| 1 |
package Message::DOM::CSSStyleDeclaration; |
| 2 |
use strict; |
| 3 |
our $VERSION=do{my @r=(q$Revision: 1.14 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r}; |
| 4 |
push our @ISA, 'Message::IF::CSSStyleDeclaration', |
| 5 |
'Message::IF::CSS2Properties'; |
| 6 |
|
| 7 |
my $serialize_value = sub ($$$) { |
| 8 |
my ($self, $prop_name, $value) = @_; |
| 9 |
if ($value->[0] eq 'NUMBER' or $value->[0] eq 'WEIGHT') { |
| 10 |
## TODO: What we currently do for 'font-weight' is different from |
| 11 |
## any browser for lighter/bolder cases. We need to fix this, but |
| 12 |
## how? |
| 13 |
return $value->[1]; ## TODO: big or small number cases? |
| 14 |
} elsif ($value->[0] eq 'DIMENSION') { |
| 15 |
return $value->[1] . $value->[2]; ## NOTE: This is what browsers do. |
| 16 |
} elsif ($value->[0] eq 'PERCENTAGE') { |
| 17 |
return $value->[1] . '%'; |
| 18 |
} elsif ($value->[0] eq 'KEYWORD') { |
| 19 |
return $value->[1]; |
| 20 |
} elsif ($value->[0] eq 'URI') { |
| 21 |
## NOTE: This is what browsers do. |
| 22 |
return 'url('.$value->[1].')'; |
| 23 |
} elsif ($value->[0] eq 'RGBA') { |
| 24 |
if ($value->[4] == 1) { |
| 25 |
return 'rgb('.$value->[1].', '.$value->[2].', '.$value->[3].')'; |
| 26 |
} elsif ($value->[4] == 0) { |
| 27 |
## TODO: check what browsers do... |
| 28 |
return 'transparent'; |
| 29 |
} else { |
| 30 |
return 'rgba('.$value->[1].', '.$value->[2].', '.$value->[3].', ' |
| 31 |
.$value->[4].')'; |
| 32 |
} |
| 33 |
} elsif ($value->[0] eq 'INHERIT') { |
| 34 |
return 'inherit'; |
| 35 |
} elsif ($value->[0] eq 'DECORATION') { |
| 36 |
my @v = (); |
| 37 |
push @v, 'underline' if $value->[1]; |
| 38 |
push @v, 'overline' if $value->[2]; |
| 39 |
push @v, 'line-through' if $value->[3]; |
| 40 |
push @v, 'blink' if $value->[4]; |
| 41 |
return 'none' unless @v; |
| 42 |
return join ' ', @v; |
| 43 |
} elsif ($value->[0] eq 'QUOTES') { |
| 44 |
return join ' ', map {'"'.$_.'"'} map {$_->[0], $_->[1]} @{$value->[1]}; |
| 45 |
## NOTE: The result string might not be a <'quotes'> if it contains |
| 46 |
## e.g. '"'. In addition, it might not be a <'quotes'> if |
| 47 |
## @{$value->[1]} is empty (which is unlikely as long as the implementation |
| 48 |
## is not broken). |
| 49 |
} elsif ($value->[0] eq 'CONTENT') { |
| 50 |
return join ' ', map { |
| 51 |
$_->[0] eq 'KEYWORD' ? $_->[1] : |
| 52 |
$_->[0] eq 'STRING' ? '"' . $_->[1] . '"' : |
| 53 |
$_->[0] eq 'URI' ? 'url(' . $_->[1] . ')' : |
| 54 |
$_->[0] eq 'ATTR' ? 'attr(' . $_->[2] . ')' : ## TODO: prefix |
| 55 |
$_->[0] eq 'COUNTER' ? 'counter(' . $_->[1] . ', ' . $_->[3] . ')' : |
| 56 |
$_->[0] eq 'COUNTERS' ? 'counters(' . $_->[1] . ', "' . $_->[2] . '", ' . $_->[3] . ')' : |
| 57 |
'' |
| 58 |
} @{$value}[1..$#$value]; |
| 59 |
} elsif ($value->[0] eq 'RECT') { |
| 60 |
## NOTE: Four components are DIMENSIONs. |
| 61 |
return 'rect(' . $value->[1]->[1].$value->[1]->[2] . ', ' |
| 62 |
. $value->[2]->[1].$value->[2]->[2] . ', ' |
| 63 |
. $value->[3]->[1].$value->[3]->[2] . ', ' |
| 64 |
. $value->[4]->[1].$value->[4]->[2] . ')'; |
| 65 |
} elsif ($value->[0] eq 'SETCOUNTER' or $value->[0] eq 'ADDCOUNTER') { |
| 66 |
return join ' ', map {$_->[0], $_->[1]} @$value[1..$#$value]; |
