annotate Lib/IMPL/DOM/Node.pm @ 310:0a9d51cf6dfd

*TTView: refactoring, document supports custom classes, layouts are become controls
author sergey
date Fri, 19 Apr 2013 16:39:01 +0400
parents c6d0f889ef87
children 77df11605d3a
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1 package IMPL::DOM::Node;
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2 use strict;
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3 use warnings;
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4
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5 use parent qw(IMPL::Object);
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6
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7 use IMPL::lang;
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8 use IMPL::Object::List;
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9 use IMPL::Class::Property;
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10 use Scalar::Util qw(weaken);
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11
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12 use IMPL::Exception;
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13
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14 BEGIN {
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15 public _direct property nodeName => prop_get;
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16 public _direct property document => prop_get;
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17 public _direct property isComplex => { get => \&_getIsComplex } ;
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18 public _direct property nodeValue => prop_all;
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19 public _direct property childNodes => { get => \&_getChildNodes }; # prop_list
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20 public _direct property parentNode => prop_get | owner_set;
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21 public _direct property schema => prop_get | owner_set;
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22 public _direct property schemaSource => prop_get | owner_set;
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23 private _direct property _propertyMap => prop_all ;
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24
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25 }
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26
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27 our %Axes = (
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28 parent => \&selectParent,
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29 siblings => \&selectSiblings,
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30 child => \&childNodes,
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31 document => \&selectDocument,
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32 ancestor => \&selectAncestors,
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33 descendant => \&selectDescendant
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34 );
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35
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36 sub CTOR {
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37 my ($this,%args) = @_;
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38
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39 $this->{$nodeName} = delete $args{nodeName} or die new IMPL::InvalidArgumentException("A name is required");
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40 $this->{$nodeValue} = delete $args{nodeValue} if exists $args{nodeValue};
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41 if ( exists $args{document} ) {
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42 $this->{$document} = delete $args{document};
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43 weaken($this->{$document});
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44 }
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45
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46 while ( my ($key,$value) = each %args ) {
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47 $this->nodeProperty($key,$value);
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48 }
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49 }
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50
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51 sub insertNode {
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52 my ($this,$node,$pos) = @_;
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53
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54 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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55
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56 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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57
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58 $this->childNodes->InsertAt($pos,$node);
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59
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60 $node->_setParent( $this );
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61
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62 return $node;
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63 }
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64
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65 sub appendChild {
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66 my ($this,$node) = @_;
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67
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68 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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69
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70 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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71
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72 my $children = $this->childNodes;
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73 $children->Append($node);
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74
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75 $node->_setParent( $this );
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76
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77 return $node;
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78 }
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79
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80 sub appendNode {
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81 goto &appendChild;
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82 }
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83
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84 sub appendRange {
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85 my ($this,@range) = @_;
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86
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87 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if grep $_ == $this, @range;
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88
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89 foreach my $node (@range) {
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90 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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91 $node->_setParent( $this );
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92 }
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93
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94 $this->childNodes->Append(@range);
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95
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96 return $this;
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97 }
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98
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99 sub _getChildNodes {
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100 my ($this) = @_;
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101
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102 $this->{$childNodes} = new IMPL::Object::List() unless $this->{$childNodes};
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103 return wantarray ? @{ $this->{$childNodes} } : $this->{$childNodes};
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104 }
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105
109
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106 sub childNodesRef {
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107 my ($this) = @_;
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108 return scalar $this->_getChildNodes;
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109 }
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110
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111 sub removeNode {
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112 my ($this,$node) = @_;
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113
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114 if ($this == $node->{$parentNode}) {
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115 $this->childNodes->RemoveItem($node);
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116 $node->_setParent(undef);
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117 return $node;
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118 } else {
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119 die new IMPL::InvalidOperationException("The specified node isn't belong to this node");
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120 }
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121 }
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122
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123 sub replaceNodeAt {
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124 my ($this,$index,$node) = @_;
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125
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126 my $nodeOld = $this->childNodes->[$index];
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127
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128 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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129
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130 # unlink node from previous parent
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131 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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132
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133 # replace (or set) old node
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134 $this->childNodes->[$index] = $node;
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135
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136 # set new parent
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137 $node->_setParent( $this );
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138
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139 # unlink old node if we have one
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140 $nodeOld->_setParent(undef) if $nodeOld;
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141
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142 # return old node
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143 return $nodeOld;
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144 }
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145
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146 sub removeAt {
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147 my ($this,$pos) = @_;
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148
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149 if ( my $node = $this->childNodes->RemoveAt($pos) ) {
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150 $node->_setParent(undef);
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151 return $node;
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152 } else {
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153 return undef;
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154 }
