Mercurial > pub > Impl
annotate Lib/IMPL/Web/TT/Document.pm @ 124:e30bdd040fe3
IMPL::Web::TT::Form concept
| author | wizard |
|---|---|
| date | Thu, 10 Jun 2010 02:45:59 +0400 |
| parents | 92c850d0bdb9 |
| children | 0dce0470a3d8 |
| rev | line source |
|---|---|
| 77 | 1 package IMPL::Web::TT::Document; |
| 49 | 2 use strict; |
| 3 use warnings; | |
| 4 | |
| 75 | 5 use base qw(IMPL::DOM::Document IMPL::Object::Disposable); |
| 49 | 6 use Template::Context; |
| 7 use Template::Provider; | |
| 8 use IMPL::Class::Property; | |
| 9 use File::Spec; | |
| 77 | 10 use Scalar::Util qw(blessed); |
| 107 | 11 use IMPL::Web::TT::Collection; |
| 12 use IMPL::Web::TT::Control; | |
|
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13 use Carp; |
| 49 | 14 |
| 15 BEGIN { | |
| 77 | 16 private property _provider => prop_all; |
| 17 private property _context => prop_all; | |
| 18 public property template => prop_get | owner_set; | |
| 19 public property presenter => prop_all, { validate => \&_validatePresenter }; | |
| 108 | 20 private property _controlClassMap => prop_all; |
| 49 | 21 } |
| 22 | |
| 23 our %CTOR = ( | |
| 75 | 24 'IMPL::DOM::Document' => sub { nodeName => 'document' } |
| 49 | 25 ); |
| 26 | |
| 107 | 27 sub CTOR { |
| 28 my ($this) = @_; | |
| 29 | |
| 108 | 30 $this->_controlClassMap({}); |
| 31 $this->registerControlClass( Control => 'IMPL::Web::TT::Control' ); | |
| 32 $this->appendChild( $this->Create(body => 'IMPL::Web::TT::Collection') ); | |
| 33 $this->appendChild( $this->Create(head => 'IMPL::Web::TT::Collection') ); | |
| 34 } | |
| 35 | |
| 36 sub CreateControl { | |
| 37 my ($this,$name,$class,$args) = @_; | |
| 38 | |
| 39 $args = {} unless ref $args eq 'HASH'; | |
| 40 | |
| 41 if (my $info = $this->_controlClassMap->{$class}) { | |
| 42 my %nodeArgs = (%{$info->{args}},%$args); | |
| 43 $nodeArgs{controlClass} = $class; | |
| 44 | |
| 45 return $this->Create($name,$info->{type},\%nodeArgs); | |
| 46 } else { | |
| 47 die new IMPL::Exception('A control is\'t registered', $class, $name); | |
| 48 } | |
| 107 | 49 } |
| 50 | |
| 77 | 51 sub provider { |
| 49 | 52 my ($this,%args) = @_; |
| 53 | |
| 77 | 54 if (my $provider = $this->_provider) { |
| 49 | 55 return $provider; |
| 56 } else { | |
| 77 | 57 return $this->_provider(new Template::Provider( |
| 49 | 58 \%args |
| 59 )); | |
| 60 } | |
| 61 } | |
| 62 | |
| 77 | 63 sub context { |
| 49 | 64 my ($this) = @_; |
| 65 | |
| 77 | 66 if (my $ctx = $this->_context) { |
| 49 | 67 return $ctx; |
| 68 } else { | |
| 77 | 69 return $this->_context ( |
| 49 | 70 new Template::Context( |
| 71 VARIABLES => { | |
| 77 | 72 document => $this, |
| 73 this => $this, | |
| 74 render => sub { | |
| 75 $this->_process(@_); | |
| 108 | 76 } |
| 49 | 77 }, |
| 78 TRIM => 1, | |
| 79 RECURSION => 1, | |
| 77 | 80 LOAD_TEMPLATES => [$this->provider] |
| 49 | 81 ) |
| 82 ) | |
| 83 } | |
| 84 } | |
| 85 | |
| 108 | 86 sub registerControlClass { |
| 87 my ($this, $controlClass, $type, $args) = @_; | |
| 88 | |
| 89 $type ||= 'IMPL::Web::TT::Control'; | |
| 90 | |
