Message/DOM/CSSRule.pm

package Message::DOM::CSSRule;
use strict;
our $VERSION=do{my @r=(q$Revision: 1.5 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
push our @ISA, 'Message::IF::CSSRule';
require Scalar::Util;

## |CSSRule| constants

sub STYLE_RULE () { 1 }
sub CHARSET_RULE () { 2 }
sub IMPORT_RULE () { 3 }
sub MEDIA_RULE () { 4 }
sub FONT_FACE_RULE () { 5 }
sub PAGE_RULE () { 6 }
sub NAMESPACE_RULE () { 7 }

## |CSSRule| attributes

sub css_text ($) {
  die "$0: ".(ref $_[0])."->css_text: Not implemented";
} # css_text

sub parent_rule ($) {
  return ${$_[0]}->{parent_rule};
} # parent_rule

sub parent_style_sheet ($) {
  if (${$_[0]}->{parent_style_sheet}) {
    return ${$_[0]}->{parent_style_sheet};
  } elsif (${$_[0]}->{parent_rule}) {
    local $Error::Depth = $Error::Depth + 1;
    return ${$_[0]}->{parent_rule}->parent_style_sheet;
  } else {
    ## NOTE: Not in the CSSOM ED: If the |CSSRule| object is not 
    ## yet associated to any CSS style sheet.  Such object should not be
    ## returned to applications - that is, the intention is that only
    ## modules belonging to manakai may get |undef| from the
    ## |parent_style_sheet| attribute during the construction of CSSOM.
    ## Therefore, this is not counted as a manakai extension to CSSOM spec.
    return undef;
  }
} # parent_style_sheet

sub type ($) {
  die "$0: ".(ref $_[0])."->type: Not implemented";
} # type

package Message::DOM::CSSStyleRule;
push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSStyleRule';

sub ____new ($$$) {
  my $self = bless \{_selectors => $_[1], style => $_[2]}, $_[0];
  ${$_[2]}->{parent_rule} = $self;
  Scalar::Util::weaken (${$_[2]}->{parent_rule});
  return $self;
} # ____new

## |CSSRule| attributes

sub css_text ($;$) {
  ## TODO: setter

  ## TODO: Browser compatibility
  local $Error::Depth = $Error::Depth + 1;
  return $_[0]->selector_text . " {\n" . $_[0]->style->css_text . "}\n";
} # css_text

sub type ($) { Message::DOM::CSSRule::STYLE_RULE }

## |CSSStyleRule| attributes

sub selector_text ($;$) {
  ## TODO: setter

  ## TODO: Browser-compatible serializer
  ## TODO: This code does not work for cases where default namespace
  ## has no namespace prefix declared.
  my $self = $_[0];
  require Whatpm::CSS::SelectorsSerializer;
  return Whatpm::CSS::SelectorsSerializer->serialize_selector_text
      ($$self->{_selectors}, sub {
        ## TODO: We should have some caching mechanism, otherwise
        ## too many computation for complex selectors in long style sheet.
        return $self->parent_style_sheet->manakai_lookup_namespace_prefix
            ($_[0]);
      });
} # selector_text

sub style ($) {
  return ${$_[0]}->{style};
} # style

package Message::DOM::CSSCharsetRule;
push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSCharsetRule';

sub ____new ($$) {
  return bless \{encoding => $_[1]}, $_[0];
} # ____new

## |CSSRule| attributes

sub css_text ($;$) {
  ## TODO: setter

  ## NOTE: It will be broken if |encoding| contains |"| or |\|, but this
  ## is what browsers do.
  return '@charset "'.${$_[0]}->{encoding}.'";';
} # css_text

sub type ($) { Message::DOM::CSSRule::CHARSET_RULE }

## |CSSCharsetRule| attribute

sub encoding ($) {
  return ${$_[0]}->{encoding};
} # encoding

package Message::DOM::CSSImportRule;
push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSImportRule';

sub ____new ($$$$) {
  my $self = bless \{href => $_[1], media => $_[2], style_sheet => $_[3]}, $_[0];
  ${$_[3]}->{owner_rule} = $self;
  Scalar::Util::weaken (${$_[3]}->{owner_rule});
  return $self;
} # ____new

