Merge branch v3.0.0 into master

pom.xml

@@ -6,7 +6,7 @@
 	<version>2.9.3-SNAPSHOT</version>
 	<name>TwinColGrid add-on</name>
     <properties>
-        <vaadin.version>14.8.1</vaadin.version>
+        <vaadin.version>14.8.20</vaadin.version>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

src/main/java/com/flowingcode/vaadin/addons/twincolgrid/FilterableTwinColumn.java

@@ -0,0 +1,127 @@
+package com.flowingcode.vaadin.addons.twincolgrid;
+
+import com.vaadin.flow.component.Component;
+import com.vaadin.flow.component.grid.Grid.Column;
+import com.vaadin.flow.component.grid.SortOrderProvider;
+import com.vaadin.flow.component.textfield.TextField;
+import com.vaadin.flow.function.SerializableFunction;
+import com.vaadin.flow.function.ValueProvider;
+import java.util.Comparator;
+import java.util.function.Supplier;
+
+/** Fluent helper object that delegates setters on both columns. */
+public class FilterableTwinColumn<T> extends TwinColumn<T> {
+
+  public FilterableTwinColumn(Column<T> availableColumn, Column<T> selectionColumn) {
+    super(availableColumn, selectionColumn);
+  }
+
+  /**
+   * Set the placeholder of the filter text field on both columns.
+   *
+   * @see TextField#setPlaceholder(String)
+   */
+  public FilterableTwinColumn<T> setFilterPlaceholder(String filterPlaceholder) {
+    TwinColGrid.getFilterTextField(getAvailableColumn()).setPlaceholder(filterPlaceholder);
+    TwinColGrid.getFilterTextField(getSelectionColumn()).setPlaceholder(filterPlaceholder);
+    return this;
+  }
+
+  /**
+   * Set to {@code false} to hide the clear button which clears the filter text field.
+   *
+   * @see TextField#setClearButtonVisible(boolean)
+   */
+  public FilterableTwinColumn<T> setClearButtonVisible(boolean clearButtonVisible) {
+    TwinColGrid.getFilterTextField(getAvailableColumn()).setClearButtonVisible(clearButtonVisible);
+    TwinColGrid.getFilterTextField(getSelectionColumn()).setClearButtonVisible(clearButtonVisible);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setWidth(String width) {
+    super.setWidth(width);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setFlexGrow(int flexGrow) {
+    super.setFlexGrow(flexGrow);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setAutoWidth(boolean autoWidth) {
+    super.setAutoWidth(autoWidth);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setKey(String key) {
+    super.setKey(key);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setComparator(Comparator<T> comparator) {
+    super.setComparator(comparator);
+    return this;
+  }
+
+  @Override
+  public <V extends Comparable<? super V>> TwinColumn<T> setComparator(
+      ValueProvider<T, V> keyExtractor) {
+    super.setComparator(keyExtractor);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setSortProperty(String... properties) {
+    super.setSortProperty(properties);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setSortOrderProvider(SortOrderProvider provider) {
+    super.setSortOrderProvider(provider);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setSortable(boolean sortable) {
+    super.setSortable(sortable);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setHeader(String labelText) {
+    super.setHeader(labelText);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setFooter(String labelText) {
+    super.setFooter(labelText);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setHeader(Supplier<Component> footerComponentSupplier) {
+    super.setHeader(footerComponentSupplier);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setFooter(Supplier<Component> footerComponentSupplier) {
+    super.setFooter(footerComponentSupplier);
+    return this;
+  }
+
+  @Override
+  public FilterableTwinColumn<T> setClassNameGenerator(
+      SerializableFunction<T, String> classNameGenerator) {
+    super.setClassNameGenerator(classNameGenerator);
+    return this;
+  }
+
+}