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1 // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32\ewsrv\ky_tran.cpp |
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15 // The main code for setting modifiers and translating raw scanCodes into |
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16 // keyCodes. Also traps capture-keys |
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17 // |
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18 // |
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19 |
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20 |
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21 #include <e32svr.h> |
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22 #include <k32keys.h> |
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23 #include <e32keys.h> |
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24 #include <e32uid.h> |
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25 |
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26 enum {EDummy,EKeyDataConv,EKeyDataFunc,EKeyDataSettings}; |
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27 |
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28 EXPORT_C CKeyTranslator* CKeyTranslator::New() |
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29 // |
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30 // Return the actual key translator |
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31 // |
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32 { |
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33 |
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34 CKeyTranslatorX* pS=new CKeyTranslatorX; |
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35 if (pS && pS->Initialise()!=KErrNone) |
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36 { |
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37 delete pS; |
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38 pS=NULL; |
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39 } |
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40 return(pS); |
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41 } |
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42 |
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43 CKeyTranslatorX::CKeyTranslatorX() |
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44 #pragma warning (disable: 4705) |
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45 { |
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46 #pragma warning (default: 4705) |
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47 |
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48 UpdateModifiers(0); |
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49 |
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50 } |
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51 |
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52 TInt CKeyTranslatorX::Initialise() |
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53 { |
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54 return (ChangeKeyData(_L(""))); //Set default keydata |
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55 } |
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56 |
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57 TBool CKeyTranslatorX::currentlyUpperCase(void) |
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58 // |
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59 // Determines whether a letter should be returned as upper case given the |
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60 // current state of the modifiers. This is used for accented characters |
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61 // created, for example, by entering Ctrl-1 "a". Since the keyboard may be |
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62 // configured in different ways (e.g. shift AND capslock together may result |
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63 // in either upper or lower case letters), a dynamic function such as this |
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64 // is necessary |
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65 // |
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66 { |
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67 TInt modifiersAffectingUpperCase=0; |
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68 |
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69 if (iCurModifiers&EModifierCapsLock) |
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70 modifiersAffectingUpperCase|=EModifierCapsLock; |
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71 |
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72 if (iCurModifiers&EModifierShift) |
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73 modifiersAffectingUpperCase|=EModifierShift; |
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74 |
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75 for (TUint i=iConvTable.FirstScanCode(); i<=iConvTable.LastScanCode(); i++) |
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76 { |
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77 TChar ch=iConvTable.Convert(i, modifiersAffectingUpperCase).keyCode; |
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78 if (ch.IsUpper()) |
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79 return ETrue; |
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80 else if (ch.IsLower()) |
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81 return EFalse; |
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82 } |
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83 return EFalse; |
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84 } |
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85 |
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86 TUint CKeyTranslatorX::executeFunctionsAndSetState(TCharExtended aChar) |
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87 // |
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88 // Looks up and carries out the function required for the given |
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89 // key-code/modifiers/state |
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90 // |
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91 { |
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92 TUint keyCode=EKeyNull; |
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93 SFunc modifierFunc=iFuncTable.GetModifierFunc(aChar, iCurModifiers); |
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94 SFuncAndState genFuncAndNewState=iFuncTable.GetGeneralFuncAndState(aChar, iCurModifiers, iCurState, |
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95 iCurCtrlDigits.GetRadix()); |
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96 |
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97 SetModifierState((TEventModifier)modifierFunc.funcParam,(TModifierState)modifierFunc.func); |
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98 |
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99 if(!(iCurModifiers&(EModifierLeftAlt|EModifierRightAlt))) |
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100 iCurModifiers&=~EModifierAlt; |
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101 if(!(iCurModifiers&(EModifierLeftShift|EModifierRightShift))) |
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102 iCurModifiers&=~EModifierShift; |
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103 if(!(iCurModifiers&(EModifierLeftFunc|EModifierRightFunc))) |
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104 iCurModifiers&=~EModifierFunc; |
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105 if(!(iCurModifiers&(EModifierLeftCtrl|EModifierRightCtrl))) |