## |CSSRule| attributes

## TODO: |css_text|

sub type ($) { Message::DOM::CSSRule::IMPORT_RULE }

## |CSSImportRule| attributes

sub href ($) {
  return ${$_[0]}->{href};
} # href

sub media ($) {
  return ${$_[0]}->{media};
} # media

sub style_sheet ($) {
  return ${$_[0]}->{style_sheet};
} # style_sheet

package Message::DOM::CSSMediaRule;
push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSMediaRule';

sub ____new ($$$) {
  my $self = bless \{media => $_[1], css_rules => $_[2]}, $_[0];
  for (@{$_[2]}) {
    ${$_}->{parent_rule} = $self;
    Scalar::Util::weaken (${$_}->{parent_rule});
  }
  return $self;
} # ____new

## |CSSRule| attributes

## TODO: |css_text|

sub type ($) { Message::DOM::CSSRule::MEDIA_RULE }

## |CSSMediaRule| attributes

sub css_rules ($) {
  require Message::DOM::CSSRuleList;
  return bless \\($_[0]), 'Message::DOM::CSSRuleList';
} # css_rules

sub media ($) {
  return ${$_[0]}->{media};
} # media

package Message::DOM::CSSFontFaceRule;
push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSFontFaceRule';

sub ____new ($$) {
  my $self = bless \{style => $_[1]}, $_[0];
  ${$_[2]}->{parent_rule} = $self;
  Scalar::Util::weaken (${$_[2]}->{parent_rule});
  return $self;
} # ____new

## |CSSRule| attributes

## TODO: |css_text|

sub type ($) { Message::DOM::CSSRule::FONT_FACE_RULE }

## |CSSFontFaceRule| attribute

sub style ($) {
  return ${$_[0]}->{style};
} # style

package Message::DOM::CSSPageRule;
push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSPageRule';

sub ____new ($$$) {
  my $self = bless \{_selectors => $_[1], style => $_[2]}, $_[0];
  ${$_[2]}->{parent_rule} = $self;
  Scalar::Util::weaken (${$_[2]}->{parent_rule});
  return $self;
} # ____new

## |CSSRule| attributes

## TODO: |css_text|

sub type ($) { Message::DOM::CSSRule::PAGE_RULE }

## |CSSPageRule| attributes

sub selector_text ($;$) {
  ## TODO: setter

  ## TODO: Browser-compatible serializer
  require Whatpm::CSS::SelectorsSerializer;
  return Whatpm::CSS::SelectorsSerializer->serialize_test (${$_[0]}->{_selectors});
} # selector_text

sub style ($) {
  return ${$_[0]}->{style};
} # style

package Message::DOM::CSSNamespaceRule;
push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSNamespaceRule';

sub ____new ($$$) {
  return bless \{namespace_uri => $_[2], prefix => $_[1]}, $_[0];
} # ___new

## |CSSRule| attributes

sub css_text ($;$) {
  ## TODO: Setter

  ## NOTE: Sometimes ugly, but this is what Firefox does.
  my $prefix = ${$_[0]}->{prefix};
  return '@namespace '.($prefix ne '' ? $prefix.' ' : '').
      'url('.${$_[0]}->{namespace_uri}.');';
} # css_text

sub type ($) { Message::DOM::CSSRule::NAMESPACE_RULE }

## |CSSNamespaceRule| attributes

sub namespace_uri ($) {
  return ${$_[0]}->{namespace_uri};
} # namespace_uri

sub prefix ($) {
  return ${$_[0]}->{prefix};
} # prefix

package Message::IF::CSSRule;
package Message::IF::CSSStyleRule;
package Message::IF::CSSCharsetRule;
package Message::IF::CSSImportRule;
package Message::IF::CSSMediaRule;
package Message::IF::CSSFontFaceRule;
package Message::IF::CSSPageRule;