| 91 die new IMPL::InvalidArgumentException("A controlClass must be a single word",$controlClass) unless $controlClass =~ /^\w+$/; | |
| 107 | 92 |
| 117 | 93 eval "require $type; 1;" or die new IMPL::Exception("Failed to load a module",$type,"$@") unless eval { $type->can('new') }; |
| 108 | 94 |
| 95 die new IMPL::InvalidArgumentException("A type must be subclass of IMPL::DOM::Node",$type) unless $type->isa('IMPL::DOM::Node'); | |
| 96 | |
| 97 $this->_controlClassMap->{$controlClass} = { | |
| 98 controlClass => $controlClass, | |
| 99 type => $type, | |
| 100 args => ref $args eq 'HASH' ? $args : {} | |
| 101 }; | |
| 107 | 102 } |
| 103 | |
| 117 | 104 sub require { |
| 105 my ($this,$template) = @_; | |
| 106 | |
| 107 my $doc = $this->context->template($template); | |
| 108 | |
| 109 die new IMPL::InvalidOperationException("A specified template isn't a document",$template) unless eval{ $doc -> isa('Template::Document') }; | |
| 110 | |
| 111 my $controlClass = $doc->class; | |
| 112 my $type = $doc->nativeType; | |
| 113 my $controlTemplate; | |
| 114 my $out = ""; | |
| 115 | |
| 116 die new IMPL::InvalidOperationException("A specified template isn't a control",$template) unless $controlClass; | |
| 117 | |
| 118 if (not $this->isControlClass($controlClass)) { | |
| 119 if ($doc->template) { | |
| 120 $controlTemplate = $doc->blocks()->{$doc->template} || $this->context->template($doc->template); | |
| 121 $out = $this->context->process($doc); | |
| 122 } else { | |
| 123 $controlTemplate = $doc; | |
| 124 } | |
| 125 $this->registerControlClass($controlClass,$type,{ template => $controlTemplate } ); | |
| 126 } | |
| 127 | |
| 128 return $out; | |
| 129 } | |
| 130 | |
|
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ddf0f037d460
IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
wizard
parents:
108
diff
changeset
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131 sub isControlClass { |
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ddf0f037d460
IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
wizard
parents:
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diff
changeset
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132 my ($this,$name) = @_; |
|
ddf0f037d460
IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
wizard
parents:
108
diff
changeset
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133 return $this->_controlClassMap->{$name} ? 1 : 0; |
|
ddf0f037d460
IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
wizard
parents:
108
diff
changeset
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134 } |
|
ddf0f037d460
IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
wizard
parents:
108
diff
changeset
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135 |
| 107 | 136 sub _getControls { |
| 137 my ($this) = @_; | |
| 138 | |
| 139 my ($node) = $this->selectNodes('controls'); | |
| 140 return $node; | |
| 141 } | |
| 142 | |
| 77 | 143 sub _validatePresenter { |
| 144 my ($this,$value) = @_; | |
| 145 | |
| 146 die new IMPL::InvalidArgumentException("A view object is required") unless blessed($value) and $value->isa('Template::View'); | |
| 147 } | |
