annotate Lib/IMPL/DOM/Node.pm @ 278:4ddb27ff4a0b

core refactoring
author cin
date Mon, 04 Feb 2013 02:10:37 +0400
parents 6253872024a4
children c6d0f889ef87
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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::Object::List;
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8 use IMPL::Class::Property;
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9 use Scalar::Util qw(weaken);
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10
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11 use IMPL::Exception;
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12
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13 BEGIN {
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14 public _direct property nodeName => prop_get;
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15 public _direct property document => prop_get;
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16 public _direct property isComplex => { get => \&_getIsComplex } ;
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17 public _direct property nodeValue => prop_all;
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18 public _direct property childNodes => { get => \&_getChildNodes }; # prop_list
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19 public _direct property parentNode => prop_get | owner_set;
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20 public _direct property schema => prop_get | owner_set;
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21 public _direct property schemaSource => prop_get | owner_set;
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22 private _direct property _propertyMap => prop_all ;
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23
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24 }
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25
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26 our %Axes = (
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27 parent => \&selectParent,
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28 siblings => \&selectSiblings,
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29 child => \&childNodes,
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30 document => \&selectDocument,
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31 ancestor => \&selectAncestors,
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32 descendant => \&selectDescendant
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33 );
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34
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35 sub CTOR {
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36 my ($this,%args) = @_;
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37
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38 $this->{$nodeName} = delete $args{nodeName} or die new IMPL::InvalidArgumentException("A name is required");
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39 $this->{$nodeValue} = delete $args{nodeValue} if exists $args{nodeValue};
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40 if ( exists $args{document} ) {
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41 $this->{$document} = delete $args{document};
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42 weaken($this->{$document});
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43 }
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44
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45 while ( my ($key,$value) = each %args ) {
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46 $this->nodeProperty($key,$value);
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47 }
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48 }
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49
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50 sub insertNode {
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51 my ($this,$node,$pos) = @_;
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52
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53 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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54
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55 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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56
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57 $this->childNodes->InsertAt($pos,$node);
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58
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59 $node->_setParent( $this );
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60
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61 return $node;
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62 }
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63
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64 sub appendChild {
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65 my ($this,$node) = @_;
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66
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67 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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68
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69 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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70
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71 my $children = $this->childNodes;
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72 $children->Append($node);
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73
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74 $node->_setParent( $this );
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75
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76 return $node;
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77 }
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78
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79 sub appendNode {
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80 goto &appendChild;
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81 }
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82
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83 sub appendRange {
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84 my ($this,@range) = @_;
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85
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86 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if grep $_ == $this, @range;
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87
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88 foreach my $node (@range) {
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89 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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90 $node->_setParent( $this );
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91 }
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92
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93 $this->childNodes->Append(@range);
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94
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95 return $this;
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96 }
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97
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98 sub _getChildNodes {
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99 my ($this) = @_;
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100
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101 $this->{$childNodes} = new IMPL::Object::List() unless $this->{$childNodes};
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102 return wantarray ? @{ $this->{$childNodes} } : $this->{$childNodes};
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103 }
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104
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105 sub childNodesRef {
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106 my ($this) = @_;
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107 return scalar $this->_getChildNodes;
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108 }
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109
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110 sub removeNode {
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111 my ($this,$node) = @_;
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112
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113 if ($this == $node->{$parentNode}) {
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114 $this->childNodes->RemoveItem($node);
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115 $node->_setParent(undef);
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116 return $node;
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117 } else {
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118 die new IMPL::InvalidOperationException("The specified node isn't belong to this node");
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119 }
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120 }
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121
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122 sub replaceNodeAt {
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123 my ($this,$index,$node) = @_;
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124
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125 my $nodeOld = $this->childNodes->[$index];
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126
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127 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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128
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129 # unlink node from previous parent
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130 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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131
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132 # replace (or set) old node
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133 $this->childNodes->[$index] = $node;
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134
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135 # set new parent
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136 $node->_setParent( $this );
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137
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138 # unlink old node if we have one
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139 $nodeOld->_setParent(undef) if $nodeOld;
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140
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141 # return old node
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142 return $nodeOld;
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143 }
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144
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145 sub removeAt {
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146 my ($this,$pos) = @_;
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147
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148 if ( my $node = $this->childNodes->RemoveAt($pos) ) {
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149 $node->_setParent(undef);
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150 return $node;
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151 } else {
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152 return undef;
