annotate Lib/IMPL/Web/View/TTDocument.pm @ 236:2904da230022

DOM refactoring
author sergey
date Mon, 15 Oct 2012 04:23:01 +0400
parents 2530d1bb9638
children b8c724f6de36
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1 package IMPL::Web::View::TTDocument;
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2 use strict;
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3
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4 use Scalar::Util qw(weaken);
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5 use IMPL::Const qw(:prop);
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6
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7 use IMPL::declare {
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8 require => {
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9 TTFactory => 'IMPL::Web::View::TTFactory',
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10 TTControl => 'IMPL::Web::View::TTControl',
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11 Loader => 'IMPL::Code::Loader'
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12 },
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13 base => [
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14 'IMPL::Web::View::TTControl' => sub {
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15 my ($template,$contextOpts) = @_;
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16 'document',
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17 $_[0], # template
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18 new Template::Context($_[1]) # context
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19 },
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20 'IMPL::DOM::Document' => sub {
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21 nodeName => 'document'
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22 }
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23 ],
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24 props => [
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25 layout => PROP_RW,
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26 opts => PROP_RO,
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27 loader => PROP_RW,
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28 controls => PROP_RO,
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29
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30 # store the stash separately to make require() method to work correctly
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31 # even when a stash of the context is modified during the processing
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32 stash => PROP_RO
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33 ]
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34 };
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35
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36 BEGIN {
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37
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38 }
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39
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40 sub CTOR {
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41 my ($this,$template,$refOpts,$loader,$vars) = @_;
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42
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43 $this->controls({});
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44 $this->loader($loader) if $loader;
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45
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46 $this->layout( $template->layout ) unless $this->layout;
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47
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48 $this->opts($refOpts);
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49 $this->stash($this->context->stash);
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50
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51 my $self = $this;
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52 weaken($self);
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53
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54 $this->templateVars('require', sub {
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55 my $doc = $self;
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56 die new IMPL::Exception("A document is destroyed or invalid") unless $doc;
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57 $doc->RequireControl(@_);
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58 });
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59
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60 $this->templateVars('document', sub { $self } );
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61 $this->InitInstance($vars);
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62 }
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63
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64 sub templateVars {
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65 my $this = shift;
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66 my $name = shift;
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67
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68 if (@_) {
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69 return $this->stash->set($name, shift);
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70 } else {
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71 return $this->stash->get($name);
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72 }
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73 }
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74
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75 sub RequireControl {
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76 my ($this, $control, $nodeProps) = @_;
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77
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78 $nodeProps ||= {};
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79 $nodeProps->{document} = $this;
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80
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81 if (my $factory = $this->controls->{$control}) {
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82 return $factory;
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83 } else {
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84
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85 my $path = $control;
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86 if ( my $template = $this->loader->template($path) ) {
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87 my $opts = { %{$this->opts} };
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88
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89 # avoid propagation of local variables
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90 $opts->{STASH} = $this->stash->clone();
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91
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92 my $ctx = new Template::Context($opts);
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93
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94 $factory = new IMPL::Web::View::TTFactory(
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95 $template->class || typeof IMPL::Web::View::TTControl,
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96 $template,
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97 $ctx,
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98 $opts
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99 );
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100
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101 if ($template->class) {
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102 Loader->safe->Require($template->class);
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103 }
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104
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105 my @parts = split(/\/+/,$control);
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106
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107 $this->controls->{$control} = $factory;
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108
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109 return $factory;
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110
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111 } else {
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112 die new IMPL::KeyNotFoundException($control);
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113 }
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114 }
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115 }
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116
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117 sub Render {
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118 my ($this,$args) = @_;
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119
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120 my $output;
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121
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122 if ($this->layout) {
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123 $output = $this->context->include(
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124 $this->loader->layout($this->layout),
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125 {
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126 %{$args || {}},
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127 content => sub { $this->RenderContent($args); },
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128 this => $this,
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129 template => $this->template
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130 }
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131 );
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132 } else {
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133 return $this->RenderContent($args);
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134 }
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135
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136 return $output;
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137 }
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138
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139 sub RenderContent {
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140 my $this = shift;
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141 return $this->SUPER::Render(@_);
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142 }
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143
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144 1;
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145
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146 __END__
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147
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148 =pod
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149
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150 =head1 NAME
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151
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152 C<IMPL::Web::View::TTDocument> - документ для построения HTML страницы на основе шаблонов TT.
