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################################################################################################### |
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# Copyright 2013/2014 by Marcel Greter |
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# This file is part of OCBNET-CSS3 (GPL3) |
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#################################################################################################### |
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# a css3 object with styles and options |
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#################################################################################################### |
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package OCBNET::CSS3::DOM::Block; |
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#################################################################################################### |
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our $VERSION = '0.2.5'; |
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#################################################################################################### |
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use strict; |
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use warnings; |
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#################################################################################################### |
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use base 'OCBNET::CSS3'; |
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use OCBNET::CSS3::Styles; |
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#################################################################################################### |
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# create a new object |
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# *************************************************************************************** |
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sub new |
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{ |
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# package name |
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my ($pckg) = shift; |
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# create a new instance |
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my $self = $pckg->SUPER::new; |
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# store only longhands |
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$self->{'style'} = OCBNET::CSS3::Styles->new($self); |
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$self->{'option'} = OCBNET::CSS3::Styles->new($self); |
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# instance |
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return $self; |
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} |
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# EO constructor |
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#################################################################################################### |
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# static getter |
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# always overwrite this |
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#************************************************************************************************** |
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sub type { die 'not implemented' } |
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# static getters |
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#************************************************************************************************** |
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sub styles { $_[0]->{'style'} } |
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sub options { $_[0]->{'option'} } |
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#################################################################################################### |
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# getter with recursive logic |
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# can reference ids in options |
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# try to load styles from there |
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#************************************************************************************************** |
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sub get |
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{ |
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# get input arguments |
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my ($self, $type, $key, $idx) = @_; |
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# try to get/call registered getter function for key |
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my $getter = $OCBNET::CSS3::Styles::getter{$key}; |
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return $getter->($self, $type, $key, $idx) if defined $getter; |
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# check if found in current styles |
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if (exists $self->{$type}->{$key}->[$idx || 0]) |
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{ return $self->{$type}->{$key}->[$idx || 0]; } |
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# do not go recursive on certain keys |
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return undef if $key eq 'css-ref'; |
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return undef if $key eq 'css-id'; |
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# find the node that has the key |
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my $node = $self->find($type, $key); |
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# return if nothing found |
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return undef unless $node; |
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# return results from getter |
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$node->get($type, $key, $idx); |
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} |
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# EO sub get |
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#################################################################################################### |
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# getters for styles and options |
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#************************************************************************************************** |
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sub style { get(shift, 'style', @_) } |
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sub option { get(shift, 'option', @_) } |
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#################################################################################################### |
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# getter with recursive logic |
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# can reference ids in options |
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# try to load options from there |
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#************************************************************************************************** |
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sub find |
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{ |
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# get input arguments |
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my ($self, $type, $key) = @_; |
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# check if found in current styles |
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if (exists $self->{$type}->{$key}) |
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{ return $self if scalar(@{$self->{$type}->{$key}}) } |
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# do not go recursive on certain keys |
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# return undef if $key eq 'css-ref'; |
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# return undef if $key eq 'css-id'; |
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# check each css references for given key |
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foreach my $id ($self->options->list('css-ref')) |
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{ |
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# get the actual referenced dom node |
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my $ref = $self->root->{'ids'}->{$id}; |
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# give error message if reference was not found |
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die "referenced id <$id> not found" unless $ref; |
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# resolve value on referenced block |
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# will itself try to resolve further |
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my $result = $ref->find($type, $key); |
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# only return if result is defined |
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return $result if defined $result; |
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} |
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# nothing found |
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return undef; |
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} |
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# EO sub option |
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#################################################################################################### |
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# helper to check if we implement a certain class |
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#************************************************************************************************** |
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sub isa { shift->SUPER::isa(map { 'OCBNET::CSS3::' . $_ } @_) } |
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#################################################################################################### |
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# remove certain styles |
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#************************************************************************************************** |
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sub clean |
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{ |
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# get selector and regex |
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# remove styles found by regex |
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my ($selector, $regexp) = @_; |
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# define default expression to clean all |
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$regexp = qr// unless defined $regexp; |
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# remove options |
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foreach my $key (keys %{$selector->{'option'}}) |
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{ |
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next unless $key =~ m/^\s*$regexp/is; |
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delete $selector->{'option'}->{$key}; |
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} |
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# remove styles |
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foreach my $key (keys %{$selector->{'style'}}) |
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{ |
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next unless $key =~ m/^\s*$regexp/is; |
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delete $selector->{'style'}->{$key}; |
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} |
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# define default expression to clean all |
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$regexp = qr// unless defined $regexp; |
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# remove all background declarations now |
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@{$selector->{'children'}} = grep { |
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not ($_->{'key'} && $_->{'key'} =~ m/^\s*$regexp/is) |
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} @{$selector->{'children'}}; |
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} |
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# EO sub clean |
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#################################################################################################### |
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#################################################################################################### |
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1; |