| 148 | |
| 149 sub LoadFile { | |
| 121 | 150 my ($this,$filePath,$encoding,@includes) = @_; |
| 49 | 151 |
| 152 die new IMPL::InvalidArgumentException("A filePath parameter is required") unless $filePath; | |
| 153 | |
| 154 $encoding ||= 'utf8'; | |
| 155 | |
| 77 | 156 $this->_context(undef); |
| 157 $this->_provider(undef); | |
| 49 | 158 |
| 159 my ($vol,$dir,$fileName) = File::Spec->splitpath($filePath); | |
| 160 | |
| 161 my $inc = File::Spec->catpath($vol,$dir,''); | |
| 162 | |
| 77 | 163 $this->provider( |
| 49 | 164 ENCODING => $encoding, |
| 165 INTERPOLATE => 1, | |
| 166 PRE_CHOMP => 1, | |
| 167 POST_CHOMP => 1, | |
| 121 | 168 INCLUDE_PATH => [$inc,@includes] |
| 49 | 169 ); |
| 170 | |
| 77 | 171 $this->template($this->context->template($fileName)); |
| 49 | 172 } |
| 173 | |
| 97 | 174 sub AddVar { |
| 175 my ($this,$name,$value) = @_; | |
| 176 | |
| 177 $this->context->stash->set($name,$value); | |
| 178 } | |
| 179 | |
| 77 | 180 sub title { |
| 181 $_[0]->template->title; | |
| 49 | 182 } |
| 183 | |
| 184 sub Render { | |
| 185 my ($this) = @_; | |
| 186 | |
| 77 | 187 return $this->template->process($this->context); |
| 188 } | |
| 189 | |
| 190 # Формирует представление для произвольных объектов | |
| 191 sub _process { | |
| 192 my ($this,@items) = @_; | |
| 193 | |
| 194 my @result; | |
| 195 | |
| 196 foreach my $item (@items) { | |
| 197 if (blessed($item) and $item->isa('IMPL::Web::TT::Control')) { | |
| 198 push @result, $item->Render(); | |
| 199 } elsif(blessed($item)) { | |
| 200 if ($this->presenter) { | |
| 201 push @result, $this->presenter->print($item); | |
| 202 } else { | |
| 203 push @result, $this->toString; | |
| 204 } | |
| 205 } else { | |
| 206 push @result, $item; | |
| 207 } | |
| 208 } | |
| 209 | |
| 107 | 210 return join '',@result; |
| 49 | 211 } |
| 212 | |
| 108 | 213 our $AUTOLOAD; |
| 214 sub AUTOLOAD { | |
| 215 my $this = shift; | |
| 216 my ($method) = ($AUTOLOAD =~ /(\w+)$/); | |
| 217 | |
| 218 if($method =~ /^create(\w+)/) { | |
| 219 my ($name,$args) = @_; | |
| 220 return $this->CreateControl($name,$1,$args); | |
| 221 } | |
| 222 | |
| 223 my @result = $this->selectNodes($method); | |
| 224 | |
| 225 return $result[0] if @result; | |
|
109
ddf0f037d460
IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
wizard
parents:
108
diff
changeset
|
226 carp "Looks like you have a mistake, document doesn't have a such property or child: $method"; |
| 108 | 227 return; |
| 228 } | |
| 229 | |
| 230 sub as_list { | |
| 231 $_[0]->childNodes; | |
| 232 } | |
| 233 | |
| 49 | 234 sub Dispose { |
| 235 my ($this) = @_; | |
| 236 | |
| 77 | 237 $this->template(undef); |
| 238 $this->_context(undef); | |
| 239 $this->_provider(undef); | |
| 49 | 240 |
| 108 | 241 $this->supercall::Dispose(); |
| 49 | 242 } |
| 243 | |
| 244 1; | |
| 245 __END__ | |
| 246 =pod | |
| 247 | |
| 77 | 248 =head1 NAME |
| 249 | |
| 250 C<IMPL::Web::TT::Document> - Документ, позволяющий строить представление по шаблону | |
| 251 | |
| 49 | 252 =head1 SYNOPSIS |
| 253 | |
| 75 | 254 =begin code |
| 255 | |
| 49 | 256 // create new document |
