annotate Lib/IMPL/Web/View/TTFactory.pm @ 203:68a59c3358ff

Implemented templates selection mechanism
author sergey
date Wed, 25 Apr 2012 18:06:11 +0400
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children 5c82eec23bb6
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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 :declare :constants);
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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 parent qw(IMPL::Object::Factory);
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12
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13 BEGIN {
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14 public property template => PROP_ALL;
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15 public property context => PROP_ALL;
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16 public property opts => PROP_ALL;
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17 public property nodeProperties => PROP_ALL;
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18 public property instances => PROP_GET | PROP_OWNERSET;
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19 }
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20
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21 __PACKAGE__->PassThroughArgs;
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22
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23 sub CTOR {
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24 my ($this,$factory,$template,$context,$options,$nodeProps) = @_;
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25
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26 die IMPL::ArgumentException("A template is required") unless $template;
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27
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28 $options ||= {};
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29 $context ||= new Template::Context($options);
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30
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31 $this->template($template);
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32 $this->context($context);
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33 $this->opts($options);
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34 $this->nodeProperties($nodeProps || {});
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35 $this->instances(0);
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36 }
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37
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38 our %CTOR = (
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39 'IMPL::Object::Factory' => sub {
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40 $_[0]
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41 }
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42 );
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43
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44 sub MergeParameters {
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45 my ($this,$name,$refProps) = @_;
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46
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47 my $opts = { %{ $this->opts } };
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48 $opts->{STASH} = $opts->{STASH}->clone() if $opts->{STASH};
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49
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50 my $ctx = new Template::Context($opts);
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51
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52 return ($name, $this->template, $ctx, hashMerge($this->nodeProperties,$refProps));
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53 }
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54
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55 sub CreateObject {
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56 my $this = shift;
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57
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58 my $count = $this->instances;
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59
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60 unless($count) {
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61 # нужно выполнить именно блок INIT шаблона при создании первого экземпляра
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62 if (my $init = $this->template->blocks->{INIT}) {
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63 $this->context->process($init);
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64 }
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65 }
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66
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67 my $instance = $this->SUPER::CreateObject(@_);
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68
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69 $instance->InitInstance();
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70
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71 $count++;
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72 $this->instances($count);
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73
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74 return $instance;
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75 }
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76
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77 sub save {
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78 die new IMPL::NotImplementedException("This class doesn't support serialization");
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79 }
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80
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81 sub restore {
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82 die new IMPL::NotImplementedException("This class doesn't support serialization");
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83 }
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84
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85 1;
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86
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87 __END__
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88
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89 =pod
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90
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91 =head1 NAME
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92
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93 C<IMPL::Web::View::TTFactory> - фабрика элементов управления
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94
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95 =head1 SYNOPSIS
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96
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97 =begin code
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98
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99 my $factory = new IMPL::Web::View::TTFactory(
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100 typeof IMPL::Web::View::TTControl,
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101 $doc,
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102 $context,
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103 {
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104 TRIM => 1
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105 },
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106 {
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107 myprop => 'my value'
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108 },
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109 );
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110
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111 my $input1 = $factory->new('login', { class => "required" } );
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112
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113 my $propval = $input->nodeProperty('myprop'); # 'my value'
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114
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115 =end code
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116
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117 =begin text
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118
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119 [%
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120 this.appendChild(
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121 my.org.input.new('login', class = this.errors('login') ? "invalid" : "" )
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122 );
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123 %]
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124
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125 =end text
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126
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127 =head1 DESCRIPTION
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128
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129 C< Inherits L<IMPL::Object::Factory> >
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130
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131 =head1 MEMBERS
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132
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133 =over
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134
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135 =item C<[get,set]template>
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136
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137 Документ C<Template::Document> который описывает элемент управления. См. C<IMPL::Web::View::TTControl>.
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138
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139 =item C<[get,set]context>
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140
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141 Контекст фабрики элементов управления, в этом контексте выполняет шаблон элемента управления при загрузке.
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142 Далее в этом контексте будет выполнен блок инициализации при создании первого элемента управления.
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143
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144 =item C<[get,set]opts>
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145
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146 Параметры контекста элемента управления (ссылка на хеш). Каждый элемент управления при создании получает свой контекст,
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147 который создает с данными параметрами и хранилищем переменных, дочерним к контексту фабрики.
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148
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149 =item C<[get,set]nodeProperties>
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150
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151 Ссылка на хеш со значениями свойств по умолчанию для создаваемого элемента управления.
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152
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153 =item C<[get]instances>
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154
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155 Количество созданных элементов управления данной фабрикой
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156
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157 =item C<[override]MergeParameters($name,$nodeProps)>
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158
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159 Превращает значения переданные методу C<new> фабрики в параметры для создания элемента управления.
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160
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161 =over
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162
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163 =item C<$name>
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164
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165 Имя создаваемого узла (C<nodeName>).
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166
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167 =item C<$nodeProps>
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168
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169 Ссылка на шех со значениями свойств узла. Данные значения будут совмещены со значениями из свойства C<nodeProperties>
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170
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171 =back
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172
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173 =item C<[override]CreateObject(@params)>
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174
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175 Создает экземпляр элемента управления стандартным образом. Учитывает количество экземпляров и если это первый,
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176 то производит дополнительную инициализацию контекста выполнив блок шаблона C<INIT>.
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177
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178 =item C<[inherited]new($name,$nodeProps)>
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179
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180 Создает элемент управления с указанным именем и набором свойств.
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181
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182 =back
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183
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184 =cut