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1 /* |
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2 * Copyright (c) 2006, 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: This class parses the dps xml script. |
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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 <e32debug.h> |
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20 #include "dpsxmlparser.h" |
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21 #include "dpsconst.h" |
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22 #include "pictbridge.h" |
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23 #include "dpsxmlstring.h" |
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24 |
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25 #ifdef _DEBUG |
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26 # define IF_DEBUG(t) {RDebug::t;} |
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27 # define PRINT_DES(t)\ |
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28 {TBuf<KMaxArgLen> _buf; _buf.Copy(t);RDebug::Print(_L("---%S"), &_buf);} |
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29 #else |
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30 # define IF_DEBUG(t) |
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31 # define PRINT_DES(t) |
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32 #endif |
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33 |
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34 // --------------------------------------------------------------------------- |
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35 // |
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36 // --------------------------------------------------------------------------- |
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37 // |
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38 CDpsXmlParser* CDpsXmlParser::NewL(CDpsEngine* aEngine) |
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39 { |
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40 IF_DEBUG(Print(_L("CDpsXmlParser::NewL"))); |
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41 CDpsXmlParser* self = new (ELeave) CDpsXmlParser(aEngine); |
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42 return self; |
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43 } |
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44 |
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45 // --------------------------------------------------------------------------- |
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46 // |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 CDpsXmlParser::~CDpsXmlParser() |
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50 { |
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51 IF_DEBUG(Print(_L(">>>~CDpsXmlParser"))); |
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52 iDpsArgs.Close(); |
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53 __IF_DEBUG(Print(_L("<<<~CDpsXmlParser"))); |
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54 } |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // |
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58 // --------------------------------------------------------------------------- |
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59 // |
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60 CDpsXmlParser::CDpsXmlParser(CDpsEngine* aEngine) : iEngine(aEngine) |
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61 { |
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62 IF_DEBUG(Print(_L(">>>CDpsXmlParser::Ctor"))); |
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63 Reset(); |
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64 IF_DEBUG(Print(_L("<<<CDpsXmlParser::Ctor"))); |
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65 } |
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66 |
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67 // --------------------------------------------------------------------------- |
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68 // |
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69 // --------------------------------------------------------------------------- |
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70 // |
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71 void CDpsXmlParser::OnStartDocumentL( |
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72 const RDocumentParameters& /*aDocParam*/, TInt aErrorCode) |
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73 { |
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74 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnStartDocumentL"))); |
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75 if (aErrorCode != KErrNone) |
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76 { |
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77 IF_DEBUG(Print(_L("---, error code is %d"), aErrorCode)); |
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78 User::Leave(aErrorCode); |
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79 } |
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80 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnStartDocumentL"))); |
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81 } |
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82 |
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83 // --------------------------------------------------------------------------- |
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84 // |
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85 // --------------------------------------------------------------------------- |
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86 // |
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87 void CDpsXmlParser::OnEndDocumentL(TInt aErrorCode) |
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88 { |
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89 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnEndDocumentL"))); |
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90 if (aErrorCode != KErrNone) |
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91 { |
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92 IF_DEBUG(Print(_L("---, error code is %d"), aErrorCode)); |
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93 User::Leave(aErrorCode); |
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94 } |
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95 |
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96 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnEndDocumentL"))); |
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97 } |
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98 |
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99 // --------------------------------------------------------------------------- |
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100 // |
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101 // --------------------------------------------------------------------------- |
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102 // |
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103 void CDpsXmlParser::OnStartElementL(const RTagInfo& aElement, |
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104 const RAttributeArray& aAttributes, |
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105 TInt aErrCode) |
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106 { |
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107 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnStartElementL"))); |
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108 |
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109 if (aErrCode != KErrNone) |
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110 { |
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111 IF_DEBUG(Print(_L("---, error code is %d"), aErrCode)); |
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112 User::Leave(aErrCode); |
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113 } |
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114 if (aAttributes.Count() > 1) |
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115 { |
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116 IF_DEBUG(Print(_L("---cannot have more than one attribute!"))); |
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117 User::Leave(KErrArgument); |
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118 } |
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119 |
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120 // Gets the name of the tag |
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121 const TDesC8& name = aElement.LocalName().DesC(); |
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122 |
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123 IF_DEBUG(Print(_L("---Start"))); PRINT_DES(name); |
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124 |
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125 //Checks the element |