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153 }
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154 }
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155
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156 sub removeLast {
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157 my ($this) = @_;
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158
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159 if ( my $node = $this->{$childNodes} ? $this->{$childNodes}->RemoveLast() : undef) {
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160 $node->_setParent(undef);
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161 return $node;
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162 } else {
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163 return undef;
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164 }
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165 }
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166
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167 sub removeSelected {
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168 my ($this,$query) = @_;
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169
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170 my @newSet;
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171 my @result;
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172
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173 if (ref $query eq 'CODE') {
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174 &$query($_) ? push @result, $_ : push @newSet, $_ foreach @{$this->childNodes};
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175 } elsif (defined $query) {
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176 $_->nodeName eq $query ? push @result, $_ : push @newSet, $_ foreach @{$this->childNodes};
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177 } else {
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178 my $children = $this->childNodes;
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179 $_->_setParent(undef) foreach @$children;
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180 delete $this->{$childNodes};
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181 return wantarray ? @$children : $children;
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182 }
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183
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184 $_->_setParent(undef) foreach @result;
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185
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186 $this->{$childNodes} = @newSet ? bless \@newSet ,'IMPL::Object::List' : undef;
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187
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188 return wantarray ? @result : \@result;
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189 }
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190
104
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diff changeset
191 sub resolveAxis {
194
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parents: 188
diff changeset
192 my ($this,$axis) = @_;
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193 return $Axes{$axis}->($this)
104
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parents: 102
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194 }
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195
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196 sub selectNodes {
194
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197 my $this = shift;
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diff changeset
198 my $path;
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199
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200 if (@_ == 1) {
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parents: 188
diff changeset
201 $path = $this->translatePath($_[0]);
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parents: 188
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202 } else {
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203 $path = [@_];
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204 }
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205
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206 my @set = ($this);
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207
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208 while (@$path) {
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209 my $query = shift @$path;
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210 @set = map $_->selectNodesAxis($query), @set;
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211 }
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212
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213 return wantarray ? @set : \@set;
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214 }
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215
113
7b14e0122b79 Updated PostToDOM transformation
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216 sub selectSingleNode {
194
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parents: 188
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217 my $this = shift;
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218 my @result = $this->selectNodes(@_);
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219 return $result[0];
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220 }
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221
109
ddf0f037d460 IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
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222 sub selectNodesRef {
194
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223 my $this = shift;
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224
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225 my @result = $this->selectNodes(@_);
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226 return \@result;
109
ddf0f037d460 IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
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227 }
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228
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229 sub translatePath {
194
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230 my ($this,$path) = @_;
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231
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232 # TODO: Move path compilation here from IMPL::DOM::Schema::Validator::Compare
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233 return [$path];
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234 }
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235
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236 sub selectNodesAxis {
194
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237 my ($this,$query,$axis) = @_;
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238
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239 $axis ||= 'child';
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240
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241 die new IMPL::InvalidOperationException('Unknown axis',$axis) unless exists $Axes{$axis};
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242
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243 my $nodes = $this->resolveAxis($axis);
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244
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245 my @result;
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246
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247 if (ref $query eq 'CODE') {
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248 @result = grep &$query($_), @{$nodes};
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249 } elsif (ref $query eq 'ARRAY' ) {
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250 my %keys = map (($_,1),@$query);
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251 @result = grep $keys{$_->nodeName}, @{$nodes};
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252 } elsif (ref $query eq 'HASH') {
194
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253 while( my ($axis,$filter) = each %$query ) {
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254 push @result, $this->selectNodesAxis($filter,$axis);
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255 }
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256 } elsif (defined $query) {
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257 @result = grep $_->nodeName eq $query, @{$nodes};
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258 } else {
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259 return wantarray ? @{$nodes} : $nodes;
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260 }
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261
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262 return wantarray ? @result : \@result;
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263 }
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264
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265 sub selectParent {
194
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266 my ($this) = @_;
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267
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268 if ($this->parentNode) {
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269 return wantarray ? $this->parentNode : [$this->parentNode];
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270 } else {
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271 return wantarray ? () : [];
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272 }
104
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273 }
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274
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275 sub selectSiblings {
194
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276 my ($this) = @_;
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277
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278 if ($this->parentNode) {
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279 return $this->parentNode->selectNodes( sub { $_ != $this } );
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280 } else {
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281 return wantarray ? () : [];
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diff changeset
282 }
104
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283 }
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284
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285 sub selectDocument {
194
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286 my ($this) = @_;
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287
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parents: 188
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288 if ($this->document) {
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289 return wantarray ? $this->document : [$this->document];
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diff changeset
290 } else {
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291 return wantarray ? () : [];
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292 }
104
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diff changeset
293 }
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294
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
295 sub selectDescendant {
194
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parents: 188
diff changeset
296 wantarray ?