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153
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154 =head1 SYNOPSIS
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155
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156 =begin code
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157
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158 use IMPL::Web::View::TTDocument();
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159
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160 my $doc = new IMPL::Wbe::View::TTDocument($template,$ttOptions);
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161
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162 return $doc->Render();
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163
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164 =end code
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165
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166 Однако, более предпочтительный способ использовать C<IMPL::Web::View::TTLoader>.
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167
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168 =head1 DESCRIPTION
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169
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170 Документ для представления данных. Документы представляют собой иерархически организованные данные,
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171 элементами данного документа являются данные для отображения, такие как
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172
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173 =over
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174
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175 =item * Объекты из БД
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176
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177 =item * Навигационные цепочки
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178
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179 =item * Меню и т.п.
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180
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181 =back
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182
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183 Скприт шаблона формирует структуру документа, затем сформированная структура форматируется в готовый документ.
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184 Процесс форматирования объектной модели в готовый документ может быть выполнена как вручную, так и при помощи
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185 вспомогательного шаблона - обертки. Если у шаблона документа указан C<layout> в метаданных, то он будет
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186 использован как шаблон для форматирования объектной модели, вывод самого шаблона будет проигнорирован. Если
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187 обертка не задана, то результатом будет вывод самого скрипта шаблона.
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188
195
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189 Использование объектной модели документа позволяет решить задачи по созданию контейнеров,
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190 у которых может быть сложное содежимое. Примером таких элементов могут быть формы,
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191 внутри форм элементы управления также могут группироваться.
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192
193
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193 =head2 Элементы управления (компоненты)
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194
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195 Документ состоит из узлов, часть которых наследуется от C<IMPL::Web::View::TTControl>, такие узлы называются
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196 элементами управления. Каждый элемент управления имеет собственный контекст, который наследуется от контекста
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197 документа.
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198
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199 =head2 Фабрика элементов управления
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200
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201 Для создания элементов управления используются фабрики. Каждый элемен управления имеет свой шаблон для
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202 форматиорвания содержимого, фабрика связывает шаблон и класс элемента управления, для чего при загрузке
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203 шаблона используется свойство C<type> из метаданных. Фабрика загружается в документ при том только один
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204 раз, повторные загрузки фабрики возвращают уже загруженную. Для загрузки фабрики используется метод
195
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cin
parents: 194
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205 C<require()> с указанием элемента управления.
190
cd1ff7029a63 IMLP::Web::View refactored, added new method 'require' which is available inside templates. Changed document rendering.
cin
parents: 189
diff changeset
206
185
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cin
parents: 181
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207 =head2 Порядок обработки документа
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parents: 181
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208
195
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diff changeset
209 Построение представления данных состоит из двух этапов
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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210
185
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
diff changeset
211 =over
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cin
parents: 181
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212
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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213 =item 1 Создание объектной модели документа. На данном этапе создаются все элементы управления.
185
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
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214
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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215 =item 1 Преобразование объектной модели в конечнное представление. На данном этапе происходит
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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216 форматирование документа.
185
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
diff changeset
217
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
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218 =back
181
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219
195
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220
181
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221 =head2 Загрузка элемента управления
47dac58691ee New templating system, small fixes
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222
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223 =over
47dac58691ee New templating system, small fixes
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224
194
4d0e1962161c Replaced tabs with spaces
cin
parents: 193
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225 =item 1 C<TInput = require('my/org/input')>
181
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226
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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227 =item 1 Загружается шаблон C<my/org/input.tt>
181
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228
195
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cin
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229 =item 1 Создается фабрика элементов управления с собственным контекстом, унаследованным от контекст документа.
181
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230
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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231 =item 1 При первом создании элемента управления фабрика инициализируется выполнением блока C<INIT>.