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126 // this is the first layer <dps> |
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127 if (!name.Compare(KDpsXml)) |
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128 { |
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129 iAction = EDpsXmlStart; |
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130 } |
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131 // this is the second layer <input|output> |
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132 else if (!name.Compare(KDpsXmlOutput)) |
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133 { |
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134 iAction = EDpsXmlOutput; |
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135 } |
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136 else if (!name.Compare(KDpsXmlInput)) |
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137 { |
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138 // operation and event cannot be distiguised here |
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139 iAction = EDpsXmlInput; |
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140 } |
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141 // this is the third layer <operation|event|result> |
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142 else if (iAction == EDpsXmlOutput && !name.Compare(KDpsXmlResult)) |
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143 { |
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144 // output must be result |
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145 iAction = EDpsXmlResult; |
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146 } |
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147 else if (iAction == EDpsXmlInput && |
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148 (!name.Compare(iEngine->DpsParameters()->iDpsEventStrings[0]) || |
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149 !name.Compare(iEngine->DpsParameters()->iDpsEventStrings[1]))) |
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150 { |
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151 if (!name.Compare(iEngine->DpsParameters()->iDpsEventStrings[0])) |
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152 { |
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153 iDpsEvent = EDpsEvtNotifyJobStatus; |
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154 } |
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155 else |
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156 { |
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157 iDpsEvent = EDpsEvtNotifyDeviceStatus; |
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158 } |
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159 iAction = EDpsXmlEvent; |
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160 } |
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161 else if (iAction == EDpsXmlInput || iAction == EDpsXmlResult) |
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162 { |
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163 iAction = EDpsXmlOperation; |
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164 for (TInt i= 0; i < EDpsOpMax-1; i++) //i=0 as AppendL() method adds item on first free position in array |
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165 { |
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166 if (!name.Compare(iEngine->DpsParameters()->iDpsOperationStrings[i])) |
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167 { |
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168 IF_DEBUG(Print(_L("---found the operation"))); |
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169 PRINT_DES(name); |
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170 iDpsOperation = (TDpsOperation)(i+1);// i+1 to by pass first operation EDpsOpEmpty in enum which is not added to array |
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171 break; |
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172 } |
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173 } |
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174 } |
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175 |
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176 // below is the fourth layer, e.g. the argument list/element. there |
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177 // could be many arugments, but only one element |
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178 else if (iAction == EDpsXmlOperation || iAction == EDpsXmlEvent) |
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179 { |
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180 // only element in output is capability |
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181 if (!name.Compare(iEngine->DpsParameters()->iDpsElementStrings[0])) |
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182 { |
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183 IF_DEBUG(Print(_L("---the element is"))); |
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184 PRINT_DES(name); |
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185 iElement = EDpsCapability; |
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186 } |
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187 else |
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188 { |
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189 for (TInt i = 0; i < EDpsArgMax; i++) |
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190 { |
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191 if (!name.Compare(iEngine->DpsParameters()->iDpsArgStrings[i])) |
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192 { |
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193 IF_DEBUG(Print(_L("---the argument is "))); |
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194 PRINT_DES(name); |
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195 TDpsArg arg; |
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196 arg.iElement = (TDpsArgument)i; |
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197 arg.iContent.Copy(_L("")); |
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198 iDpsArgs.Append(arg); |
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199 break; |
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200 } |
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201 } |
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202 } |
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203 |
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204 } |
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205 else |
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206 { |
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207 // something wrong |
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208 IF_DEBUG(Print(_L("--- non-PB element! %S"), &name)); |
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209 User::Leave(KErrNotSupported); |
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210 } |
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211 if (aAttributes.Count() == 1) |
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212 { |
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213 ParseAttributesL(aAttributes, name); |
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214 } |
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215 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnStartElementL"))); |
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216 } |
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217 |
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218 // --------------------------------------------------------------------------- |
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219 // |
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220 // --------------------------------------------------------------------------- |
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221 // |
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222 void CDpsXmlParser::ParseAttributesL(const RAttributeArray& aAttributes, |
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223 const TDesC8& tag) |
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224 { |
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225 // element |
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226 const TDesC8& name = aAttributes[0].Attribute().LocalName().DesC(); |
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227 // only "layouts" and "paperTypes" have attributes |
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228 if (tag.Compare(KDpsXmlPaperTypes) && tag.Compare(KDpsXmlLayouts)) |
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229 { |
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230 // error |
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231 IF_DEBUG(Print(_L("--- this tag have no attribute"))); |
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232 PRINT_DES(name); |
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233 User::Leave(KErrArgument); |
