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1 /* |
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2 ============================================================================ |
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3 Name : NPRStoryXmlParser.cpp |
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4 Author : John Kern |
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5 |
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6 Copyright (c) 2009 Symbian Foundation Ltd |
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7 This component and the accompanying materials are made available |
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8 under the terms of the License "Eclipse Public License v1.0" |
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9 which accompanies this distribution, and is available |
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10 at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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11 |
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12 Initial Contributors: |
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13 - Symbian Foundation Ltd - initial contribution |
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14 - Symsource |
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15 |
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16 Contributors: |
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17 - John Kern |
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18 - Symsource |
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19 |
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20 Description : Story xml parser |
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21 ============================================================================ |
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22 */ |
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23 |
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24 #include "NPRDocument.h" |
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25 #include "NPRStoryXmlParser.h" |
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26 #include "NPRStory.h" |
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27 |
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28 CNPRStoryXmlParser* CNPRStoryXmlParser::NewLC(RPointerArray<CNPRStory>* aStoryArray) |
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29 { |
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30 CNPRStoryXmlParser* self = new (ELeave) CNPRStoryXmlParser(aStoryArray); |
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31 CleanupStack::PushL(self); |
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32 self->ConstructL(); |
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33 return self; |
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34 } |
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35 |
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36 CNPRStoryXmlParser* CNPRStoryXmlParser::NewL(RPointerArray<CNPRStory>* aStoryArray) |
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37 { |
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38 CNPRStoryXmlParser* self = CNPRStoryXmlParser::NewLC(aStoryArray); |
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39 CleanupStack::Pop(); // self; |
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40 return self; |
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41 } |
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42 |
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43 CNPRStoryXmlParser::CNPRStoryXmlParser(RPointerArray<CNPRStory>* aStoryArray) |
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44 :iStoryArray(aStoryArray) |
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45 { |
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46 // No implementation required |
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47 } |
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48 |
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49 CNPRStoryXmlParser::~CNPRStoryXmlParser() |
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50 { |
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51 delete iTagName; |
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52 } |
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53 |
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54 |
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55 void CNPRStoryXmlParser::ConstructL() |
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56 { |
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57 iState = ENPRNewsStateIdle; |
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58 } |
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59 |
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60 void CNPRStoryXmlParser::OnStartDocumentL( |
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61 const RDocumentParameters& /* aDocParam */, |
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62 TInt aErrorCode ) |
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63 { |
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64 User::LeaveIfError(aErrorCode); |
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65 } |
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66 |
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67 void CNPRStoryXmlParser::OnEndDocumentL(TInt aErrorCode) |
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68 { |
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69 User::LeaveIfError(aErrorCode); |
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70 } |
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71 |
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72 HBufC* CNPRStoryXmlParser::Copy8To16LC(const TDesC8& aDes) |
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73 { |
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74 HBufC* buf16 = HBufC::NewLC(aDes.Length()); |
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75 buf16->Des().Copy(aDes); |
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76 return buf16; |
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77 } |
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78 |
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79 void CNPRStoryXmlParser::OnStartElementL( |
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80 const RTagInfo& aElement, |
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81 const RAttributeArray& aAttributes, |
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82 TInt aErrorCode ) |
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83 { |
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84 User::LeaveIfError(aErrorCode); |
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85 const TDesC8& tagName = aElement.LocalName().DesC(); |
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86 if (tagName.CompareF(_L8("story"))==0) |
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87 { |
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88 iStory = ETrue; |
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89 if(iTagName) |
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90 { |
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91 delete iTagName; |
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92 } |
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93 iState = ENPRNewsStateStory; |
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94 iCurrentStory = CNPRStory::NewL(); |
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95 // find the story Id attribute |
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96 TInt count = aAttributes.Count(); |
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97 for (TInt i = 0 ; i < count ; i++) |
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98 { |
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99 const RAttribute& attribute = aAttributes[i]; |
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100 const RTagInfo& nameInfo = attribute.Attribute(); |
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101 |
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102 const TDesC8& localName8 = nameInfo.LocalName().DesC(); |
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103 const TDesC8& value8 = attribute.Value().DesC(); |
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104 |
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105 HBufC* localName16 = Copy8To16LC(localName8); |
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106 HBufC* value16 = Copy8To16LC(value8); |
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107 if (localName16->CompareF(_L("id")) == 0 ) |
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108 { |
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109 TLex lex(value16->Des()); |
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110 TInt v = 0; |
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111 lex.Val(v); |
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112 iCurrentStory->SetStoryId( v ); |
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113 } |
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114 CleanupStack::PopAndDestroy(2); // value16 and localName16 |
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115 } |
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116 } |
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117 else if(iStory) |
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118 { |
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119 if(!iTagName && ((iState != ENPRNewsStateText) || (iState != ENPRNewsStateParagraph))) |
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120 { |
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121 iTagName = tagName.AllocL(); |
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122 } |
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123 |
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124 if (iTagName->CompareF(_L8("title"))==0 && iState == ENPRNewsStateStory) |
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125 { |
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126 iState = ENPRNewsStateTitle; |
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127 } |
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128 else if (iTagName->CompareF(_L8("teaser"))==0 && iState == ENPRNewsStateStory) |
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129 { |
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130 iState = ENPRNewsStateTeaser; |
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131 } |
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132 else if (iTagName->CompareF(_L8("thumbnail"))==0 && iState == ENPRNewsStateStory) |