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106 iCurModifiers&=~EModifierCtrl; |
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107 |
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108 switch (genFuncAndNewState.func) |
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109 { |
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110 case EDoNothing: |
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111 break; |
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112 case EPassKeyThru: |
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113 keyCode=aChar; |
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114 break; |
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115 case EPassSpecialKeyThru: |
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116 iCurCtrlDigits.Reset(); |
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117 keyCode=(currentlyUpperCase())? |
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118 User::UpperCase(genFuncAndNewState.funcParam): |
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119 genFuncAndNewState.funcParam; |
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120 iCurModifiers|=(EModifierSpecial); |
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121 break; |
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122 case EPassCtrlDigitsThru: |
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123 if (iCurCtrlDigits.WithinLimits()) |
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124 { |
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125 keyCode=iCurCtrlDigits.GetDigits(); |
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126 iCurModifiers|=(EModifierSpecial); |
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127 } |
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128 iCurCtrlDigits.Reset(); |
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129 break; |
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130 case EAddOnCtrlDigit: |
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131 iCurCtrlDigits.AppendDigit(aChar, iCurModifiers); |
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132 if (iCurCtrlDigits.Terminated(iCurModifiers) && !iCurCtrlDigits.Error() && iCurCtrlDigits.WithinLimits()) |
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133 { |
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134 keyCode=iCurCtrlDigits.GetDigits(); |
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135 iCurModifiers|=(EModifierSpecial); |
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136 } |
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137 break; |
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138 } |
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139 |
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140 switch (genFuncAndNewState.state) |
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141 { |
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142 case EStateUnchanged: |
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143 break; |
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144 case EStateDerivedFromDigitEntered: |
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145 iCurState=aChar.DigitValue(); |
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146 break; |
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147 case EStateCtrlDigits: |
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148 if (iCurCtrlDigits.Terminated(iCurModifiers) || iCurCtrlDigits.Error()) |
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149 { |
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150 iCurState=EStateNormal; |
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151 iCurCtrlDigits.Reset(); |
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152 } |
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153 else |
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154 iCurState=iCurCtrlDigits.SetStateToCtrlDigits(); |
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155 break; |
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156 default: |
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157 iCurState=genFuncAndNewState.state; |
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158 if (iCurState==EStateNormal) |
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159 iCurCtrlDigits.Reset(); |
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160 break; |
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161 } |
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162 return keyCode; |
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163 } |
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164 |
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165 TInt CKeyTranslatorX::GetModifierState() |
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166 // |
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167 // Return the current modifier state |
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168 // |
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169 { |
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170 |
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171 return(iCurModifiers); |
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172 } |
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173 |
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174 void CKeyTranslatorX::UpdateModifiers(TInt aModifiers) |
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175 // |
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176 // |
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177 // |
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178 { |
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179 |
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180 if(aModifiers == EModifierCancelRotation || aModifiers & KRotationModifiers) |
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181 iCurModifiers &= KPersistentModifiers; // if a Rotation modifier is being updated, only keep persistent modifiers |
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182 else |
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183 iCurModifiers &= KPersistentModifiers|KRotationModifiers; // if not, keep Rotation modifiers also |
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184 iCurModifiers |= aModifiers; |
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185 iCurState = EStateNormal; |
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186 } |
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187 |
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188 |
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189 void CKeyTranslatorX::SetModifierState(TEventModifier aModifier,TModifierState aState) |
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190 // |
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191 // Change a modifier state |
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192 // |
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193 { |
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194 |
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195 switch(aState) |
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196 { |
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197 case ETurnOffModifier: |
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198 iCurModifiers&=~aModifier; |
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199 break; |
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200 case ETurnOnModifier: |
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201 iCurModifiers|=aModifier; |
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202 break; |
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203 case EToggleModifier: |
