annotate Lib/IMPL/Web/View/TTDocument.pm @ 238:b8c724f6de36

DOM model refactoring TT view refactoring, controls are no longer derived from DOM nodes bugfixes
author sergey
date Tue, 16 Oct 2012 01:33:06 +0400
parents 2904da230022
children f48a1a9f4fa2
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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 $template, # template
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18 Template::Context->new($contextOpts) # context
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19 }
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20 ],
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21 props => [
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22 layout => PROP_RW,
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23 opts => PROP_RO,
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24 loader => PROP_RW,
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25 controls => PROP_RO,
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26
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27 # store the stash separately to make require() method to work correctly
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28 # even when a stash of the context is modified during the processing
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29 stash => PROP_RO
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30 ]
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31 };
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32
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33 BEGIN {
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34
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35 }
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36
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37 sub CTOR {
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38 my ($this,$template,$refOpts,$loader,$vars) = @_;
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39
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40 $this->controls({});
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41 $this->loader($loader) if $loader;
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42
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43 $this->layout( $template->layout ) unless $this->layout;
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44
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45 $this->opts($refOpts);
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46 $this->stash($this->context->stash);
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47
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48 my $self = $this;
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49 weaken($self);
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50
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51 $this->templateVars('require', sub {
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52 my $doc = $self;
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53 die new IMPL::Exception("A document is destroyed or invalid") unless $doc;
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54 $doc->RequireControl(@_);
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55 });
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56
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57 $this->templateVars('document', sub { $self } );
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58 $this->InitInstance($vars);
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59 }
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60
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61 sub templateVars {
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62 my $this = shift;
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63 my $name = shift;
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64
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65 if (@_) {
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66 return $this->stash->set($name, shift);
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67 } else {
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68 return $this->stash->get($name);
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69 }
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70 }
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71
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72 sub RequireControl {
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73 my ($this, $control, $nodeProps) = @_;
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74
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75 $nodeProps ||= {};
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76 $nodeProps->{document} = $this;
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77
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78 if (my $factory = $this->controls->{$control}) {
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79 return $factory;
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80 } else {
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81
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82 my $path = $control;
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83 if ( my $template = $this->loader->template($path) ) {
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84 my $opts = { %{$this->opts} };
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85
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86 # avoid propagation of local variables
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87 $opts->{STASH} = $this->stash->clone();
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88
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89 my $ctx = new Template::Context($opts);
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90
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91 $factory = new IMPL::Web::View::TTFactory(
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92 $template->class || typeof IMPL::Web::View::TTControl,
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93 $template,
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94 $ctx,
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95 $opts
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96 );
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97
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98 if ($template->class) {
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99 Loader->safe->Require($template->class);
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100 }
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101
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102 my @parts = split(/\/+/,$control);
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103
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104 $this->controls->{$control} = $factory;
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105
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106 return $factory;
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107
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108 } else {
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109 die new IMPL::KeyNotFoundException($control);
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110 }
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111 }
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112 }
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113
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114 sub Render {
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115 my ($this,$args) = @_;
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116
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117 my $output;
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118
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119 if ($this->layout) {
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120 $output = $this->context->include(
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121 $this->loader->layout($this->layout),
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122 {
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123 %{$args || {}},
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124 content => sub { $this->RenderContent($args); },
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125 this => $this,
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126 template => $this->template
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127 }
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128 );
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129 } else {
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130 return $this->RenderContent($args);
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131 }
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132
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133 return $output;
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134 }
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135
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136 sub RenderContent {
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137 my $this = shift;
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138 return $this->SUPER::Render(@_);
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139 }
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140
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141 1;
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142
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143 __END__
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144
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145 =pod
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146
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147 =head1 NAME
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148
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149 C<IMPL::Web::View::TTDocument> - документ для построения HTML страницы на основе шаблонов TT.
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150
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151 =head1 SYNOPSIS
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152
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153 =begin code
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154
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155 use IMPL::Web::View::TTDocument();
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156
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157 my $doc = new IMPL::Wbe::View::TTDocument($template,$ttOptions);
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158
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159 return $doc->Render();
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160
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161 =end code
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162
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163 Однако, более предпочтительный способ использовать C<IMPL::Web::View::TTLoader>.