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133 { |
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134 iState = ENPRNewsStateThumbnail; |
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135 } |
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136 else if (iTagName->CompareF(_L8("text"))== 0 && iState == ENPRNewsStateStory) |
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137 { |
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138 iState = ENPRNewsStateText; |
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139 } |
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140 else if (tagName.CompareF(_L8("paragraph"))== 0 && iTagName->CompareF(_L8("text"))==0) |
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141 { |
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142 iState = ENPRNewsStateParagraph; |
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143 } |
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144 else |
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145 { |
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146 iState = ENPRNewsStateIdle; |
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147 } |
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148 } |
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149 } |
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150 |
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151 void CNPRStoryXmlParser::OnEndElementL(const RTagInfo& aElement, TInt aErrorCode ) |
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152 { |
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153 User::LeaveIfError(aErrorCode); |
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154 const TDesC8& tagName = aElement.LocalName().DesC(); |
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155 |
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156 TBool result = EFalse; |
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157 |
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158 if (tagName.CompareF(_L8("story"))== 0 && iState == ENPRNewsStateStory) |
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159 { |
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160 iStory = EFalse; |
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161 iState = ENPRNewsStateIdle; |
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162 iStoryArray->AppendL(iCurrentStory); |
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163 iCurrentStory = NULL; |
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164 } |
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165 else if(iTagName) |
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166 {//TO DO we can have a switch here |
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167 if (iTagName->CompareF(tagName)== 0 && iState == ENPRNewsStateTitle) |
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168 { |
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169 result = ETrue; |
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170 } |
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171 else if (iTagName->CompareF(tagName)== 0 && iState == ENPRNewsStateTeaser) |
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172 { |
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173 result = ETrue; |
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174 } |
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175 else if (iTagName->CompareF(tagName)== 0 && iState == ENPRNewsStateThumbnail) |
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176 { |
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177 result = ETrue; |
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178 } |
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179 else if (iTagName->CompareF(tagName)== 0 && iState == ENPRNewsStateText) |
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180 { |
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181 result = ETrue; |
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182 } |
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183 else if (tagName.CompareF(_L8("paragraph"))== 0 && iTagName->CompareF(_L8("text"))==0) |
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184 { |
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185 iState = ENPRNewsStateText; |
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186 } |
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187 else if (iTagName->CompareF(tagName)== 0 && iState == ENPRNewsStateIdle) |
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188 { |
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189 result = ETrue; |
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190 } |
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191 } |
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192 |
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193 if(result) |
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194 { |
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195 if(iTagName) |
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196 { |
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197 delete iTagName; |
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198 iTagName = NULL; |
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199 } |
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200 iState = ENPRNewsStateStory; |
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201 } |
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202 } |
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203 |
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204 void CNPRStoryXmlParser::OnContentL(const TDesC8& aBytes, TInt aErrorCode) |
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205 { |
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206 User::LeaveIfError(aErrorCode); |
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207 |
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208 switch(iState) |
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209 { |
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210 case ENPRNewsStateTitle: |
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211 { |
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212 iCurrentStory->SetTitleL(aBytes); |
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213 break; |
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214 } |
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215 case ENPRNewsStateTeaser: |
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216 { |
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217 iCurrentStory->SetTeaserL(aBytes); |
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218 break; |
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219 } |
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220 case ENPRNewsStateParagraph: |
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221 { |
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222 iCurrentStory->SetTextL(aBytes); |
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223 break; |
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224 } |
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225 default: |
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226 iState = iState; // for debugging. |
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227 break; |
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228 } |
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229 } |
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230 |
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231 void CNPRStoryXmlParser::OnStartPrefixMappingL( |
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232 const RString& /* aPrefix */, |
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233 const RString& /* aUri */, |
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234 TInt aErrorCode) |
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235 { |
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236 User::LeaveIfError(aErrorCode); |
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237 } |
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238 |
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239 void CNPRStoryXmlParser::OnEndPrefixMappingL(const RString& /* aPrefix */, TInt aErrorCode) |
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240 { |
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241 User::LeaveIfError(aErrorCode); |
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242 } |
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243 |
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244 void CNPRStoryXmlParser::OnIgnorableWhiteSpaceL(const TDesC8& /* aBytes */, TInt /* aErrorCode*/) |
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245 { |
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246 } |
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247 |
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248 void CNPRStoryXmlParser::OnSkippedEntityL(const RString& /* aName */, TInt aErrorCode) |
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249 { |
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250 User::LeaveIfError(aErrorCode); |
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251 } |
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252 |
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253 void CNPRStoryXmlParser::OnProcessingInstructionL( |
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254 const TDesC8& /* aTarget */ , |
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255 const TDesC8& /* aData */ , |
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256 TInt aErrorCode) |
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257 { |
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258 User::LeaveIfError(aErrorCode); |
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259 } |
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260 |
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261 void CNPRStoryXmlParser::OnError(TInt aErrorCode) |
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262 { |
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263 User::LeaveIfError(aErrorCode); |
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264 } |
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265 |
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266 TAny* CNPRStoryXmlParser::GetExtendedInterface(const TInt32 /* aUid */) |
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267 { |
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268 return NULL; |
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269 } |