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1 /* |
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2 * Copyright (c) 2005 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: |
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15 * Static utility class for manipulating SMIL DOM |
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16 * |
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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 <e32std.h> |
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22 #include <gdi.h> |
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23 |
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24 #include <gmxmldocument.h> |
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25 #include <gmxmlnode.h> |
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26 #include <gmxmlelement.h> |
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27 |
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28 #include <ConformanceChecker.h> |
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29 #include "UniSmilUtils.h" |
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30 |
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31 |
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32 // --------------------------------------------------------- |
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33 // UniSmilUtils::StringToIntValue |
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34 // Convert a descriptor to TInt |
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35 // --------------------------------------------------------- |
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36 // |
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37 TInt UniSmilUtils::StringToIntValue( const TDesC& aString, |
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38 TInt aDefault ) |
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39 { |
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40 TInt value = aDefault; |
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41 if( aString.Length() != 0 ) |
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42 { |
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43 TChar c = aString[0]; |
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44 if( c.IsDigit() ) |
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45 { |
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46 TLex luthor( aString ); |
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47 luthor.Val( value ); |
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48 } |
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49 else |
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50 { |
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51 value = aDefault; |
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52 } |
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53 } |
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54 return value; |
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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 // UniSmilUtils::IsMediaElem |
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60 // --------------------------------------------------------- |
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61 |
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62 TBool UniSmilUtils::IsMediaElem( CMDXMLNode* aNodePtr ) |
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63 { |
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64 TBool ret = EFalse; |
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65 |
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66 if ( aNodePtr->NodeType() == CMDXMLNode::EElementNode && |
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67 UniSmilUtils::MediaElemType( aNodePtr) != EMsgMediaUnknown ) |
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68 { |
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69 ret = ETrue; |
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70 } |
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71 |
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72 return ret; |
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73 } |
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74 |
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75 // --------------------------------------------------------- |
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76 // UniSmilUtils::NextNode |
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77 // --------------------------------------------------------- |
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78 |
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79 CMDXMLNode* UniSmilUtils::NextNode(CMDXMLNode* aRefNode) |
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80 { |
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81 if( aRefNode->FirstChild() ) |
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82 { |
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83 aRefNode = aRefNode->FirstChild(); |
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84 } |
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85 else |
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86 { |
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87 if( aRefNode->NextSibling() ) |
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88 { |
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89 // move to the next sibling if exists |
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90 aRefNode = aRefNode->NextSibling(); |
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91 } |
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92 else |
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93 { |
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94 // No siblings at this level. Go up to parent. |
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95 // might need to go up several layers so WHILE rather than IF |
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96 while ( aRefNode && !aRefNode->NextSibling() ) |
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97 { |
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98 // no siblings, move back to parent. |
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99 aRefNode = aRefNode->ParentNode(); |
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100 } |
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101 |
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102 // Check if we stopped because node has siblings. |
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103 if ( aRefNode && aRefNode->NextSibling() ) |
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104 { |
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105 aRefNode = aRefNode->NextSibling(); |
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106 } |
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107 } |
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108 } |
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109 |
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110 return aRefNode; |
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111 } |
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112 |
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113 // --------------------------------------------------------- |
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114 // UniSmilUtils::RemoveChilds |
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115 // --------------------------------------------------------- |
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116 |
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117 void UniSmilUtils::RemoveChilds( |
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118 CMDXMLNode* aParent ) |
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119 { |
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120 CMDXMLNode* child = NULL; |
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121 |
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122 if ( aParent ) |
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123 { |
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124 child = aParent->FirstChild(); |
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125 } |
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126 |
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127 while ( child ) |
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128 { |
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129 if ( child->HasChildNodes() ) |
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130 { |
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131 UniSmilUtils::RemoveChilds( child ); |
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132 } |
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133 else |
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134 { |
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135 CMDXMLNode* n = child; |
