Message/DOM/CSSStyleDeclaration.pm

package Message::DOM::CSSStyleDeclaration;
use strict;
our $VERSION=do{my @r=(q$Revision: 1.8 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
push our @ISA, 'Message::IF::CSSStyleDeclaration';

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

sub AUTOLOAD {
  my $method_name = our $AUTOLOAD;
  $method_name =~ s/.*:://;
  return if $method_name eq 'DESTROY';

  require Whatpm::CSS::Parser;
  my $prop_def = $Whatpm::CSS::Parser::Attr->{$method_name};

  if ($prop_def) {
    no strict 'refs';
    *{ $method_name } = sub {
      ## TODO: setter

      my $self = $_[0];
      my $value = $$self->{$prop_def->{key}};
      if ($value) {
        return $prop_def->{serialize}->($self, $prop_def->{css}, $value->[0]);
      } else {
        return undef;
      }
      ## TODO: null? ""? ... if not set?
      ## ISSUE: If one of shorthand component properties is !important?
    };
    goto &{ $AUTOLOAD };
  } else {
    require Carp;
    Carp::croak (qq<Can't locate method "$AUTOLOAD">);
  }
} # AUTOLOAD

## |CSSStyleDeclaration| attributes

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

  ## NOTE: Where and how white space characters are inserted are 
  ## intentionally changed from those in browsers so that properties are
  ## more prettily printed.
  ## See <http://suika.fam.cx/gate/2005/sw/cssText> for what browsers do.
  ## TODO: Ordering issue.
  require Whatpm::CSS::Parser;
  my $self = $_[0];
  my $r = '';
  my %serialized;
  for (grep {$$self->{$_}} keys %$$self) {
    my $prop_def = $Whatpm::CSS::Parser::Key->{$_};
    next unless $prop_def;

    if ($prop_def->{serialize_multiple}) {
      unless ($serialized{$prop_def->{serialize_multiple}}) {
        $serialized{$prop_def->{serialize_multiple}} = 1;
        my $v = $prop_def->{serialize_multiple}->($self);
        for my $prop_name (sort {$a cmp $b} keys %$v) {
          $r .= '  ' . $prop_name . ': ' . $v->{$prop_name} . ";\n"
        }
      }
    } else {
      my $value = $$self->{$_};
      my $s = $prop_def->{serialize}->($self, $prop_def->{css}, $value->[0]);
      if (defined $s) {
        $r .= '  ' . $prop_def->{css} . ': ' . $s;
        $r .= ' !' . $value->[1] if defined $value->[1];
        $r .= ";\n";
      }
    }
  }
  return $r;
} # css_text

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

## |CSSStyleDeclaration| methods

sub get_property_priority ($$) {
  my $prop_name = ''.$_[1];

  require Whatpm::CSS::Parser;
  my $prop_def = $Whatpm::CSS::Parser::Prop->{$prop_name};
  return '' unless defined $prop_def;

  my $v = ${$_[0]}->{$prop_def->{key}};

  return ((defined $v->[1] and $v->[1] eq 'important') ? 'important' : '');
} # get_property_priority

## TODO: Implement other methods and attributes

package Message::DOM::CSSComputedStyleDeclaration;
push our @ISA, 'Message::IF::CSSStyleDeclaration';

sub ____new ($$$) {
  my $self = bless \{}, shift;
  $$self->{cascade} = shift; # Whatpm::CSS::Cascade object.
  $$self->{element} = shift; ## TODO: This link should be weaken?
  return $self;
} # ____new

sub AUTOLOAD {
  my $method_name = our $AUTOLOAD;
  $method_name =~ s/.*:://;
  return if $method_name eq 'DESTROY';

  require Whatpm::CSS::Parser;
  my $prop_def = $Whatpm::CSS::Parser::Attr->{$method_name};

  if ($prop_def) {
    no strict 'refs';
    *{ $method_name } = sub {
      ## TODO: setter

      my $self = $_[0];
      my $value = $$self->{cascade}->get_computed_value
          ($$self->{element}, $prop_def->{css});
      if ($value) {
        return $prop_def->{serialize}->($self, $prop_def->{css}, $value);
      } else {
        return undef;
      }
      ## TODO: null? ""? ... if not set?
    };
    goto &{ $AUTOLOAD };
  } else {
    require Carp;
    Carp::croak (qq<Can't locate method "$AUTOLOAD">);
  }
} # AUTOLOAD

sub css_text ($;$) {
  ## TODO: error if modified

  my $self = shift;
  require Whatpm::CSS::Parser;