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234 } |
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235 // the element of the attributes must be "paperSize" |
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236 if (name.Compare(KDpsXmlPaperSize)) |
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237 { |
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238 // error |
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239 IF_DEBUG(Print(_L("--- wrong attribute"))) |
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240 PRINT_DES(name); |
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241 User::Leave(KErrArgument); |
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242 } |
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243 // value |
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244 HBufC8* value = aAttributes[0].Value().DesC().AllocLC(); |
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245 TUint32 result; |
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246 TLex8 converter(*value); |
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247 TInt error = converter.Val(result, EHex); |
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248 if (error != KErrNone) |
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249 { |
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250 IF_DEBUG(Print(_L("--- convert error %d"), error)); |
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251 User::Leave(error); |
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252 } |
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253 iAttrib = result >> KShiftLength; |
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254 CleanupStack::PopAndDestroy(value); |
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255 IF_DEBUG(Print(_L("--- attribte value %x"), result)); |
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256 |
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257 } |
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258 |
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259 // --------------------------------------------------------------------------- |
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260 // |
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261 // --------------------------------------------------------------------------- |
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262 // |
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263 void CDpsXmlParser::OnEndElementL(const RTagInfo& aElement, |
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264 TInt aErrorCode) |
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265 { |
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266 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnEndElementL"))); |
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267 |
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268 if (aErrorCode != KErrNone) |
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269 { |
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270 IF_DEBUG(Print(_L("--- error code is %d"), aErrorCode)); |
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271 User::Leave(aErrorCode); |
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272 } |
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273 |
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274 // Get the name of the tag |
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275 const TDesC8& name = aElement.LocalName().DesC(); |
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276 PRINT_DES(name); |
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277 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnEndElementL"))); |
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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 // --------------------------------------------------------------------------- |
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283 // |
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284 void CDpsXmlParser::OnContentL(const TDesC8& aBytes, TInt aErrorCode) |
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285 { |
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286 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnContentL content is"))); |
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287 PRINT_DES(aBytes); |
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288 |
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289 if (aErrorCode != KErrNone) |
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290 { |
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291 IF_DEBUG(Print(_L("--- error code %d"), aErrorCode)); |
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292 User::Leave(aErrorCode); |
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293 } |
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294 if (aBytes[0] >= KSOH && aBytes[0] <= KSpace) |
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295 { |
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296 IF_DEBUG(Print(_L("the unprintable char %d"), aBytes[0])); |
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297 return; |
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298 } |
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299 // parses the result |
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300 if (iAction == EDpsXmlResult) |
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301 { |
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302 TUint32 value; |
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303 TLex8 converter(aBytes); |
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304 TInt error = converter.Val(value, EHex); |
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305 if (error != KErrNone) |
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306 { |
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307 IF_DEBUG(Print(_L("--- convert error %d"), error)); |
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308 User::Leave(error); |
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309 } |
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310 IF_DEBUG(Print(_L("--- result %x"), value)); |
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311 // we have got the result |
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312 iDpsResult.iMajorCode = |
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313 static_cast<TDpsResultMajorCode>(value >> KShiftLength); |
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314 iDpsResult.iMinorCode = |
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315 static_cast<TDpsResultMinorCode>(value & KDpsMinorMask); |
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316 } |
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317 // gets the argument |
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318 else if (iAction == EDpsXmlOperation || iAction == EDpsXmlEvent) |
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319 { |
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320 iDpsArgs[iDpsArgs.Count() - 1].iContent.Copy(aBytes); |
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321 } |
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322 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnContentL"))); |
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323 } |
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324 |
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325 // --------------------------------------------------------------------------- |
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326 // |
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327 // --------------------------------------------------------------------------- |
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328 // |
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329 void CDpsXmlParser::OnStartPrefixMappingL(const RString& /*aPrefix*/, |
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330 const RString& /*aUri*/, |
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331 TInt aErrorCode) |
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332 { |
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333 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnStartPrefixMappingL"))); |
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334 if (aErrorCode != KErrNone) |
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335 { |
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336 IF_DEBUG(Print(_L("--- error code %d"), aErrorCode)); |
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337 User::Leave(aErrorCode); |
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338 } |
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339 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnStartPrefixMappingL"))); |
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340 } |
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341 |
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342 // --------------------------------------------------------------------------- |