| 67 |
} elsif ($value->[0] eq 'FONT') { |
| 68 |
return join ', ', map { |
| 69 |
if ($_->[0] eq 'STRING') { |
| 70 |
'"'.$_->[1].'"'; ## NOTE: This is what Firefox does. |
| 71 |
} elsif ($_->[0] eq 'KEYWORD') { |
| 72 |
$_->[1]; ## NOTE: This is what Firefox does. |
| 73 |
} else { |
| 74 |
## NOTE: This should be an error. |
| 75 |
'""'; |
| 76 |
} |
| 77 |
} @$value[1..$#$value]; |
| 78 |
} elsif ($value->[0] eq 'CURSOR') { |
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return join ', ', map { |
| 80 |
if ($_->[0] eq 'URI') { |
| 81 |
'url('.$_->[1].')'; ## NOTE: This is what Firefox does. |
| 82 |
} elsif ($_->[0] eq 'KEYWORD') { |
| 83 |
$_->[1]; |
| 84 |
} else { |
| 85 |
## NOTE: This should be an error. |
| 86 |
'""'; |
| 87 |
} |
| 88 |
} @$value[1..$#$value]; |
| 89 |
} else { |
| 90 |
return ''; |
| 91 |
} |
| 92 |
}; # $serialize_value |
| 93 |
|
| 94 |
sub ____new ($) { |
| 95 |
return bless \{}, $_[0]; |
| 96 |
} # ____new |
| 97 |
|
| 98 |
sub AUTOLOAD { |
| 99 |
my $method_name = our $AUTOLOAD; |
| 100 |
$method_name =~ s/.*:://; |
| 101 |
return if $method_name eq 'DESTROY'; |
| 102 |
|
| 103 |
require Whatpm::CSS::Parser; |
| 104 |
my $prop_def = $Whatpm::CSS::Parser::Attr->{$method_name}; |
| 105 |
|
| 106 |
if ($prop_def) { |
| 107 |
no strict 'refs'; |
| 108 |
if (defined $prop_def->{key}) { |
| 109 |
*{ $method_name } = sub { |
| 110 |
## TODO: setter |
| 111 |
|
| 112 |
my $self = $_[0]; |
| 113 |
my $value = $$self->{$prop_def->{key}}; |
| 114 |
if ($value) { |
| 115 |
return $serialize_value->($self, $prop_def->{css}, $value->[0]); |
| 116 |
} else { |
| 117 |
return ''; |
| 118 |
} |
| 119 |
}; |
| 120 |
} elsif ($prop_def->{serialize_shorthand} or |
| 121 |
$prop_def->{serialize_multiple}) { |
| 122 |
*{ $method_name } = sub { |
| 123 |
## TODO: setter |
| 124 |
|
| 125 |
my $self = $_[0]; |
| 126 |
my $v = ($prop_def->{serialize_shorthand} or |
| 127 |
$prop_def->{serialize_multiple})->($self); |
| 128 |
if (defined $v->{$prop_def->{css}}) { |
| 129 |
return $v->{$prop_def->{css}}->[0]; |
| 130 |
} else { |
| 131 |
return ''; |
| 132 |
} |
| 133 |
## ISSUE: If one of shorthand component properties is !important? |
| 134 |
}; |
| 135 |
} else { |
| 136 |
die qq<Implementation error: Can't load serializer for "$AUTOLOAD">; |
| 137 |
} |
| 138 |
goto &{ $AUTOLOAD }; |
| 139 |
} else { |
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require Carp; |
| 141 |
Carp::croak (qq<Can't locate method "$AUTOLOAD">); |
| 142 |
} |
| 143 |
} # AUTOLOAD |
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|
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use overload |
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'@{}' => sub { |
| 147 |
tie my @list, ref $_[0], $_[0]; |
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return \@list; |
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}, |
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fallback => 1; |
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|
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sub TIEARRAY ($$) { $_[1] } |
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|
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## |CSSStyleDeclaration| attributes |