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diff changeset
297 map $_->selectAll(), $_[0]->childNodes :
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298 [map $_->selectAll(), $_[0]->childNodes]
148
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299 }
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300
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301 sub selectAll {
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302 map(selectAll($_),@{$_[0]->childNodes}) , $_[0]
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303 }
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304
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
305 sub selectAncestors {
194
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parents: 188
diff changeset
306 my $parent = $_[0]->parentNode;
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parents: 188
diff changeset
307
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diff changeset
308 wantarray ?
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parents: 188
diff changeset
309 ($parent ? ($parent->selectAncestors,$parent) : ()) :
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diff changeset
310 [$parent ? ($parent->selectAncestors,$parent) : ()]
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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311 }
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diff changeset
312
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313 sub firstChild {
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314 @_ >=2 ? $_[0]->replaceNodeAt(0,$_[1]) : $_[0]->childNodes->[0];
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315 }
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316
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diff changeset
317 sub _getIsComplex {
152
1e7f03414b65 DOM: schema improvements
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parents: 148
diff changeset
318 ($_[0]->{$childNodes} and $_[0]->{$childNodes}->Count) ? 1 : 0;
49
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319 }
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320
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321 sub _updateDocRefs {
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322 my ($this) = @_;
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323
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324 # this method is called by the parent node on his children, so we need no to check parent
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325 $this->{$document} = $this->{$parentNode}->document;
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326
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327 # prevent cyclic
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328 weaken($this->{$document}) if $this->{$document};
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diff changeset
329
173
aaab45153411 minor bugfixes
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parents: 165
diff changeset
330 map $_->_updateDocRefs, @{$this->{$childNodes}} if $this->{$childNodes};
49
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331 }
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332
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333 sub _setParent {
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334 my ($this,$node) = @_;
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335
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336
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337 if (($node || 0) != ($this->{$parentNode} || 0)) {
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diff changeset
338 my $newOwner;
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339 if ($node) {
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diff changeset
340 $this->{$parentNode} = $node;
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341 $newOwner = $node->document || 0;
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342
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343 # prevent from creating cyclicreferences
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344 weaken($this->{$parentNode});
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345
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346 } else {
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diff changeset
347 delete $this->{$parentNode};
75
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348
wizard
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349 #keep document
wizard
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diff changeset
350 $newOwner = $this->{$document};
49
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351 }
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352
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353 if (($this->{$document}||0) != $newOwner) {
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diff changeset
354 $this->{$document} = $newOwner;
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diff changeset
355 weaken($this->{$document}) if $newOwner;
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diff changeset
356 $_->_updateDocRefs foreach @{$this->childNodes};
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diff changeset
357 }
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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 sub text {
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diff changeset
362 my ($this) = @_;
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diff changeset
363
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364 join ('', $this->nodeValue || '', map ($_->text || '', @{$this->childNodes}));
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diff changeset
365 }
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366
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diff changeset
367 sub nodeProperty {
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368 my $this = shift;
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diff changeset
369 my $name = shift;
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diff changeset
370
188
029c9610528c Memory leak tests in IMPL::Web::View
cin
parents: 180
diff changeset
371 return unless defined $name;
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parents: 180
diff changeset
372
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
wizard
parents: 116
diff changeset
373 if (my $method = $this->can($name)) {
194
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parents: 188
diff changeset
374 unshift @_,$this;
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diff changeset
375 # use goto to preserve calling context
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diff changeset
376 goto &$method;
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
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parents: 116
diff changeset
377 }
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
378 # dynamic property
49
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diff changeset
379 if (@_) {
194
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diff changeset
380 # set
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diff changeset
381 return $this->{$_propertyMap}{$name} = shift;
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parents: 188
diff changeset
382 } else {
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diff changeset
383 return $this->{$_propertyMap}{$name};
49
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384 }
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385 }
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diff changeset
386
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
wizard
parents: 116
diff changeset
387 sub listProperties {
194
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parents: 188
diff changeset
388 my ($this) = @_;
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389
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6253872024a4 *refactoring IMPL::Class
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390 my %props = map {$_->name, 1} $this->GetMeta(typeof IMPL::Class::PropertyInfo, sub { $_->attributes->{domProperty}},1);
