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1 /* |
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2 * Copyright (c) 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: Utility class for passing data between controls. |
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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 "gfxtransextension.h" |
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20 |
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21 // ----------------------------------------------------------------------------- |
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22 // ----------------------------------------------------------------------------- |
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23 // |
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24 CGfxTransExtension::TDataEntry::TDataEntry( const TInt aKey, |
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25 const TDesC8* aData ) : |
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26 iKey( aKey ), iData( aData ) |
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27 { |
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28 } |
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29 |
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30 // ----------------------------------------------------------------------------- |
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31 // ----------------------------------------------------------------------------- |
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32 // |
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33 TBool CGfxTransExtension::TDataEntry::SameKey( const TDataEntry& aEntry1, |
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34 const TDataEntry& aEntry2 ) |
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35 { |
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36 return aEntry1.iKey == aEntry2.iKey; |
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37 } |
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38 |
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39 |
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40 // ----------------------------------------------------------------------------- |
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41 // ----------------------------------------------------------------------------- |
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42 // |
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43 CGfxTransExtension::TTransitionObserver::TTransitionObserver( |
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44 const TInt aKey, const TInt aEventType, |
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45 MAknTransitionUtilsObserver* aObserver ) : |
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46 iKey( aKey ), iObserver( aObserver ), iEventType( ( TEvents )aEventType ) |
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47 { |
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48 } |
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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 TBool CGfxTransExtension::TTransitionObserver::SameKey( |
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54 const TTransitionObserver& aObserver1, |
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55 const TTransitionObserver& aObserver2 ) |
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56 { |
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57 return aObserver1.iKey == aObserver2.iKey; |
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58 } |
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59 |
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60 // ----------------------------------------------------------------------------- |
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61 // ----------------------------------------------------------------------------- |
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62 // |
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63 TBool CGfxTransExtension::TTransitionObserver::Equal( |
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64 const TTransitionObserver& aObserver1, |
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65 const TTransitionObserver& aObserver2 ) |
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66 { |
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67 return ( aObserver1.iObserver == aObserver2.iObserver ) && |
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68 ( aObserver1.iEventType == aObserver2.iEventType ); |
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69 } |
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70 |
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71 // ----------------------------------------------------------------------------- |
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72 // ----------------------------------------------------------------------------- |
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73 // |
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74 CGfxTransExtension::~CGfxTransExtension() |
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75 { |
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76 TInt count = iUserData.Count(); |
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77 |
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78 for ( TInt i = 0; i < count; i++ ) |
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79 { |
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80 delete iUserData[i].iData; |
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81 } |
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82 |
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83 iUserData.Reset(); |
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84 iObservers.Reset(); |
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85 }; |
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86 |
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87 /* |
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88 static TInt GetState(TInt aEvent, TInt* aState, TDes8* aParams = NULL); |
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89 |
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90 // FIXME: TDes8 instead of TAny |
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91 static TInt SetData( const TInt aKey, TAny* aData ); |
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92 static TAny* GetData( const TInt aKey ); |
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93 static void RemoveData( const TInt aKey ); |
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94 */ |
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95 |
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96 // ----------------------------------------------------------------------------- |
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97 // ----------------------------------------------------------------------------- |
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98 // |
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99 TInt CGfxTransExtension::AddObserver( MAknTransitionUtilsObserver* aObserver, |
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100 TInt aEvent, |
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101 const TDesC8* aParams ) |
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102 { |
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103 CGfxTransExtension* singleton = |
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104 reinterpret_cast<CGfxTransExtension*>(CCoeEnv::Static( KGfxTransExtensionUid ) ); |
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105 if ( !singleton ) |
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106 { |
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107 return KErrNoMemory; |
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108 } |
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109 |
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110 TInt key = ( TInt )aParams; |
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111 TInt count = singleton->iObservers.Count(); |
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112 TBool exists = EFalse; |
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113 for ( TInt i = 0; i < count; i++ ) |
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114 { |
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115 TTransitionObserver o = singleton->iObservers[i]; |
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116 if ( ( o.iEventType == aEvent ) && ( o.iObserver == aObserver ) ) |
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117 { |
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118 exists = ETrue; |
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119 break; |
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120 } |
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121 } |
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122 |
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123 if ( !exists ) |
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124 { |
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125 TTransitionObserver observer( key, aEvent, aObserver ); |
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126 singleton->iObservers.Append( observer ); |
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127 } |
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128 |
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129 if ( aEvent == EEventControlTransitionFinished ) |
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130 { |
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131 GfxTransEffect::SetTransitionObserver( singleton ); |
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132 singleton->iNumControlTransitionObservers++; |
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133 } |
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134 |
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135 return KErrNone; |
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136 } |
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137 |
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138 // ----------------------------------------------------------------------------- |
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139 // ----------------------------------------------------------------------------- |
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140 // |
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141 TInt CGfxTransExtension::RemoveObserver( |
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142 MAknTransitionUtilsObserver* aObserver, TInt aEvent ) |
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143 { |
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144 CGfxTransExtension* singleton = CGfxTransExtension::Static(); |
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145 if ( !singleton ) |
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146 { |
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147 return KErrNotFound; |
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148 } |
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149 |
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150 TIdentityRelation<TTransitionObserver> identity( TTransitionObserver::Equal ); |
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151 TTransitionObserver tmp( 0, aEvent, aObserver ); |
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152 TInt index = singleton->iObservers.Find( tmp, identity ); |
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153 if ( index != KErrNotFound ) |
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154 { |
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155 singleton->iObservers.Remove( index ); |
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156 if ( aEvent == EEventControlTransitionFinished ) |
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157 { |
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158 singleton->iNumControlTransitionObservers--; |