  ## NOTE: Where and how white space characters are inserted are 
  ## intentionally changed from those in browsers so that properties are
  ## more prettily printed.
  ## See <http://suika.fam.cx/gate/2005/sw/cssText> for what browsers do.
  ## TODO: ordering
  ## TODO: any spec?
  my $r = '';
  my %serialized;
  for my $prop_def (sort {$a->{css} cmp $b->{css}}
                    grep {$_->{compute} or
                          $_->{compute_multiple} or
                          $_->{serialize_multiple}}
                    values %$Whatpm::CSS::Parser::Prop) {
    if ($prop_def->{serialize_multiple}) {
      unless ($serialized{$prop_def->{serialize_multiple}}) {
        $serialized{$prop_def->{serialize_multiple}} = 1;
        my $v = $prop_def->{serialize_multiple}->($self);
        for my $prop_name (sort {$a cmp $b} keys %$v) {
          $r .= '  ' . $prop_name . ': ' . $v->{$prop_name} . ";\n"
        }
      }
    } else {
      my $prop_value = $$self->{cascade}->get_computed_value
          ($$self->{element}, $prop_def->{css});
      my $s = $prop_def->{serialize}->($self, $prop_def->{css}, $prop_value);
      if (defined $s) {
        $r .= '  ' . $prop_def->{css} . ': ' . $s;
        $r .= ";\n";
      } else {
        ## NOTE: This should be an error of the implementation.
        $r .= "  /* $prop_def->{css}: ???; */\n";
      }
    }
  }

  ## ISSUE: Should we include CSS properties that are not supported?

  return $r;
} # css_text

## |CSSStyleDeclaration| methods

sub get_property_priority ($$) {
  return '';
} # get_property_priority

## TODO: members

package Message::IF::CSSStyleDeclaration;

