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williamc |
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#
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# The base functionality for the ActiveDocument - inherits from Basetags
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#
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# Inherits from BaseTags
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# --------
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# Interface
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# ---------
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# new(filename, ObjectStoreCont): create a new object based on a file and
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# associate with the given ObjectStoreCont
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# parse() : parse the input file
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# include(url) : Activate include file mechanism, returns the object ref if OK
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# treenode() : return the associated TreeNode object reference
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# getincludeObjectStore : Return a pointer to the ObectStore that contains all
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# included objects
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# find(string) : find the object reference related to string in the associated
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# tree. Mechanism for getting object references
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package ActiveDoc;
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use BaseTags;
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use DOChandler;
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use ObjectStoreCont;
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@ISA = qw (BaseTags);
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# Initialise
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sub _init {
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my $self=shift;
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my $OC=shift;
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$self->_addurl();
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$self->{OC}=$OC;
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$self->{treenode)=TreeNode->new();
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$self->{includeOS}=$self->{OC}->newStore();
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$self->{dochandler}=DOChandler->new($self->{includeOS});
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# Add the minimal functionality tag - feel free to override
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$self->{tags}->addtag("Include", \&Include_Start, "", "");
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}
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#
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# Include mechanism
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#
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sub include {
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my $self=shift;
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my $url=shift;
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my $obj;
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$obj=$self->{dochandler}->newdoc($url);
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# Now Extend our tree
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$self->{treenode}->grow($obj->treenode());
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return $obj;
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}
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sub treenode {
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my $self=shift;
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return $self->treenode;
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}
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sub getincludeObjectStore {
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my $self=shift;
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return $self->{includeOS};
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}
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sub find($) {
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my $self=shift;
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my $string=shift;
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$self->{treenode}->find($string);
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}
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# ------------------------ Tag Routines ------------------------------
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#
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# A default Include tag
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#
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sub Include_Start {
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my $returnval;
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# Just call the basic - this is only a default wrapper for the
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# <INCLUDE> tag assuming with no futher processing of the DOCObjref
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$returnval=_includetag(@_)
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# dont return anything if its a basic tag
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}
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# ----------------------- Support Routines ---------------------------
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#
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# the real workings of the include tag returns the ref
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#
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sub _includetag {
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my $self=shift;
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my $name=shift;
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my $hashref=shift;
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$self->{switch}->checkparam( $name, "ref");
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$url=$$hashref{'ref'};
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return $self->include($url);
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}
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