Mercurial > pub > Impl
annotate Lib/IMPL/Web/View/TTContext.pm @ 356:97131d500f16
TTView: added identifiers support
| author | cin |
|---|---|
| date | Thu, 17 Oct 2013 17:48:50 +0400 |
| parents | 8dfb9df07d02 |
| children | 833e663796c4 |
| rev | line source |
|---|---|
| 343 | 1 package IMPL::Web::View::TTContext; |
| 2 use strict; | |
| 3 use Template::Base; | |
| 348 | 4 use Carp qw(carp); |
| 349 | 5 use File::Spec(); |
| 6 use IMPL::Resources::Format qw(FormatMessage); | |
| 7 use IMPL::Resources::Strings(); | |
| 343 | 8 |
| 348 | 9 use IMPL::Exception(); |
| 349 | 10 use IMPL::lang qw(is typeof hashApply hashMerge); |
| 343 | 11 use IMPL::declare { |
| 348 | 12 require => { |
| 13 Document => '-Template::Document', | |
| 14 TypeKeyedCollection => 'IMPL::TypeKeyedCollection', | |
| 349 | 15 ArgException => '-IMPL::InvalidArgumentException', |
| 352 | 16 Resources => 'IMPL::Resources', |
| 17 Loader => 'IMPL::Code::Loader' | |
| 348 | 18 }, |
| 19 base => [ | |
| 343 | 20 'Template::Context' => '@_' |
| 348 | 21 ] |
| 343 | 22 }; |
| 23 | |
| 347 | 24 BEGIN { |
| 348 | 25 no strict 'refs'; |
| 347 | 26 foreach my $prop (qw( |
| 348 | 27 root |
| 347 | 28 base |
| 29 tt_ext | |
| 348 | 30 tt_cache |
| 347 | 31 parent |
| 32 prefix | |
| 348 | 33 cache |
| 34 includes | |
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35 modules |
| 352 | 36 aliases |
| 356 | 37 id |
| 347 | 38 )) { |
| 39 my $t = $prop; | |
| 40 | |
| 348 | 41 *{__PACKAGE__ . '::' . $prop} = sub { |
| 347 | 42 my $this = shift; |
| 43 return @_ ? $this->stash->set($t, @_) : $this->stash->get($t); | |
| 44 } | |
| 45 } | |
| 46 } | |
| 47 | |
| 343 | 48 sub clone { |
| 49 my $this = shift; | |
| 347 | 50 my $params = shift; |
| 343 | 51 |
| 52 $this->localise(); | |
| 53 | |
| 54 my $args = { %{$this} }; | |
| 55 | |
| 56 $this->delocalise(); | |
| 57 | |
| 348 | 58 my $class = ref($this); |
| 343 | 59 |
| 60 delete $args->{CONFIG}; | |
| 61 | |
| 347 | 62 my $clone = $class->new($args); |
| 63 | |
| 64 $clone->stash->update($params) if $params; | |
| 65 | |
| 66 return $clone; | |
| 345 | 67 } |
| 68 | |
| 356 | 69 sub get_next_id { |
| 70 my ($this) = @_; | |
| 71 | |
| 72 my $id = $this->stash->get('document.nextId') || 0; | |
| 73 $this->stash->set('document.nextId', $id + 1); | |
| 74 return "w-$id"; | |
| 75 } | |
| 76 | |
| 345 | 77 sub find_template { |
| 348 | 78 my ($this,$name) = @_; |
| 79 | |
| 80 my $cache = $this->tt_cache; | |
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81 |
| 348 | 82 $this->tt_cache($cache = {}) unless $cache; |
| 345 | 83 |
| 348 | 84 if(my $tpl = $cache->{$name}) { |
| 85 return $tpl; | |
| 86 } | |
| 87 | |
| 88 my @inc = ($this->base, @{$this->includes || []}); | |
| 89 | |
| 345 | 90 my $ext = $this->tt_ext || ""; |
| 348 | 91 |
| 92 my $file; | |
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93 |
| 345 | 94 foreach my $dir (@inc) { |
| 348 | 95 $file = $dir ? "$dir/$name" : $name; |
| 96 | |
| 97 my $base = join('/',splice([split(/\/+/,$file)],0,-1)); | |
| 98 | |
| 99 $file = $ext ? "$file.$ext" : $file; | |
| 100 | |
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101 if (exists($this->modules->{$file})) { |
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102 my $info = $this->modules->{$file}; |
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103 return $cache->{$name} = $info |
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104 if $info; |
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105 } else { |
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106 if( my $tt = eval { $this->template($file) } ) { |
| 352 | 107 my $class; |
| 108 if ($class = $tt->class) { | |
| 109 $class = $this->aliases->{$class} || $class; | |
| 110 Loader->safe->Require($class); | |
| 111 } | |
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112 my $info = { |
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113 base => $base, |
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114 labels => $this->load_labels($file), |
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115 template => $tt, |
| 352 | 116 initialized => 0, |
| 117 class => $class | |
