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	package Message::DOM::CSSRule;
2	use strict;
3	our $VERSION=do{my @r=(q$Revision: 1.5 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
4	push our @ISA, 'Message::IF::CSSRule';
5	require Scalar::Util;
6
7	## \|CSSRule\| constants
8
9	sub STYLE_RULE () { 1 }
10	sub CHARSET_RULE () { 2 }
11	sub IMPORT_RULE () { 3 }
12	sub MEDIA_RULE () { 4 }
13	sub FONT_FACE_RULE () { 5 }
14	sub PAGE_RULE () { 6 }
15	sub NAMESPACE_RULE () { 7 }
16
17	## \|CSSRule\| attributes
18
19	sub css_text ($) {
20	die "$0: ".(ref $_[0])."->css_text: Not implemented";
21	} # css_text
22
23	sub parent_rule ($) {
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
44	sub type ($) {
45	die "$0: ".(ref $_[0])."->type: Not implemented";
46	} # type
47
48	package Message::DOM::CSSStyleRule;
49	push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSStyleRule';
50
51	sub ____new ($$$) {
52	my $self = bless \{_selectors => $_[1], style => $_[2]}, $_[0];
53	${$_[2]}->{parent_rule} = $self;
54	Scalar::Util::weaken (${$_[2]}->{parent_rule});
55	return $self;
56	} # ____new
57
58	## \|CSSRule\| attributes
59
60	sub css_text ($;$) {
61	## TODO: setter
62
63	## TODO: Browser compatibility
64	local $Error::Depth = $Error::Depth + 1;
65	return $_[0]->selector_text . " {\n" . $_[0]->style->css_text . "}\n";
66	} # css_text
67
68	sub type ($) { Message::DOM::CSSRule::STYLE_RULE }
69
70	## \|CSSStyleRule\| attributes
71
72	sub selector_text ($;$) {
73	## TODO: setter
74
75	## TODO: Browser-compatible serializer
76	## TODO: This code does not work for cases where default namespace
77	## has no namespace prefix declared.
78	my $self = $_[0];
79	require Whatpm::CSS::SelectorsSerializer;
80	return Whatpm::CSS::SelectorsSerializer->serialize_selector_text
81	($$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	} # selector_text
88
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 ($$) {
97	return bless \{encoding => $_[1]}, $_[0];
98	} # ____new
99
100	## \|CSSRule\| attributes
101
102	sub css_text ($;$) {
103	## TODO: setter
104
105	## NOTE: It will be broken if \|encoding\| contains \|"\| or \|\\|, but this
106	## is what browsers do.
107	return '@charset "'.${$_[0]}->{encoding}.'";';
108	} # css_text
109
110	sub type ($) { Message::DOM::CSSRule::CHARSET_RULE }
111
112	## \|CSSCharsetRule\| attribute
113
114	sub encoding ($) {
115	return ${$_[0]}->{encoding};
116	} # encoding
117
118	package Message::DOM::CSSImportRule;
119	push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSImportRule';
120
121	sub ____new ($$$$) {
122	my $self = bless \{href => $_[1], media => $_[2], style_sheet => $_[3]}, $_[0];
123	${$_[3]}->{owner_rule} = $self;
124	Scalar::Util::weaken (${$_[3]}->{owner_rule});
125	return $self;
126	} # ____new
127
128	## \|CSSRule\| attributes
129
130	## TODO: \|css_text\|
131
132	sub type ($) { Message::DOM::CSSRule::IMPORT_RULE }
133
134	## \|CSSImportRule\| attributes
135
136	sub href ($) {
137	return ${$_[0]}->{href};
138	} # href
139
140	sub media ($) {
141	return ${$_[0]}->{media};
142	} # media
143
144	sub style_sheet ($) {
145	return ${$_[0]}->{style_sheet};
146	} # style_sheet
147
148	package Message::DOM::CSSMediaRule;
149	push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSMediaRule';
150
151	sub ____new ($$$) {
152	my $self = bless \{media => $_[1], css_rules => $_[2]}, $_[0];
153	for (@{$_[2]}) {
154	${$_}->{parent_rule} = $self;
155	Scalar::Util::weaken (${$_}->{parent_rule});
156	}
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 ($$) {
181	my $self = bless \{style => $_[1]}, $_[0];
182	${$_[2]}->{parent_rule} = $self;
183	Scalar::Util::weaken (${$_[2]}->{parent_rule});
184	return $self;
185	} # ____new
186
187	## \|CSSRule\| attributes
188
189	## TODO: \|css_text\|
190
191	sub type ($) { Message::DOM::CSSRule::FONT_FACE_RULE }
192
193	## \|CSSFontFaceRule\| attribute
194
195	sub style ($) {
196	return ${$_[0]}->{style};
197	} # style
198
199	package Message::DOM::CSSPageRule;
200	push our @ISA, 'Message::DOM::CSSRule', 'Message::IF::CSSPageRule';
201
202	sub ____new ($$$) {
203	my $self = bless \{_selectors => $_[1], style => $_[2]}, $_[0];
204	${$_[2]}->{parent_rule} = $self;
205	Scalar::Util::weaken (${$_[2]}->{parent_rule});
206	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	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
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]}, $_[0];
234	} # ___new
235
236	## \|CSSRule\| attributes
237
238	sub css_text ($;$) {
239	## TODO: Setter
240
241	## NOTE: Sometimes ugly, but this is what Firefox does.
242	my $prefix = ${$_[0]}->{prefix};
243	return '@namespace '.($prefix ne '' ? $prefix.' ' : '').
244	'url('.${$_[0]}->{namespace_uri}.');';
245	} # css_text
246
247	sub type ($) { 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	## $Date: 2007/12/23 15:45:49 $