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159 } |
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160 |
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161 if ( singleton->iNumControlTransitionObservers == 0 ) |
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162 { |
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163 GfxTransEffect::SetTransitionObserver( NULL ); |
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164 } |
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165 |
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166 return KErrNone; |
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167 } |
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168 |
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169 return KErrNotFound; |
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170 } |
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171 |
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172 // ----------------------------------------------------------------------------- |
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173 // ----------------------------------------------------------------------------- |
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174 // |
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175 TInt CGfxTransExtension::GetState(TInt /*aEvent*/, TInt* /*aState*/, TDes8* /*aParams*/ ) |
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176 { |
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177 return 0; |
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178 } |
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179 |
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180 // ----------------------------------------------------------------------------- |
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181 // ----------------------------------------------------------------------------- |
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182 // |
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183 void CGfxTransExtension::TransitionFinished( const CCoeControl* aControl, |
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184 TUint /* aAction */ ) |
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185 { |
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186 CGfxTransExtension* singleton = |
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187 reinterpret_cast<CGfxTransExtension*>(CCoeEnv::Static( KGfxTransExtensionUid ) ); |
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188 if ( !singleton ) |
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189 { |
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190 return; |
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191 } |
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192 |
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193 TInt key = ( TInt )aControl; |
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194 |
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195 TInt count = singleton->iObservers.Count(); |
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196 for ( TInt i = 0; i < count; i++ ) |
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197 { |
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198 if ( singleton->iObservers[i].iKey == key ) |
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199 { |
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200 singleton->iObservers[i].iObserver->AknTransitionCallback( |
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201 EEventControlTransitionFinished, 0, ( const TDesC8* )aControl ); |
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202 } |
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203 } |
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204 } |
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205 |
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206 // ----------------------------------------------------------------------------- |
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207 // ----------------------------------------------------------------------------- |
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208 // |
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209 void CGfxTransExtension::RemoveData( const TInt aKey ) |
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210 { |
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211 CGfxTransExtension* singleton = CGfxTransExtension::Static(); |
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212 if ( !singleton ) |
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213 { |
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214 return; |
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215 } |
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216 |
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217 // Find the data |
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218 TIdentityRelation<TDataEntry> identity( TDataEntry::SameKey ); |
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219 TDataEntry tmp( aKey, NULL ); |
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220 TInt index = singleton->iUserData.Find( tmp, identity ); |
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221 if ( index != KErrNotFound ) |
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222 { |
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223 delete singleton->iUserData[index].iData; |
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224 singleton->iUserData.Remove( index ); |
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225 } |
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226 } |
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227 |
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228 // ----------------------------------------------------------------------------- |
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229 // ----------------------------------------------------------------------------- |
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230 // |
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231 TInt CGfxTransExtension::SetData( const TInt aKey, const TDesC8* aData ) |
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232 { |
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233 CGfxTransExtension* singleton = CGfxTransExtension::Static(); |
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234 if ( !singleton ) |
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235 { |
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236 return KErrNoMemory; |
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237 } |
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238 |
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239 TIdentityRelation<TDataEntry> identity( TDataEntry::SameKey ); |
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240 TDataEntry tmp( aKey, aData ); |
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241 TInt index = singleton->iUserData.Find( tmp, identity ); |
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242 if ( index != KErrNotFound ) |
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243 { |
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244 delete singleton->iUserData[index].iData; |
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245 singleton->iUserData[index].iData = aData; |
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246 } |
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247 else |
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248 { |
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249 singleton->iUserData.Append( tmp ); |
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250 } |
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251 |
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252 return KErrNone; |
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253 } |
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254 |
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255 // ----------------------------------------------------------------------------- |
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256 // ----------------------------------------------------------------------------- |
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257 // |
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258 const TDesC8* CGfxTransExtension::GetData( const TInt aKey ) |
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259 { |
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260 CGfxTransExtension* singleton = CGfxTransExtension::Static(); |
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261 if ( !singleton ) |
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262 { |
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263 return NULL; |
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264 } |
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265 |
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266 TIdentityRelation<TDataEntry> identity( TDataEntry::SameKey ); |
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267 TDataEntry tmp( aKey, NULL ); |
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268 TInt index = singleton->iUserData.Find( tmp, identity ); |
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269 if ( index != KErrNotFound ) |
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270 { |
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271 return singleton->iUserData[index].iData; |
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272 } |
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273 else |
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274 { |
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275 return NULL; |
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276 } |
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277 } |
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278 |
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279 // ----------------------------------------------------------------------------- |
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280 // ----------------------------------------------------------------------------- |
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281 // |
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282 CGfxTransExtension::CGfxTransExtension() : |
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283 CCoeStatic( KGfxTransExtensionUid, -1, CCoeStatic::EThread ), |
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284 iNumControlTransitionObservers( 0 ) |
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285 { |
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286 } |
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287 |
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288 // ----------------------------------------------------------------------------- |
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289 // ----------------------------------------------------------------------------- |
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290 // |
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291 CGfxTransExtension* CGfxTransExtension::Static() |
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292 { |
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293 CGfxTransExtension* singleton = |
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294 reinterpret_cast<CGfxTransExtension*>(CCoeEnv::Static( KGfxTransExtensionUid ) ); |
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295 if ( !singleton ) |
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296 { |
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297 singleton = new CGfxTransExtension(); |
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298 } |
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299 |
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300 return singleton; |
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301 } |