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1 // Copyright (c) 1999-2009 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 "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 // XmlElement.cpp |
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15 // XML Element class |
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16 // Derived from CTypedNode. Adds functionality |
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17 // to make the use of the node simpler |
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18 // |
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19 // |
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20 |
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21 #include <f32file.h> |
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22 #include <attrlut.h> |
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23 |
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24 #include <xmlelemt.h> |
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25 |
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26 LOCAL_C TBool Compare(TInt aLength,const TText* aStringA,const TDesC& aStringB) |
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27 { |
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28 if(aLength==aStringB.Length()) |
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29 { |
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30 const TText* stringB=aStringB.Ptr(); |
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31 while( STATIC_CAST(TUint, aLength) >= (sizeof(TInt32) / sizeof(TText)) ) |
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32 { |
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33 if(*(TInt32*)stringB!=*(TInt32*)aStringA) |
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34 return EFalse; |
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35 stringB+=(sizeof(TInt32)/sizeof(TText)); |
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36 aStringA+=(sizeof(TInt32)/sizeof(TText)); |
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37 aLength-=(sizeof(TInt32)/sizeof(TText)); |
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38 } |
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39 while(aLength>0) |
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40 { |
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41 if(*stringB++!=*aStringA++) |
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42 return EFalse; |
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43 aLength--; |
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44 } |
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45 return ETrue; |
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46 } |
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47 return EFalse; |
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48 } |
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49 |
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50 |
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51 //------------------------------------------------------------------------- |
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52 |
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53 EXPORT_C void CXmlElement::InsertChildL(TInt aIndexToInsertBefore, CXmlElement* aElement) |
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54 { |
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55 if(!iChildList) |
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56 { |
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57 iChildList = new (ELeave) CArrayPtrFlat<CNode>(KGranularity); |
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58 } |
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59 iChildList->InsertL(aIndexToInsertBefore, aElement); |
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60 } |
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61 |
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62 //------------------------------------------------------------------------- |
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63 |
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64 EXPORT_C const TDesC* CXmlElement::Attribute(const TDesC& aAttributeName) const |
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65 { |
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66 const TInt count = AttributeCount(); |
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67 TInt length=aAttributeName.Length(); |
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68 const TText* stringPtr=aAttributeName.Ptr(); |
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69 for (TInt i = 0; i < count; i++) |
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70 { |
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71 TXmlAttributeType name; |
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72 CBase* att=AttributeByIndex(i,name); |
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73 if (Compare(length,stringPtr,*name)) |
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74 return (TDesC*)((CDataDelete*)att)->Data(); |
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75 } |
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76 |
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77 return NULL; |
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78 } |
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79 |
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80 //------------------------------------------------------------------------- |
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81 |
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82 EXPORT_C void CXmlElement::SetAttributeL(const TDesC& aAttributeName, |
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83 const TDesC& aAttributeValue, |
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84 CAttributeLookupTable& aAttributeLUT) |
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85 { |
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86 TXmlAttributeType type = aAttributeLUT.Des2IDL(aAttributeName); |
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87 |
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88 HBufC* attrValue = aAttributeValue.AllocLC(); |
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89 CDataDelete* attrib = new (ELeave) CDataDelete((HBufC16*)attrValue); |
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90 CleanupStack::Pop(); // attrValue |
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91 CleanupStack::PushL(attrib); |
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92 AddAttributeL(type, attrib); |
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93 CleanupStack::Pop(); // attrib |
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94 } |
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95 |
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96 //------------------------------------------------------------------------- |
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97 |
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98 EXPORT_C void CXmlElement::SetTextL(const TDesC16& aData) |
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99 { |
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100 HBufC* data = aData.AllocLC(); |
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101 CTypedNode<TXmlElementType, TXmlAttributeType>::SetDataL(data); |
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102 CleanupStack::Pop(data); |
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103 } |
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104 |
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105 //------------------------------------------------------------------------- |
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106 |
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107 EXPORT_C void CXmlElement::SetDataItemL(CBase* aDataItem, CAttributeLookupTable& aAttributeLUT) |
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108 { |
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109 __ASSERT_DEBUG(aDataItem, Panic(EXmlElPanicInvalidDataItem)); |
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110 |
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111 TXmlAttributeType type = aAttributeLUT.Des2IDL(KXmlElementDataItemAttributeName); |
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112 CDataItemAttribute* attrib = new (ELeave) CDataItemAttribute; |
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113 |
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114 CleanupStack::PushL(attrib); |
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115 AddAttributeL(type, attrib); |
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116 CleanupStack::Pop(); // attrib |
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117 |
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118 // Take ownership last |
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119 attrib->iDataItem = aDataItem; |
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120 } |
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121 |
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122 //------------------------------------------------------------------------- |
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123 |
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124 EXPORT_C void CXmlElement::DeleteDataItem(CAttributeLookupTable& aAttributeLUT) |
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125 { |
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126 TXmlAttributeType type = NULL; |
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127 TRAPD(err, type = aAttributeLUT.Des2IDL(KXmlElementDataItemAttributeName)); |
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128 __ASSERT_DEBUG(err==KErrNone, Panic(EXmlElPanicInvalidDataItem)); |
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129 if(err==KErrNone) |
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130 { |
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131 // Delete data item |
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132 DeleteAttribute(type); |
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133 } |
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134 } |
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135 |
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136 //------------------------------------------------------------------------- |
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137 |
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138 EXPORT_C CBase* CXmlElement::DataItem() const |
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139 { |
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140 const TInt count = AttributeCount(); |
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141 TPtrC attName(KXmlElementDataItemAttributeName); |
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142 TInt length=attName.Length(); |
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143 const TText* stringPtr=attName.Ptr(); |
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144 for (TInt i = 0; i < count; i++) |
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145 { |
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146 TXmlAttributeType name; |
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147 CBase* att=AttributeByIndex(i,name); |
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148 if (Compare(length,stringPtr,*name)) |
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149 return ((CDataItemAttribute*)att)->iDataItem; |
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150 } |
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151 return NULL; |
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152 } |