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204 iCurModifiers^=aModifier; |
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205 } |
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206 } |
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207 |
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208 TBool CKeyTranslatorX::TranslateKey(TUint aScanCode, TBool aKeyUp, |
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209 const CCaptureKeys &aCaptureKeys, TKeyData &aKeyData) |
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210 // |
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211 // The function called for every keyup/keydown converting the aScanCode into a |
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212 // keyCode, carrying out the function specified in the keyboard configuration |
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213 // tables and setting the new state of the keyboard |
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214 // |
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215 { |
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216 |
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217 #if defined(__WINS__) |
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218 // This code extracts the character code if there is one munged |
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219 // with the scan code. Code which does not take advantage of this |
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220 // new facility to pass a character code as part of aScanCode should |
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221 // be unaffected |
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222 // |
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223 // extract the character code |
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224 TUint charCode=(aScanCode&0xFFFF0000)>>16; |
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225 // extract the scan code |
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226 aScanCode&=0x0000FFFF; |
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227 #endif |
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228 |
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229 TUint oldState=iCurState; |
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230 TCharExtended ch; |
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231 |
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232 iCurModifiers&=~(EModifierPureKeycode); |
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233 |
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234 if(aScanCode<ESpecialKeyBase || aScanCode>=(ESpecialKeyBase+ESpecialKeyCount)) |
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235 { |
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236 SConvKeyData convKeyData=(iCurState==EStateNormal)? |
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237 iConvTable.Convert(aScanCode, iCurModifiers): |
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238 iConvTable.ConvertBaseCase(aScanCode, iCurModifiers); |
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239 |
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240 TMaskedModifiers convModifiers; |
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241 convModifiers.iMask=KConvTableSettableModifiers; |
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242 convModifiers.iValue=convKeyData.modifiers; |
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243 |
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244 MergeModifiers(iCurModifiers,convModifiers); |
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245 ch=convKeyData.keyCode; |
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246 } |
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247 else |
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248 ch=aScanCode; |
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249 |
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250 if (aKeyUp) |
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251 iCurModifiers|=(EModifierKeyUp); |
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252 else |
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253 iCurModifiers&=~(EModifierKeyUp); |
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254 |
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255 aKeyData.iKeyCode=executeFunctionsAndSetState(ch); |
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256 |
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257 ch=aKeyData.iKeyCode; |
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258 // prevent modifier keys returning as keypresses |
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259 if(ch.IsModifier()) |
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260 { |
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261 aKeyData.iKeyCode=EKeyNull; |
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262 iCurModifiers&=~EModifierPureKeycode; |
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263 } |
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264 |
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265 TBool ret; |
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266 |
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267 ret=(aKeyData.iKeyCode!=EKeyNull); |
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268 |
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269 #if defined(__WINS__) |
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270 // see comments in __WINS__ block above |
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271 if (charCode) |
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272 { |
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273 if (!(iCurModifiers & KRotationModifiers)) // if rotation modifiers not set we trust the WINDOWS translation |
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274 { |
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275 aKeyData.iKeyCode=charCode; |
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276 iCurModifiers|=EModifierAutorepeatable; |
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277 } |
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278 ret = ETrue; |
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279 } |
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280 #endif |
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281 |
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282 if (aKeyUp |
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283 || (aKeyData.iKeyCode==EKeyNull) |
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284 || (iCurState!=EStateNormal) |
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285 || (iCurState!=oldState)) |
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286 { |
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287 iCurModifiers&=~(EModifierAutorepeatable); |
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288 } |
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289 |
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290 // convert ctrl-space to EKeyNull and clear PureKeycode modifier |
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291 if(aKeyData.iKeyCode==EKeySpace && iCurModifiers&EModifierCtrl) |
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292 { |
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293 aKeyData.iKeyCode=EKeyNull; |
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294 iCurModifiers&=~EModifierPureKeycode; |
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295 } |
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296 |
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297 aKeyData.iModifiers=iCurModifiers; |
