annotate Lib/IMPL/Web/View/TTControl.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::TTControl;
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2 use strict;
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3
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4 use IMPL::Const qw(:prop);
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5 use IMPL::declare {
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6 require => {
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7 TTContext => 'Template::Context',
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8 Exception => 'IMPL::Exception',
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9 ArgumentException => '-IMPL::InvalidArgumentException',
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10 OperationException => '-IMPL::InvalidOperationException'
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11 },
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12 base => [
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13 'IMPL::Object' => '@_'
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14 ],
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15 props => [
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16 id => PROP_RO,
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17 attributes => PROP_RW,
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18 name => PROP_RO,
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19 context => PROP_RO,
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20 template => PROP_RO
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21 ]
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22 };
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23
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24
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25 {
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26 my $nextId = 1;
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27 sub _GetNextId {
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28 return $nextId++;
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29 }
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30 }
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31
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32 our $AutoloadRegex = qr/^[a-z]/;
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33
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34 sub CTOR {
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35 my ($this,$name,$template,$context,$refProps) = @_;
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36
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37 $name ||= "control";
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38
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39 $this->template( $template ) or die new IMPL::ArgumentException("A template is required");
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40 $this->context( $context ) or die new IMPL::ArgumentException("A context is required");
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41
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42 $this->id($name . "-" . _GetNextId()) unless $this->id;
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43
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44 $this->name($name);
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45 $this->attributes({});
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46
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47 if (ref $refProps eq 'HASH') {
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48 while (my($key,$value) = each %$refProps) {
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49 $this->SetAttribute($key,$value);
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50 }
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51 }
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52 }
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53
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54 sub InitInstance {
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55 my ($this,$args) = @_;
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56
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57 $args ||= {};
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58
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59 if ( my $ctor = $this->template->blocks->{CTOR} ) {
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60 $this->context->include($ctor, { %$args, this => $this, template => $this->template } );
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61 }
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62 }
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63
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64 sub GetAttribute {
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65 my ($this,$name) = (shift,shift);
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66
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67 if (my $method = $this->can($name)) {
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68 unshift @_,$this;
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69 goto &$method;
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70 } else {
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71 return $this->attributes->{$name};
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72 }
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73 }
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74
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75 sub SetAttribute {
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76 my $this = shift;
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77 my $name = shift;
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78
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79 if (my $method = $this->can($name)) {
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80 unshift @_, $this;
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81 goto &$method;
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82 } else {
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83 return $this->attributes->{$name} = shift;
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84 }
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85 }
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86
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87 sub GetRenderBlock {
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88 $_[0]->template->blocks->{RENDER} || $_[0]->template;
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89 }
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90
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91 sub Render {
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92 my ($this,$args) = @_;
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93
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94 $args = {} unless ref $args eq 'HASH';
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95
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96 if(my $body = $this->GetRenderBlock ) {
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97 return $this->context->include( $body, { %$args, this => $this, template => $this->template, document => $this->document } );
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98 } else {
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99 return "";
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100 }
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101 }
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102
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103 sub AUTOLOAD {
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104 our $AUTOLOAD;
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105
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106 my $method = ($AUTOLOAD =~ m/(\w+)$/)[0];
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107
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108 return if $method eq 'DESTROY';
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110 if ($method =~ /$AutoloadRegex/) {
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111 my $this = shift;
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112
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113 return @_ ? $this->SetAttribute($method,@_) : $this->GetAttribute($method);
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114 } else {
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115 die OperationException->new("The specified method '$method' doesn't exists");
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116 }
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117 }
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118
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119 1;
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120
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121 __END__
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122
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123 =pod
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124
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125 =head1 NAME
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126
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127 C<IMPL::Web::View::TTControl>
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128
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129 =head1 SYNPOSIS
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130
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131 =head1 DESCRIPTION
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132
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133 =head2 BLOCKS
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134
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135 =head3 INIT
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136
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137 Данный блок шаблона управления выполняется один раз при создании первого экземпляра элемента управления,
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138 может использоваться для формирования заголовочной части документа, скрипта подключающего ajax модули
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139 при необходимости и т.п.
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140
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141 =head3 CTOR
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142
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143 данный блок выполняется каждый раз при создании нового экземпляра элемента управления, при этом переменная C<this>
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144 указывает на эземпляр элемента упарвления. Данный блок можно использовать для инициализации свойств элемента
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145 управления.
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146
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147 =head3 RENDER
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148
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149 Данный блок выполняется при вызове метода C<Render()>, вывод данного блока и есть результат отображения элемента управления.
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150 Если в шаблоне нет блока C<RENDER>, то сам шаблон считается таковым.
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151
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152 =head2 TEMPLATE VARS
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153
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154 Каждый шаблон имеет собственное пространство имен, унаследованное от пространства имен фабрики элементов (которая в свою очередь наследует контекст документа).
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155 В шаблоне могут определяться новые переменные, которые разделяются между блоками. Также доступны стандартные переменные
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156
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157 =over
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158
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159 =item * C<this> ссылка на объект элемента управления
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160
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161 =item * C<component> ссылка на текущий шаблон, устанавливается автоматически в методе C<Template::Context::process>.
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162
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163 =item * C<template> ссылка на шаблон элемента управления, для совместимости с C<TT>
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164
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165 =back
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166
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167 =head1 MEMBERS
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168
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169 =over
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170
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171 =item * C<[get]context>
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172
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173 Контекст элемента управления, хранит пременные шаблона. Наследуется от контекста фабрики элементов управления, который
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174 наследуется от контекста документа.
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175
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176 =item * C<[get,set]template>
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177
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178 C<Template::Document> Шаблон элемента управления.
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179
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180 =item * C<AUTOLOAD>
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181
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182 Для удобства работы с шаблоном, элементы управления предоставляю доступ к своим свойствам через метод C<AUTOLOAD>.
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183
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184 =back
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186
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187 C<lang ru>
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188
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189 =cut