annotate Lib/IMPL/Web/View/TTFactory.pm @ 322:cca158327c47

added OutOfRangeException
author cin
date Tue, 21 May 2013 10:04:11 +0400
parents 75a78cbf7dcf
children 86336d451b82
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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 Carp qw(carp);
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7 use IMPL::lang qw(:hash is);
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8 use IMPL::Exception();
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9 use Scalar::Util qw(weaken);
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10
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11
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12 use IMPL::Const qw(:prop);
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13 use IMPL::declare {
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14 require => {
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15 Loader => 'IMPL::Code::Loader',
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16 OpException => '-IMPL::InvalidOperationException',
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17 ArgException => '-IMPL::InvalidArgumentException'
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18 },
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19 base => [
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20 'IMPL::Object::Factory' => sub {
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21 shift;
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22 }
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23 ],
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24 props => [
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25 template => PROP_RW,
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26 activation => PROP_RW,
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27 context => PROP_RW,
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28 baseLocation => PROP_RW,
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29 base => PROP_RW,
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30 registry => PROP_RO,
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31 blocks => PROP_RO,
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32 _instance => PROP_RW
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33 ]
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34 };
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35
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36 sub CTOR {
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37 my ($this,$class,$template,$context,$path,$registry) = @_;
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38
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39 die ArgException->new("A control class must be specified")
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40 unless $class;
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41 die ArgException->new("A template is required") unless $template;
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42
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43 Loader->safe->Require($class)
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44 unless ref $class ;
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45
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46 $context ||= new Template::Context();
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47 my $baseLocation = join( '/', splice( @{[split(/\//,$path)]}, 0, -1 ) );
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48
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49 $this->activation($template->activation || 'new');
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50 $this->template($template);
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51 $this->context($context);
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52 $this->baseLocation($baseLocation);
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53 $this->registry($registry);
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54
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55 if (my $baseTplName = $template->extends) {
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56 $baseTplName =~ s{^\./}{$baseLocation/};
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57
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58 my $base = $registry->Require($baseTplName)
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59 or die OpException->new("The specified base template isn't found");
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60
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61 $this->base($base);
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62
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63 $this->blocks(hashMerge($base->blocks, $template->blocks));
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64
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65 # блок BASE должен меняться в процессе выполнения, в зависимости от
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66 # шаблона, который рендерится, по мере перехода в BASE
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67
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68 my @baseStack;
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69
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70 $this->blocks->{BASE} = sub {
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71 my $ctx = shift;
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72
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73 die OpException->new("This tamplate doesn't have a base template")
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74 unless $base;
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75
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76 push @baseStack, $base;
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77 my $block = $base->template->block;
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78
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79 $base = $base->base;
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80
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81 my $result = eval {
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82 $ctx->process($block);
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83 };
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84 my $e = $@;
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85
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86 $base = pop @baseStack;
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87
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88 die $e if $e;
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89 return $result;
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90 };
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91 } else {
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92 $this->blocks( $template->blocks );
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93 }
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94
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95 if(my $blocks = $this->blocks) {
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96 while (my ($name,$block) = each %$blocks) {
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97 $context->define_block($name,$block);
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98 }
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99 }
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100
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101 $context->stash->update({ require => sub {
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102 my ($module) = @_;
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103
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104 $module =~ s/^\.\//$baseLocation\//;
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105 return $registry->Require($module);
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106 }});
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107 }
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108
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109 sub MergeParameters {
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110 my $this = shift;
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111 my $refProps = shift || {};
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112
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113 unless (ref($refProps) eq 'HASH') {
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114 carp "Passing control name through the first parameter is deprecated";
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115 my $name = $refProps;
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116 $refProps = shift;
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117 $refProps->{name} ||= $name;
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118 }
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119
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120 $refProps->{factory} = $this;
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121 my $ctx = $this->CloneContext();
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122
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123 return ($this->template, $ctx, $refProps);
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124 }
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125
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126 sub CreateObject {
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127 my $this = shift;
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128
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129 $this->activation eq 'singleton' ?
