/[suikacvs]/markup/html/whatpm/Whatpm/CSS/Cascade.pm
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revision 1.5 by wakaba, Tue Jan 1 15:43:47 2008 UTC revision 1.6 by wakaba, Tue Jan 1 15:56:24 2008 UTC
# Line 154  sub get_computed_value ($$$) { Line 154  sub get_computed_value ($$$) {
154      if (defined $prop_def) {      if (defined $prop_def) {
155        my $specified = $self->get_specified_value ($element, $prop_name);        my $specified = $self->get_specified_value ($element, $prop_name);
156        if (defined $specified and $specified->[0] eq 'INHERIT') {        if (defined $specified and $specified->[0] eq 'INHERIT') {
157            ## ISSUE: CSS 2.1 does not say to resolve computed value of the parent.
158            ## However, it is necessary for some cases (see
159            ## <http://suika.fam.cx/gate/2005/sw/inherit>).  In addition,
160            ## the initial value is not a computed value for some properties.
161          my $parent_element = $element->manakai_parent_element;          my $parent_element = $element->manakai_parent_element;
162          if (defined $parent_element) {          if (defined $parent_element) {
163            $self->{computed_value}->{$eid}->{$prop_name}            $specified = $self->get_computed_value ($parent_element, $prop_name);
               = $self->get_computed_value ($parent_element, $prop_name);  
164          } else {          } else {
165            ## ISSUE: CSS 2.1 says that the computed value is the initial            $specified = $prop_def->{compute}->($self, $element, $prop_name,
166            ## value in this case.  However, the initial value is not                                                $prop_def->{initial});
           ## necessariliy a computed value.  
           $self->{computed_value}->{$eid}->{$prop_name}  
               = $prop_def->{compute}->($self, $element, $prop_name,  
                                        $prop_def->{initial});  
167          }          }
168        } else {          ## NOTE: Because of this handling, {compute} codes must be
169          $self->{computed_value}->{$eid}->{$prop_name}          ## idempotent.
             = $prop_def->{compute}->($self, $element, $prop_name, $specified);  
170        }        }
171          
172          $self->{computed_value}->{$eid}->{$prop_name}
173              = $prop_def->{compute}->($self, $element, $prop_name, $specified);
174      } else {      } else {
175        $self->{computed_value}->{$eid}->{$prop_name} = undef;        $self->{computed_value}->{$eid}->{$prop_name} = undef;
176      }      }
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