Mercurial > pub > Impl
annotate Lib/IMPL/DOM/Document.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 |
| rev | line source |
|---|---|
| 49 | 1 package IMPL::DOM::Document; |
| 2 use strict; | |
| 3 use warnings; | |
| 4 | |
| 280 | 5 use IMPL::lang; |
| 165 | 6 use parent qw(IMPL::DOM::Node); |
| 49 | 7 |
| 8 __PACKAGE__->PassThroughArgs; | |
| 9 | |
| 10 sub document { | |
| 11 return $_[0]; | |
| 12 } | |
| 13 | |
| 14 sub Create { | |
| 15 my ($this,$nodeName,$class,$refProps) = @_; | |
| 16 | |
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17 if ( ref $class eq 'HASH' ) { |
| 194 | 18 $refProps = $class; |
| 19 $class = undef; | |
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20 } |
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21 |
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22 $class ||= typeof IMPL::DOM::Node; |
| 49 | 23 $refProps ||= {}; |
| 24 | |
| 25 delete $refProps->{nodeName}; | |
| 26 | |
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27 die new IMPL::Exception("class is not specified") unless $class; |
| 49 | 28 return $class->new( |
| 29 nodeName => $nodeName, | |
| 30 document => $this, | |
| 31 %$refProps | |
| 32 ); | |
| 33 } | |
| 34 | |
| 152 | 35 sub save { |
| 194 | 36 my ($this,$writer) = @_; |
| 37 | |
| 38 $writer->xmlDecl(undef,'yes'); | |
| 39 $this->SUPER::save($writer); | |
| 40 $writer->end(); | |
| 152 | 41 } |
| 42 | |
| 49 | 43 { |
| 44 my $empty; | |
| 45 sub Empty() { | |
| 46 return $empty ? $empty : $empty = __PACKAGE__->new(nodeName => 'Empty'); | |
| 47 } | |
| 48 } | |
| 49 | |
| 50 1; | |
| 51 __END__ | |
| 52 | |
| 53 =pod | |
| 54 | |
| 77 | 55 =head1 NAME |
| 56 | |
| 180 | 57 C<IMPL::DOM::Document> DOM документ. |
| 77 | 58 |
| 49 | 59 =head1 DESCRIPTION |
| 60 | |
| 180 | 61 Документ, позволяет создавать узлы определенных типов, что позволяет абстрагироваться |
| 62 от механизмов реального создания объектов. Т.о. например C<IMPL::DOM::Navigator::Builder> | |
| 63 может формировать произвольные документы. | |
| 77 | 64 |
| 65 =head1 SYNOPSIS | |
| 66 | |
| 67 =begin code | |
| 68 | |
| 69 package MyDocument; | |
| 165 | 70 use parent qw(IMPL::DOM::Document); |
| 77 | 71 |
| 72 sub Create { | |
| 194 | 73 my $this = shift; |
| 74 my ($name,$class,$hashProps) = @_; | |
| 75 | |
| 76 if ($class eq 'Info') { | |
| 77 return MyInfo->new($name,$hashProps->{date},$hashProps->{description}); | |
| 78 } else { | |
| 79 # leave as it is | |
| 80 return $this->SUPER::Create(@_); | |
| 81 } | |
| 77 | 82 } |
| 83 | |
| 84 =end code | |
| 85 | |
| 49 | 86 =head1 METHODS |
| 87 | |
| 88 =over | |
| 89 | |
| 77 | 90 =item C< Create($nodeName,$class,$hashProps) > |
| 91 | |
| 180 | 92 Реализация по умолчанию. Создает узел определеннго типа с определенным именем и свойствами. |
| 77 | 93 |
| 94 =begin code | |
| 49 | 95 |
| 77 | 96 sub Create { |
| 194 | 97 my ($this,$nodeName,$class,$hashProps) = @_; |
| 98 | |
| 99 return $class->new ( | |
| 100 nodeName => $nodeName, | |
| 101 document => $this, | |
| 102 %$hashProps | |
| 103 ); | |
| 77 | 104 } |
| 105 | |
| 106 =end code | |
| 49 | 107 |
| 152 | 108 =item C< save($writer) > |
| 109 | |
| 180 | 110 Сохраняет документ в виде XML узла и вызывает C<< $writer->end() >>. |
| 152 | 111 |
| 112 =over | |
| 113 | |
| 114 =item C<$writer> | |
| 115 | |
| 180 | 116 Объект с интерфейсом C<XML::Writer> который будет использован для записи |
| 117 содержимого документа | |
| 152 | 118 |
| 119 =back | |
| 120 | |
| 49 | 121 =back |
| 122 | |
| 123 =cut |