| 155 |
|
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sub css_text ($;$) { |
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## TODO: setter |
| 158 |
|
| 159 |
## NOTE: Where and how white space characters are inserted are |
| 160 |
## intentionally changed from those in browsers so that properties are |
| 161 |
## more prettily printed. |
| 162 |
## See <http://suika.fam.cx/gate/2005/sw/cssText> for what browsers do. |
| 163 |
## TODO: Ordering issue. |
| 164 |
require Whatpm::CSS::Parser; |
| 165 |
my $self = $_[0]; |
| 166 |
my $r = ''; |
| 167 |
my %serialized; |
| 168 |
for (sort {$a cmp $b} grep {$$self->{$_}} keys %$$self) { |
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my $prop_def = $Whatpm::CSS::Parser::Key->{$_}; |
| 170 |
next unless $prop_def; |
| 171 |
|
| 172 |
if ($prop_def->{serialize_multiple}) { |
| 173 |
unless ($serialized{$prop_def->{serialize_multiple}}) { |
| 174 |
$serialized{$prop_def->{serialize_multiple}} = 1; |
| 175 |
my $v = $prop_def->{serialize_multiple}->($self); |
| 176 |
for my $prop_name (sort {$a cmp $b} keys %$v) { |
| 177 |
$r .= ' ' . $prop_name . ': ' . $v->{$prop_name}->[0]; |
| 178 |
$r .= ' ! ' . $v->{$prop_name}->[1] if length $v->{$prop_name}->[1]; |
| 179 |
$r .= ";\n"; |
| 180 |
} |
| 181 |
} |
| 182 |
} else { |
| 183 |
my $value = $$self->{$_}; |
| 184 |
my $s = $serialize_value->($self, $prop_def->{css}, $value->[0]); |
| 185 |
if (length $s) { |
| 186 |
$r .= ' ' . $prop_def->{css} . ': ' . $s; |
| 187 |
$r .= ' ! ' . $value->[1] if length $value->[1]; |
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$r .= ";\n"; |
| 189 |
} |
| 190 |
} |
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} |
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return $r; |
| 193 |
} # css_text |
| 194 |
|
| 195 |
sub length ($) { |
| 196 |
require Whatpm::CSS::Parser; |
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return scalar @{[grep {$_} |
| 198 |
map { $Whatpm::CSS::Parser::Key->{$_} } |
| 199 |
keys %${$_[0]}]->[$_[1]]}; |
| 200 |
} # length |
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*FETCHSIZE = \&length; |
| 202 |
|
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## TODO: STORESIZE |
| 204 |
|
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sub parent_rule ($) { |
| 206 |
return ${$_[0]}->{parent_rule}; |
| 207 |
} # parent_rule |
| 208 |
|
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## |CSSStyleDeclaration| methods |
| 210 |
|
| 211 |
sub get_property_priority ($$) { |
| 212 |
my $prop_name = ''.$_[1]; |
| 213 |
|
| 214 |
require Whatpm::CSS::Parser; |
| 215 |
my $prop_def = $Whatpm::CSS::Parser::Prop->{$prop_name}; |
| 216 |
return '' unless defined $prop_def; |
| 217 |
|
| 218 |
if (defined $prop_def->{key}) { |
| 219 |
my $v = ${$_[0]}->{$prop_def->{key}}; |
| 220 |
return $v ? $v->[1] : ''; |
| 221 |
} elsif ($prop_def->{serialize_shorthand} or |
| 222 |
$prop_def->{serialize_multiple}) { |
| 223 |
my $v = ($prop_def->{serialize_shorthand} or |
| 224 |
$prop_def->{serialize_multiple})->($_[0]); |
| 225 |
if (defined $v->{$prop_def->{css}}) { |
| 226 |
return $v->{$prop_def->{css}}->[1]; |
| 227 |
} else { |
| 228 |
return ''; |