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136 child = child->NextSibling(); |
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137 aParent->RemoveChild( n ); |
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138 delete n; |
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139 } |
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140 } |
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141 } |
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142 |
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143 |
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144 // --------------------------------------------------------- |
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145 // UniSmilUtils::ElemType |
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146 // --------------------------------------------------------- |
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147 |
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148 TMsgMediaType UniSmilUtils::MediaElemType(CMDXMLNode* aNodePtr) |
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149 { |
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150 TMsgMediaType type(EMsgMediaUnknown); |
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151 |
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152 if ( aNodePtr ) |
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153 { |
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154 TPtrC nName; |
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155 nName.Set(aNodePtr->NodeName()); |
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156 |
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157 if ( nName.Compare(KSMILWREleAnimation) == 0 ) |
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158 { |
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159 type = EMsgMediaAnimation; |
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160 } |
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161 else if (nName.Compare(KSMILWREleAudio) == 0 ) |
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162 { |
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163 type = EMsgMediaAudio; |
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164 } |
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165 // SVG included. No special SVG element tag exist. |
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166 else if (nName.Compare(KSMILWREleImg) == 0 ) |
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167 { |
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168 type = EMsgMediaImage; |
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169 } |
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170 else if (nName.Compare(KSMILWREleRef) == 0 ) |
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171 { |
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172 type = EMsgMediaRef; |
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173 } |
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174 else if ( nName.Compare(KSMILWREleText) == 0 ) |
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175 { |
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176 type = EMsgMediaText; |
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177 } |
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178 else if ( nName.Compare(KSMILWREleTextstream) == 0 ) |
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179 { |
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180 type = EMsgMediaTextStream; |
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181 } |
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182 else if ( nName.Compare(KSMILWREleVideo) == 0 ) |
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183 { |
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184 type = EMsgMediaVideo; |
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185 } |
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186 } |
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187 |
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188 return type; |
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189 } |
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190 |
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191 // --------------------------------------------------------- |
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192 // UniSmilUtils::GetId |
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193 // --------------------------------------------------------- |
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194 |
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195 TInt UniSmilUtils::GetId( CMDXMLNode* aNodePtr, TPtrC& aId ) |
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196 { |
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197 TInt ret = KErrNotSupported; |
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198 |
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199 if( aNodePtr && aNodePtr->NodeType() == CMDXMLNode::EElementNode ) |
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200 { |
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201 CMDXMLElement* e =(CMDXMLElement*) aNodePtr; |
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202 if ( e->IsAttributeSpecified( KSMILWRParaId )) |
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203 { |
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204 e->GetAttribute(KSMILWRParaId, aId); |
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205 ret = KErrNone; |
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206 } |
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207 else |
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208 { |
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209 ret = KErrNotFound; |
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210 } |
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211 } |
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212 return ret; |
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213 } |
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214 |
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215 // --------------------------------------------------------- |
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216 // UniSmilUtils::GetMetaTag |
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217 // --------------------------------------------------------- |
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218 |
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219 TInt UniSmilUtils::GetMetaTag( CMDXMLNode* aNodePtr, |
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220 TPtrC& aName, |
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221 TPtrC& aContent ) |
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222 { |
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223 TInt ret = KErrNotFound; |
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224 |
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225 if( aNodePtr && |
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226 aNodePtr->NodeType() == CMDXMLNode::EElementNode && |
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227 aNodePtr->NodeName().Compare(KSMILWREleMeta) == 0) |
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228 { |
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229 CMDXMLElement* e = (CMDXMLElement*) aNodePtr; |
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230 |
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231 if ( e->IsAttributeSpecified( KSMILWRParaName ) && |
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232 e->IsAttributeSpecified( KSMILWRParaContent )) |
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233 { |
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234 if (!e->GetAttribute(KSMILWRParaName, aName) && |
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235 !e->GetAttribute(KSMILWRParaContent, aContent)) |
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236 { |
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237 ret = KErrNone; |
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238 } |
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239 } |
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240 } |
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241 return ret; |
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242 } |
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243 |
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244 // --------------------------------------------------------- |
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245 // UniSmilUtils::RegionId |
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246 // --------------------------------------------------------- |
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247 |
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248 TInt UniSmilUtils::GetRegionId( CMDXMLNode* aNodePtr, TPtrC& aId ) |
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249 { |
