annotate Lib/IMPL/Web/View/TTFactory.pm @ 300:bf3af33b9003

sync
author cin
date Fri, 22 Mar 2013 01:05:11 +0400
parents 78f767765706
children aeeb57a12046
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1 package IMPL::Web::View::TTFactory;
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2 use strict;
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3
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4 use Template::Context();
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5
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6 use IMPL::lang qw(:hash);
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7 use IMPL::Exception();
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8 use Scalar::Util qw(weaken);
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9
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10
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11 use IMPL::Const qw(:prop);
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12 use IMPL::declare {
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13 require => {
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14 Loader => 'IMPL::Code::Loader'
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15 },
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16 base => [
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17 'IMPL::Object::Factory' => sub {
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18 shift;
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19 }
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20 ],
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21 props => [
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22 template => PROP_RW,
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23 context => PROP_RW,
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24 instances => PROP_RW,
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25 baseLocation => PROP_RW,
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26 require => PROP_RO
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27 ]
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28 };
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29
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30 sub CTOR {
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31 my ($this,$class,$template,$context,$baseLocation,$require) = @_;
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32
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33 die IMPL::ArgumentException("A template is required") unless $template;
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34
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35 Loader->safe->Require($class)
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36 if $class and not ref $class;
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37
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38 $context ||= new Template::Context();
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39
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40 $this->template($template);
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41 $this->context($context);
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42 $this->baseLocation($baseLocation);
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43 $this->instances(0);
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44 $this->require($require);
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45 }
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46
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47 sub MergeParameters {
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48 my ($this,$refProps) = @_;
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49
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50 $refProps->{factory} = $this;
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51
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52 my $baseLocation = $this->baseLocation;
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53
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54 my $ctx = $this->CloneContext();
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55
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56 my $require = $this->require;
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57
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58 $ctx->stash->update({
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59 require => sub {
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60 my ($module) = @_;
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61
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62 $module =~ s/^\.\//$baseLocation\//;
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63 return $require->($module);
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64 }
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65 });
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66
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67 return ($this->template, $ctx, $refProps);
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68 }
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69
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70 sub CreateObject {
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71 my $this = shift;
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72
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73 my $count = $this->instances;
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74
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75 unless($count) {
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76 # нужно выполнить именно блок INIT шаблона при создании первого экземпляра
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77 if (my $init = $this->template->blocks->{INIT}) {
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78 $this->context->process($init);
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79 }
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80
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81 $this->context->visit($this->template->blocks);
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82 }
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83
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84 my $instance = $this->SUPER::CreateObject(@_);
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85
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86 $instance->InitInstance();
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87
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88 $count++;
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89 $this->instances($count);
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90
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91 return $instance;
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92 }
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93
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94 sub CloneContext {
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95 my ($this) = @_;
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96
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97 $this->context->localise();
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98
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99 my $args = { %{$this->context} };
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100 delete $args->{CONFIG};
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101
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102 $this->context->delocalise();
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103
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104 return Template::Context->new($args);
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105 }
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106
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107 sub save {
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108 die new IMPL::NotImplementedException("This class doesn't support serialization");
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109 }
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110
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111 sub restore {
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112 die new IMPL::NotImplementedException("This class doesn't support serialization");
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113 }
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114
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115 1;
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116
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117 __END__
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118
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119 =pod
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120
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121 =head1 NAME
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122
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123 C<IMPL::Web::View::TTFactory> - фабрика элементов управления
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124
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125 =head1 SYNOPSIS
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126
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127 =begin code
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128
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129 my $factory = new IMPL::Web::View::TTFactory(
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130 'IMPL::Web::View::TTControl',
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131 $doc,
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132 $context,
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133 {
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134 TRIM => 1
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135 },
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136 {
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137 myprop => 'my value'
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138 },
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139 );
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140
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141 my $input1 = $factory->new('login', { class => "required" } );
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142
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143 my $propval = $input->nodeProperty('myprop'); # 'my value'
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144
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145 =end code
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146
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147 =begin text
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148
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149 [%
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150 this.appendChild(
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151 my.org.input.new('login', class = this.errors('login') ? "invalid" : "" )
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152 );
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153 %]
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154
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155 =end text
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156
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157 =head1 DESCRIPTION
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158
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159 C< Inherits L<IMPL::Object::Factory> >
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160
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161 =head1 MEMBERS
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162
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163 =over
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164
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165 =item C<[get,set]template>
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166
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167 Документ C<Template::Document> который описывает элемент управления. См. C<IMPL::Web::View::TTControl>.
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168
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169 =item C<[get,set]context>
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170
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171 Контекст фабрики элементов управления, в этом контексте выполняет шаблон элемента управления при загрузке.
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172 Далее в этом контексте будет выполнен блок инициализации при создании первого элемента управления.
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173
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174 =item C<[get,set]opts>
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175
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176 Параметры контекста элемента управления (ссылка на хеш). Каждый элемент управления при создании получает свой контекст,
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177 который создает с данными параметрами и хранилищем переменных, дочерним к контексту фабрики.
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178
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179 =item C<[get,set]nodeProperties>
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180
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181 Ссылка на хеш со значениями свойств по умолчанию для создаваемого элемента управления.
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182
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183 =item C<[get]instances>
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184
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185 Количество созданных элементов управления данной фабрикой
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186
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187 =item C<[override]MergeParameters($name,$nodeProps)>
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188
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189 Превращает значения переданные методу C<new> фабрики в параметры для создания элемента управления.
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190
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191 =over
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192
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193 =item C<$name>
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194
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195 Имя создаваемого узла (C<nodeName>).
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196
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197 =item C<$nodeProps>
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198
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199 Ссылка на шех со значениями свойств узла. Данные значения будут совмещены со значениями из свойства C<nodeProperties>
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200
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201 =back
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202
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203 =item C<[override]CreateObject(@params)>
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204
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205 Создает экземпляр элемента управления стандартным образом. Учитывает количество экземпляров и если это первый,
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206 то производит дополнительную инициализацию контекста выполнив блок шаблона C<INIT>.
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207
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208 =item C<[inherited]new($name,$nodeProps)>
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209
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210 Создает элемент управления с указанным именем и набором свойств.
47dac58691ee New templating system, small fixes
sourcer
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211
47dac58691ee New templating system, small fixes
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parents:
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212 =back
47dac58691ee New templating system, small fixes
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parents:
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213
47dac58691ee New templating system, small fixes
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214 =cut