1;
## $Date: 2007/12/23 15:45:49 $
1	wakaba	1.1	package Message::DOM::CSSRule;
2			use strict;
3	wakaba	1.6	our $VERSION=do{my @r=(q$Revision: 1.5 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
4	wakaba	1.1	push our @ISA, 'Message::IF::CSSRule';
5	wakaba	1.2	require Scalar::Util;
6	wakaba	1.1
7			## \|CSSRule\| constants
8
9			sub STYLE_RULE () { 1 }
10			sub CHARSET_RULE () { 2 }
11			sub IMPORT_RULE () { 3 }
12			sub MEDIA_RULE () { 4 }
13			sub FONT_FACE_RULE () { 5 }
14			sub PAGE_RULE () { 6 }
15			sub NAMESPACE_RULE () { 7 }
16
17			## \|CSSRule\| attributes
18
19			sub css_text ($) {
20	wakaba	1.3	die "$0: ".(ref $_[0])."->css_text: Not implemented";
21	wakaba	1.1	} # css_text
22
23	wakaba	1.2	sub parent_rule ($) {
24			return ${$_[0]}->{parent_rule};
25			} # parent_rule
26
27			sub parent_style_sheet ($) {
28			if (${$_[0]}->{parent_style_sheet}) {
29			return ${$_[0]}->{parent_style_sheet};
30			} elsif (${$_[0]}->{parent_rule}) {
31			local $Error::Depth = $Error::Depth + 1;
32			return ${$_[0]}->{parent_rule}->parent_style_sheet;
33			} else {
34			## NOTE: Not in the CSSOM ED: If the \|CSSRule\| object is not
35			## yet associated to any CSS style sheet. Such object should not be
36			## returned to applications - that is, the intention is that only
37			## modules belonging to manakai may get \|undef\| from the
38			## \|parent_style_sheet\| attribute during the construction of CSSOM.
39			## Therefore, this is not counted as a manakai extension to CSSOM spec.
40			return undef;
41			}
42			} # parent_style_sheet
43	wakaba	1.1
44			sub type ($) {
45	wakaba	1.3	die "$0: ".(ref $_[0])."->type: Not implemented";
46	wakaba	1.1	} # type
47
48			package Message::DOM::CSSStyleRule;
49			push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSStyleRule';
50
51			sub ____new ($$$) {
52	wakaba	1.3	my $self = bless \{_selectors => $_[1], style => $_[2]}, $_[0];
53	wakaba	1.2	${$_[2]}->{parent_rule} = $self;
54			Scalar::Util::weaken (${$_[2]}->{parent_rule});
55	wakaba	1.1	return $self;
56			} # ____new
57
58			## \|CSSRule\| attributes
59
60	wakaba	1.3	sub css_text ($;$) {
61			## TODO: setter
62
63			## TODO: Browser compatibility
64			local $Error::Depth = $Error::Depth + 1;
65			return $_[0]->selector_text . " {\n" . $_[0]->style->css_text . "}\n";
66			} # css_text
67	wakaba	1.1
68			sub type ($) { Message::DOM::CSSRule::STYLE_RULE }
69
70			## \|CSSStyleRule\| attributes
71
72	wakaba	1.3	sub selector_text ($;$) {
73			## TODO: setter
74
75			## TODO: Browser-compatible serializer
76	wakaba	1.5	## TODO: This code does not work for cases where default namespace
77			## has no namespace prefix declared.
78			my $self = $_[0];
79	wakaba	1.3	require Whatpm::CSS::SelectorsSerializer;
80	wakaba	1.6	return Whatpm::CSS::SelectorsSerializer->serialize_selector_text
81	wakaba	1.5	($$self->{_selectors}, sub {
82			## TODO: We should have some caching mechanism, otherwise
83			## too many computation for complex selectors in long style sheet.
84			return $self->parent_style_sheet->manakai_lookup_namespace_prefix
85			($_[0]);
86			});
87	wakaba	1.3	} # selector_text
88	wakaba	1.1
89			sub style ($) {
90			return ${$_[0]}->{style};
91			} # style
92
93			package Message::DOM::CSSCharsetRule;
94			push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSCharsetRule';
95
96			sub ____new ($$) {
97			return bless \{encoding => $_[1]}, $_[0];
98			} # ____new
99
100			## \|CSSRule\| attributes
101
102	wakaba	1.4	sub css_text ($;$) {
103			## TODO: setter
104
105			## NOTE: It will be broken if \|encoding\| contains \|"\| or \|\\|, but this
106			## is what browsers do.
107			return '@charset "'.${$_[0]}->{encoding}.'";';
108			} # css_text
109	wakaba	1.1
110			sub type ($) { Message::DOM::CSSRule::CHARSET_RULE }
111
112			## \|CSSCharsetRule\| attribute
113
114			sub encoding ($) {
115			return ${$_[0]}->{encoding};
116			} # encoding
117
118			package Message::DOM::CSSImportRule;
119			push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSImportRule';
120
121			sub ____new ($$$$) {
122			my $self = bless \{href => $_[1], media => $_[2], style_sheet => $_[3]}, $_[0];
