Update active tab index when overriding selection (#15274)

Change-Id: Ic6704be620a3134a52fd3eb6efcd9af1e628dc18

client/src/com/vaadin/client/ui/tabsheet/TabsheetConnector.java

@@ -42,6 +42,7 @@ public class TabsheetConnector extends TabsheetBaseConnector implements
                     final boolean selected = key.equals(getState().selected);
                     if (selected) {
                         getWidget().waitingForResponse = false;
+                        getWidget().setActiveTabIndex(i);
                         getWidget().selectTab(i);
                         break;
                     }

uitest/src/com/vaadin/tests/components/tabsheet/VetoTabChange.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2000-2014 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.tests.components.tabsheet;
+
+import com.vaadin.annotations.Theme;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.Label;
+import com.vaadin.ui.TabSheet;
+import com.vaadin.ui.TabSheet.SelectedTabChangeEvent;
+import com.vaadin.ui.TabSheet.SelectedTabChangeListener;
+
+@Theme("valo")
+public class VetoTabChange extends AbstractTestUI {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        final TabSheet ts = new TabSheet();
+        ts.addSelectedTabChangeListener(new SelectedTabChangeListener() {
+            @Override
+            public void selectedTabChange(SelectedTabChangeEvent event) {
+                ts.setSelectedTab(0);
+            }
+        });
+
+        ts.addTab(new Label("Tab 1"), "Tab 1");
+        ts.addTab(new Label("Tab 2"), "Tab 2");
+
+        addComponent(ts);
+    }
+
+    @Override
+    public String getDescription() {
+        return "Tests the behavior when there's a listener that always changes back to the first tab.";
+    }
+
+}

uitest/src/com/vaadin/tests/components/tabsheet/VetoTabChangeTest.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2000-2014 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.tests.components.tabsheet;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.vaadin.testbench.elements.LabelElement;
+import com.vaadin.testbench.elements.TabSheetElement;
+import com.vaadin.tests.tb3.SingleBrowserTest;
+
+public class VetoTabChangeTest extends SingleBrowserTest {
+    @Test
+    public void testReselectTabAfterVeto() {
+        openTestURL();
+
+        TabSheetElement tabSheet = $(TabSheetElement.class).first();
+        Assert.assertEquals("Tab 1 should be there by default", "Tab 1",
+                getTabContent(tabSheet));
+
+        tabSheet.openTab(1);
+
+        Assert.assertEquals("Tab should not have changed", "Tab 1",
+                getTabContent(tabSheet));
+
+        tabSheet.openTab(0);
+        Assert.assertEquals("Tab should still be there", "Tab 1",
+                getTabContent(tabSheet));
+    }
+
+    private String getTabContent(TabSheetElement tabSheet) {
+        return tabSheet.getContent(LabelElement.class).getText();
+    }
+}