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118 }; |
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119 $this->modules->{$file} = $info; |
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120 return $cache->{$name} = $info; |
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121 } else { |
| 353 | 122 my $err = $@; |
| 123 | |
| 124 for(my $t = $err; is($t,'Template::Exception'); $t = $t->info ) { | |
| 125 die $err unless $t->type eq Template::Constants::ERROR_FILE; | |
| 126 } | |
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127 $this->modules->{$file} = undef; |
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128 } |
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129 } |
| 345 | 130 } |
| 131 | |
| 132 $this->throw(Template::Constants::ERROR_FILE, "$name: not found"); | |
| 133 } | |
| 134 | |
| 347 | 135 sub display { |
| 136 my $this = shift; | |
| 137 my $model = shift; | |
| 348 | 138 my ($template, $args); |
| 347 | 139 |
| 140 if (ref $_[0] eq 'HASH') { | |
| 141 $args = shift; | |
| 142 } else { | |
| 143 $template = shift; | |
| 144 $args = shift; | |
| 145 } | |
| 146 | |
| 348 | 147 my $prefix = $this->prefix; |
| 148 | |
| 354 | 149 my $info; |
| 150 | |
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151 if (not(($args and delete $args->{_no_resolve}) or ref $model)) { |
| 354 | 152 $info = $this->resolve_model($model,$args); |
| 348 | 153 } else { |
| 354 | 154 $info = { |
| 155 model => $model, | |
| 156 prefix => "" | |
| 157 }; | |
| 348 | 158 } |
| 159 | |
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160 $template ||= $info->{template}; |
| 354 | 161 $template = $template ? $this->find_template($template) : $this->find_template_for($info->{model}); |
| 348 | 162 |
| 163 return $this->render( | |
| 164 $template, | |
| 165 hashApply( | |
| 354 | 166 $info, |
| 348 | 167 $args |
| 168 ) | |
| 169 ); | |
| 170 } | |
| 171 | |
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172 sub display_model { |
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173 my $this = shift; |
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174 my $model = shift; |
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175 my ($template, $args); |
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176 |
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177 if (ref $_[0] eq 'HASH') { |
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178 $args = shift; |
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179 } else { |
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180 $template = shift; |
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181 $args = shift; |
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182 } |
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183 |
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184 $args ||= {}; |
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185 |
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186 my $prefix = delete $args->{prefix} || $this->prefix; |
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187 |
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188 if (my $rel = delete $args->{rel}) { |
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189 $prefix = $prefix ? "${prefix}.${rel}" : $rel; |
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190 } |
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191 |
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192 $template = $template ? $this->find_template($template) : $this->find_template_for($model); |
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193 |
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194 return $this->render( |
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195 $template, |
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196 hashApply( |
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197 { |
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198 prefix => $prefix, |
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199 model => $model, |
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200 }, |
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201 $args |
