annotate Lib/IMPL/Web/View/TTDocument.pm @ 251:9f394b27dccf

require can handle recursive module references
author sergey
date Fri, 16 Nov 2012 16:44:16 +0400
parents 7c517134c42f
children 0f59b2de72af
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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 use IMPL::lang qw(:hash);
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7
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8 use IMPL::declare {
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9 require => {
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10 TTFactory => 'IMPL::Web::View::TTFactory',
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11 TTControl => 'IMPL::Web::View::TTControl',
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12 Loader => 'IMPL::Code::Loader'
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13 },
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14 base => [
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15 'IMPL::Web::View::TTControl' => sub {
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16 my ($template,$contextOpts) = @_;
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17 'document',
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18 $template, # template
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19 Template::Context->new($contextOpts) # context
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20 }
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21 ],
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22 props => [
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23 layout => PROP_RW,
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24 opts => PROP_RO,
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25 loader => PROP_RW,
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26 controls => PROP_RO,
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27 creationArgs => PROP_RO,
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28
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29 # store the stash separately to make require() method to work correctly
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30 # even when a stash of the context is modified during the processing
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31 stash => PROP_RO
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32 ]
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33 };
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34
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35 BEGIN {
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36
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37 }
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38
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39 sub CTOR {
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40 my ($this,$template,$refOpts,$loader,$vars) = @_;
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41
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42 $this->controls({});
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43 $this->loader($loader) if $loader;
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44
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45 $this->layout( $template->layout ) unless $this->layout;
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46
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47 $this->opts($refOpts);
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48 $this->stash($this->context->stash);
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49 $this->creationArgs($vars);
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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(context => $vars);
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61
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62 $this->templateVars(document => sub { $self } );
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63 $this->InitInstance($vars);
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64 }
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65
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66 sub templateVars {
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67 my $this = shift;
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68 my $name = shift;
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69
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70 if (@_) {
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71 return $this->stash->set($name, shift);
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72 } else {
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73 return $this->stash->get($name);
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74 }
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75 }
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76
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77 sub RequireControl {
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78 my ($this, $control, $nodeProps) = @_;
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79
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80 $nodeProps ||= {};
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81 $nodeProps->{document} = $this;
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82
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83 if (my $factory = $this->controls->{$control}) {
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84 return $factory;
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85 } else {
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86
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87 my $path = $control;
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88 if ( my $template = $this->loader->template($path) ) {
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89 my $opts = { %{$this->opts} };
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90
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91 # factory will create a clone of the stash
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92 # $opts->{STASH} = $this->stash->clone();
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94 my $ctx = new Template::Context($opts);
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95
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96 $factory = new IMPL::Web::View::TTFactory(
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97 $template->class || typeof IMPL::Web::View::TTControl,
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98 $template,
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99 $ctx,
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100 $opts
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101 );
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102
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103 if ($template->class) {
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104 Loader->safe->Require($template->class);
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105 }
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106
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107 my @parts = split(/\/+/,$control);
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108
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109 $this->controls->{$control} = $factory;
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110
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111 return $factory;
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112
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113 } else {
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114 die new IMPL::KeyNotFoundException($control);
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115 }
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116 }
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117 }
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118
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119 sub Render {
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120 my ($this,$args) = @_;
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121
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122 $args ||= {};
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123
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124 my $newArgs = hashMerge($this->creationArgs, $args);
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125
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126 if ($this->layout) {
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127 return $this->context->include(
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128 $this->loader->layout($this->layout),
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129 {
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130 %{$newArgs},
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131 content => $this->RenderContent($newArgs),
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132 this => $this,
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133 template => $this->template
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134 }
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135 );
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136 } else {
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137 return $this->RenderContent($newArgs);
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138 }
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139 }
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140
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141 sub RenderContent {
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142 my $this = shift;
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143 return $this->SUPER::Render(@_);
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144 }
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145
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146 1;
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147
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148 __END__
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149
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150 =pod
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151
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152 =head1 NAME
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153
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154 C<IMPL::Web::View::TTDocument> - документ для построения HTML страницы на основе шаблонов TT.