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298 |
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299 iCurModifiers&=(KPersistentModifiers|KRotationModifiers); // only keep persistent and rotation modifiers |
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300 |
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301 #if defined(__WINS__) |
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302 if (ret) |
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303 { |
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304 if (charCode && (iCurModifiers & KRotationModifiers)) |
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305 { |
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306 TKeyData keyData = aKeyData; |
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307 keyData.iKeyCode = charCode; |
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308 aCaptureKeys.ProcessCaptureKeys(keyData); |
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309 // Pass the key capture data to the argument |
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310 aKeyData.iApp = keyData.iApp; |
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311 aKeyData.iHandle = keyData.iHandle; |
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312 aKeyData.iIsCaptureKey = keyData.iIsCaptureKey; |
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313 } |
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314 else |
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315 aCaptureKeys.ProcessCaptureKeys(aKeyData); |
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316 } |
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317 #else |
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318 if (ret) |
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319 aCaptureKeys.ProcessCaptureKeys(aKeyData); |
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320 #endif |
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321 |
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322 return(ret); |
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323 } |
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324 // |
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325 // A miscellaneous collection of classes used in key translation |
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326 // |
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327 TCharExtended &TCharExtended::operator=(TUint aChar) |
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328 { |
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329 SetChar(aChar); |
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330 return *this; |
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331 } |
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332 // |
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333 TBool TCharExtended::IsDigitGivenRadix(TRadix aRadix) const |
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334 // Returns true if the character is a digit given the aRadix |
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335 { |
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336 switch (aRadix) |
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337 { |
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338 case EBinary: |
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339 return (TBool)((TUint(*this)==(TUint)'0') || (TUint(*this)==(TUint)'1')); |
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340 case EOctal: |
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341 return (TBool)(IsDigit() && (TUint(*this)!=(TUint)'8') && (TUint(*this)!=(TUint)'9')); |
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342 case EDecimal: |
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343 return IsDigit(); |
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344 case EHex: |
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345 return IsHexDigit(); |
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346 default: |
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347 return EFalse; |
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348 } |
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349 } |
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350 // |
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351 TBool TCharExtended::IsModifier() const |
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352 { |
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353 switch ((TUint)(*this)) |
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354 { |
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355 case EKeyLeftShift: |
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356 case EKeyLeftFunc: |
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357 case EKeyLeftCtrl: |
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358 case EKeyLeftAlt: |
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359 case EKeyRightShift: |
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360 case EKeyRightFunc: |
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361 case EKeyRightCtrl: |
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362 case EKeyRightAlt: |
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363 case EKeyCapsLock: |
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364 case EKeyNumLock: |
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365 case EKeyScrollLock: |
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366 case EKeyKeyboardExtend: |
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367 return ETrue; |
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368 default: |
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369 return EFalse; |
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370 } |
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371 } |
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372 // |
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373 TInt TCharExtended::DigitValue() const |
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374 // Return the numeric value of the character if it is a digit, otherwise an errorcode |
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375 { |
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376 if (IsDigit()) |
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377 |
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378 return (TInt(*this))-48; |
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379 else if ((TInt(*this)>='A') && (TUint(*this)<='F')) |
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380 return (TInt(*this))+10-'A'; |
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381 else if ((TInt(*this)>='a') && (TUint(*this)<='f')) |
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382 return (TInt(*this))+10-'a'; |
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383 else |
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384 return KErrArgument; |
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385 } |
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386 // |
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387 TBool TCharExtended::MatchesPattern(const TKeyCodePattern &aKeyCodePattern, TRadix aRadix) const |
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388 // Return true if the character matches the given pattern |
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389 { |
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390 switch (aKeyCodePattern.iPattern) |
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391 { |
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392 case EAnyKey: |
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393 return ETrue; |
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394 case EAnyAlphaNumeric: |
