Mercurial > pub > Impl
annotate Lib/IMPL/Web/View/TTControl.pm @ 253:0a228a35645c
added application exception class
| author | sergey |
|---|---|
| date | Mon, 19 Nov 2012 17:54:01 +0400 |
| parents | f48a1a9f4fa2 |
| children | 6b6d4b2275a1 |
| rev | line source |
|---|---|
| 181 | 1 package IMPL::Web::View::TTControl; |
| 2 use strict; | |
| 3 | |
| 234 | 4 use IMPL::Const qw(:prop); |
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5 use IMPL::lang qw(:hash); |
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6 use Scalar::Util qw(blessed); |
| 234 | 7 use IMPL::declare { |
| 8 require => { | |
| 9 TTContext => 'Template::Context', | |
| 10 Exception => 'IMPL::Exception', | |
| 238 | 11 ArgumentException => '-IMPL::InvalidArgumentException', |
| 12 OperationException => '-IMPL::InvalidOperationException' | |
| 234 | 13 }, |
| 14 base => [ | |
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15 'IMPL::Object' => undef |
| 234 | 16 ], |
| 17 props => [ | |
| 18 id => PROP_RO, | |
| 238 | 19 attributes => PROP_RW, |
| 20 name => PROP_RO, | |
| 234 | 21 context => PROP_RO, |
| 22 template => PROP_RO | |
| 23 ] | |
| 24 }; | |
| 25 | |
| 181 | 26 |
| 187 | 27 { |
| 194 | 28 my $nextId = 1; |
| 29 sub _GetNextId { | |
| 30 return $nextId++; | |
| 31 } | |
| 187 | 32 } |
| 181 | 33 |
| 238 | 34 our $AutoloadRegex = qr/^[a-z]/; |
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35 our @REFLECT_META = qw(title layout); |
| 238 | 36 |
| 181 | 37 sub CTOR { |
| 194 | 38 my ($this,$name,$template,$context,$refProps) = @_; |
| 39 | |
| 40 $name ||= "control"; | |
| 41 | |
| 42 $this->template( $template ) or die new IMPL::ArgumentException("A template is required"); | |
| 43 $this->context( $context ) or die new IMPL::ArgumentException("A context is required"); | |
| 44 | |
| 45 $this->id($name . "-" . _GetNextId()) unless $this->id; | |
| 46 | |
| 238 | 47 $this->name($name); |
| 48 $this->attributes({}); | |
| 194 | 49 |
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50 my %attrs; |
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51 |
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52 foreach my $meta ( @REFLECT_META ) { |
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53 next if $meta =~ /^_/; |
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54 if( my $value = $template->$meta() ) { |
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55 $attrs{$meta} = $value; |
| 238 | 56 } |
| 57 } | |
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58 |
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59 hashApply(\%attrs,$refProps) if ref $refProps eq 'HASH'; |
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60 |
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61 while (my($key,$value) = each %attrs) { |
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62 $this->SetAttribute($key,$value); |
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63 } |
| 181 | 64 } |
| 65 | |
| 191 | 66 sub InitInstance { |
| 194 | 67 my ($this,$args) = @_; |
| 68 | |
| 69 $args ||= {}; | |
| 70 | |
| 71 if ( my $ctor = $this->template->blocks->{CTOR} ) { | |
| 212 | 72 $this->context->include($ctor, { %$args, this => $this, template => $this->template } ); |
| 194 | 73 } |
| 191 | 74 } |
| 75 | |
| 238 | 76 sub GetAttribute { |
| 77 my ($this,$name) = (shift,shift); | |
| 78 | |
| 79 if (my $method = $this->can($name)) { | |
| 80 unshift @_,$this; | |
| 81 goto &$method; | |
| 82 } else { | |
| 83 return $this->attributes->{$name}; | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 sub SetAttribute { | |
| 88 my $this = shift; | |
| 89 my $name = shift; | |
| 90 | |
| 91 if (my $method = $this->can($name)) { | |
| 92 unshift @_, $this; | |
| 93 goto &$method; | |
| 94 } else { | |
| 95 return $this->attributes->{$name} = shift; | |
| 96 } | |