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202 ) |
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203 ); |
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204 } |
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205 |
| 348 | 206 sub invoke_environment { |
| 207 my ($this,$code,$env) = @_; | |
| 208 | |
| 209 $env ||= {}; | |
| 210 | |
| 354 | 211 my $ctx = ($this->root || $this)->clone(); |
| 212 | |
| 348 | 213 my $out = eval { |
| 354 | 214 $ctx->localise( |
| 348 | 215 hashApply( |
| 216 { | |
| 352 | 217 aliases => $this->aliases || {}, |
| 354 | 218 root => $this->root || $ctx, |
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219 modules => $this->modules || {}, |
| 348 | 220 cache => TypeKeyedCollection->new(), |
| 221 display => sub { | |
| 354 | 222 $ctx->display(@_); |
| 348 | 223 }, |
| 224 render => sub { | |
| 354 | 225 $ctx->render(@_); |
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226 }, |
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227 display_model => sub { |
| 354 | 228 $ctx->display_model(@_); |
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229 }, |
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230 tt_cache => {} |
| 348 | 231 }, |
| 232 $env | |
| 233 ) | |
| 234 ); | |
| 235 | |
| 354 | 236 &$code($ctx); |
| 348 | 237 }; |
| 238 | |
| 239 my $e = $@; | |
| 354 | 240 $ctx->delocalise(); |
| 348 | 241 |
| 242 die $e if $e; | |
| 243 | |
| 244 return $out; | |
| 245 } | |
| 246 | |
| 247 sub render { | |
| 248 my ($this,$template,$args) = @_; | |
| 249 | |
| 250 $args ||= {}; | |
| 251 | |
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252 my $info = ref $template ? $template : $this->find_template($template); |
| 348 | 253 |
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254 if (ref($info) ne 'HASH') { |
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255 carp "got an invalid template object: $info (" . ref($info) . ")"; |
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256 $info = { |
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257 template => $info, |
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258 base => $this->base, |
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259 initialized => 1 |
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260 }; |
| 348 | 261 } |
| 262 | |
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263 return $this->invoke_environment( |
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264 sub { |
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265 my $ctx = shift; |
| 352 | 266 |
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267 unless($info->{initialized}) { |
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268 if(my $init = $info->{template}->blocks->{INIT}) { |
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269 $info->{initialized} = 1; |
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270 eval { |
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271 $ctx->visit($info->{template}->blocks); |
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272 $ctx->include($init); |
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273 }; |
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274 $ctx->leave(); |
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275 } |
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276 } |
| 352 | 277 |
| 278 if (my $class = $info->{class}) { | |
| 356 | 279 $class->new($ctx,$info->{template},$args)->Render($args); |
| 352 | 280 } else { |
| 281 return $ctx->include($info->{template},$args); | |
| 282 } | |
| 348 | 283 }, |
| 349 | 284 hashMerge( |
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285 $info->{labels} || {}, |
| 349 | 286 { |
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287 base => $info->{base}, |
| 356 | 288 parent => $this, |
| 289 id => $this->get_next_id | |
| 349 | 290 } |
| 291 ) | |
| 348 | 292 ) |
| 293 } | |
| 294 | |
| 295 sub resolve_model { | |
| 354 | 296 my ($this,$prefix,$args) = @_; |
| 348 | 297 |
| 298 die ArgException->new(prefix => "the prefix must be specified") | |
| 299 unless defined $prefix; | |
| 300 | |
| 356 | 301 |
| 348 | 302 |