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391
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392 return (keys %props,keys %{$this->{$_propertyMap}});
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393 }
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394
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395 sub save {
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396 my ($this,$writer) = @_;
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397
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398 if ( not ( $this->isComplex or defined $this->{$nodeValue} ) ) {
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399 $writer->emptyTag(
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400 $this->{$nodeName},
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401 map {
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402 $_,
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403 $this->nodeProperty($_)
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404 } grep defined $this->nodeProperty($_), $this->listProperties
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405 );
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406 } else {
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407 $writer->startTag(
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408 $this->{$nodeName},
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409 map {
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410 $_,
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411 $this->nodeProperty($_)
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412 } grep defined $this->nodeProperty($_), $this->listProperties
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413 );
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414 $writer->characters($this->{$nodeValue}) if $this->{$nodeValue};
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415
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416 $_->save($writer) foreach $this->childNodes;
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417
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418 $writer->endTag($this->{$nodeName});
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419 }
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420 }
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421
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422 sub qname {
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423 $_[0]->{$nodeName};
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424 }
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425
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426 sub path {
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427 my ($this) = @_;
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428
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429 if ($this->parentNode) {
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430 return $this->parentNode->path.'.'.$this->qname;
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431 } else {
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432 return $this->qname;
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433 }
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434 }
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435
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436 1;
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437
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438 __END__
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439
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440 =pod
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441
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442 =head1 NAME
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443
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444 C<IMPL::DOM::Node> Элемент DOM модели
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445
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446 =head1 DESCRIPTION
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447
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448 Базовый узел DOM модели. От него можно наследовать другие элементы DOM модели.
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449
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450 =head1 MEMBERS
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451
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452 =head2 PROPERTIES
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453
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454 =over
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455
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456 =item C<[get] nodeName>
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457
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458 Имя узла. Задается при создании.
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459
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460 =item C<[get] document>
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461
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462 Документ к которому принадлежит узел. Задается при поздании узла.
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463
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464 =item C<[get] isComplex>
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465
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466 Определяет является ли узел сложным (тоесть есть ли дети).
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467
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468 C<true> - есть, C<false> - нет.
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469
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470 =item C<[get,set] nodeValue>
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471
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472 Значение узла, обычно простой скаляр, но ничто не мешает туда
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473 устанавливать любое значение.
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474
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475 =item C<[get,list] childNodes>
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476
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477 Список детей, является списокм C<IMPL::Object::List>.
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478
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479 =item C<[get] parentNode>
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480
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481 Ссылка на родительский элемент, если таковой имеется.
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482
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483 =item C<[get] schema>
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484
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485 Ссылка на узел из C<IMPL::DOM::Schema>, представляющий схему данных текущего узла. Может быть C<undef>.
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486
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487 =item C<[get] schema>
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488
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489 Ссылка на узел из C<IMPL::DOM::Schema>, представляющий элемент схемы, объявляющий данный узел. Может быть C<undef>.
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490
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491 Отличается от свойства C<schema> тем, что узел в случае ссылки на тип узла, данной свойство будет содержать
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492 описание ссылки C<IMPL::DOM::Schema::Node>, а свойство C<schema> например будет ссылаться на
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493 C<IMPL::DOM::Schema::ComplexType>.
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494
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495 =back
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496
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497 =head2 METHODS
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498
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499 =cut