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343 // |
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344 // --------------------------------------------------------------------------- |
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345 // |
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346 void CDpsXmlParser::OnEndPrefixMappingL(const RString& /*aPrefix*/, |
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347 TInt aErrorCode) |
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348 { |
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349 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnEndPrefixMappingL"))); |
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350 if (aErrorCode != KErrNone) |
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351 { |
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352 IF_DEBUG(Print(_L("--- error code %d"), aErrorCode)); |
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353 User::Leave(aErrorCode); |
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354 } |
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355 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnEndPrefixMappingL"))); |
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356 } |
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357 |
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358 // --------------------------------------------------------------------------- |
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359 // |
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360 // --------------------------------------------------------------------------- |
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361 // |
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362 void CDpsXmlParser::OnIgnorableWhiteSpaceL(const TDesC8& /*aBytes*/, |
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363 TInt aErrorCode) |
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364 { |
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365 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnIgnorableWhiteSpaceL"))); |
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366 if (aErrorCode != KErrNone) |
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367 { |
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368 IF_DEBUG(Print(_L("---error code %d"), aErrorCode)); |
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369 User::Leave(aErrorCode); |
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370 } |
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371 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnIgnorableWhiteSpaceL"))); |
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372 } |
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373 |
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374 // --------------------------------------------------------------------------- |
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375 // |
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376 // --------------------------------------------------------------------------- |
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377 // |
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378 void CDpsXmlParser::OnSkippedEntityL(const RString& /*aName*/, |
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379 TInt aErrorCode) |
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380 { |
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381 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnSkippedEntityL"))); |
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382 if (aErrorCode != KErrNone) |
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383 { |
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384 IF_DEBUG(Print(_L("--- error code %d"), aErrorCode)); |
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385 User::Leave(aErrorCode); |
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386 } |
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387 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnSkippedEntityL"))); |
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388 } |
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389 |
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390 // --------------------------------------------------------------------------- |
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391 // |
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392 // --------------------------------------------------------------------------- |
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393 // |
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394 void CDpsXmlParser::OnProcessingInstructionL(const TDesC8& /*aTarget*/, |
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395 const TDesC8& /*aData*/, |
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396 TInt aErrorCode) |
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397 { |
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398 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnProcessingInstructionL"))); |
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399 if (aErrorCode != KErrNone) |
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400 { |
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401 IF_DEBUG(Print(_L("--- error code %d"), aErrorCode)); |
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402 User::Leave(aErrorCode); |
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403 } |
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404 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnProcessingInstructionL"))); |
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405 } |
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406 |
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407 // --------------------------------------------------------------------------- |
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408 // |
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409 // --------------------------------------------------------------------------- |
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410 // |
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411 void CDpsXmlParser::OnError(TInt aErrorCode) |
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412 { |
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413 IF_DEBUG(Print(_L(">>>CDpsXmlParser::OnError()"))); |
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414 if (aErrorCode != KErrNone) |
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415 { |
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416 IF_DEBUG(Print(_L("---error code %d"), aErrorCode)); |
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417 } |
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418 IF_DEBUG(Print(_L("<<<CDpsXmlParser::OnError()"))); |
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419 } |
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420 |
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421 // --------------------------------------------------------------------------- |
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422 // |
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423 // --------------------------------------------------------------------------- |
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424 // |
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425 |
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426 TAny* CDpsXmlParser::GetExtendedInterface(const TInt32 aUid) |
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427 { |
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428 return aUid == MDpsExtensionHandler::EInterfaceUid ? |
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429 static_cast<MDpsExtensionHandler*>(this) : 0; |
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430 } |
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431 |
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432 // --------------------------------------------------------------------------- |
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433 // |
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434 // --------------------------------------------------------------------------- |
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435 // |
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436 void CDpsXmlParser::Reset() |
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437 { |
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438 iDpsArgs.Reset(); |
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439 iAction = EDpsXmlEmpty; |
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440 iDpsEvent = EDpsEvtEmpty; |
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441 iDpsOperation = EDpsOpEmpty; |
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442 iElement = EDpsEleEmpty; |
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443 iAttrib = 0; |
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444 } |
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445 |