CMPXCollectionViewHgPlaylistHelper::IsInitializing() |
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216 { |
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217 return iIsInitializing; |
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218 } |
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219 |
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220 // --------------------------------------------------------------------------- |
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221 // Set the initialized flag |
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222 // --------------------------------------------------------------------------- |
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223 // |
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224 void CMPXCollectionViewHgPlaylistHelper::SetInitialized( TBool aInit ) |
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225 { |
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226 iPathInitialized = aInit; |
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227 iIsInitializing = EFalse; |
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228 } |
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229 |
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230 // --------------------------------------------------------------------------- |
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231 // Cancels the initialize operation |
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232 // --------------------------------------------------------------------------- |
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233 // |
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234 void CMPXCollectionViewHgPlaylistHelper::CancelInit() |
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235 { |
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236 iInitCanceled = ETrue; |
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237 SetInitialized( ETrue ); |
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238 } |
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239 |
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240 // --------------------------------------------------------------------------- |
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241 // From MMPXCollectionObserver. |
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242 // Handle media properties. |
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243 // --------------------------------------------------------------------------- |
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244 // |
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245 void CMPXCollectionViewHgPlaylistHelper::HandleCollectionMediaL( |
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246 const CMPXMedia& /*aMedia*/, |
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247 TInt /*aError*/ ) |
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248 { |
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249 // Do nothing |
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250 } |
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251 |
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252 // --------------------------------------------------------------------------- |
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253 // From MMPXCollectionObserver. |
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254 // Handle collection message. |
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255 // --------------------------------------------------------------------------- |
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256 // |
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257 void CMPXCollectionViewHgPlaylistHelper::HandleCollectionMessage( |
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258 CMPXMessage* aMessage, TInt aError ) |
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259 { |
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260 if ( aError == KErrNone && aMessage ) |
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261 { |
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262 TRAP_IGNORE( DoHandleCollectionMessageL( *aMessage ) ); |
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263 } |
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264 } |
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265 |
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266 // --------------------------------------------------------------------------- |
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267 // From MMPXCollectionObserver. |
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268 // Handles the collection entries being opened. |
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269 // --------------------------------------------------------------------------- |
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270 // |
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271 void CMPXCollectionViewHgPlaylistHelper::HandleOpenL( |
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272 const CMPXMedia& /* aEntries */, |
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273 TInt /* aIndex */, |
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274 TBool /* aComplete */, |
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275 TInt aError ) |
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276 { |
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277 // OpenL() callback from trying to open the default Music Menu -> All Songs |
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278 // or from opening a container |
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279 // |
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280 MPX_DEBUG1("CMPXCollectionViewHgPlaylistHelper::HandleOpenL -- Passing path to playback engine"); |
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281 |
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282 // Stop the incremental open algorithm. We are only interested in fetcing |
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283 // a single block containing the item we want to play. This will speed up the |
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284 // initalization procedure. Once the playlist is created, the playlist |
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285 // takes over the rest of the incremental open operation |
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286 // |
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287 iIncOpenUtil->Stop(); |
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288 if ( aError == KErrNone ) |
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289 { |
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290 |
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291 CMPXCollectionPath* cPath = iIncOpenUtil->PathL(); |
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292 CleanupStack::PushL( cPath ); |
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293 InitPlaybackEngineL( *cPath ); |
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294 CleanupStack::PopAndDestroy( cPath ); |
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295 iIsInitializing = EFalse; |
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296 iPathInitialized = ETrue; |
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297 iInitCanceled = EFalse; |
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298 } |
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299 else |
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300 { |
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301 if( iDefaultPath ) |
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302 { |
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303 MPX_DEBUG1("CMPXCollectionViewHgPlaylistHelper::HandleOpenL - Failed to open default path"); |
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304 // Failed to open default path, set to initialized |
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305 // "No songs view" |
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306 // |
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307 iDefaultPath = EFalse; |
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308 iPathInitialized = ETrue; |
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309 iIsInitializing = EFalse; |
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310 } |
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311 else |
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312 { |
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313 MPX_DEBUG1("CMPXCollectionViewHgPlaylistHelper::HandleOpenL - Opening default Path"); |
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314 iIsInitializing = EFalse; |
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315 // Try opening default |
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316 LoadDefaultPathL(); |
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317 } |
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318 } |
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319 } |
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320 |
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321 // --------------------------------------------------------------------------- |
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322 // Handle playback message. |
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323 // --------------------------------------------------------------------------- |
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324 // |
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325 void CMPXCollectionViewHgPlaylistHelper::HandlePlaybackMessage( |
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326 CMPXMessage* aMessage, TInt aError ) |
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327 { |
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328 if ( aError == KErrNone && aMessage ) |
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329 { |
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330 TRAP_IGNORE( DoHandlePlaybackMessageL( *aMessage ) ); |
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331 } |
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332 } |
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333 |
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334 |
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335 // --------------------------------------------------------------------------- |
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336 // From MMPXCollectionObserver. |
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337 // Handles the item being opened. |
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338 // --------------------------------------------------------------------------- |
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339 // |
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340 void CMPXCollectionViewHgPlaylistHelper::HandleOpenL( |
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341 const CMPXCollectionPlaylist& aPlaylist, |
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342 TInt aError ) |
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343 { |