| 356 | 303 if (my $res = $this->stash->get(['resolve', [$this,$prefix,$args]] ) ) { |
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304 return $res; |
| 354 | 305 } |
| 306 | |
| 348 | 307 my @comp = map { $_, 0 } grep length($_), split(/\.|\[(\d+)\]/, $prefix); |
| 347 | 308 |
| 354 | 309 return { |
| 310 model => $this->stash->get(['model',0,@comp]), | |
| 311 prefix => $this->prefix ? $this->prefix . ".$prefix" : $prefix | |
| 312 }; | |
| 348 | 313 } |
| 314 | |
| 315 sub find_template_for { | |
| 316 my ($this,$model) = @_; | |
| 347 | 317 |
| 348 | 318 my $type = typeof($model); |
| 347 | 319 |
| 348 | 320 return $this->find_template('templates/plain') unless $type; |
| 321 | |
| 322 if (my $template = $this->cache->Get($type)) { | |
| 323 return $template; | |
| 324 } else { | |
| 325 | |
| 326 no strict 'refs'; | |
| 327 | |
| 328 my @isa = $type; | |
| 329 | |
| 330 while (@isa) { | |
| 331 my $sclass = shift @isa; | |
| 332 | |
| 333 (my $name = $sclass) =~ s/:+/_/g; | |
| 334 | |
| 335 $template = $this->find_template("templates/$name"); | |
| 336 | |
| 337 if ($template) { | |
| 338 $this->cache->Set($sclass,$template); | |
| 339 return $template; | |
| 340 } | |
| 341 | |
| 342 push @isa, @{"${sclass}::ISA"}; | |
| 343 } | |
| 344 | |
| 345 } | |
| 346 | |
| 347 return; | |
| 347 | 348 } |
| 349 | |
| 349 | 350 sub get_real_file { |
| 351 my ($this,$fname) = @_; | |
| 352 | |
| 353 my @path = split(/\/+/,$fname); | |
| 354 | |
| 355 foreach my $provider (@{$this->load_templates || []}) { | |
| 356 foreach my $dir (@{$provider->paths || []}) { | |
| 357 my $realName = File::Spec->catfile($dir,@path); | |
| 358 return $realName if -f $realName; | |
| 359 } | |
| 360 } | |
| 361 } | |
| 362 | |
| 363 sub load_labels { | |
| 364 my ($this,$fname) = @_; | |
| 365 | |
| 366 $fname = $this->get_real_file($fname); | |
| 367 | |
| 368 my %vars; | |
| 369 | |
| 370 my $flabels = "$fname.labels"; | |
| 371 | |
| 372 if (-f $flabels) { | |
| 373 | |
| 374 my %labels; | |
| 375 $labels{default} = IMPL::Resources::Strings::ParseStringsMap($flabels); | |
| 376 | |
| 377 while(my($label,$text) = each %{$labels{default}}) { | |
| 378 $vars{$label} = sub { | |
| 379 my ($params) = @_; | |
| 380 my $locale = Resources->currentLocale; | |
| 381 | |
| 382 unless ($labels{$locale}) { | |
| 383 $labels{$locale} = -f "$fname.$locale" ? | |
| 384 IMPL::Resources::Strings::ParseStringsMap("$fname.$locale") : | |
| 385 {}; | |
| 386 } | |
| 387 | |
| 388 return FormatMessage(($labels{$locale}{$label} || $text),$params); | |
| 389 } | |
| 390 } | |
| 391 } | |
| 392 | |
| 393 return \%vars; | |
| 394 } | |
| 395 | |
| 345 | 396 1; |
| 397 | |
| 398 __END__ | |
| 399 | |
| 400 =pod | |
| 401 | |
| 402 =head1 NAME | |
| 403 | |
| 404 C<IMPL::Web::View::TTContext> - доработанная версия контекста | |
| 405 | |
| 406 =head1 DESCRIPTION | |
| 407 | |
| 408 Расширяет функции C<Template::Context> | |
| 409 | |
| 410 =begin plantuml | |
| 411 | |
| 412 @startuml | |
| 413 | |
| 348 | 414 object RootContext { |
| 345 | 415 document |
| 346 | 416 globals |
| 345 | 417 } |
| 418 | |
| 419 object DocumentContext { | |
| 346 | 420 base |
| 421 extends | |
| 422 } | |
| 423 | |
| 424 object ControlContext { | |
| 425 base | |
| 426 extends | |
| 345 | 427 } |
| 428 | |
| 348 | 429 RootContext o-- DocumentContext |
| 430 RootContext o-- ControlContext | |
| 345 | 431 |
| 346 | 432 Document -- DocumentContext |
| 433 Control - ControlContext | |
| 345 | 434 |
| 348 | 435 Loader . RootContext: <<creates>> |
| 346 | 436 Loader . Document: <<creates>> |
| 437 Loader -up- Registry | |
| 345 | 438 |
| 439 @enduml | |
| 440 | |
| 441 =end plantuml | |
| 442 | |
| 443 =head1 MEMBERS | |
| 444 | |
| 445 =head2 C<[get,set]base> | |
| 446 | |
| 447 Префикс пути для поиска шаблонов | |
| 448 | |
| 449 =head2 C<template($name)> | |
| 450 | |
| 451 Сначала пытается загрузить шаблон используя префикс C<base>, затем без префикса. | |
| 452 | |
| 453 =head2 C<clone()> | |
| 454 | |
| 455 Создает копию контекста, при этом C<stash> локализуется, таким образом | |
| 456 клонированный контекст имеет собственное пространство имен, вложенное в | |
| 457 пространство родительского контекста. | |
| 458 | |
| 459 =cut |