| 229 |
} |
| 230 |
} else { |
| 231 |
die "Implementation error: No serializer for property '$prop_name'"; |
| 232 |
} |
| 233 |
} # get_property_priority |
| 234 |
|
| 235 |
sub item ($$) { |
| 236 |
require Whatpm::CSS::Parser; |
| 237 |
return '' if $_[1] < 0; |
| 238 |
## TODO: ordering (should be same as that in |css_text|. |
| 239 |
my $v = [map {$_->{key}} |
| 240 |
grep {$_} |
| 241 |
map { $Whatpm::CSS::Parser::Key->{$_} } |
| 242 |
keys %${$_[0]}]->[$_[1]]; |
| 243 |
return defined $v ? $v : ''; |
| 244 |
} # item |
| 245 |
*FETCH = \&item; |
| 246 |
|
| 247 |
## TODO: STORE, DELETE |
| 248 |
|
| 249 |
sub EXISTS ($$) { |
| 250 |
return length $_[0]->item; |
| 251 |
} # EXISTS |
| 252 |
|
| 253 |
## TODO: Implement other methods and attributes |
| 254 |
|
| 255 |
package Message::DOM::CSSComputedStyleDeclaration; |
| 256 |
push our @ISA, 'Message::IF::CSSStyleDeclaration', |
| 257 |
'Message::IF::CSS2Properties'; |
| 258 |
|
| 259 |
sub ____new ($$$) { |
| 260 |
my $self = bless \{}, shift; |
| 261 |
$$self->{cascade} = shift; # Whatpm::CSS::Cascade object. |
| 262 |
$$self->{element} = shift; ## TODO: This link should be weaken? |
| 263 |
return $self; |
| 264 |
} # ____new |
| 265 |
|
| 266 |
sub AUTOLOAD { |
| 267 |
my $method_name = our $AUTOLOAD; |
| 268 |
$method_name =~ s/.*:://; |
| 269 |
return if $method_name eq 'DESTROY'; |
| 270 |
|
| 271 |
require Whatpm::CSS::Parser; |
| 272 |
my $prop_def = $Whatpm::CSS::Parser::Attr->{$method_name}; |
| 273 |
|
| 274 |
if ($prop_def) { |
| 275 |
no strict 'refs'; |
| 276 |
if ($prop_def->{compute} or $prop_def->{compute_multiple}) { |
| 277 |
*{ $method_name } = sub { |
| 278 |
## TODO: setter |
| 279 |
|
| 280 |
my $self = $_[0]; |
| 281 |
my $value = $$self->{cascade}->get_computed_value |
| 282 |
($$self->{element}, $prop_def->{css}); |
| 283 |
if ($value) { |
| 284 |
return $serialize_value->($self, $prop_def->{css}, $value); |
| 285 |
} else { |
| 286 |
return ''; |
| 287 |
} |
| 288 |
}; |
| 289 |
} elsif ($prop_def->{serialize_shorthand} or |
| 290 |
$prop_def->{serialize_multiple}) { |
| 291 |
*{ $method_name } = sub { |
| 292 |
## TODO: setter |
| 293 |
my $self = shift; |
| 294 |
|
| 295 |
my $v = ($prop_def->{serialize_shorthand} or |
| 296 |
$prop_def->{serialize_multiple})->($self); |
| 297 |
if (defined $v->{$prop_def->{css}}) { |
| 298 |
return $v->{$prop_def->{css}}->[0]; |
| 299 |
} else { |
| 300 |
return ''; |
| 301 |
} |
| 302 |
}; |
| 303 |
} else { |
| 304 |
## TODO: This should be an error of the implementation. |
| 305 |
## However, currently some shorthand properties does not have |
| 306 |
## serializer. |
| 307 |
## TODO: Remove {serialize} from shorthand properties, since |
| 308 |
## they have no effect. |
| 309 |
warn "$0: No computed value function for $method_name"; |
| 310 |
#die "$0: No computed value function for $method_name"; |
| 311 |
*{ $method_name } = sub { }; |
| 312 |
} |
| 313 |
goto &{ $AUTOLOAD }; |
| 314 |
} else { |
| 315 |
require Carp; |
| 316 |
Carp::croak (qq<Can't locate method "$AUTOLOAD">); |
| 317 |
} |
| 318 |
} # AUTOLOAD |
| 319 |
|
| 320 |
use overload |
| 321 |
'@{}' => sub { |
| 322 |
tie my @list, ref $_[0], $_[0]; |
| 323 |
return \@list; |
