Handling of weblog index (including killing nested a elements).

1 files changed, 100 insertions, 0 deletions

diff --git a/org/madore/damlengine/TodoWeblogIndexSelectElement.java b/org/madore/damlengine/TodoWeblogIndexSelectElement.java
new file mode 100644
index 0000000..b82953a
--- /dev/null
+++ b/org/madore/damlengine/TodoWeblogIndexSelectElement.java
@@ -0,0 +1,100 @@
+package org.madore.damlengine;
+
+import java.util.Iterator;
+import java.util.ArrayList;
+import java.util.TreeSet;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+import org.w3c.dom.*;
+import org.w3c.dom.ls.DOMImplementationLS;
+import org.w3c.dom.ls.LSParser;
+import org.w3c.dom.ls.LSInput;
+
+public final class TodoWeblogIndexSelectElement extends TodoDefaultElement {
+
+    public static class Factory extends TodoElement.Factory {
+	@Override
+	public TodoWeblogIndexSelectElement newItem(Element node,
+						    Context ctx,
+						    TodoItem caller) {
+	    return new TodoWeblogIndexSelectElement(node, ctx, caller);
+	}
+    }
+
+    public TodoWeblogIndexSelectElement(Element node,
+					Context ctx,
+					TodoItem caller) {
+	super(node, ctx, caller);
+    }
+
+    @Override
+    public void handleNodeOnly() {
+	WeblogSummary wsum = WeblogSummary.getSummary();
+	if ( wsum == null || wsum.entries == null ) {
+	    throw new IllegalStateException("weblog-index-select element encountered with no weblog summary available");
+	}
+	TreeSet<Integer> entlist = new TreeSet<Integer>(wsum.entries.keySet());
+	Element ul = ctx.doc.createElementNS(DamlEngine.XHTML_NS, "ul");
+	ul.setAttributeNS(null, "id", "index");
+	ul.appendChild(ctx.doc.createTextNode("\n"));
+	node.getParentNode().replaceChild(ul, node);
+	final DOMImplementationLS domi
+	    = (DOMImplementationLS)ctx.doc.getImplementation();
+	LSParser par = domi.createLSParser(DOMImplementationLS.MODE_SYNCHRONOUS, null);
+	ArrayList<TodoElement> toProcess
+	    = new ArrayList<TodoElement>(entlist.size()*2);
+	Context ctx2 = ctx.clone();  ctx2.killA = true;
+	for ( Iterator<Integer> iter=entlist.descendingIterator() ; iter.hasNext() ; ) {
+	    WeblogSummary.EntrySummary ent = wsum.entries.get(iter.next());
+	    Matcher matcher = Pattern.compile("^(\\d{4})-(\\d{2})-(\\d{2})$").matcher(ent.date);
+	    if ( ! matcher.matches() )
+		throw new IllegalArgumentException("entry "+ent.id+" has badly formed date");
+	    String yearStr = matcher.group(1);
+	    String monthStr = matcher.group(2);
+	    String dayStr = matcher.group(3);
+	    String numberStr = String.format("%04d",ent.id);
+	    String targetFile = "";
+	    targetFile = ((ctx.gc.uriToTop==null)?"":(ctx.gc.uriToTop+"weblog/"))
+		+ yearStr + "-" + monthStr + ".html";
+	    String targetFragment = "d." + yearStr + "-" + monthStr
+		+ "-" + dayStr + "." + numberStr;
+	    String target = targetFile + "#" + targetFragment;
+	    Element li = ctx.doc.createElementNS(DamlEngine.XHTML_NS, "li");
+	    ul.appendChild(li);
+	    ul.appendChild(ctx.doc.createTextNode("\n"));
+	    li.setAttributeNS(null, "id", targetFragment);
+	    li.setAttributeNS(null, "class", "weblog-index-entry");
+	    LangHelper.setLangRec(li, ent.lang);
+	    Element link;
+	    if ( ent.titleXml == null ) {
+		link = ctx.doc.createElementNS(DamlEngine.XHTML_NS, "a");
+		li.appendChild(link);
+		link.appendChild(ctx.doc.createTextNode(ent.date));
+	    } else {
+		li.appendChild(ctx.doc.createTextNode(ent.date+": "));
+		link = ctx.doc.createElementNS(DamlEngine.XHTML_NS, "a");
+		li.appendChild(link);
+		LSInput input = domi.createLSInput();
+		input.setStringData(ent.titleXml);
+		Document temp = par.parse(input);
+		Node newNode = ctx.doc.adoptNode(temp.getDocumentElement());
+		String explicitLang = LangHelper.getLangNorec(newNode);
+		if ( explicitLang != null )
+		    LangHelper.setLangNorec(link, explicitLang);
+		ArrayList<Node> childList = getChildList(newNode);
+		for ( Node child : childList ) {
+		    link.appendChild(child);
+		    if ( child instanceof Element ) {
+			TodoElement it
+			    = TodoElement.getTodoElement((Element)child,
+							 ctx2, this);
+			toProcess.add(it);
+		    }
+		}
+	    }
+	    link.setAttributeNS(null, "href", target);
+	}
+	this.ownerDeque.registerAtStart(toProcess);
+    }
+
+}