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395 return IsAlphaDigit(); |
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396 case EAnyAlpha: |
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397 return IsAlpha(); |
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398 case EAnyAlphaLowerCase: |
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399 return IsLower(); |
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400 case EAnyAlphaUpperCase: |
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401 return IsUpper(); |
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402 case EAnyDecimalDigit: |
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403 return IsDigit(); |
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404 case EAnyDigitGivenRadix: |
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405 return IsDigitGivenRadix(aRadix); |
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406 case EAnyModifierKey: |
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407 return IsModifier(); |
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408 case EMatchLeftOrRight: |
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409 return (TBool)(TUint(*this)==aKeyCodePattern.iKeyCode || TUint(*this)==(aKeyCodePattern.iKeyCode+(TUint)1)); |
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410 case EMatchKey: |
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411 return (TBool)(TUint(*this)==aKeyCodePattern.iKeyCode); |
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412 case EMatchKeyCaseInsens: |
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413 return (TBool)(User::LowerCase((TUint)*this)==User::LowerCase(aKeyCodePattern.iKeyCode)); |
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414 default: |
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415 return EFalse; |
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416 } |
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417 } |
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418 // |
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419 typedef void (*TLibFnDataSetting)(TRadix &aRadix,TCtrlDigitsTermination &aCtrlDigitsTermination,TInt &aDefaultCtrlDigitsMaxCount, |
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420 TInt &aMaximumCtrlDigitsMaxCount); |
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421 |
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422 void TCtrlDigits::Update(RLibrary aLibrary) |
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423 { |
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424 |
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425 ((TLibFnDataSetting)aLibrary.Lookup(EKeyDataSettings))(iRadix,iTermination,iMaxCount,iMaximumCtrlDigitsMaxCount); |
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426 iCount=0; |
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427 iErrorFlag=EFalse; |
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428 iDigits=0L; |
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429 }; |
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430 // |
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431 TCtrlDigits::TCtrlDigits() |
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432 { |
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433 }; |
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434 // |
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435 void TCtrlDigits::Reset() |
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436 // Reset to 0 |
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437 { |
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438 |
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439 iCount=0; |
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440 iErrorFlag=EFalse; |
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441 iDigits=0L; |
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442 }; |
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443 // |
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444 void TCtrlDigits::AppendDigit(TUint aKeyCode, TUint aModifiers) |
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445 // Append the given digit to the current digits |
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446 { |
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447 |
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448 TCharExtended ch=aKeyCode; |
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449 iCount++; |
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450 iDigits*=iRadix; |
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451 iDigits+=ch.DigitValue(); |
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452 iErrorFlag=(TBool)(iErrorFlag |
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453 || !ch.IsDigitGivenRadix(iRadix) |
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454 || (iTermination==ETerminationByCtrlUp) |
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455 && ((aModifiers&EModifierCtrl)==0)); |
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456 } |
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457 // |
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458 TBool TCtrlDigits::Terminated(TInt aModifiers) const |
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459 // Return true if the digits have been terminated and are ready to return as a keyCode |
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460 { |
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461 return (TBool)( ((iTermination==ETerminationByCount) && (iCount>=iMaxCount)) |
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462 || ((iTermination==ETerminationByCtrlUp) && (aModifiers&EModifierCtrl)==0) |
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463 || (iCount>=iMaximumCtrlDigitsMaxCount) ); |
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464 } |
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465 // |
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466 TUint TCtrlDigits::SetStateToCtrlDigits() const |
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467 // Return either "EStateCtrlDigitsUntilCount" or "EStateCtrlDigitsUntilCtrlUp" |
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468 // according to the current termination type |
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469 { |
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470 switch (iTermination) |
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471 { |
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472 case ETerminationByCount: |
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473 return EStateCtrlDigitsUntilCount; |
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474 case ETerminationByCtrlUp: |
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475 return EStateCtrlDigitsUntilCtrlUp; |
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476 default: |
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477 return EStateNormal; |
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478 } |
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479 } |
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480 // |
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481 // Two classes that provide operations for accessing the keyboard configuration tables |
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482 // |
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483 typedef void (*TLibFnDataConv)(SConvTable &aConvTable, TUint &aConvTableFirstScanCode,TUint &aConvTableLastScanCode, |
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484 SScanCodeBlockList &aKeypadScanCode,SKeyCodeList &aNonAutorepKeyCodes); |
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485 // |