| 324 |
}, |
| 325 |
fallback => 1; |
| 326 |
|
| 327 |
sub TIEARRAY ($$) { $_[1] } |
| 328 |
|
| 329 |
## |CSSStyleDeclaration| attributes |
| 330 |
|
| 331 |
sub css_text ($;$) { |
| 332 |
## TODO: error if modified |
| 333 |
|
| 334 |
my $self = shift; |
| 335 |
require Whatpm::CSS::Parser; |
| 336 |
|
| 337 |
## NOTE: Where and how white space characters are inserted are |
| 338 |
## intentionally changed from those in browsers so that properties are |
| 339 |
## more prettily printed. |
| 340 |
## See <http://suika.fam.cx/gate/2005/sw/cssText> for what browsers do. |
| 341 |
## TODO: ordering |
| 342 |
## TODO: any spec? |
| 343 |
my $r = ''; |
| 344 |
my %serialized; |
| 345 |
for my $prop_def (sort {$a->{css} cmp $b->{css}} |
| 346 |
grep {$_->{compute} or |
| 347 |
$_->{compute_multiple} or |
| 348 |
$_->{serialize_multiple}} |
| 349 |
values %$Whatpm::CSS::Parser::Prop) { |
| 350 |
if ($prop_def->{serialize_multiple}) { |
| 351 |
unless ($serialized{$prop_def->{serialize_multiple}}) { |
| 352 |
$serialized{$prop_def->{serialize_multiple}} = 1; |
| 353 |
my $v = $prop_def->{serialize_multiple}->($self); |
| 354 |
for my $prop_name (sort {$a cmp $b} keys %$v) { |
| 355 |
$r .= ' ' . $prop_name . ': ' . $v->{$prop_name}->[0]; |
| 356 |
$r .= ' ! ' . $v->{$prop_name}->[1] if length $v->{$prop_name}->[1]; |
| 357 |
$r .= ";\n"; |
| 358 |
} |
| 359 |
} |
| 360 |
} else { |
| 361 |
my $prop_value = $$self->{cascade}->get_computed_value |
| 362 |
($$self->{element}, $prop_def->{css}); |
| 363 |
my $s = $serialize_value->($self, $prop_def->{css}, $prop_value); |
| 364 |
if (length $s) { |
| 365 |
$r .= ' ' . $prop_def->{css} . ': ' . $s; |
| 366 |
$r .= ";\n"; |
| 367 |
} else { |
| 368 |
## NOTE: This should be an error of the implementation. |
| 369 |
$r .= " /* $prop_def->{css}: ???; */\n"; |
| 370 |
} |
| 371 |
} |
| 372 |
} |
| 373 |
|
| 374 |
## ISSUE: Should we include CSS properties that are not supported? |
| 375 |
|
| 376 |
return $r; |
| 377 |
} # css_text |
| 378 |
|
| 379 |
## TODO: What should we enumerate is unclear. |
| 380 |
sub length ($) { |
| 381 |
require Whatpm::CSS::Parser; |
| 382 |
return scalar @{[grep {$_} |
| 383 |
values %$Whatpm::CSS::Parser::Key]}; |
| 384 |
} # length |
| 385 |
*FETCHSIZE = \&length; |
| 386 |
|
| 387 |
## TODO: STORESIZE |
| 388 |
|
| 389 |
## |CSSStyleDeclaration| methods |
| 390 |
|
| 391 |
sub get_property_priority ($$) { '' } |
| 392 |
|
| 393 |
sub item ($$) { |
| 394 |
require Whatpm::CSS::Parser; |
| 395 |
return '' if $_[1] < 0; |
| 396 |
## TODO: ordering (should be same as that in |css_text|. |
| 397 |
my $v = [sort {$a cmp $b} |
| 398 |
map {$_->{css}} |
| 399 |
grep {$_} |
| 400 |
values %$Whatpm::CSS::Parser::Key]->[$_[1]]; |
| 401 |
return defined $v ? $v : ''; |
| 402 |
} # item |
| 403 |
*FETCH = \&item; |
| 404 |
|
| 405 |
## TODO: STORE, DELETE |
| 406 |
|
| 407 |
sub EXISTS ($$) { |
| 408 |
return length $_[0]->item; |
| 409 |
} # EXISTS |
| 410 |
|
| 411 |
## TODO: members |
| 412 |
|
| 413 |
package Message::IF::CSSStyleDeclaration; |
| 414 |
package Message::IF::CSS2Properties; |
| 415 |
|
| 416 |
1; |
| 417 |
## $Date: 2008/01/26 05:12:05 $ |
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