Fix for #271 : "this.selectedItem is undefined" when adding new items to ChosenListBox and calling update()

integration-test/src/main/java/com/arcbees/chosen/integrationtest/client/ChosenSampleIntegrationTests.java

@@ -21,6 +21,7 @@
 
 import com.arcbees.chosen.integrationtest.client.testcases.AllowSingleDeselect;
 import com.arcbees.chosen.integrationtest.client.testcases.ChooseOption;
+import com.arcbees.chosen.integrationtest.client.testcases.ChosenListBoxMultipleSelectAddItems;
 import com.arcbees.chosen.integrationtest.client.testcases.DisableSearchThreshold;
 import com.arcbees.chosen.integrationtest.client.testcases.EnabledDisabled;
 import com.arcbees.chosen.integrationtest.client.testcases.HideEmptyValues;
@@ -70,6 +71,7 @@ public ChosenSampleIntegrationTests() {
         registerTestCase(new SingleBackstrokeDelete());
         registerTestCase(new SimpleValueListBoxOnChange());
         registerTestCase(new SimpleMultiValueListBoxOnChange());
+        registerTestCase(new ChosenListBoxMultipleSelectAddItems());
     }
 
     @Override

integration-test/src/main/java/com/arcbees/chosen/integrationtest/client/testcases/ChosenListBoxMultipleSelectAddItems.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2015 ArcBees Inc.
+ *
+ * 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.arcbees.chosen.integrationtest.client.testcases;
+
+import com.arcbees.chosen.client.gwt.ChosenListBox;
+import com.arcbees.chosen.integrationtest.client.TestCase;
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
+import com.google.gwt.user.client.ui.Button;
+import com.google.gwt.user.client.ui.RootPanel;
+
+public class ChosenListBoxMultipleSelectAddItems extends TestCase {
+    public static final String BUTTON_ID = "ChosenListBoxMultipleSelectAddItems-button";
+    public static final String SELECTED_VALUE = "Six";
+
+    @Override
+    public void run() {
+        final ChosenListBox listBox = new ChosenListBox(true);
+        listBox.setWidth("200px");
+        listBox.addItem("One");
+        listBox.addItem("Two");
+        listBox.addItem("Three");
+
+        Button button = new Button("Add items and select Six");
+        button.getElement().setId(BUTTON_ID);
+        button.addClickHandler(new ClickHandler() {
+            @Override
+            public void onClick(ClickEvent event) {
+                listBox.clear();
+                listBox.addItem("Four");
+                listBox.addItem("Five");
+                listBox.addItem("Six");
+                listBox.update();
+                listBox.setSelectedValue(SELECTED_VALUE);
+            }
+        });
+
+        RootPanel.get().add(listBox);
+        RootPanel.get().add(button);
+    }
+}

integration-test/src/test/java/DesktopChosenIT.java

@@ -24,6 +24,7 @@
 
 import com.arcbees.chosen.integrationtest.client.domain.CarBrand;
 import com.arcbees.chosen.integrationtest.client.testcases.AllowSingleDeselect;
+import com.arcbees.chosen.integrationtest.client.testcases.ChosenListBoxMultipleSelectAddItems;
 import com.arcbees.chosen.integrationtest.client.testcases.MaxSelectedOptions;
 import com.arcbees.chosen.integrationtest.client.testcases.SimpleMultiValueListBox;
 import com.arcbees.chosen.integrationtest.client.testcases.SimpleValueListBox;
@@ -269,6 +270,22 @@ public void singleMobile_mobileLayoutUsed() throws InterruptedException {
         assertThat(getOptions()).isEqualTo(CarBrand.getAllNames(RENDERER));
     }
 