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344 MPX_FUNC("CMPXCollectionViewHgPlaylistHelper::HandleOpenL"); |
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345 if( aError == KErrNone ) |
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346 { |
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347 if ( !iInitCanceled ) |
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348 { |
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349 MPX_DEBUG1( "CMPXCollectionViewHgPlaylistHelper::HandleOpenL - Opening playlist" ); |
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350 |
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351 // toggle repeat and shuffle to off if podcast playlist |
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352 if(KMPXUidPodcastDBPlugin == TUid::Uid((TInt)aPlaylist.Path().Id(0))) |
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353 { |
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354 CMPXCollectionPlaylist* tmp = |
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355 CMPXCollectionPlaylist::NewL( aPlaylist ); |
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356 CleanupStack::PushL( tmp ); |
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357 tmp->SetRepeatEnabled( EFalse ); |
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358 tmp->SetShuffleEnabledL( EFalse ); |
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359 iPlaybackUtility->InitL( *tmp, EFalse ); |
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360 CleanupStack::PopAndDestroy( tmp ); |
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361 } |
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362 else |
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363 { |
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364 iPlaybackUtility->InitL( aPlaylist, EFalse ); |
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365 } |
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366 } |
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367 else |
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368 { |
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369 MPX_DEBUG1( "CMPXCollectionViewHgPlaylistHelper::HandleOpenL - Init canceled, do nothing" ); |
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370 } |
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371 } |
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372 else |
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373 { |
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374 if( iDefaultPath ) |
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375 { |
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376 // Failed to open default path, set to initialized |
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377 // "No songs view" |
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378 // |
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379 iDefaultPath = EFalse; |
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380 iPathInitialized = ETrue; |
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381 iIsInitializing = EFalse; |
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382 } |
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383 else |
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384 { |
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385 // Try opening default |
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386 LoadDefaultPathL(); |
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387 } |
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388 } |
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389 } |
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390 |
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391 // --------------------------------------------------------------------------- |
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392 // Initialize the playback engine with a collection path |
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393 // --------------------------------------------------------------------------- |
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394 // |
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395 void CMPXCollectionViewHgPlaylistHelper::InitPlaybackEngineL( CMPXCollectionPath& aPath ) |
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396 { |
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397 MPX_FUNC( "CMPXCollectionViewHgPlaylistHelper::InitPlaybackEngineL" ); |
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398 |
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399 if( !iInitCanceled ) |
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400 { |
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401 TTime time; |
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402 time.UniversalTime(); |
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403 TInt64 seed = time.Int64(); |
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404 TInt randIndex = Math::Rand(seed) % aPath.Count(); |
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405 aPath.Set(randIndex); |
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406 CMPXCollectionPlaylist* playlist = CMPXCollectionPlaylist::NewL( aPath ); |
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407 CleanupStack::PushL( playlist ); |
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408 playlist->SetShuffleEnabledL( ETrue ); |
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409 iPlaybackUtility->SetL( EPbPropertyRandomMode, iEnableShuffle ); |
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410 iPlaybackUtility->InitL( *playlist, ETrue ); |
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411 CleanupStack::PopAndDestroy( playlist ); |
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412 } |
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413 else |
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414 { |
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415 iIsInitializing = EFalse; |
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416 iPathInitialized = ETrue; |
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417 iInitCanceled = EFalse; |
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418 } |
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419 } |
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420 |
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421 // ----------------------------------------------------------------------------- |
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422 // Handle playback message |
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423 // ----------------------------------------------------------------------------- |
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424 // |
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425 void CMPXCollectionViewHgPlaylistHelper::DoHandlePlaybackMessageL( const CMPXMessage& aMessage ) |
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426 { |
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427 MPX_FUNC( "CMPXCollectionViewHgPlaylistHelper::DoHandlePlaybackMessageL" ); |
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428 TMPXMessageId id( aMessage.ValueTObjectL<TMPXMessageId>( KMPXMessageGeneralId ) ); |
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429 if ( KMPXMessageGeneral == id ) |
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430 { |
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431 TInt event( aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralEvent ) ); |
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432 MPX_DEBUG2( "CMPXCollectionViewHgPlaylistHelper::DoHandlePlaybackMessageL(%d)", event ); |
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433 |
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434 switch ( event ) |
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435 { |
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436 default: |
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437 { |
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438 // ignore other messages |
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439 break; |
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440 } |
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441 } |
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442 } |
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443 } |
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444 |
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445 // ----------------------------------------------------------------------------- |
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446 // Handle collection message |
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447 // ----------------------------------------------------------------------------- |
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448 // |
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449 void CMPXCollectionViewHgPlaylistHelper::DoHandleCollectionMessageL( |
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450 const CMPXMessage& /*aMessage*/ ) |
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451 { |
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452 MPX_FUNC( "CMPXCollectionViewHgPlaylistHelper::DoHandleCollectionMessageL" ); |
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453 |
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454 } |
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455 |
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456 // ----------------------------------------------------------------------------- |
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457 // Start the incremental reading operation at an offset |
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458 // ----------------------------------------------------------------------------- |
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459 // |
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460 void CMPXCollectionViewHgPlaylistHelper::DoIncrementalOpenL( CMPXCollectionPath& aPath, |
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461 TInt aIndex, |
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462 TInt aDelay ) |
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463 { |
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464 RArray<TMPXAttribute> attrs; |
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465 CleanupClosePushL( attrs ); |
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466 TArray<TMPXAttribute> ary = attrs.Array(); |
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467 iIncOpenUtil->Stop(); |
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468 iIncOpenUtil->SetDelay( aDelay ); |
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469 iIncOpenUtil->StartL( aPath, ary, KIncrementalFetchCount, |
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470 aIndex, CMPXCollectionOpenUtility::EFetchNormal ); |
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471 CleanupStack::PopAndDestroy( &attrs ); |
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472 } |
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473 |
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474 |
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475 // End of File |