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lib/Apache/PageKit/View.pm  view on Meta::CPAN

sub _include_components {
  my ($view, $page_id, $html_code_ref, $pkit_view) = @_;

  if ( $view->{relaxed_parser} eq 'yes' ) {
    $$html_code_ref =~ s%<(!--)?\s*PKIT_COMPONENT($key_value_pattern+)\s*/?(?(1)--)?>(?:<(!--)?\s*/PKIT_COMPONENT\s*(?(1)--)>)?%get_component($page_id,$2,$view,$pkit_view)%eig;
  } else {
    $$html_code_ref =~ s%<\s*PKIT_COMPONENT($key_value_pattern+)\s*/?>(<\s*/PKIT_COMPONENT\s*>)?%&get_component($page_id,$1,$view,$pkit_view)%eig;
  }

  sub get_component {
    my ($page_id, $params, $view, $pkit_view) = @_;
    my %params = ();

    while($params =~ m!$key_value_pattern!ig) {
      $params{uc($2)} = $+;
    }

    my $component_id = delete $params{NAME} or die qq{component item "NAME=..." not found};

    unless($component_id =~ s!^/!!){
      # relative component, component relative to page_id
      (my $page_id_dir = $page_id) =~ s![^/]*$!!;
      $component_id = $page_id_dir . $component_id;
      while ($component_id =~ s![^/]*/\.\./!!) {};
    }

    my $cid_key = join '', $component_id, sort %params;
    unless ( $view->{component_ids_hash}->{$cid_key}++ ) {
      push @{ $view->{component_ids} }, [ $component_id , \%params ];
    }
    
    # check for recursive pkit_components
    if($view->{component_ids_hash}->{$cid_key} > 100){
      die "Likely recursive PKIT_COMPONENTS for component_id $component_id and giving up.";
    }

    my $template_ref = $view->_load_component($page_id, $component_id, $pkit_view, \%params);
    return $$template_ref;
  }
}

sub _is_record_uptodate {
  my ($view, $record, $pkit_view, $page_id) = @_;

  # first check timestamps
  my $include_mtimes = $record->{include_mtimes};
  while (my ($filename, $cache_mtime) = each %$include_mtimes){
    # check if file still exists
    unless(-f "$filename"){
      return 0;
    }

    # check if file is up to date
    my $file_mtime = (stat($filename))[9];
#    print "hi $filename - $cache_mtime - $file_mtime<br>";
    if($file_mtime != $cache_mtime){
      return 0;
    }

    if($filename =~ m!^$view->{view_dir}/Default/! && $pkit_view ne 'Default'){
      # check to see if any new files have been uploaded to the $pkit_view dir
      (my $check_filename = $filename) =~ s!^$view->{view_dir}/Default/!$view->{view_dir}/$pkit_view/!;
      if (-f "$check_filename"){
	return 0;
      }
    }
  }

  # record up to date!
  return 1;
}

# here the usage of "component" also includes page
sub _load_component {
  my ($view, $page_id, $component_id, $pkit_view, $component_params) = @_;

  my $template_file = $view->_find_template($pkit_view, $component_id);
  my $template_ref;

  unless($template_file){
    # no template file exists, attempt to generate from XML and XSL files
    # currently only XML::LibXSLT is supported
    $template_ref = $view->{content}->generate_template($page_id, $component_id, $pkit_view, $view->{input_param_object}, $component_params);
  } else {
    open TEMPLATE, "<$template_file" or die "can not read $template_file";
    binmode TEMPLATE;
    local($/) = undef;
    my $template = <TEMPLATE>;
    close TEMPLATE;
    
    # expand PKIT_MACRO tags
    $template =~ s!<\s*PKIT_MACRO$key_value_pattern\s*/?>!$component_params->{uc($+)} || ''!egi;

    $template_ref = \$template;

    my $mtime = (stat(_))[9];
    $view->{include_mtimes}->{$template_file} = $mtime;
  }

  if($view->{can_edit} eq 'yes'){
    Apache::PageKit::Edit::add_component_edit_stubs($view, $page_id, $template_ref, $pkit_view);
  }

  $view->_include_components($page_id,$template_ref,$pkit_view);

  return $template_ref;
}

sub _load_page {
  my ($view, $page_id, $pkit_view) = @_;

  $Apache::PageKit::Content::PAGE_ID_XSL_PARAMS->{$page_id} = {};

  my $content = $view->{content} ||= Apache::PageKit::Content->new(
						     content_dir => $view->{content_dir},
						     view_dir => $view->{view_dir},
						     default_lang => $view->{default_lang},
                                                     relaxed_parser => $view->{relaxed_parser},
                                                     template_class => $view->{template_class},
                                                     );