+    /**
+     * Tests that the values are added/selected when using update/setItemSelected.
+     * See https://github.com/ArcBees/gwtchosen/issues/271
+     */
+    @Test
+    public void chosenListBox_updateAndSelect_addsAndSelectItem() {
+        // Given
+        loadTestCase(new ChosenListBoxMultipleSelectAddItems());
+
+        // When
+        getElementById(ChosenListBoxMultipleSelectAddItems.BUTTON_ID).click();
+
+        // Then
+        assertThat(getSelectedOptionText()).isEqualTo(ChosenListBoxMultipleSelectAddItems.SELECTED_VALUE);
+    }
+
     /**
      * Goal: verify that tab navigation is possible when Chosen is within a form.
      */

integration-test/src/test/java/MobileChosenIT.java

@@ -23,6 +23,7 @@
 import org.openqa.selenium.WebElement;
 
 import com.arcbees.chosen.integrationtest.client.domain.CarBrand;
+import com.arcbees.chosen.integrationtest.client.testcases.ChosenListBoxMultipleSelectAddItems;
 import com.arcbees.chosen.integrationtest.client.testcases.MaxSelectedOptions;
 import com.arcbees.chosen.integrationtest.client.testcases.SimpleMultiValueListBox;
 import com.arcbees.chosen.integrationtest.client.testcases.SimpleValueListBox;
@@ -133,6 +134,22 @@ public void singleMobile_closeDropdown() throws InterruptedException {
         assertDropdownIsClosed();
     }
 
+    /**
+     * Tests that the values are added/selected when using update/setItemSelected.
+     * See https://github.com/ArcBees/gwtchosen/issues/271
+     */
+    @Test
+    public void chosenListBox_updateAndSelect_addsAndSelectItem() {
+        // Given
+        loadTestCase(new ChosenListBoxMultipleSelectAddItems());
+
+        // When
+        getElementById(ChosenListBoxMultipleSelectAddItems.BUTTON_ID).click();
+
+        // Then
+        assertThat(getSelectedOptionText()).isEqualTo("1 item selected");
+    }
+
     @Override
     protected void assertDropdownIsClosed() {
         webDriverWait().until(new Predicate<WebDriver>() {

plugin/src/main/java/com/arcbees/chosen/client/AbstractMobileChosenImpl.java

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright 2014 ArcBees Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not

plugin/src/main/java/com/arcbees/chosen/client/ChosenImpl.java

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright 2015 ArcBees Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
@@ -630,7 +630,9 @@ protected void resultsHide() {
     }
 
     protected void resultsResetCleanup() {
-        selectedItem.find("abbr").remove();
+        if (selectedItem != null) {
+            selectedItem.find("abbr").remove();
+        }
     }
 
     protected void resultsSearch() {
@@ -837,9 +839,6 @@ protected void closeField() {
         container.removeClass(css.chznContainerActive());
         winnowResultsClear();
 
-        // TODO check if it's needed
-        // clearBackstroke();
-
         showSearchFieldDefault(defaultText);
         searchFieldScale(fWidth);
     }

plugin/src/main/java/com/arcbees/chosen/client/MobileMultipleChosenImpl.java

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright 2014 ArcBees Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
@@ -80,6 +80,13 @@ protected void onResultSelected(OptionItem item, String newValue, String oldValu
         fireChosenChangeEventIfNotEqual(item, newValue, oldValue);
     }
 
+    @Override
+    protected void update() {
+        super.update();
+
+        closeField();
+    }
+
     private void resultDeselect(OptionItem item, GQuery element) {
         choices--;
 
@@ -103,9 +110,9 @@ protected void resultsHide() {
     private void updateSelectedText() {
         String selectedText;
         if (choices > 1) {
-            selectedText =  getOptions().getManySelectedTextMultipleMobile();
+            selectedText = getOptions().getManySelectedTextMultipleMobile();
         } else {
-            selectedText =  getOptions().getOneSelectedTextMultipleMobile();
+            selectedText = getOptions().getOneSelectedTextMultipleMobile();
         }
 
         selectedText = selectedText.replace("{}", "" + choices);