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155 }
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156
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157 sub removeLast {
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158 my ($this) = @_;
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159
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160 if ( my $node = $this->{$childNodes} ? $this->{$childNodes}->RemoveLast() : undef) {
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161 $node->_setParent(undef);
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162 return $node;
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163 } else {
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164 return undef;
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165 }
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166 }
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167
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168 sub removeSelected {
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169 my ($this,$query) = @_;
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170
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171 my @newSet;
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172 my @result;
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173
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174 if (ref $query eq 'CODE') {
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175 &$query($_) ? push @result, $_ : push @newSet, $_ foreach @{$this->childNodes};
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176 } elsif (defined $query) {
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177 $_->nodeName eq $query ? push @result, $_ : push @newSet, $_ foreach @{$this->childNodes};
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178 } else {
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179 my $children = $this->childNodes;
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180 $_->_setParent(undef) foreach @$children;
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181 delete $this->{$childNodes};
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182 return wantarray ? @$children : $children;
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183 }
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184
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185 $_->_setParent(undef) foreach @result;
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186
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187 $this->{$childNodes} = @newSet ? bless \@newSet ,'IMPL::Object::List' : undef;
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188
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189 return wantarray ? @result : \@result;
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190 }
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191
104
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parents: 102
diff changeset
192 sub resolveAxis {
194
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parents: 188
diff changeset
193 my ($this,$axis) = @_;
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diff changeset
194 return $Axes{$axis}->($this)
104
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parents: 102
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195 }
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196
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197 sub selectNodes {
194
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198 my $this = shift;
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diff changeset
199 my $path;
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diff changeset
200
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parents: 188
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201 if (@_ == 1) {
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parents: 188
diff changeset
202 $path = $this->translatePath($_[0]);
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parents: 188
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203 } else {
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204 $path = [@_];
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205 }
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206
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207 my @set = ($this);
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208
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209 while (@$path) {
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210 my $query = shift @$path;
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211 @set = map $_->selectNodesAxis($query), @set;
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212 }
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213
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214 return wantarray ? @set : \@set;
108
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parents: 104
diff changeset
215 }
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216
113
7b14e0122b79 Updated PostToDOM transformation
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parents: 109
diff changeset
217 sub selectSingleNode {
194
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parents: 188
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218 my $this = shift;
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219 my @result = $this->selectNodes(@_);
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220 return $result[0];
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parents: 109
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221 }
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222
109
ddf0f037d460 IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
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223 sub selectNodesRef {
194
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224 my $this = shift;
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225
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226 my @result = $this->selectNodes(@_);
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227 return \@result;
109
ddf0f037d460 IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
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228 }
ddf0f037d460 IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
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parents: 108
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229
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230 sub translatePath {
194
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231 my ($this,$path) = @_;
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232
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233 # TODO: Move path compilation here from IMPL::DOM::Schema::Validator::Compare
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234 return [$path];
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235 }
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236
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237 sub selectNodesAxis {
194
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238 my ($this,$query,$axis) = @_;
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239
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240 $axis ||= 'child';
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241
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242 die new IMPL::InvalidOperationException('Unknown axis',$axis) unless exists $Axes{$axis};
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243
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244 my $nodes = $this->resolveAxis($axis);
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245
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246 my @result;
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247
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248 if (ref $query eq 'CODE') {
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249 @result = grep &$query($_), @{$nodes};
49
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250 } elsif (ref $query eq 'ARRAY' ) {
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251 my %keys = map (($_,1),@$query);
104
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252 @result = grep $keys{$_->nodeName}, @{$nodes};
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253 } elsif (ref $query eq 'HASH') {
194
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parents: 188
diff changeset
254 while( my ($axis,$filter) = each %$query ) {
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diff changeset
255 push @result, $this->selectNodesAxis($filter,$axis);
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256 }
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257 } elsif (defined $query) {
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258 @result = grep $_->nodeName eq $query, @{$nodes};
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259 } else {
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260 return wantarray ? @{$nodes} : $nodes;
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261 }
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262
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263 return wantarray ? @result : \@result;
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264 }
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265
104
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diff changeset
266 sub selectParent {
194
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diff changeset
267 my ($this) = @_;
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268
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269 if ($this->parentNode) {
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270 return wantarray ? $this->parentNode : [$this->parentNode];
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271 } else {
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272 return wantarray ? () : [];
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273 }
104
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274 }
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275
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diff changeset
276 sub selectSiblings {
194
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277 my ($this) = @_;
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diff changeset
278
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diff changeset
279 if ($this->parentNode) {
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diff changeset
280 return $this->parentNode->selectNodes( sub { $_ != $this } );
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parents: 188
diff changeset
281 } else {
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diff changeset
282 return wantarray ? () : [];
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diff changeset
283 }
104
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parents: 102
diff changeset
284 }
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285
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diff changeset
286 sub selectDocument {
194
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diff changeset
287 my ($this) = @_;
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diff changeset
288
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parents: 188
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289 if ($this->document) {
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diff changeset
290 return wantarray ? $this->document : [$this->document];
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diff changeset
291 } else {
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diff changeset
292 return wantarray ? () : [];
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diff changeset
293 }
104
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diff changeset
294 }
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diff changeset
295
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
296 sub selectDescendant {
194
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parents: 188
diff changeset
297 wantarray ?