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153 |
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154 //------------------------------------------------------------------------- |
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155 |
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156 EXPORT_C TInt CXmlElement::ChildIndex(CXmlElement* aChild) const |
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157 { |
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158 TInt i; |
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159 for( i=0; i < Count(); i++) |
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160 { |
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161 if( Child(i) == aChild ) |
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162 return(i); |
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163 } |
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164 return( -1 ); |
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165 } |
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166 |
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167 //#ifdef _DEBUG |
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168 // Write the name of the class into a debug file |
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169 void CXmlElement::WriteNameL(RFile& aFile, TInt aIndentation) |
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170 { |
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171 // Write line feed |
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172 aFile.Write(_L8("\r\n")); |
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173 |
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174 // Write as many tabs as the current indentation level |
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175 for (TInt i = 0; i < aIndentation; i++) |
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176 { |
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177 aFile.Write(_L8("\t")); |
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178 } |
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179 |
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180 // Write the name of element |
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181 TXmlElementType type = Type(); |
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182 |
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183 if (type) |
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184 { |
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185 // Convert to 8 bit |
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186 HBufC8* type8 = HBufC8::NewL(type->Length()); |
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187 type8->Des().Copy(*type); |
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188 aFile.Write(*type8); |
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189 delete type8; |
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190 } |
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191 else |
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192 aFile.Write(_L8("Error: Type = NULL")); |
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193 |
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194 |
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195 // Write attributes |
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196 const TInt count = AttributeCount(); |
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197 if(count > 0 || Data()) |
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198 { |
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199 aFile.Write(_L8(" (")); |
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200 } |
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201 |
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202 for (TInt a = 0; a < count; a++) |
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203 { |
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204 if(a>0 && count>1) |
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205 { |
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206 aFile.Write(_L8("\", ")); |
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207 } |
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208 TXmlAttributeType type = AttributeTypeByIndex(a); |
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209 // Convert to 8 bit |
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210 HBufC8* type8 = HBufC8::NewL(type->Length()); |
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211 type8->Des().Copy(*type); |
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212 aFile.Write(*type8); |
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213 delete type8; |
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214 |
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215 aFile.Write(_L8(" = \"")); |
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216 |
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217 const TDesC* attrib = Attribute(a); |
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218 HBufC8* attrib8 = HBufC8::NewL(attrib->Length()); |
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219 attrib8->Des().Copy(*attrib); |
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220 aFile.Write(*attrib8); |
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221 delete attrib8; |
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222 } |
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223 |
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224 // Write data |
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225 if (Data()) |
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226 { |
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227 // Data is expected to be a text (for now) |
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228 aFile.Write(_L8("\"")); |
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229 const TDesC* data = (TDesC*)Data(); |
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230 HBufC8* data8 = HBufC8::NewL(data->Length()); |
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231 data8->Des().Copy(*data); |
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232 aFile.Write(*data8); |
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233 delete data8; |
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234 aFile.Write(_L8("\"")); |
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235 } |
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236 |
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237 if(count>0) |
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238 { |
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239 // Write ") |
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240 aFile.Write(_L8("\")")); |
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241 } |
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242 else if(Data()) |
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243 { |
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244 // Write ) |
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245 aFile.Write(_L8(")")); |
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246 } |
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247 } |
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248 |
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249 //------------------------------------------------------------------------- |
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250 // Write name of class in debug file |
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251 void CXmlElement::StartWriteL(RFile& aFile, TInt aIndentation) |
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252 { |
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253 // Write itself |
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254 WriteNameL(aFile, aIndentation); |
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255 |
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256 // Write children with one tab stop more |
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257 aIndentation++; |
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258 const TInt count = Count(); |
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259 for (TInt i = 0; i < count; i++) |
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260 { |
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261 Child(i)->StartWriteL(aFile, aIndentation); |
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262 } |
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263 } |
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264 |
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265 EXPORT_C void CXmlElement::WriteIntoFileL() |
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266 { |
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267 RFs fileSession; |
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268 User::LeaveIfError(fileSession.Connect()); |
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269 CleanupClosePushL(fileSession); |
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270 RFile file2; |
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271 TPtrC filePath; |
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272 filePath.Set( _L("c:\\tree.txt")); |
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273 User::LeaveIfError(file2.Replace( fileSession, filePath , EFileWrite )); |
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274 CleanupClosePushL(file2); |
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275 |
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276 // Write contents |
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277 StartWriteL(file2, 0); |
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278 CleanupStack::PopAndDestroy(2); // fileSession, file2 |
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279 } |
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280 |
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281 //#endif |
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282 #ifndef __WAP_MONOLITHIC__ |
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283 // Its a standalone DLL |
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284 //------------------------------------------------------------------------- |
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285 |
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286 GLDEF_C void Panic(TXmlElementPanic aPanic) |
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287 { |
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288 User::Panic(_L("XML-ELM"),aPanic); |
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289 } |
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290 |
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291 //----------------------------------------------------------------------------- |
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292 // Dlls entry point |
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293 //----------------------------------------------------------------------------- |
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294 |
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295 #ifndef EKA2 |
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296 GLDEF_C TInt E32Dll (TDllReason) |
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297 { |
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298 return KErrNone; |
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299 } |
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300 #endif // EKA2 |
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301 #endif // __WAP_MONOLITHIC__ |
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302 |