| 77 | 257 my $doc = new IMPL::Web::TT::Document; |
| 49 | 258 |
| 259 // load template | |
| 260 $doc->loadFile('Templates/index.tt'); | |
| 261 | |
| 262 // render file | |
| 263 print $doc->Render(); | |
| 264 | |
| 75 | 265 =end code |
| 266 | |
| 49 | 267 =head1 DESCRIPTION |
| 268 | |
| 77 | 269 C<use base qw(IMPL::DOM::Document)> |
| 270 | |
| 49 | 271 Документ, основанный на шаблоне Template::Toolkit. Позволяет загрузить шаблон, |
| 272 и сформировать окончательный документ. Является наследником C<IMPL::DOM::Node>, | |
| 273 т.о. может быть использован для реализации DOM модели. | |
| 274 | |
| 275 Внутри шаблона переменная C<document> ссылается на объект документа. По этой | |
| 276 причине образуется циклическая ссылка между объектами шаблона и документом, что | |
| 277 требует вызова метода C<Dispose> для освобождения документа. | |
| 278 | |
| 279 =head1 METHODS | |
| 280 | |
| 77 | 281 =over |
| 49 | 282 |
| 77 | 283 =item C<CTOR()> |
| 49 | 284 |
| 77 | 285 Создает новый экземпляр документа, свойство C<nodeName> устанавливается в 'C<document>' |
| 49 | 286 |
| 77 | 287 =item C<$doc->LoadFile($fileName,$encoding)> |
| 49 | 288 |
| 289 Загружает шаблон из файла C<$fileName>, используя кодировку C<$encoding>. Если | |
| 290 кодировка не указана, использует utf-8. | |
| 291 | |
| 292 =item C<$doc->Render()> | |
| 293 | |
| 294 Возвращает данные построенные на основе загруженного шаблона. | |
| 295 | |
| 296 =item C<$doc->Dispose()> | |
| 297 | |
| 298 Освобождает ресурсы и помечает объект как освобожденный. | |
| 299 | |
| 300 =back | |
| 301 | |
| 76 | 302 =head1 DOM |
| 303 | |
| 108 | 304 Документ представляет собой DOM документ, состоящий из узлов, которые представляют собой данные |
| 305 для отображения. Для форматированого вывода используется C<template>. | |
| 306 | |
| 307 В качестве элементов документа могут присутсвовать специальные объекты C<IMPL::Web::TT::Control>, | |
| 308 которые внутри содержат шаблон для форматирования собственного содержимого. | |
| 309 | |
| 310 | |
| 311 | |
| 312 Документ предоставляет ряд фнукций для работы с элементами управления. | |
| 313 | |
| 314 =head1 TEMPLATE | |
| 315 | |
| 77 | 316 =begin code html |
| 76 | 317 |
| 108 | 318 [% CALL document.registerClass( 'Table', 'My::TableClass', template => 'tables/pretty.tt' ) %] |
| 319 [% CALL document.registerClass( 'Form' )%] | |
| 320 | |
| 321 [% table = document.сreateTable('env') %] | |
| 76 | 322 |
| 323 [% FOEACH item in document.result %] | |
| 324 [% table.rows.Add( item.get('name','value') ) %] | |
| 325 [% END %] | |
| 326 | |
| 108 | 327 [% form = document.createForm('login') %] |
| 77 | 328 [% form.template = 'LOGIN_FORM'%] |
| 329 | |
| 330 [% FOREACH item IN document.childNodes %] | |
| 331 [%render(item)%] | |
| 76 | 332 [% END %] |
| 333 | |
| 77 | 334 [% BLOCK LOGIN_FORM %] |
| 335 <form method="POST" action='/login.pl'> | |
| 336 user: [% render(this.item('name')) %] password: [% render(this.item('password')) %] <input type="submit"/> | |
| 337 </form> | |
| 338 [% END %] | |
| 76 | 339 |
| 77 | 340 =end code html |
| 76 | 341 |
| 49 | 342 =cut |