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164
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165 =head1 DESCRIPTION
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166
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167 Документ для представления данных. Документы представляют собой иерархически организованные данные,
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168 элементами данного документа являются данные для отображения, такие как
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169
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170 =over
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171
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172 =item * Объекты из БД
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173
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174 =item * Навигационные цепочки
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175
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176 =item * Меню и т.п.
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177
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178 =back
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179
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180 Скприт шаблона формирует структуру документа, затем сформированная структура форматируется в готовый документ.
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181 Процесс форматирования объектной модели в готовый документ может быть выполнена как вручную, так и при помощи
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182 вспомогательного шаблона - обертки. Если у шаблона документа указан C<layout> в метаданных, то он будет
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183 использован как шаблон для форматирования объектной модели, вывод самого шаблона будет проигнорирован. Если
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184 обертка не задана, то результатом будет вывод самого скрипта шаблона.
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185
195
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186 Использование объектной модели документа позволяет решить задачи по созданию контейнеров,
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187 у которых может быть сложное содежимое. Примером таких элементов могут быть формы,
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188 внутри форм элементы управления также могут группироваться.
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189
193
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190 =head2 Элементы управления (компоненты)
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191
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192 Документ состоит из узлов, часть которых наследуется от C<IMPL::Web::View::TTControl>, такие узлы называются
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193 элементами управления. Каждый элемент управления имеет собственный контекст, который наследуется от контекста
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194 документа.
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195
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196 =head2 Фабрика элементов управления
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197
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198 Для создания элементов управления используются фабрики. Каждый элемен управления имеет свой шаблон для
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199 форматиорвания содержимого, фабрика связывает шаблон и класс элемента управления, для чего при загрузке
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200 шаблона используется свойство C<type> из метаданных. Фабрика загружается в документ при том только один
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201 раз, повторные загрузки фабрики возвращают уже загруженную. Для загрузки фабрики используется метод
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202 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
203
185
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cin
parents: 181
diff changeset
204 =head2 Порядок обработки документа
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
diff changeset
205
195
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cin
parents: 194
diff changeset
206 Построение представления данных состоит из двух этапов
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
207
185
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
diff changeset
208 =over
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
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209
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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210 =item 1 Создание объектной модели документа. На данном этапе создаются все элементы управления.
185
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
diff changeset
211
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
212 =item 1 Преобразование объектной модели в конечнное представление. На данном этапе происходит
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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213 форматирование документа.
185
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
diff changeset
214
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
diff changeset
215 =back
181
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216
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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217
181
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218 =head2 Загрузка элемента управления
47dac58691ee New templating system, small fixes
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219
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220 =over
47dac58691ee New templating system, small fixes
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221
194
4d0e1962161c Replaced tabs with spaces
cin
parents: 193
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222 =item 1 C<TInput = require('my/org/input')>
181
47dac58691ee New templating system, small fixes
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223
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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224 =item 1 Загружается шаблон C<my/org/input.tt>
181
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225
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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226 =item 1 Создается фабрика элементов управления с собственным контекстом, унаследованным от контекст документа.
181
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227
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
228 =item 1 При первом создании элемента управления фабрика инициализируется выполнением блока C<INIT>.