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parents: 188
diff changeset
298 map $_->selectAll(), $_[0]->childNodes :
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diff changeset
299 [map $_->selectAll(), $_[0]->childNodes]
148
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diff changeset
300 }
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301
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
302 sub selectAll {
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303 map(selectAll($_),@{$_[0]->childNodes}) , $_[0]
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diff changeset
304 }
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
305
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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parents: 124
diff changeset
306 sub selectAncestors {
194
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parents: 188
diff changeset
307 my $parent = $_[0]->parentNode;
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parents: 188
diff changeset
308
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parents: 188
diff changeset
309 wantarray ?
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parents: 188
diff changeset
310 ($parent ? ($parent->selectAncestors,$parent) : ()) :
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diff changeset
311 [$parent ? ($parent->selectAncestors,$parent) : ()]
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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312 }
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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parents: 124
diff changeset
313
49
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314 sub firstChild {
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315 @_ >=2 ? $_[0]->replaceNodeAt(0,$_[1]) : $_[0]->childNodes->[0];
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316 }
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317
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diff changeset
318 sub _getIsComplex {
152
1e7f03414b65 DOM: schema improvements
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parents: 148
diff changeset
319 ($_[0]->{$childNodes} and $_[0]->{$childNodes}->Count) ? 1 : 0;
49
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diff changeset
320 }
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diff changeset
321
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322 sub _updateDocRefs {
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diff changeset
323 my ($this) = @_;
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diff changeset
324
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diff changeset
325 # this method is called by the parent node on his children, so we need no to check parent
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326 $this->{$document} = $this->{$parentNode}->document;
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diff changeset
327
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328 # prevent cyclic
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329 weaken($this->{$document}) if $this->{$document};
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diff changeset
330
173
aaab45153411 minor bugfixes
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parents: 165
diff changeset
331 map $_->_updateDocRefs, @{$this->{$childNodes}} if $this->{$childNodes};
49
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diff changeset
332 }
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diff changeset
333
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334 sub _setParent {
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diff changeset
335 my ($this,$node) = @_;
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diff changeset
336
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diff changeset
337
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diff changeset
338 if (($node || 0) != ($this->{$parentNode} || 0)) {
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diff changeset
339 my $newOwner;
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340 if ($node) {
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diff changeset
341 $this->{$parentNode} = $node;
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342 $newOwner = $node->document || 0;
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343
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344 # prevent from creating cyclicreferences
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345 weaken($this->{$parentNode});
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346
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347 } else {
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diff changeset
348 delete $this->{$parentNode};
75
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349
wizard
parents: 49
diff changeset
350 #keep document
wizard
parents: 49
diff changeset
351 $newOwner = $this->{$document};
49
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352 }
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diff changeset
353
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diff changeset
354 if (($this->{$document}||0) != $newOwner) {
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diff changeset
355 $this->{$document} = $newOwner;
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diff changeset
356 weaken($this->{$document}) if $newOwner;
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diff changeset
357 $_->_updateDocRefs foreach @{$this->childNodes};
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diff changeset
358 }
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diff changeset
359 }
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diff changeset
360 }
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diff changeset
361
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diff changeset
362 sub text {
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diff changeset
363 my ($this) = @_;
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diff changeset
364
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365 join ('', $this->nodeValue || '', map ($_->text || '', @{$this->childNodes}));
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diff changeset
366 }
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367
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diff changeset
368 sub nodeProperty {
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diff changeset
369 my $this = shift;
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diff changeset
370 my $name = shift;
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diff changeset
371
188
029c9610528c Memory leak tests in IMPL::Web::View
cin
parents: 180
diff changeset
372 return unless defined $name;
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cin
parents: 180
diff changeset
373
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
wizard
parents: 116
diff changeset
374 if (my $method = $this->can($name)) {
194
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parents: 188
diff changeset
375 unshift @_,$this;
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diff changeset
376 # use goto to preserve calling context
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diff changeset
377 goto &$method;
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
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parents: 116
diff changeset
378 }
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
379 # dynamic property
49
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diff changeset
380 if (@_) {
194
4d0e1962161c Replaced tabs with spaces
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parents: 188
diff changeset
381 # set
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diff changeset
382 return $this->{$_propertyMap}{$name} = shift;
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parents: 188
diff changeset
383 } else {
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diff changeset
384 return $this->{$_propertyMap}{$name};
49
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385 }
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386 }
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parents: 38
diff changeset
387
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
wizard
parents: 116
diff changeset
388 sub listProperties {
194
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389 my ($this) = @_;
