Mercurial > pub > Impl
annotate Lib/IMPL/DOM/Node.pm @ 20:267460284fb3
DOM Schema
| author | Sergey |
|---|---|
| date | Tue, 22 Sep 2009 17:17:38 +0400 |
| parents | 818c74b038ae |
| children | fafe56cfcd69 |
| rev | line source |
|---|---|
| 0 | 1 package IMPL::DOM::Node; |
| 2 use strict; | |
| 3 use warnings; | |
| 4 | |
| 11 | 5 use base qw(IMPL::Object); |
| 0 | 6 |
| 4 | 7 use IMPL::Object::List; |
| 0 | 8 use IMPL::Class::Property; |
| 9 use IMPL::Class::Property::Direct; | |
| 10 use Scalar::Util qw(weaken); | |
| 11 | |
| 1 | 12 use IMPL::Exception; |
| 13 | |
| 0 | 14 BEGIN { |
| 4 | 15 public _direct property nodeName => prop_get | owner_set; |
| 16 public _direct property isComplex => { get => \&_getIsComplex } ; | |
| 17 public _direct property nodeValue => prop_all; | |
| 18 public _direct property childNodes => { get => \&_getChildNodes }; | |
| 19 public _direct property parentNode => prop_get ; | |
| 18 | 20 public _direct property rootNode => { get => \&_getRootNode}; |
| 21 private _direct property _propertyMap => prop_all ; | |
| 0 | 22 } |
| 23 | |
| 24 sub CTOR { | |
| 11 | 25 my ($this,%args) = @_; |
| 0 | 26 |
| 11 | 27 $this->nodeName($args{nodeName}) or die new IMPL::InvalidArgumentException("A name is required"); |
| 18 | 28 $this->nodeValue($args{nodeValue}); |
| 0 | 29 } |
| 30 | |
| 31 sub insertNode { | |
| 32 my ($this,$node,$pos) = @_; | |
| 4 | 33 |
| 34 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node; | |
| 35 | |
| 36 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode}); | |
| 37 | |
| 38 $this->childNodes->InsertAt($pos,$node); | |
| 39 | |
| 40 $node->_setParent( $this ); | |
| 41 | |
| 42 return $node; | |
| 43 } | |
| 44 | |
| 14 | 45 sub appendNode { |
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46 my ($this,$node) = @_; |
| 14 | 47 |
| 48 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node; | |
| 49 | |
| 50 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode}); | |
| 51 | |
| 18 | 52 my $children = $this->childNodes; |
| 53 $children->Append($node); | |
| 14 | 54 |
| 55 $node->_setParent( $this ); | |
| 56 | |
| 57 return $node; | |
| 58 } | |
| 59 | |
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60 sub appendRange { |
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61 my ($this,@range) = @_; |
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62 |
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63 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if grep $_ == $this, @range; |
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64 |
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65 foreach my $node (@range) { |
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66 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode}); |
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67 $node->_setParent( $this ); |
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68 } |
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69 |
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70 $this->childNodes->Append(@range); |
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71 |
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72 return $this; |
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73 } |
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74 |
| 4 | 75 sub _getChildNodes { |
| 76 my ($this) = @_; | |
| 77 | |
| 78 $this->{$childNodes} = new IMPL::Object::List() unless $this->{$childNodes}; | |
| 18 | 79 return $this->{$childNodes}; |
| 0 | 80 } |
| 81 | |
| 82 sub removeNode { | |
| 83 my ($this,$node) = @_; | |
| 4 | 84 |
| 85 if ($this == $node->{$parentNode}) { | |
| 86 $this->childNodes->RemoveItem($node); | |
| 18 | 87 $node->_setParent(undef); |
| 88 return $node; | |
| 4 | 89 } else { |
| 90 die new IMPL::InvalidOperationException("The specified node isn't belong to this node"); | |
| 91 } | |
| 0 | 92 } |
| 93 | |
| 7 | 94 sub replaceNodeAt { |
| 95 my ($this,$index,$node) = @_; | |
| 96 | |
| 97 my $nodeOld = $this->childNodes->[$index]; | |
| 98 | |
| 99 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node; | |
| 100 | |
| 101 # unlink node from previous parent | |
| 102 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode}); | |
| 103 | |
| 104 # replace (or set) old node | |
