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+/*
+ * Copyright 2011 Vaadin Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.event;
+
+import java.io.Serializable;
+import java.lang.reflect.Method;
+
+import com.vaadin.data.Item;
+import com.vaadin.data.Property;
+import com.vaadin.event.MouseEvents.ClickEvent;
+import com.vaadin.shared.MouseEventDetails;
+import com.vaadin.ui.Component;
+
+/**
+ *
+ * Click event fired by a {@link Component} implementing
+ * {@link com.vaadin.data.Container} interface. ItemClickEvents happens on an
+ * {@link Item} rendered somehow on terminal. Event may also contain a specific
+ * {@link Property} on which the click event happened.
+ *
+ * @since 5.3
+ *
+ */
+@SuppressWarnings("serial")
+public class ItemClickEvent extends ClickEvent implements Serializable {
+ private Item item;
+ private Object itemId;
+ private Object propertyId;
+
+ public ItemClickEvent(Component source, Item item, Object itemId,
+ Object propertyId, MouseEventDetails details) {
+ super(source, details);
+ this.item = item;
+ this.itemId = itemId;
+ this.propertyId = propertyId;
+ }
+
+ /**
+ * Gets the item on which the click event occurred.
+ *
+ * @return item which was clicked
+ */
+ public Item getItem() {
+ return item;
+ }
+
+ /**
+ * Gets a possible identifier in source for clicked Item
+ *
+ * @return
+ */
+ public Object getItemId() {
+ return itemId;
+ }
+
+ /**
+ * Returns property on which click event occurred. Returns null if source
+ * cannot be resolved at property leve. For example if clicked a cell in
+ * table, the "column id" is returned.
+ *
+ * @return a property id of clicked property or null if click didn't occur
+ * on any distinct property.
+ */
+ public Object getPropertyId() {
+ return propertyId;
+ }
+
+ public static final Method ITEM_CLICK_METHOD;
+
+ static {
+ try {
+ ITEM_CLICK_METHOD = ItemClickListener.class.getDeclaredMethod(
+ "itemClick", new Class[] { ItemClickEvent.class });
+ } catch (final java.lang.NoSuchMethodException e) {
+ // This should never happen
+ throw new java.lang.RuntimeException();
+ }
+ }
+
+ public interface ItemClickListener extends Serializable {
+ public void itemClick(ItemClickEvent event);
+ }
+
+ /**
+ * The interface for adding and removing <code>ItemClickEvent</code>
+ * listeners. By implementing this interface a class explicitly announces
+ * that it will generate an <code>ItemClickEvent</code> when one of its
+ * items is clicked.
+ * <p>
+ * Note: The general Java convention is not to explicitly declare that a
+ * class generates events, but to directly define the
+ * <code>addListener</code> and <code>removeListener</code> methods. That
+ * way the caller of these methods has no real way of finding out if the
+ * class really will send the events, or if it just defines the methods to
+ * be able to implement an interface.
+ * </p>
+ *
+ * @since 6.5
+ * @see ItemClickListener
+ * @see ItemClickEvent
+ */
+ public interface ItemClickNotifier extends Serializable {
+ /**
+ * Register a listener to handle {@link ItemClickEvent}s.
+ *
+ * @param listener
+ * ItemClickListener to be registered
+ */
+ public void addListener(ItemClickListener listener);
+
+ /**
+ * Removes an ItemClickListener.
+ *
+ * @param listener
+ * ItemClickListener to be removed
+ */
+ public void removeListener(ItemClickListener listener);
+ }
+
+}