123	wakaba	1.2	${$_[3]}->{owner_rule} = $self;
124			Scalar::Util::weaken (${$_[3]}->{owner_rule});
125	wakaba	1.1	return $self;
126			} # ____new
127
128			## \|CSSRule\| attributes
129
130			## TODO: \|css_text\|
131
132			sub type ($) { Message::DOM::CSSRule::IMPORT_RULE }
133
134			## \|CSSImportRule\| attributes
135
136			sub href ($) {
137			return ${$_[0]}->{href};
138			} # href
139
140			sub media ($) {
141			return ${$_[0]}->{media};
142			} # media
143
144			sub style_sheet ($) {
145			return ${$_[0]}->{style_sheet};
146			} # style_sheet
147
148			package Message::DOM::CSSMediaRule;
149			push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSMediaRule';
150
151			sub ____new ($$$) {
152			my $self = bless \{media => $_[1], css_rules => $_[2]}, $_[0];
153			for (@{$_[2]}) {
154	wakaba	1.2	${$_}->{parent_rule} = $self;
155			Scalar::Util::weaken (${$_}->{parent_rule});
156	wakaba	1.1	}
157			return $self;
158			} # ____new
159
160			## \|CSSRule\| attributes
161
162			## TODO: \|css_text\|
163
164			sub type ($) { Message::DOM::CSSRule::MEDIA_RULE }
165
166			## \|CSSMediaRule\| attributes
167
168			sub css_rules ($) {
169			require Message::DOM::CSSRuleList;
170			return bless \\($_[0]), 'Message::DOM::CSSRuleList';
171			} # css_rules
172
173			sub media ($) {
174			return ${$_[0]}->{media};
175			} # media
176
177			package Message::DOM::CSSFontFaceRule;
178			push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSFontFaceRule';
179
180			sub ____new ($$) {
181			my $self = bless \{style => $_[1]}, $_[0];
182	wakaba	1.2	${$_[2]}->{parent_rule} = $self;
183			Scalar::Util::weaken (${$_[2]}->{parent_rule});
184			return $self;
185	wakaba	1.1	} # ____new
186
187			## \|CSSRule\| attributes
188
189			## TODO: \|css_text\|
190
191			sub type ($) { Message::DOM::CSSRule::FONT_FACE_RULE }
192
193			## \|CSSFontFaceRule\| attribute
194
195			sub style ($) {
196			return ${$_[0]}->{style};
197			} # style
198
199			package Message::DOM::CSSPageRule;
200			push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSPageRule';
201
202			sub ____new ($$$) {
203	wakaba	1.3	my $self = bless \{_selectors => $_[1], style => $_[2]}, $_[0];
204	wakaba	1.2	${$_[2]}->{parent_rule} = $self;
205			Scalar::Util::weaken (${$_[2]}->{parent_rule});
206	wakaba	1.1	return $self;
207			} # ____new
208
209			## \|CSSRule\| attributes
210
211			## TODO: \|css_text\|
212
213			sub type ($) { Message::DOM::CSSRule::PAGE_RULE }
214
215			## \|CSSPageRule\| attributes
216
217	wakaba	1.3	sub selector_text ($;$) {
218			## TODO: setter
219
220			## TODO: Browser-compatible serializer
221			require Whatpm::CSS::SelectorsSerializer;
222			return Whatpm::CSS::SelectorsSerializer->serialize_test (${$_[0]}->{_selectors});
223			} # selector_text
224	wakaba	1.1
225			sub style ($) {
226			return ${$_[0]}->{style};
227			} # style
228
229			package Message::DOM::CSSNamespaceRule;
230			push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSNamespaceRule';
231
232			sub ____new ($$$) {
233			return bless \{namespace_uri => $_[2], prefix => $_[1]}, $_[0];
234			} # ___new
235
236			## \|CSSRule\| attributes
237
238	wakaba	1.5	sub css_text ($;$) {
239			## TODO: Setter
240
241			## NOTE: Sometimes ugly, but this is what Firefox does.
242			my $prefix = ${$_[0]}->{prefix};
243			return '@namespace '.($prefix ne '' ? $prefix.' ' : '').
244			'url('.${$_[0]}->{namespace_uri}.');';
245			} # css_text
246	wakaba	1.1
247			sub type ($) { Message::DOM::CSSRule::NAMESPACE_RULE }
248
249			## \|CSSNamespaceRule\| attributes
250
251			sub namespace_uri ($) {
252			return ${$_[0]}->{namespace_uri};
253			} # namespace_uri
254
255			sub prefix ($) {
256			return ${$_[0]}->{prefix};
257			} # prefix
258
259			package Message::IF::CSSRule;
260			package Message::IF::CSSStyleRule;
261			package Message::IF::CSSCharsetRule;
262			package Message::IF::CSSImportRule;
263			package Message::IF::CSSMediaRule;
264			package Message::IF::CSSFontFaceRule;
265			package Message::IF::CSSPageRule;
266
267			1;
268	wakaba	1.6	## $Date: 2007/12/23 15:45:49 $