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486 void TConvTable::Update(RLibrary aLibrary) |
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487 #pragma warning (disable: 4705) |
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488 { |
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489 #pragma warning (default: 4705) |
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490 ((TLibFnDataConv)aLibrary.Lookup(EKeyDataConv))(iConvTable,iFirstScanCode,iLastScanCode,iKeypadScanCodes,iNonAutorepKeyCodes); |
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491 } |
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492 // |
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493 // |
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494 TConvTable::TConvTable() |
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495 #pragma warning (disable: 4705) |
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496 { |
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497 #pragma warning (default: 4705) |
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498 } |
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499 // |
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500 TBool TConvTable::onKeypad(TUint aScanCode) const |
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501 // Return True if the given aScanCode is on the keypad |
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502 { |
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503 for (TUint i=0; i<iKeypadScanCodes.numBlocks; i++) |
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504 if ((aScanCode>=iKeypadScanCodes.pblocks[i].firstScanCode) |
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505 && (aScanCode<=iKeypadScanCodes.pblocks[i].lastScanCode)) |
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506 { |
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507 return ETrue; |
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508 } |
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509 |
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510 return EFalse; |
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511 } |
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512 // |
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513 TBool TConvTable::autorepeatable(TUint aKeyCode) const |
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514 // Return True if the given aKeyCode is autorepeatable |
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515 { |
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516 for (TUint i=0; i<iNonAutorepKeyCodes.numKeyCodes; i++) |
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517 if (aKeyCode==iNonAutorepKeyCodes.pkeyCodes[i]) |
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518 return EFalse; |
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519 |
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520 return ETrue; |
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521 } |
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522 // |
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523 SConvKeyData TConvTable::Convert(TUint aScanCode, const TInt &aModifiers) const |
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524 // Convert the given aScanCode and aModifiers into a keyCode and aModifiers |
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525 { |
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526 SConvKeyData returnVal; |
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527 returnVal.keyCode=EKeyNull; |
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528 returnVal.modifiers=0; |
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529 |
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530 for (TUint i=0; i<iConvTable.numNodes; i++) |
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531 { |
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532 if (MatchesMaskedValue(aModifiers,iConvTable.pnodes[i].maskedModifiers)) |
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533 { |
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534 for (TUint j=0; j<iConvTable.pnodes[i].numSubTables; j++) |
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535 { |
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536 TUint offset=0; |
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537 for (TUint k=0; k<iConvTable.pnodes[i].ppsubTables[j]->scanCodes.numBlocks; k++) |
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538 { |
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539 if ((aScanCode>=iConvTable.pnodes[i].ppsubTables[j]->scanCodes.pblocks[k].firstScanCode) && |
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540 (aScanCode<=iConvTable.pnodes[i].ppsubTables[j]->scanCodes.pblocks[k].lastScanCode)) |
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541 { |
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542 returnVal.keyCode=iConvTable.pnodes[i].ppsubTables[j]->pkeyCode[offset+ |
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543 (aScanCode-iConvTable.pnodes[i].ppsubTables[j]->scanCodes.pblocks[k].firstScanCode)]; |
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544 if (onKeypad(aScanCode)) |
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545 returnVal.modifiers|=(EModifierKeypad); |
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546 if (autorepeatable(returnVal.keyCode)) |
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547 returnVal.modifiers|=(EModifierAutorepeatable); |
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548 |
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549 // check if ctrl key pressed and keycode has not been modified due to ctrl key |
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550 if (aModifiers&EModifierCtrl && !(iConvTable.pnodes[i].maskedModifiers.iMask&EModifierCtrl)) |
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551 returnVal.modifiers|=(EModifierPureKeycode); |
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552 return returnVal; |
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553 } |
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554 else |
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555 offset+=iConvTable.pnodes[i].ppsubTables[j]->scanCodes.pblocks[k].lastScanCode- |
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556 iConvTable.pnodes[i].ppsubTables[j]->scanCodes.pblocks[k].firstScanCode+1; |
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557 } |
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558 } |
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559 } |
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560 } |
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561 return returnVal; |
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562 } |
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563 // |
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564 SConvKeyData TConvTable::ConvertBaseCase(TUint aScanCode, const TInt &aModifiers) const |
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565 // As TConvTable::Convert above, except that all input aModifiers are ignored except for EModifierNumlock |
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566 { |
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567 if (aModifiers&EModifierNumLock) |
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568 return Convert(aScanCode, EModifierNumLock); |
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569 else |
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570 return Convert(aScanCode, 0); |
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571 } |
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572 |