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155
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156 =head1 SYNOPSIS
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157
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158 =begin code
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159
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160 use IMPL::Web::View::TTDocument();
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161
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162 my $doc = new IMPL::Wbe::View::TTDocument($template,$ttOptions);
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163
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164 return $doc->Render();
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165
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166 =end code
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167
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168 Однако, более предпочтительный способ использовать C<IMPL::Web::View::TTLoader>.
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169
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170 =head1 DESCRIPTION
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171
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172 Документ для представления данных. Документы представляют собой иерархически организованные данные,
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173 элементами данного документа являются данные для отображения, такие как
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174
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175 =over
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176
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177 =item * Объекты из БД
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178
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179 =item * Навигационные цепочки
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180
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181 =item * Меню и т.п.
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182
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183 =back
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184
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185 Скприт шаблона формирует структуру документа, затем сформированная структура форматируется в готовый документ.
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186 Процесс форматирования объектной модели в готовый документ может быть выполнена как вручную, так и при помощи
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187 вспомогательного шаблона - обертки. Если у шаблона документа указан C<layout> в метаданных, то он будет
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188 использован как шаблон для форматирования объектной модели, вывод самого шаблона будет проигнорирован. Если
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189 обертка не задана, то результатом будет вывод самого скрипта шаблона.
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190
195
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191 Использование объектной модели документа позволяет решить задачи по созданию контейнеров,
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192 у которых может быть сложное содежимое. Примером таких элементов могут быть формы,
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193 внутри форм элементы управления также могут группироваться.
192
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194
193
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195 =head2 Элементы управления (компоненты)
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196
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197 Документ состоит из узлов, часть которых наследуется от C<IMPL::Web::View::TTControl>, такие узлы называются
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198 элементами управления. Каждый элемент управления имеет собственный контекст, который наследуется от контекста
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199 документа.
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200
sergey
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201 =head2 Фабрика элементов управления
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202
sergey
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203 Для создания элементов управления используются фабрики. Каждый элемен управления имеет свой шаблон для
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204 форматиорвания содержимого, фабрика связывает шаблон и класс элемента управления, для чего при загрузке
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205 шаблона используется свойство C<type> из метаданных. Фабрика загружается в документ при том только один
sergey
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206 раз, повторные загрузки фабрики возвращают уже загруженную. Для загрузки фабрики используется метод
195
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cin
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207 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
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208
185
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cin
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209 =head2 Порядок обработки документа
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parents: 181
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210
195
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211 Построение представления данных состоит из двух этапов
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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212
185
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
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213 =over
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
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214
195
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215 =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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216
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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217 =item 1 Преобразование объектной модели в конечнное представление. На данном этапе происходит
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cin
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218 форматирование документа.
185
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
diff changeset
219
ae8072f2f2a3 IMPL::Web::View::TTDocument tests, fixes
cin
parents: 181
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220 =back
181
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221
195
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222
181
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223 =head2 Загрузка элемента управления
47dac58691ee New templating system, small fixes
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224
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225 =over
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226
194
4d0e1962161c Replaced tabs with spaces
cin
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227 =item 1 C<TInput = require('my/org/input')>
181
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228
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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229 =item 1 Загружается шаблон C<my/org/input.tt>
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 Создается фабрика элементов управления с собственным контекстом, унаследованным от контекст документа.
181
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232
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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233 =item 1 При первом создании элемента управления фабрика инициализируется выполнением блока C<INIT>.