181
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232
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233 =back
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234
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235 =head2 Создание элемента управления
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236
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237 =over
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238
194
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cin
parents: 193
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239 =item 1 C<< TInput.new('login') >>
181
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240
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241 =item 1 Создается новый дочерний контекст к контексту фабрики
47dac58691ee New templating system, small fixes
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242
47dac58691ee New templating system, small fixes
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243 =item 1 Создается экземпляр элемента управления
47dac58691ee New templating system, small fixes
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244
195
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cin
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245 =item 1 Выполняется блок конструктора C<CTOR> в контексте элемента управления, параметр C<this> имеет значение
181
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246 нового экземпляра элемента управления
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247
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248 =back
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249
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250 =head1 MEMBERS
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251
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252 =over
47dac58691ee New templating system, small fixes
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253
195
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cin
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254 =item C<CTOR($template, $contextOpts, $loader[, $vars])>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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255
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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256 Создает экземпляр документа с указанным шаблоном и параметрами.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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257
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cin
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258 =over
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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259
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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260 =item C<$template>
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cin
parents: 194
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261
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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262 C<Template::Document> шаблон документа.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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263
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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264 =item C<$contextOpts>
181
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265
195
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cin
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266 C<HASH> Параметры контекста C<Template::Context> для документа. Эти параметры будут сохранены
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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267 в свойстве C<opts>, а также на их основе будет создан контекст текщего документа. Как правило
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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268 эти параметы задаются загрузчиком документа C<IMPL::Web::View::TTLoader>, таким образом, что
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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269 C<Template::Stash> создаваемого контекста наследует переменные из контекста загрузчика.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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270
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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271 =item C<$loader>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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272
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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273 C<IMPL::Web::View::TTLoader> загрузчик, который будет использоваться для загрузки элементов управления,
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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274 а также для получения обертки, заданной в свойстве документа C<layout>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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275
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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276 =item C<$vars>
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cin
parents: 194
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277
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cin
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278 C<HASH> Необязательный параметр. переменные которые будут переданы в блок конструктора C<INIT>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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279 Как правило они используются для передачи данных для построения документа
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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280
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cin
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281 =back
181
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282
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283 =back
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284
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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285 =over
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286
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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287 =item C<templateVars($name[,$newValue])>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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288
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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289 Получает или задает переменную для шаблона документа. Имя переменнной может быть составным,
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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290 например C<'my.var.name'>, см. C<Template::Stash::set()>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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291
236
2904da230022 DOM refactoring
sergey
parents: 234
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292 =item C<RequireControl($controlName)>
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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293
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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294 Загружает фабрику элемента управления, если она уже была загружена, возвращает на нее ссылку.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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295 При загрузки фабрики для нее создается собственный контекст на основе параметров из свойства
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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296 C<opts> и ее пространство имен наследуется от пространства имен документа из свойства C<stash>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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297
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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298 =item C<Render($vars)>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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299
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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300 Выполняет блок C<renderBlock> документа для получения конечного представления, C<$vars>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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301 содержит переменные для блока.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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302
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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303 =item C<RenderContent($vars)>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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304
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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305 Выполняет шаблон документа для получения представления содержимого, в отличии от
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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306 метода C<Render> не использует обертку указанную в свойстве C<layout>, если обертка
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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307 не указана, то эти методы идентичны.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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308
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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309 =item C<[get,set]layout>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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310
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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311 Обертка, которая будет использована для построения представления документа. В обертке
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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312 будет доступна специальная переменная C<content>, при обращении к которой будет B<выполнен>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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313 метод C<RenderContent()> и возвращен результат его работы. Для получения шаблона обертки
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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314 используется загрузчик из свойства C<loader>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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315
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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316 =item C<[get]opts>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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317
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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318 Параметры контекста, используются для создания контекстов фабрик элементов управления.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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319
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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320 =item C<[get]loader>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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321
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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322 Загрузчик, используется для загрузки шаблонов фабрик элементов управления и обертки.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
323
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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324 =item C<[get]controls>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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325
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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326 C<HASH> Коллекция загруженных фабрик элементов управления, ключем является
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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327 квалифицированное имя элемента управления.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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328
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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329 =item C<[get]stash>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
330
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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331 C<Template::Stash> Пространство имен документа, оно используется как родительское
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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332 для пространств имен загружаемых фабрик элементов управления.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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333
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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334 =back
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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335
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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336 =head1 TEMPLATES
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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337
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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diff changeset
338 =begin text
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cin
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339
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
340 [%META layout='default'%]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
341 [% BLOCK CTOR;
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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342 section('top','TOP');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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343 section('bottom','BOTTOM');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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344 section('client','CLIENT');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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345 END %]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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346 [% BLOCK TOP;
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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347 TMenu = require('my/org/Menu');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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348 append(TMenu.new());
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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349 END %]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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350
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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351 =end
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352
181
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353 =cut