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130 $this->_instance || $this->_instance($this->next::method(@_)) :
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131 $this->next::method(@_);
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132 }
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133
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134 sub CloneContext {
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135 my ($this) = @_;
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136
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137 $this->context->localise();
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138
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139 my $args = { %{$this->context} };
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140 delete $args->{CONFIG};
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141
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142 $this->context->delocalise();
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143
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144 return Template::Context->new($args);
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145 }
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146
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147 sub Render {
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148 my ($this, $args) = @_;
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149
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150 return $this->new()->Render($args);
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151 }
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152
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153 sub save {
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154 die new IMPL::NotImplementedException("This class doesn't support serialization");
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155 }
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156
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157 sub restore {
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158 die new IMPL::NotImplementedException("This class doesn't support serialization");
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159 }
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160
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161 1;
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162
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163 __END__
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164
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165 =pod
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166
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167 =head1 NAME
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168
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169 C<IMPL::Web::View::TTFactory> - фабрика элементов управления
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170
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171 =head1 SYNOPSIS
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172
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173 =begin code
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174
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175 my $factory = new IMPL::Web::View::TTFactory(
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176 'IMPL::Web::View::TTControl',
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177 $doc,
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178 $context,
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179 {
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180 TRIM => 1
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181 },
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182 {
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183 myprop => 'my value'
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184 },
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185 );
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186
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187 my $input1 = $factory->new('login', { class => "required" } );
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188
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189 my $propval = $input->nodeProperty('myprop'); # 'my value'
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190
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191 =end code
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192
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193 =begin text
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194
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195 [%
194
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196 this.appendChild(
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197 my.org.input.new('login', class = this.errors('login') ? "invalid" : "" )
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198 );
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199 %]
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200
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201 =end text
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202
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203 =head1 DESCRIPTION
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204
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205 C< Inherits L<IMPL::Object::Factory> >
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206
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207 =head1 MEMBERS
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208
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209 =over
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210
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211 =item C<[get,set]template>
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212
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213 Документ C<Template::Document> который описывает элемент управления. См. C<IMPL::Web::View::TTControl>.
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214
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215 =item C<[get,set]context>
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216
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217 Контекст фабрики элементов управления, в этом контексте выполняет шаблон элемента управления при загрузке.
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218 Далее в этом контексте будет выполнен блок инициализации при создании первого элемента управления.
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219
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220 =item C<[get,set]opts>
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221
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222 Параметры контекста элемента управления (ссылка на хеш). Каждый элемент управления при создании получает свой контекст,
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223 который создает с данными параметрами и хранилищем переменных, дочерним к контексту фабрики.
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224
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225 =item C<[get,set]nodeProperties>
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226
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227 Ссылка на хеш со значениями свойств по умолчанию для создаваемого элемента управления.
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228
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229 =item C<[get]instances>
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230
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231 Количество созданных элементов управления данной фабрикой
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232
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233 =item C<[override]MergeParameters($name,$nodeProps)>
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234
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235 Превращает значения переданные методу C<new> фабрики в параметры для создания элемента управления.
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236
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237 =over
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238
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239 =item C<$name>
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240
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241 Имя создаваемого узла (C<nodeName>).
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242
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243 =item C<$nodeProps>
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244
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245 Ссылка на шех со значениями свойств узла. Данные значения будут совмещены со значениями из свойства C<nodeProperties>
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246
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247 =back
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248
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249 =item C<[override]CreateObject(@params)>
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250
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251 Создает экземпляр элемента управления стандартным образом. Учитывает количество экземпляров и если это первый,
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252 то производит дополнительную инициализацию контекста выполнив блок шаблона C<INIT>.
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253
191
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254 =item C<[inherited]new($name,$nodeProps)>
181
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255
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256 Создает элемент управления с указанным именем и набором свойств.
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257
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258 =back
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259
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260 =cut