adding facet filter (like solr, ebay etc) first cut. Contribution com…

…ing from SourceForge

Frameworks/Core/ERDirectToWeb/Components/ERDFacetFilter.api

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<wodefinitions>
+        <wo wocomponentcontent="false" class="ERDFacetFilter.java">
+
+        </wo>
+</wodefinitions>

Frameworks/Core/ERDirectToWeb/Components/Nonlocalized.lproj/ERDFacetFilter.wo/ERDFacetFilter.html

@@ -0,0 +1,18 @@
+<webobject name = "HasKeyList">
+  <ul class = "keyList">
+    <webobject name = "KeyList">
+      <webobject name = "HasValueList">
+        <li class = "key">
+          <webobject name = "Key" />
+          <ul>
+            <webobject name = "ValueList">
+              <li>
+                <webobject name = "IsSelectedValue">[X]</webobject>  <webobject name = "ValueLink"><webobject name = "Value" /></webobject> (<webobject name = "ValueCount" />)</li>
+            </webobject>
+            <webobject name = "HasSelectedValues"><li><webobject name = "ClearSelectionLink">[Clear]</webobject></li></webobject>
+          </ul>
+        </li>
+      </webobject>
+    </webobject>
+  </ul>
+</webobject>

Frameworks/Core/ERDirectToWeb/Components/Nonlocalized.lproj/ERDFacetFilter.wo/ERDFacetFilter.wod

@@ -0,0 +1,45 @@
+HasKeyList: WOConditional {
+	condition = keyList.@count;
+}
+
+KeyList: WORepetition {
+	list = keyList;
+	item = currentKey;
+}
+
+Key: WOString {
+	value = currentKey;
+}
+
+HasValueList: WOConditional {
+	condition = valueList.@count;
+}
+
+ValueList: WORepetition {
+	list = valueList;
+	item = currentValue;
+}
+
+IsSelectedValue: WOConditional {
+	condition = isCurrentValueSelected;
+}
+
+HasSelectedValues: WOConditional {
+	condition = hasSelectedValues;
+}
+
+ClearSelectionLink: WOHyperlink {
+	action = clearSelectedValues;
+}
+
+Value: WOString {
+	value = currentValue;
+}
+
+ValueCount: WOString {
+	value = currentValueCount;
+}
+
+ValueLink: WOHyperlink {
+	action = selectCurrentValue;
+}

Frameworks/Core/ERDirectToWeb/Components/Nonlocalized.lproj/ERDFacetFilter.wo/ERDFacetFilter.woo

@@ -0,0 +1,4 @@
+{
+	"WebObjects Release" = "WebObjects 5.0";
+	encoding = "UTF-8";
+}

Frameworks/Core/ERDirectToWeb/Sources/er/directtoweb/components/ERDFacetFilter.java

@@ -0,0 +1,109 @@
+package er.directtoweb.components;
+
+import com.webobjects.appserver.WOActionResults;
+import com.webobjects.appserver.WOContext;
+import com.webobjects.eocontrol.EOEnterpriseObject;
+import com.webobjects.foundation.NSArray;
+import com.webobjects.foundation.NSDictionary;
+import com.webobjects.foundation.NSMutableArray;
+import com.webobjects.foundation.NSMutableDictionary;
+import com.webobjects.foundation.NSMutableSet;
+
+import er.extensions.eof.ERXS;
+import er.extensions.foundation.ERXArrayUtilities;
+
+public class ERDFacetFilter extends ERDCustomQueryComponent {
+
+	public Object currentValue;
+	public String currentKey;
+	private NSArray<EOEnterpriseObject> _allObjects;
+
+	private NSMutableDictionary<String, NSDictionary<Object, NSArray<EOEnterpriseObject>>> values = new NSMutableDictionary();
+	private NSMutableDictionary<String, NSMutableArray<Object>> selectedValues = new NSMutableDictionary();
+
+	public ERDFacetFilter(WOContext context) {
+		super(context);
+	}
+
+	@Override
+	public boolean synchronizesVariablesWithBindings() {
+		return false;
+	}
+
+	public NSArray<EOEnterpriseObject> allObjects() {
+		if(_allObjects == null && allKeys() != null) {
+			_allObjects = (NSArray<EOEnterpriseObject>) displayGroup().allObjects();
+			values.removeAllObjects();
+			selectedValues.removeAllObjects();
+			for (String keyPath : allKeys()) {
+				NSDictionary<Object, NSArray<EOEnterpriseObject>> groupedObjects = ERXArrayUtilities.arrayGroupedByKeyPath(_allObjects, keyPath);
+				values.setObjectForKey(groupedObjects, keyPath);
+				selectedValues.setObjectForKey(new NSMutableArray(), keyPath);
+			}
+		}
+		return _allObjects;
+	}
+
+	public NSArray<String> allKeys() {
+		return (NSArray<String>) valueForBinding("groupingKeys");
+	}
+
+	public NSArray valueList() {
+		return ERXS.asc("toString").sorted(values.objectForKey(currentKey).allKeys());
+	}
+
+	public int currentValueCount() {
+		return values.objectForKey(currentKey).objectForKey(currentValue).count();
+	}
+
+	public NSArray keyList() {
+		allObjects();
+		return values.allKeys();
+	}
+
+	public boolean isCurrentValueSelected() {
+		NSMutableArray<Object> selected = selectedValues.objectForKey(currentKey);
+		return selected.containsObject(currentValue);
+	}
+
+	public WOActionResults selectCurrentValue() {
+		NSMutableArray<Object> selected = selectedValues.objectForKey(currentKey);
+		if(selected.containsObject(currentValue)) {
+			selected.removeObject(currentValue);
+		} else {
+			selected.addObject(currentValue);
+		}
+		updateSelectedValues();
+		return null;
+	}
+
+	public void updateSelectedValues() {
+		if (selectedValues.count() > 0) {
+			NSMutableSet eos = new NSMutableSet(allObjects());
+			for (String key : selectedValues.allKeys()) {
+				NSMutableArray<Object> selection = selectedValues.objectForKey(key);
+				if (selection.count() > 0) {
+					NSMutableSet currentEos = new NSMutableSet();
+					for (Object value : selection) {
+						currentEos.addObjectsFromArray(values.objectForKey(key).objectForKey(value));
+					}
+					eos.intersectSet(currentEos);
+				}
+			}
+			displayGroup().setObjectArray(eos.allObjects());
+			displayGroup().setSortOrderings(displayGroup().sortOrderings());
+		} else {
+			displayGroup().setObjectArray(null);
+		}
+	}
+
+	public boolean hasSelectedValues() {
+		return selectedValues.objectForKey(currentKey).count() > 0;
+	}
+
+	public WOActionResults clearSelectedValues() {
+		selectedValues.objectForKey(currentKey).removeAllObjects();
+		updateSelectedValues();
+		return null;
+	}
+}