1;
## $Date: 2008/01/13 06:37:44 $
1	wakaba	1.1	package Message::DOM::CSSStyleDeclaration;
2			use strict;
3	wakaba	1.9	our $VERSION=do{my @r=(q$Revision: 1.8 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
4	wakaba	1.1	push our @ISA, 'Message::IF::CSSStyleDeclaration';
5
6			sub ____new ($) {
7			return bless \{}, $_[0];
8			} # ____new
9
10	wakaba	1.3	sub AUTOLOAD {
11			my $method_name = our $AUTOLOAD;
12			$method_name =~ s/.*:://;
13			return if $method_name eq 'DESTROY';
14
15			require Whatpm::CSS::Parser;
16			my $prop_def = $Whatpm::CSS::Parser::Attr->{$method_name};
17
18			if ($prop_def) {
19			no strict 'refs';
20			*{ $method_name } = sub {
21			## TODO: setter
22
23			my $self = $_[0];
24			my $value = $$self->{$prop_def->{key}};
25			if ($value) {
26			return $prop_def->{serialize}->($self, $prop_def->{css}, $value->[0]);
27			} else {
28			return undef;
29			}
30			## TODO: null? ""? ... if not set?
31	wakaba	1.8	## ISSUE: If one of shorthand component properties is !important?
32	wakaba	1.3	};
33			goto &{ $AUTOLOAD };
34			} else {
35			require Carp;
36			Carp::croak (qq<Can't locate method "$AUTOLOAD">);
37			}
38			} # AUTOLOAD
39
40	wakaba	1.1	## \|CSSStyleDeclaration\| attributes
41
42	wakaba	1.2	sub css_text ($;$) {
43	wakaba	1.3	## TODO: setter
44
45	wakaba	1.9	## NOTE: Where and how white space characters are inserted are
46			## intentionally changed from those in browsers so that properties are
47			## more prettily printed.
48			## See <http://suika.fam.cx/gate/2005/sw/cssText> for what browsers do.
49			## TODO: Ordering issue.
50	wakaba	1.3	require Whatpm::CSS::Parser;
51			my $self = $_[0];
52			my $r = '';
53	wakaba	1.7	my %serialized;
54	wakaba	1.3	for (grep {$$self->{$_}} keys %$$self) {
55			my $prop_def = $Whatpm::CSS::Parser::Key->{$_};
56			next unless $prop_def;
57	wakaba	1.7
58			if ($prop_def->{serialize_multiple}) {
59			unless ($serialized{$prop_def->{serialize_multiple}}) {
60			$serialized{$prop_def->{serialize_multiple}} = 1;
61			my $v = $prop_def->{serialize_multiple}->($self);
62			for my $prop_name (sort {$a cmp $b} keys %$v) {
63			$r .= ' ' . $prop_name . ': ' . $v->{$prop_name} . ";\n"
64			}
65			}
66			} else {
67			my $value = $$self->{$_};
68			my $s = $prop_def->{serialize}->($self, $prop_def->{css}, $value->[0]);
69			if (defined $s) {
70			$r .= ' ' . $prop_def->{css} . ': ' . $s;
71			$r .= ' !' . $value->[1] if defined $value->[1];
72			$r .= ";\n";
73			}
74	wakaba	1.3	}
75			}
76			return $r;
77	wakaba	1.2	} # css_text
78
79	wakaba	1.1	sub parent_rule ($) {
80			return ${$_[0]}->{parent_rule};
81			} # parent_rule
82
83	wakaba	1.7	## \|CSSStyleDeclaration\| methods
84
85			sub get_property_priority ($$) {
86			my $prop_name = ''.$_[1];
87
88			require Whatpm::CSS::Parser;
89			my $prop_def = $Whatpm::CSS::Parser::Prop->{$prop_name};
90			return '' unless defined $prop_def;
91
92			my $v = ${$_[0]}->{$prop_def->{key}};
93
94			return ((defined $v->[1] and $v->[1] eq 'important') ? 'important' : '');
95			} # get_property_priority
96
97	wakaba	1.1	## TODO: Implement other methods and attributes
98
99	wakaba	1.4	package Message::DOM::CSSComputedStyleDeclaration;
100			push our @ISA, 'Message::IF::CSSStyleDeclaration';
101
102			sub ____new ($$$) {
103			my $self = bless \{}, shift;
104			$$self->{cascade} = shift; # Whatpm::CSS::Cascade object.
105			$$self->{element} = shift; ## TODO: This link should be weaken?
106			return $self;
107			} # ____new
108
109	wakaba	1.7	sub AUTOLOAD {
110			my $method_name = our $AUTOLOAD;
111			$method_name =~ s/.*:://;
112			return if $method_name eq 'DESTROY';
113
114			require Whatpm::CSS::Parser;
115			my $prop_def = $Whatpm::CSS::Parser::Attr->{$method_name};
116
117			if ($prop_def) {
118			no strict 'refs';
119			*{ $method_name } = sub {
120			## TODO: setter
121
122			my $self = $_[0];
123			my $value = $$self->{cascade}->get_computed_value
124			($$self->{element}, $prop_def->{css});
125			if ($value) {
126			return $prop_def->{serialize}->($self, $prop_def->{css}, $value);
127			} else {
128			return undef;
129			}
130			## TODO: null? ""? ... if not set?
131			};
132			goto &{ $AUTOLOAD };
133			} else {
134			require Carp;
135			Carp::croak (qq<Can't locate method "$AUTOLOAD">);
136			}
137			} # AUTOLOAD
138
139	wakaba	1.4	sub css_text ($;$) {
140			## TODO: error if modified
141
142			my $self = shift;
143			require Whatpm::CSS::Parser;
144
145	wakaba	1.9	## NOTE: Where and how white space characters are inserted are
146			## intentionally changed from those in browsers so that properties are
147			## more prettily printed.
148			## See <http://suika.fam.cx/gate/2005/sw/cssText> for what browsers do.
149	wakaba	1.4	## TODO: ordering
150			## TODO: any spec?
151			my $r = '';
152	wakaba	1.7	my %serialized;
153	wakaba	1.6	for my $prop_def (sort {$a->{css} cmp $b->{css}}
154	wakaba	1.7	grep {$_->{compute} or
155			$_->{compute_multiple} or
156			$_->{serialize_multiple}}
157	wakaba	1.6	values %$Whatpm::CSS::Parser::Prop) {
158	wakaba	1.7	if ($prop_def->{serialize_multiple}) {
159			unless ($serialized{$prop_def->{serialize_multiple}}) {
160			$serialized{$prop_def->{serialize_multiple}} = 1;
161			my $v = $prop_def->{serialize_multiple}->($self);
162			for my $prop_name (sort {$a cmp $b} keys %$v) {
163			$r .= ' ' . $prop_name . ': ' . $v->{$prop_name} . ";\n"
164			}
165			}
166	wakaba	1.5	} else {
167	wakaba	1.7	my $prop_value = $$self->{cascade}->get_computed_value
168			($$self->{element}, $prop_def->{css});
169			my $s = $prop_def->{serialize}->($self, $prop_def->{css}, $prop_value);
170			if (defined $s) {
171			$r .= ' ' . $prop_def->{css} . ': ' . $s;
172			$r .= ";\n";
173			} else {
174			## NOTE: This should be an error of the implementation.
175			$r .= " /* $prop_def->{css}: ???; */\n";
176			}
177	wakaba	1.4	}
178			}
179	wakaba	1.6
180			## ISSUE: Should we include CSS properties that are not supported?
181
182	wakaba	1.4	return $r;
183			} # css_text
184
185	wakaba	1.7	## \|CSSStyleDeclaration\| methods
186
187			sub get_property_priority ($$) {
188			return '';
189			} # get_property_priority
190
191	wakaba	1.4	## TODO: members
192
193	wakaba	1.1	package Message::IF::CSSStyleDeclaration;
194
195			1;
196	wakaba	1.9	## $Date: 2008/01/13 06:37:44 $