181
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234
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235 =back
47dac58691ee New templating system, small fixes
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236
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237 =head2 Создание элемента управления
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238
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239 =over
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240
194
4d0e1962161c Replaced tabs with spaces
cin
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241 =item 1 C<< TInput.new('login') >>
181
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242
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243 =item 1 Создается новый дочерний контекст к контексту фабрики
47dac58691ee New templating system, small fixes
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244
47dac58691ee New templating system, small fixes
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245 =item 1 Создается экземпляр элемента управления
47dac58691ee New templating system, small fixes
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246
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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247 =item 1 Выполняется блок конструктора C<CTOR> в контексте элемента управления, параметр C<this> имеет значение
181
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248 нового экземпляра элемента управления
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249
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250 =back
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251
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252 =head1 MEMBERS
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253
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254 =over
47dac58691ee New templating system, small fixes
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255
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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256 =item C<CTOR($template, $contextOpts, $loader[, $vars])>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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257
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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258 Создает экземпляр документа с указанным шаблоном и параметрами.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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259
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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260 =over
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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261
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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262 =item C<$template>
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cin
parents: 194
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263
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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264 C<Template::Document> шаблон документа.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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265
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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266 =item C<$contextOpts>
181
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267
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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268 C<HASH> Параметры контекста C<Template::Context> для документа. Эти параметры будут сохранены
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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269 в свойстве C<opts>, а также на их основе будет создан контекст текщего документа. Как правило
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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270 эти параметы задаются загрузчиком документа C<IMPL::Web::View::TTLoader>, таким образом, что
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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271 C<Template::Stash> создаваемого контекста наследует переменные из контекста загрузчика.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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272
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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273 =item C<$loader>
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<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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276 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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277
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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278 =item C<$vars>
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cin
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279
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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280 C<HASH> Необязательный параметр. переменные которые будут переданы в блок конструктора C<INIT>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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281 Как правило они используются для передачи данных для построения документа
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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parents: 194
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282
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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283 =back
181
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284
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285 =back
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286
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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287 =over
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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288
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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289 =item C<templateVars($name[,$newValue])>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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290
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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291 Получает или задает переменную для шаблона документа. Имя переменнной может быть составным,
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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292 например C<'my.var.name'>, см. C<Template::Stash::set()>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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293
236
2904da230022 DOM refactoring
sergey
parents: 234
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294 =item C<RequireControl($controlName)>
195
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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295
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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296 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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297 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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298 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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299
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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300 =item C<Render($vars)>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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301
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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302 Выполняет блок C<renderBlock> документа для получения конечного представления, C<$vars>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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303 содержит переменные для блока.
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
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305 =item C<RenderContent($vars)>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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306
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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307 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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308 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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309 не указана, то эти методы идентичны.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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310
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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311 =item C<[get,set]layout>
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 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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314 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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315 метод C<RenderContent()> и возвращен результат его работы. Для получения шаблона обертки
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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316 используется загрузчик из свойства C<loader>.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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317
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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318 =item C<[get]opts>
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 Параметры контекста, используются для создания контекстов фабрик элементов управления.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
321
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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322 =item C<[get]loader>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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323
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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324 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
325
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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326 =item C<[get]controls>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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327
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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328 C<HASH> Коллекция загруженных фабрик элементов управления, ключем является
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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329 квалифицированное имя элемента управления.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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330
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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331 =item C<[get]stash>
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
332
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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diff changeset
333 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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334 для пространств имен загружаемых фабрик элементов управления.
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
335
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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336 =back
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337
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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338 =head1 TEMPLATES
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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339
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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340 =begin text
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cin
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341
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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diff changeset
342 [%META layout='default'%]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
diff changeset
343 [% BLOCK CTOR;
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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344 section('top','TOP');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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345 section('bottom','BOTTOM');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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346 section('client','CLIENT');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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347 END %]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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348 [% BLOCK TOP;
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
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349 TMenu = require('my/org/Menu');
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
cin
parents: 194
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350 append(TMenu.new());
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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351 END %]
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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352
7a920771fd8e IMPL::Web::View changed document layout handling, docs, examples
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353 =end
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354
181
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355 =cut