| 105 $this->childNodes->[$index] = $node; | |
| 106 | |
| 18 | 107 # set new parent |
| 7 | 108 $node->_setParent( $this ); |
| 109 | |
| 110 # unlink old node if we have one | |
| 18 | 111 $nodeOld->_setParent(undef) if $nodeOld; |
| 7 | 112 |
| 113 # return old node | |
| 114 return $nodeOld; | |
| 115 } | |
| 116 | |
| 0 | 117 sub removeAt { |
| 118 my ($this,$pos) = @_; | |
| 4 | 119 |
| 120 if ( my $node = $this->childNodes->RemoveAt($pos) ) { | |
| 18 | 121 $node->_setParent(undef); |
| 122 return $node; | |
| 123 } else { | |
| 124 return undef; | |
| 125 } | |
| 126 } | |
| 127 | |
| 128 sub removeLast { | |
| 129 my ($this) = @_; | |
| 130 | |
| 131 if ( my $node = $this->{$childNodes} ? $this->{$childNodes}->RemoveLast() : undef) { | |
| 132 $node->_setParent(undef); | |
| 4 | 133 return $node; |
| 134 } else { | |
| 135 return undef; | |
| 136 } | |
| 0 | 137 } |
| 138 | |
| 18 | 139 sub removeSelected { |
| 140 my ($this,$query) = @_; | |
| 141 | |
| 142 my @newSet; | |
| 143 my @result; | |
| 144 | |
| 145 if (ref $query eq 'CODE') { | |
| 146 &$query($_) ? push @result, $_ : push @newSet, $_ foreach @{$this->childNodes}; | |
| 147 } elsif (defined $query) { | |
| 148 $_->nodeName eq $query ? push @result, $_ : push @newSet, $_ foreach @{$this->childNodes}; | |
| 149 } else { | |
| 150 my $children = $this->childNodes; | |
| 151 $_->_setParent(undef) foreach @$children; | |
| 152 delete $this->{$childNodes}; | |
| 153 return wantarray ? @$children : $children; | |
| 154 } | |
| 155 | |
| 156 $_->_setParent(undef) foreach @result; | |
| 157 | |
| 158 $this->{$childNodes} = @newSet ? bless \@newSet ,'IMPL::Object::List' : undef; | |
| 159 | |
| 160 return wantarray ? @result : \@result; | |
| 161 } | |
| 162 | |
| 0 | 163 sub selectNodes { |
| 14 | 164 my ($this,$query) = @_; |
| 18 | 165 |
| 14 | 166 my @result; |
| 4 | 167 |
| 14 | 168 if (ref $query eq 'CODE') { |
| 169 @result = grep &$query($_), @{$this->childNodes}; | |
| 18 | 170 } elsif (defined $query) { |
| 171 @result = grep $_->nodeName eq $query, @{$this->childNodes}; | |
| 14 | 172 } else { |
| 18 | 173 if (wantarray) { |
| 174 return @{$this->childNodes}; | |
| 175 } else { | |
| 176 @result = $this->childNodes; | |
| 177 return \@result; | |
| 178 } | |
| 14 | 179 } |
| 4 | 180 |
| 181 return wantarray ? @result : \@result; | |
| 0 | 182 } |
| 183 | |
| 7 | 184 sub firstChild { |
| 185 @_ >=2 ? $_[0]->replaceNodeAt(0,$_[1]) : $_[0]->childNodes->[0]; | |
| 186 } | |
| 187 | |
| 4 | 188 sub _getIsComplex { |
| 189 $_[0]->childNodes->Count ? 1 : 0; | |
| 190 } | |
| 191 | |
| 18 | 192 sub _getRootNode { |
| 193 $_[0]->{$rootNode} || $_[0]; | |
| 194 } | |
| 195 | |
| 196 sub _updateRootRefs { | |
| 197 my ($this) = @_; | |
| 198 | |
| 199 if ( my $newRoot = $this->{$parentNode} ? $this->{$parentNode}->rootNode : undef) { | |
| 200 if ($this->{$rootNode} ? $this->{$rootNode} != $newRoot : 1 ) { | |
| 201 $this->{$rootNode} = $newRoot; | |
| 202 weaken($this->{$rootNode}); | |
| 203 if ($this->{$childNodes}) { | |
| 204 $_->_updateRootRefs foreach @{$this->{$childNodes}}; | |
| 205 } | |
| 206 } | |
| 207 } elsif($this->{$rootNode}) { | |
| 208 delete $this->{$rootNode}; | |
| 209 if ($this->{$childNodes}) { | |
| 210 $_->_updateRootRefs foreach @{$this->{$childNodes}}; | |
| 211 } | |
| 212 } | |
| 213 } | |
| 214 | |
| 4 | 215 sub _setParent { |
| 11 | 216 my ($this,$node) = @_; |
| 4 | 217 |
| 18 | 218 |
| 219 if (($node || 0) != ($this->{$parentNode} || 0)) { | |
| 220 if ($node) { | |
| 221 $this->{$parentNode} = $node; | |
| 222 # prevent from creating cyclicreferences | |
| 223 weaken($this->{$parentNode}); | |
| 224 } else { | |
| 225 delete $this->{$parentNode}; | |
| 226 } | |
| 227 $this->_updateRootRefs; | |
| 228 } | |
| 0 | 229 } |
| 230 | |
| 231 sub text { | |
| 232 my ($this) = @_; | |
| 4 | 233 |
| 18 | 234 join '', $this->nodeValue || '', map $_->nodeValue || '', @{$this->childNodes}; |
| 0 | 235 } |
| 236 | |
| 237 sub Property { | |
| 238 my $this = shift; | |
| 239 my $name = shift; | |
| 240 | |
| 241 if (@_) { | |
| 242 # set | |
| 6 | 243 return $this->{$_propertyMap}{$name} = shift; |
| 0 | 244 } else { |
| 6 | 245 return $this->{$_propertyMap}{$name}; |
| 0 | 246 } |
| 247 } | |
| 248 | |
| 249 1; |