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573 typedef void (*TLibFnDataFunc)(SFuncTables &aFuncTables); |
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574 |
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575 void TFuncTable::Update(RLibrary aLibrary) |
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576 #pragma warning (disable: 4705) |
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577 { |
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578 #pragma warning (default: 4705) |
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579 ((TLibFnDataFunc)aLibrary.Lookup(EKeyDataFunc))(iFuncTables); |
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580 } |
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581 // |
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582 TFuncTable::TFuncTable() |
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583 #pragma warning (disable: 4705) |
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584 { |
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585 #pragma warning (default: 4705) |
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586 } |
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587 // |
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588 SFuncTableEntry TFuncTable::getDefault(const TCharExtended &aChar, const TInt &aModifiers) const |
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589 // Get the default table entry. Should be called if passing through a normal function-table did |
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590 // not trap these parameters. |
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591 { |
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592 TUint i=0; |
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593 while(i<iFuncTables.defaultTable.numEntries) |
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594 { |
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595 if (aChar.MatchesPattern(iFuncTables.defaultTable.pentries[i].keyCodePattern) |
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596 && MatchesMaskedValue(aModifiers,iFuncTables.defaultTable.pentries[i].maskedModifiers)) |
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597 { |
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598 break; |
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599 } |
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600 i++; |
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601 } |
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602 return iFuncTables.defaultTable.pentries[i]; |
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603 } |
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604 |
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605 SFunc TFuncTable::GetModifierFunc(const TCharExtended &aChar, const TInt &aModifiers) const |
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606 // Pass through the modifier table, returning the first table entry matching the given parameters. |
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607 { |
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608 SFuncTableEntry defaultTableEntry=getDefault(aChar, aModifiers); |
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609 SFunc returnVal = { 0, 0, 0 }; |
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610 returnVal.func=defaultTableEntry.funcAndNewState.func; |
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611 returnVal.funcParam=defaultTableEntry.funcAndNewState.funcParam; |
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612 |
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613 for (TUint i=0; i<iFuncTables.modifierTable.numEntries; i++) |
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614 if (aChar.MatchesPattern(iFuncTables.modifierTable.pentries[i].keyCodePattern) |
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615 && MatchesMaskedValue(aModifiers,iFuncTables.modifierTable.pentries[i].maskedModifiers)) |
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616 { |
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617 returnVal.func=iFuncTables.modifierTable.pentries[i].funcAndNewState.func; |
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618 returnVal.funcParam=iFuncTables.modifierTable.pentries[i].funcAndNewState.funcParam; |
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619 return returnVal; |
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620 } |
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621 return returnVal; |
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622 } |
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623 |
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624 SFuncAndState TFuncTable::GetGeneralFuncAndState(const TCharExtended &aChar, const TInt &aModifiers, |
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625 TUint aCurState, TRadix aRadix) const |
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626 // Pass through the table corresponding to the current keyboard state, returning the first |
|
627 // table entry matching the given parameters. |
|
628 { |
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629 for (TUint i=0; i<iFuncTables.pgenFuncTables[aCurState].numEntries; i++) |
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630 if (aChar.MatchesPattern(iFuncTables.pgenFuncTables[aCurState].pentries[i].keyCodePattern, aRadix) |
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631 && MatchesMaskedValue(aModifiers,iFuncTables.pgenFuncTables[aCurState].pentries[i].maskedModifiers)) |
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632 { |
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633 return iFuncTables.pgenFuncTables[aCurState].pentries[i].funcAndNewState; |
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634 } |
|
635 return getDefault(aChar, aModifiers).funcAndNewState; |
|
636 } |
|
637 |
|
638 |
|
639 TInt CKeyTranslatorX::ChangeKeyData(const TDesC& aLibName) |
|
640 // |
|
641 // change keydata |
|
642 // |
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643 { |
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644 |
|
645 if(aLibName.Length()==0) // Back to default KeyData |
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646 { |
|
647 if (!iIsdefaultKeyData) |
|
648 { |
|
649 _LIT(KEkData,"EKDATA.DLL"); |
|
650 TInt r=iDefaultKeyDataLib.Load(KEkData); |
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651 if (r!=KErrNone && r!=KErrAlreadyExists) |
|
652 return r; |
|
653 // Check for valid KeyboardData dll type |
|
654 if(iDefaultKeyDataLib.Type()[2]!=KKeyboardDataUid) |
|
655 { |
|
656 iDefaultKeyDataLib.Close(); |
|
657 return(KErrCorrupt);//Only due to bad rom. |
|
658 } |
|
659 iConvTable.Update(iDefaultKeyDataLib); |
|
660 iCurCtrlDigits.Update(iDefaultKeyDataLib); |
|
661 iFuncTable.Update(iDefaultKeyDataLib); |
|
662 iIsdefaultKeyData = ETrue; // EKeyData status |
|
663 iKeyDataLib.Close(); // Close previously loaded keydata |
|
664 } |
|
665 return(KErrNone); |
|
666 } |
|
667 // |
|
668 RLibrary lib; |
|
669 TInt res=lib.Load(aLibName); |
|
670 if (res!=KErrNone && res!=KErrAlreadyExists) |
|
671 return(res); |
|
672 // |
|
673 // Check for valid KeyboardData dll type |
|
674 // |
|
675 if(lib.Type()[2]!=KKeyboardDataUid) |
|
676 { |
|
677 lib.Close(); |
|
678 return(KErrArgument); |
|
679 } |
|
680 |
|
681 // Close previously loaded keydata |
|
682 if (iIsdefaultKeyData) |
|
683 { |
|
684 iIsdefaultKeyData = EFalse; // EKeyData status |
|
685 iDefaultKeyDataLib.Close(); |
|
686 } |
|
687 else |
|
688 iKeyDataLib.Close(); |
|
689 |
|
690 iKeyDataLib=lib; |
|
691 iConvTable.Update(lib); |
|
692 iCurCtrlDigits.Update(lib); |
|
693 iFuncTable.Update(lib); |
|
694 return(KErrNone); |
|
695 } |
|
696 |