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250 TInt ret = KErrNotSupported; |
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251 |
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252 if ( aNodePtr ) |
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253 { |
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254 if ( UniSmilUtils::IsMediaElem( aNodePtr ) ) |
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255 { |
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256 ret = ((CMDXMLElement*)aNodePtr)->GetAttribute(KSMILWRParaRegion, aId); |
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257 } |
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258 } |
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259 return ret; |
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260 } |
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261 |
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262 // --------------------------------------------------------- |
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263 // UniSmilUtils::GetSrc |
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264 // --------------------------------------------------------- |
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265 |
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266 TPtrC UniSmilUtils::GetSrcL( CMDXMLNode* aNodePtr ) |
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267 { |
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268 TPtrC src = TPtrC(); |
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269 if ( aNodePtr ) |
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270 { |
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271 CMDXMLElement* e = (CMDXMLElement*) aNodePtr; |
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272 |
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273 if ( e && e->IsAttributeSpecified(KSMILWRParaSrc) ) |
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274 { |
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275 User::LeaveIfError( e->GetAttribute(KSMILWRParaSrc, src) ); |
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276 } |
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277 else |
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278 { |
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279 // Ok not to have src i.e. no default content. |
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280 } |
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281 } |
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282 |
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283 return src; |
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284 } |
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285 |
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286 |
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287 // --------------------------------------------------------- |
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288 // UniSmilUtils::GetSmilTypeL |
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289 // |
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290 // --------------------------------------------------------- |
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291 TUniSmilType UniSmilUtils::GetSmilTypeL( CMDXMLDocument* aDom ) |
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292 { |
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293 |
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294 if ( UniSmilUtils::IsTemplateSmil( aDom ) ) |
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295 { |
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296 return ETemplateSmil; |
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297 } |
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298 else if ( !aDom || |
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299 !aDom->DocumentElement() || |
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300 !aDom->DocumentElement()->FirstChild() ) |
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301 { |
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302 return ENoSmil; |
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303 } |
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304 else |
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305 { |
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306 CConformanceChecker* checker = CConformanceChecker::NewL(); |
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307 CleanupStack::PushL( checker ); |
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308 TBool isConf( EFalse ); |
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309 |
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310 isConf = checker->Check( aDom, EMmsSmil_v2_0, |
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311 EAllowVideoTag | |
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312 EAllowNonMilliseconds | |
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313 EAllowAllAttributes | |
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314 EAllowMixedRegionDimensions | |
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315 EAllowAnyRegionNames ); |
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316 |
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317 CleanupStack::PopAndDestroy( checker ); |
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318 |
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319 if( isConf ) |
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320 { |
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321 return EMmsSmil; |
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322 } |
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323 |
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324 } |
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325 return E3GPPSmil; |
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326 } |
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327 |
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328 |
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329 // --------------------------------------------------------- |
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330 // UniSmilUtils::IsTemplateSmil |
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331 // |
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332 // --------------------------------------------------------- |
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333 |
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334 TBool UniSmilUtils::IsTemplateSmil( CMDXMLDocument* aDom ) |
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335 { |
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336 TBool ret( EFalse ); |
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337 |
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338 CMDXMLNode* n = aDom->DocumentElement()->FirstChild(); |
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339 |
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340 while ( n ) |
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341 { |
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342 if ( n->NodeName().Compare( KSMILWREleMeta ) == 0) |
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343 { |
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344 TPtrC v1, v2; |
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345 if ( !UniSmilUtils::GetMetaTag( n, v1, v2 ) ) |
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346 { |
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347 if ( v1.Compare( KSMILMetaSmilProfile ) == 0 && |
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348 v2.Compare( KSMILMetaSmilProfileValue ) == 0) |
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349 { |
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350 ret = ETrue; |
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351 break; |
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352 } |
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353 } |
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354 } |
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355 else if ( n->NodeName().Compare( KSMILWREleBody ) == 0 ) |
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356 { |
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357 // Cannot anymore have metatags |
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358 break; |
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359 } |
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360 n = UniSmilUtils::NextNode( n ); |
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361 } |
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362 return ret; |
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363 } |
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364 |
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365 |
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366 // EOF |