181
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229
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230 =back
47dac58691ee New templating system, small fixes
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231
47dac58691ee New templating system, small fixes
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232 =head2 Создание элемента управления
47dac58691ee New templating system, small fixes
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233
47dac58691ee New templating system, small fixes
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234 =over
47dac58691ee New templating system, small fixes
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235
194
4d0e1962161c Replaced tabs with spaces
cin
parents: 193
diff changeset
236 =item 1 C<< TInput.new('login') >>
181
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237
47dac58691ee New templating system, small fixes
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238 =item 1 Создается новый дочерний контекст к контексту фабрики
47dac58691ee New templating system, small fixes
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239
47dac58691ee New templating system, small fixes
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240 =item 1 Создается экземпляр элемента управления
47dac58691ee New templating system, small fixes
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241
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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242 =item 1 Выполняется блок конструктора C<CTOR> в контексте элемента управления, параметр C<this> имеет значение
181
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243 нового экземпляра элемента управления
47dac58691ee New templating system, small fixes
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244
47dac58691ee New templating system, small fixes
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245 =back
47dac58691ee New templating system, small fixes
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246
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247 =head1 MEMBERS
47dac58691ee New templating system, small fixes
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248
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249 =over
47dac58691ee New templating system, small fixes
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250
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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251 =item C<CTOR($template, $contextOpts, $loader[, $vars])>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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252
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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253 Создает экземпляр документа с указанным шаблоном и параметрами.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
254
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
255 =over
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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256
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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257 =item C<$template>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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258
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
259 C<Template::Document> шаблон документа.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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260
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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261 =item C<$contextOpts>
181
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262
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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263 C<HASH> Параметры контекста C<Template::Context> для документа. Эти параметры будут сохранены
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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264 в свойстве C<opts>, а также на их основе будет создан контекст текщего документа. Как правило
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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265 эти параметы задаются загрузчиком документа C<IMPL::Web::View::TTLoader>, таким образом, что
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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266 C<Template::Stash> создаваемого контекста наследует переменные из контекста загрузчика.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
267
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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268 =item C<$loader>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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269
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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270 C<IMPL::Web::View::TTLoader> загрузчик, который будет использоваться для загрузки элементов управления,
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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271 а также для получения обертки, заданной в свойстве документа C<layout>.
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
parents: 194
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273 =item C<$vars>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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274
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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275 C<HASH> Необязательный параметр. переменные которые будут переданы в блок конструктора C<INIT>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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276 Как правило они используются для передачи данных для построения документа
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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277
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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278 =back
181
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279
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280 =back
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281
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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282 =over
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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283
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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284 =item C<templateVars($name[,$newValue])>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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285
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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286 Получает или задает переменную для шаблона документа. Имя переменнной может быть составным,
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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287 например C<'my.var.name'>, см. C<Template::Stash::set()>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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288
236
2904da230022 DOM refactoring
sergey
parents: 234
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289 =item C<RequireControl($controlName)>
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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290
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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291 Загружает фабрику элемента управления, если она уже была загружена, возвращает на нее ссылку.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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292 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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293 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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294
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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295 =item C<Render($vars)>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
296
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
297 Выполняет блок C<renderBlock> документа для получения конечного представления, C<$vars>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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298 содержит переменные для блока.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
299
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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300 =item C<RenderContent($vars)>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
301
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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302 Выполняет шаблон документа для получения представления содержимого, в отличии от
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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303 метода C<Render> не использует обертку указанную в свойстве C<layout>, если обертка
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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304 не указана, то эти методы идентичны.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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305
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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306 =item C<[get,set]layout>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
307
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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308 Обертка, которая будет использована для построения представления документа. В обертке
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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309 будет доступна специальная переменная C<content>, при обращении к которой будет B<выполнен>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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310 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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311 используется загрузчик из свойства C<loader>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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312
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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313 =item C<[get]opts>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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314
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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315 Параметры контекста, используются для создания контекстов фабрик элементов управления.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
316
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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317 =item C<[get]loader>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
318
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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319 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
320
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
321 =item C<[get]controls>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
322
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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323 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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324 квалифицированное имя элемента управления.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
325
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
326 =item C<[get]stash>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
327
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
328 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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329 для пространств имен загружаемых фабрик элементов управления.
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
parents: 194
diff changeset
331 =back
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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332
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
333 =head1 TEMPLATES
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
334
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
335 =begin text
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
336
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
337 [%META layout='default'%]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
338 [% BLOCK CTOR;
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
339 section('top','TOP');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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340 section('bottom','BOTTOM');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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341 section('client','CLIENT');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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342 END %]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
343 [% BLOCK TOP;
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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344 TMenu = require('my/org/Menu');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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345 append(TMenu.new());
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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346 END %]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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347
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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348 =end
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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349
181
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350 =cut