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package org.madore.damlengine;
import org.w3c.dom.*;
public class TodoWXrefAttr extends TodoAttr {
public static class Factory extends TodoAttr.Factory {
@Override
public TodoWXrefAttr newItem(Attr attr, Element owner,
Context ctx,
TodoItem caller) {
return new TodoWXrefAttr(attr, owner, ctx, caller);
}
}
public TodoWXrefAttr(Attr attr, Element owner,
Context ctx,
TodoItem caller) {
super(attr, owner, ctx, caller);
}
@Override
public void handle() {
String wxrefStr = attr.getValue();
if ( wxrefStr.equals("##weblog-selection-older")
|| wxrefStr.equals("##weblog-selection-newer") ) {
if ( ctx.wsc == null )
throw new IllegalStateException("wxref attribute encountered with no weblog selection state");
final int trgt = ctx.wsc.sel.first()
+ (wxrefStr.equals("##weblog-selection-older") ? -1 : 1);
WeblogSummary sum = WeblogSummary.getSummary(ctx.dc);
if ( sum != null && sum.entries != null
&& sum.entries.containsKey(new Integer(trgt)) ) {
WeblogSummary.EntrySummary ent
= sum.entries.get(new Integer(trgt));
String target = "#d." + ent.date + "."
+ String.format("%04d", ent.id);
this.owner.removeAttributeNode(this.attr);
Attr newAttr
= ctx.doc.createAttributeNS(DamlEngine.DAML_NS, "d:wref");
newAttr.setValue(target);
this.owner.setAttributeNodeNS(newAttr);
if ( ! this.owner.hasAttributeNS(DamlEngine.DAML_NS, "d:wrefcat") ) {
if ( ctx.wsc instanceof Context.WeblogMonthSelectionContext
|| ctx.wsc instanceof Context.WeblogRecentSelectionContext )
this.owner.setAttributeNS(DamlEngine.DAML_NS, "d:wrefcat", "@month");
}
this.ownerDeque.registerAtStart(new TodoWrefAttr(newAttr, this.owner,
this.ctx, this));
} else {
String target = ((ctx.gc.uriToTop==null)?"":(ctx.gc.uriToTop+"weblog/"))
+ "weblog-index.html";
this.owner.removeAttributeNode(this.attr);
Attr newAttr = ctx.doc.createAttributeNS(null, "href");
newAttr.setValue(target);
this.owner.setAttributeNodeNS(newAttr);
}
} else
throw new IllegalArgumentException("couldn't understand argument to wxref attribute");
}
}
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