| 97 } | |
| 98 | |
| 234 | 99 sub GetRenderBlock { |
| 194 | 100 $_[0]->template->blocks->{RENDER} || $_[0]->template; |
| 187 | 101 } |
| 102 | |
| 103 sub Render { | |
| 194 | 104 my ($this,$args) = @_; |
| 105 | |
| 106 $args = {} unless ref $args eq 'HASH'; | |
| 107 | |
| 234 | 108 if(my $body = $this->GetRenderBlock ) { |
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109 return $this->context->include( $body, { %$args, this => $this, template => $this->template } ); |
| 194 | 110 } else { |
| 111 return ""; | |
| 112 } | |
| 185 | 113 } |
| 114 | |
| 115 sub AUTOLOAD { | |
| 194 | 116 our $AUTOLOAD; |
| 117 | |
| 118 my $method = ($AUTOLOAD =~ m/(\w+)$/)[0]; | |
| 119 | |
| 120 return if $method eq 'DESTROY'; | |
| 121 | |
| 238 | 122 if ($method =~ /$AutoloadRegex/) { |
| 123 my $this = shift; | |
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124 |
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125 die OperationException->new("can't invoke method '$method' on an unblessed reference") unless blessed $this; |
| 238 | 126 |
| 127 return @_ ? $this->SetAttribute($method,@_) : $this->GetAttribute($method); | |
| 128 } else { | |
| 129 die OperationException->new("The specified method '$method' doesn't exists"); | |
| 130 } | |
| 181 | 131 } |
| 132 | |
| 133 1; | |
| 134 | |
| 135 __END__ | |
| 136 | |
| 137 =pod | |
| 138 | |
| 139 =head1 NAME | |
| 140 | |
| 141 C<IMPL::Web::View::TTControl> | |
| 142 | |
| 143 =head1 SYNPOSIS | |
| 144 | |
| 145 =head1 DESCRIPTION | |
| 146 | |
| 147 =head2 BLOCKS | |
| 148 | |
| 149 =head3 INIT | |
| 150 | |
| 213 | 151 Данный блок шаблона управления выполняется один раз при создании первого экземпляра элемента управления, |
| 152 может использоваться для формирования заголовочной части документа, скрипта подключающего ajax модули | |
| 153 при необходимости и т.п. | |
| 181 | 154 |
| 155 =head3 CTOR | |
| 156 | |
| 157 данный блок выполняется каждый раз при создании нового экземпляра элемента управления, при этом переменная C<this> | |
| 213 | 158 указывает на эземпляр элемента упарвления. Данный блок можно использовать для инициализации свойств элемента |
| 159 управления. | |
| 181 | 160 |
| 161 =head3 RENDER | |
| 162 | |
| 213 | 163 Данный блок выполняется при вызове метода C<Render()>, вывод данного блока и есть результат отображения элемента управления. |
| 164 Если в шаблоне нет блока C<RENDER>, то сам шаблон считается таковым. | |
| 187 | 165 |
| 166 =head2 TEMPLATE VARS | |
| 167 | |
| 168 Каждый шаблон имеет собственное пространство имен, унаследованное от пространства имен фабрики элементов (которая в свою очередь наследует контекст документа). | |
| 169 В шаблоне могут определяться новые переменные, которые разделяются между блоками. Также доступны стандартные переменные | |
| 170 | |
| 171 =over | |
| 172 | |
| 173 =item * C<this> ссылка на объект элемента управления | |
| 174 | |
| 175 =item * C<component> ссылка на текущий шаблон, устанавливается автоматически в методе C<Template::Context::process>. | |
| 176 | |
| 177 =item * C<template> ссылка на шаблон элемента управления, для совместимости с C<TT> | |
| 178 | |
| 179 =back | |
| 180 | |
| 181 =head1 MEMBERS | |
| 182 | |
| 183 =over | |
| 184 | |
| 185 =item * C<[get]context> | |
| 186 | |
| 187 Контекст элемента управления, хранит пременные шаблона. Наследуется от контекста фабрики элементов управления, который | |
| 188 наследуется от контекста документа. | |
| 189 | |
| 190 =item * C<[get,set]template> | |
| 191 | |
| 192 C<Template::Document> Шаблон элемента управления. | |
| 193 | |
| 194 =item * C<AUTOLOAD> | |
| 195 | |
| 196 Для удобства работы с шаблоном, элементы управления предоставляю доступ к своим свойствам через метод C<AUTOLOAD>. | |
| 197 | |
| 198 =back | |
| 181 | 199 |
| 200 | |
| 201 C<lang ru> | |
| 202 | |
| 203 =cut |