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: This class is used for global volume |
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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 // CLASS HEADER |
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20 #include "cmmaglobalvolume.h" |
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21 |
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22 // INTERNAL INCLUDES |
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23 #include "cmmaplayer.h" |
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24 #include "cmmaforeground.h" |
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25 #include "cmmavolumekeyslistener.h" |
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26 #include "mmaprivatecrkeys.h" |
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27 |
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28 // EXTERNAL INCLUDES |
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29 #include <centralrepository.h> |
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30 #include <logger.h> |
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31 |
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32 // UNNAMED LOCAL NAMESPACE |
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33 namespace |
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34 { |
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35 // Volume level step size |
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36 const TInt KMMAVolumeLevelStep = 10; |
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37 // Error when setting new volume level for a control |
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38 _LIT(KMMAGlobalVolumeSetError, "Can't set volume level"); |
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39 } |
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40 |
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41 |
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42 // ============================ MEMBER FUNCTIONS ============================= |
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43 |
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44 // --------------------------------------------------------------------------- |
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45 // CMMAGlobalVolume::NewL |
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46 // --------------------------------------------------------------------------- |
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47 // |
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48 CMMAGlobalVolume* CMMAGlobalVolume::NewL(CMMAForeground* aForeground) |
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49 { |
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50 CMMAGlobalVolume* self = new(ELeave) CMMAGlobalVolume(aForeground); |
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51 CleanupStack::PushL(self); |
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52 self->ConstructL(); |
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53 CleanupStack::Pop(self); |
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54 return self; |
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55 } |
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56 |
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57 // --------------------------------------------------------------------------- |
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58 // CMMAGlobalVolume::~CMMAGlobalVolume |
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59 // --------------------------------------------------------------------------- |
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60 // |
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61 CMMAGlobalVolume::~CMMAGlobalVolume() |
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62 { |
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63 delete iVolumeKeysListener; |
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64 //delete iSettingsStore; |
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65 delete iForeground; |
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66 iControlList.Close(); |
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67 } |
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68 |
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69 // --------------------------------------------------------------------------- |
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70 // CMMAGlobalVolume::AddPlayerL |
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71 // --------------------------------------------------------------------------- |
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72 // |
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73 void CMMAGlobalVolume::AddPlayerL(CMMAPlayer* aPlayer) |
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74 { |
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75 // Find if the player has a volume control |
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76 CMMAVolumeControl* control = FindVolumeControl(aPlayer); |
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77 |
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78 // Ignore adding new player if it does not support volume control |
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79 if (control) |
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80 { |
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81 TMMAPlayerHolder playerHolder; |
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82 // Create new volume control and level index pair |
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83 playerHolder.iVolumeControl = control; |
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84 playerHolder.iVolumeIndex = control->AddLevelL(); |
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85 playerHolder.iPlayer = aPlayer; |
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86 // Set current volume level for the control |
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87 control->SetVolumeLevelL(playerHolder.iVolumeIndex, iLevel); |
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88 // Add created pair to the control list |
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89 iControlList.AppendL(playerHolder); |
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90 } |
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91 } |
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92 |
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93 // --------------------------------------------------------------------------- |
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94 // CMMAGlobalVolume::RemovePlayer |
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95 // --------------------------------------------------------------------------- |
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96 // |
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97 void CMMAGlobalVolume::RemovePlayer(CMMAPlayer* aPlayer) |
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98 { |
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99 // Find if the player has a volume control |
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100 CMMAVolumeControl* control = FindVolumeControl(aPlayer); |
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101 |
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102 // Ignore adding new player if it does not support volume control |
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103 if (control) |
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104 { |
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105 // Check that if this type of volume control can be found from |
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106 // the control list and remove it |
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107 TInt count(iControlList.Count()); |
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108 for (TInt i(0); i < count; i++) |
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109 { |
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110 const TMMAPlayerHolder& holder = iControlList[ i ]; |
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111 if (control == holder.iVolumeControl) |
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112 { |
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113 iControlList.Remove(i); |
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114 break; |
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115 } |
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116 } |
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117 } |
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118 } |
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119 |
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120 // --------------------------------------------------------------------------- |
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121 // CMMAGlobalVolume::VolumeUp |
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122 // --------------------------------------------------------------------------- |
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123 // |
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124 void CMMAGlobalVolume::VolumeUp() |
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125 { |
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126 LOG1( EJavaMMAPI, EInfo, "THREADID = %d : CMMAGlobalVolume: VolumeUp: +", RThread().Id().Id()); |
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127 // Adjust volume if midlet is in foreground and the volume level value |
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128 // is not too high, in this case it cannot be set over KMMAVolumeMaxLevel |
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129 if (iForeground->IsForeground() && (iLevel < KMMAVolumeMaxLevel)) |
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130 { |
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131 LOG( EJavaMMAPI, EInfo, "CMMAGlobalVolume: VolumeUp: Volume up"); |