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390
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391 my %props = map {$_->name, 1} $this->GetMeta(typeof IMPL::Class::PropertyInfo, sub { $_->attributes->{domProperty}},1);
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392
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393 return (keys %props,keys %{$this->{$_propertyMap}});
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394 }
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395
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396 sub save {
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397 my ($this,$writer) = @_;
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398
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399 if ( not ( $this->isComplex or defined $this->{$nodeValue} ) ) {
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400 $writer->emptyTag(
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401 $this->{$nodeName},
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402 map {
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403 $_,
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404 $this->nodeProperty($_)
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405 } grep defined $this->nodeProperty($_), $this->listProperties
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406 );
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407 } else {
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408 $writer->startTag(
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409 $this->{$nodeName},
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410 map {
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411 $_,
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412 $this->nodeProperty($_)
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413 } grep defined $this->nodeProperty($_), $this->listProperties
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414 );
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415 $writer->characters($this->{$nodeValue}) if $this->{$nodeValue};
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416
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417 $_->save($writer) foreach $this->childNodes;
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418
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419 $writer->endTag($this->{$nodeName});
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420 }
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421 }
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422
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423 sub qname {
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424 $_[0]->{$nodeName};
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425 }
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426
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427 sub path {
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428 my ($this) = @_;
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429
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430 if ($this->parentNode) {
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431 return $this->parentNode->path.'.'.$this->qname;
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432 } else {
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433 return $this->qname;
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434 }
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435 }
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436
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437 1;
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438
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439 __END__
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440
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441 =pod
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442
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443 =head1 NAME
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444
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445 C<IMPL::DOM::Node> Элемент DOM модели
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446
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447 =head1 DESCRIPTION
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448
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449 Базовый узел DOM модели. От него можно наследовать другие элементы DOM модели.
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450
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451 =head1 MEMBERS
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452
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453 =head2 PROPERTIES
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454
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455 =over
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456
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457 =item C<[get] nodeName>
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458
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459 Имя узла. Задается при создании.
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460
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461 =item C<[get] document>
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462
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463 Документ к которому принадлежит узел. Задается при поздании узла.
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464
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465 =item C<[get] isComplex>
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466
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467 Определяет является ли узел сложным (тоесть есть ли дети).
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468
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469 C<true> - есть, C<false> - нет.
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470
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471 =item C<[get,set] nodeValue>
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472
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473 Значение узла, обычно простой скаляр, но ничто не мешает туда
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474 устанавливать любое значение.
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475
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476 =item C<[get,list] childNodes>
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477
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478 Список детей, является списокм C<IMPL::Object::List>.
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479
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480 =item C<[get] parentNode>
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481
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482 Ссылка на родительский элемент, если таковой имеется.
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483
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484 =item C<[get] schema>
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485
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486 Ссылка на узел из C<IMPL::DOM::Schema>, представляющий схему данных текущего узла. Может быть C<undef>.
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487
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488 =item C<[get] schema>
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489
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490 Ссылка на узел из C<IMPL::DOM::Schema>, представляющий элемент схемы, объявляющий данный узел. Может быть C<undef>.
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491
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492 Отличается от свойства C<schema> тем, что узел в случае ссылки на тип узла, данной свойство будет содержать
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493 описание ссылки C<IMPL::DOM::Schema::Node>, а свойство C<schema> например будет ссылаться на
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494 C<IMPL::DOM::Schema::ComplexType>.
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495
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496 =back
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497
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498 =head2 METHODS
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499
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500 =cut