Add list filter component that allows filtering on attributes specifi…

…ed via the "searchKey" D2W key. Can handle strings, numbers, dates and (localized) enums. Specifying e.g. "(ID, name, dateCreated)" as "searchKey", would result in an ORed qualifier over those three attributes. The filtered list is updated via ajax. To enable, just specify a searchKey for the pageConfiguration.

Frameworks/D2W/ERModernDefaultSkin/WebServerResources/default_screen_stylesheet.css

@@ -1341,6 +1341,23 @@ div.RtActionCell li {
     padding:0;
 }
 
+/* LIST FILTER */
+
+.ListFilter {
+	position: relative;
+	top: 22px;
+	width: 40%;
+	padding: 0 100px;
+	margin: auto;
+	z-index: 100;
+}
+
+.ListFilter input {
+	font-size: 16px;
+	padding: 1px 3px;
+	width: 70%;
+}
+
 /* ATTACHMENT */
 
 .AjaxFlexibleFileUpload {

Frameworks/D2W/ERModernDirectToWeb/Components/Nonlocalized.lproj/ERMD2WListFilter.wo/ERMD2WListFilter.html

@@ -0,0 +1,5 @@
+<div class = "ListFilter">
+  <webobject name = "form">
+    <webobject name = "observeField"> <webobject name = "SearchField" /> </webobject>
+  </webobject>
+</div>

Frameworks/D2W/ERModernDirectToWeb/Components/Nonlocalized.lproj/ERMD2WListFilter.wo/ERMD2WListFilter.wod

@@ -0,0 +1,13 @@
+form : WOForm {
+}
+
+observeField : AjaxObserveField {
+	updateContainerID = d2wContext.idForMainContainer;
+	observeFieldFrequency = 1;
+	action = search;
+}
+
+SearchField: WOTextField {
+	value = searchValue;
+	type = "search";
+}

Frameworks/D2W/ERModernDirectToWeb/Components/Nonlocalized.lproj/ERMD2WListFilter.wo/ERMD2WListFilter.woo

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

Frameworks/D2W/ERModernDirectToWeb/Resources/Properties

@@ -1,3 +1,6 @@
 ##  Properies Info
 er.extensions.load.Properties.framework.ERModernDirectToWeb=load
 er.extensions.ERModernDirectToWeb.hasLocalization=true
+
+# uncomment the following line to use European-style formats in ERMD2WListFilter
+#er.modern.directtoweb.delegates.ERMD2WAttributeQueryDelegate.datePatterns=(dd.MM,dd.MM.,dd.MM.yy,dd.MM.yyyy,yyyy)

Frameworks/D2W/ERModernDirectToWeb/Sources/er/modern/directtoweb/components/query/ERMD2WListFilter.java

@@ -0,0 +1,78 @@
+package er.modern.directtoweb.components.query;
+
+import com.webobjects.appserver.WOActionResults;
+import com.webobjects.appserver.WOContext;
+import com.webobjects.appserver.WOResponse;
+import com.webobjects.eoaccess.EODatabaseDataSource;
+import com.webobjects.eocontrol.EODataSource;
+import com.webobjects.eocontrol.EOQualifier;
+
+import er.ajax.AjaxUtils;
+import er.directtoweb.components.ERDCustomQueryComponent;
+import er.modern.directtoweb.delegates.ERMD2WAttributeQueryDelegate;
+import er.modern.directtoweb.delegates.ERMD2WAttributeQueryDelegate.ERMD2WQueryComponent;
+
+/**
+ * An ajax search field for ad-hoc filtering of lists. Similar to
+ * ERDAjaxSearchDisplayGroup, but enables filtering over multiple attributes.
+ * 
+ * Gets displayed when the searchKey D2W key is not null.
+ * 
+ * @d2wKey searchKey
+ * @d2wKey minimumCharacterCount
+ * 
+ */
+public class ERMD2WListFilter extends ERDCustomQueryComponent implements
+        ERMD2WQueryComponent {
+
+    private static final long serialVersionUID = 1L;
+
+    public interface Keys extends ERDCustomQueryComponent.Keys {
+        public static final String searchKey = "searchKey";
+        public static final String typeAheadMinimumCharacterCount = "typeAheadMinimumCharacterCount";
+    }
+
+    private String _searchValue;
+
+    public ERMD2WListFilter(WOContext context) {
+        super(context);
+    }
+
+    @Override
+    public boolean synchronizesVariablesWithBindings() {
+        return false;
+    }
+
+    // actions
+    public WOActionResults search() {
+        EODataSource dataSource = displayGroup().dataSource();
+        EOQualifier _qualifier = ERMD2WAttributeQueryDelegate.instance
+                .buildQualifier(this);
+        ((EODatabaseDataSource) dataSource).setAuxiliaryQualifier(_qualifier);
+        ((EODatabaseDataSource) displayGroup().dataSource()).fetchSpecification()
+                .setUsesDistinct(true);
+        displayGroup().fetch();
+        displayGroup().setCurrentBatchIndex(1);
+        return null;
+    }
+
+    public void appendToResponse(WOResponse response, WOContext context) {
+        AjaxUtils.addScriptResourceInHead(context, response, "prototype.js");
+        super.appendToResponse(response, context);
+    }
+
+    public void setSearchValue(String searchValue) {
+        _searchValue = searchValue;
+    }
+
+    @Override
+    public String searchValue() {
+        return _searchValue;
+    }
+
+    @Override
+    public EODataSource dataSource() {
+        return displayGroup().dataSource();
+    }
+
+}