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132 // Check that the current volume level is not increased too much |
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133 TInt level = |
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134 iLevel > (KMMAVolumeMaxLevel - KMMAVolumeLevelStep) ? |
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135 KMMAVolumeMaxLevel - iLevel : iLevel + KMMAVolumeLevelStep; |
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136 // Increase level by new value |
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137 SetControlVolumeLevels(level); |
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138 } |
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139 LOG( EJavaMMAPI, EInfo, "CMMAGlobalVolume: VolumeUp: -"); |
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140 } |
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141 |
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142 // --------------------------------------------------------------------------- |
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143 // CMMAGlobalVolume::VolumeDown |
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144 // --------------------------------------------------------------------------- |
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145 // |
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146 void CMMAGlobalVolume::VolumeDown() |
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147 { |
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148 LOG1( EJavaMMAPI, EInfo, "THREADID = %d : CMMAGlobalVolume: VolumeDown: +", RThread().Id().Id()); |
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149 // Adjust volume if midlet is in foreground and the volume value |
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150 // is not too low, in this case it cannot be set under zero |
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151 if (iForeground->IsForeground() && (iLevel > 0)) |
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152 { |
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153 LOG( EJavaMMAPI, EInfo, "CMMAGlobalVolume: VolumeDown: Volume down"); |
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154 // Check that the currnet volume level is not decreased too much |
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155 TInt level = |
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156 iLevel < KMMAVolumeLevelStep ? |
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157 0 : iLevel - KMMAVolumeLevelStep; |
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158 // Decrease level by new value |
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159 SetControlVolumeLevels(level); |
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160 } |
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161 LOG( EJavaMMAPI, EInfo, "CMMAGlobalVolume: VolumeDown: -"); |
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162 } |
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163 |
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164 // --------------------------------------------------------------------------- |
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165 // CMMAGlobalVolume::FindVolumeControl |
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166 // --------------------------------------------------------------------------- |
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167 // |
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168 CMMAVolumeControl* CMMAGlobalVolume::FindVolumeControl(CMMAPlayer* aPlayer) |
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169 { |
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170 TInt count(aPlayer->ControlCount()); |
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171 for (TInt i(0); i < count; i++) |
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172 { |
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173 CMMAControl* control = aPlayer->Control(i); |
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174 // Check that if this control supports volume control |
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175 if (control->ClassName() == KMMAVolumeControlName) |
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176 { |
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177 return static_cast< CMMAVolumeControl* >(control); |
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178 } |
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179 } |
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180 // Does not support volume control |
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181 return NULL; |
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182 } |
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183 |
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184 // --------------------------------------------------------------------------- |
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185 // CMMAGlobalVolume::SetControlVolumeLevels |
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186 // --------------------------------------------------------------------------- |
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187 // |
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188 void CMMAGlobalVolume::SetControlVolumeLevels(TInt aLevel) |
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189 { |
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190 TInt count(iControlList.Count()); |
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191 // Adjust volume for all current volume controls associated |
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192 for (TInt i(0); i < count; i++) |
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193 { |
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194 const TMMAPlayerHolder& hdr = iControlList[ i ]; |
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195 // Set new volume level for this control |
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196 TRAPD(error, |
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197 hdr.iVolumeControl->SetVolumeLevelL(hdr.iVolumeIndex, aLevel)); |
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198 if (error != KErrNone) |
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199 { |
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200 hdr.iPlayer->PostStringEvent( |
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201 CMMAPlayerEvent::EError, |
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202 KMMAGlobalVolumeSetError()); |
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203 } |
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204 } |
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205 |
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206 iLevel = aLevel; |
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207 LOG1( EJavaMMAPI, EInfo, |
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208 "CMMAGlobalVolume::SetControlVolumeLevels - iLevel = %d", iLevel); |
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209 |
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210 // Store new volume to MMA global settings. Error cannot be reported |
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211 // in any sophisticated way so we just have to ignore it. Debug builds |
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212 // may panic in this case |
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213 TInt error = iSettingsStore->Set(KMobileMediaVolumeLevel, aLevel); |
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214 __ASSERT_DEBUG(error == KErrNone, User::Invariant()); |
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215 } |
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216 |
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217 // --------------------------------------------------------------------------- |
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218 // CMMAGlobalVolume::CMMAGlobalVolume |
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219 // --------------------------------------------------------------------------- |
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220 // |
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221 CMMAGlobalVolume::CMMAGlobalVolume(CMMAForeground* aForeground) : |
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222 iLevel(KMMAVolumeMaxLevel), |
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223 iForeground(aForeground) |
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224 { |
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225 } |
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226 |
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227 // --------------------------------------------------------------------------- |
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228 // CMMAGlobalVolume::ConstructL |
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229 // --------------------------------------------------------------------------- |
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230 // |
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231 void CMMAGlobalVolume::ConstructL() |
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232 { |
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233 iVolumeKeysListener = CMMAVolumeKeysListener::NewL(this); |
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234 // TO-DO remove TRAP_IGNORE |
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235 // TRAP_IGNORE(err,iSettingsStore = CRepository::NewL(KCRUidMobileMedia)); |
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236 |
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237 // Get level from the settings store |
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238 //User::LeaveIfError(iSettingsStore->Get(KMobileMediaVolumeLevel, iLevel)); |
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239 } |
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240 |
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241 // End of file |
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