Find active connector anywhere in the DOM (#9429)

Fixes #9419

client/src/main/java/com/vaadin/client/ApplicationConnection.java

@@ -39,6 +39,7 @@ import com.google.gwt.user.client.Command;
 import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.Timer;
 import com.google.gwt.user.client.ui.HasWidgets;
+import com.google.gwt.user.client.ui.RootPanel;
 import com.google.gwt.user.client.ui.Widget;
 import com.vaadin.client.ApplicationConfiguration.ErrorMessage;
 import com.vaadin.client.ApplicationConnection.ApplicationStoppedEvent;
@@ -1478,16 +1479,17 @@ public class ApplicationConnection implements HasHandlers {
     }
 
     /**
-     * Gets the active connector for focused element in browser.
+     * Gets the active connector for the focused element in the browser.
      *
-     * @return Connector for focused element or null.
+     * @return the connector for the focused element or <code>null</code> if
+     *         none found or no element is focused.
      */
     private ComponentConnector getActiveConnector() {
         Element focusedElement = WidgetUtil.getFocusedElement();
         if (focusedElement == null) {
             return null;
         }
-        return Util.getConnectorForElement(this, getUIConnector().getWidget(),
+        return Util.getConnectorForElement(this, RootPanel.get(),
                 focusedElement);
     }
 

uitest/src/main/java/com/vaadin/tests/components/window/ShortcutInWindow.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2000-2016 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.window;
+
+import com.vaadin.annotations.Widgetset;
+import com.vaadin.event.ShortcutAction.KeyCode;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.shared.ui.ValueChangeMode;
+import com.vaadin.tests.components.AbstractTestUIWithLog;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.HorizontalLayout;
+import com.vaadin.ui.TextField;
+import com.vaadin.ui.VerticalLayout;
+import com.vaadin.ui.Window;
+
+@Widgetset("com.vaadin.DefaultWidgetSet")
+public class ShortcutInWindow extends AbstractTestUIWithLog {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        VerticalLayout content = new VerticalLayout();
+        HorizontalLayout buttons = new HorizontalLayout();
+        final TextField name = new TextField("Name");
+        name.setValueChangeMode(ValueChangeMode.BLUR);
+        name.setValueChangeTimeout(1000);
+        name.addValueChangeListener(
+                (e) -> log("Value Changed: " + e.getValue()));
+        final Button toggle = new Button(name.getValueChangeMode().toString());
+        toggle.addClickListener((e) -> {
+            int o = name.getValueChangeMode().ordinal();
+            int i = ValueChangeMode.values().length <= o + 1 ? 0 : o + 1;
+            ValueChangeMode m = ValueChangeMode.values()[i];
+            toggle.setCaption(m.toString());
+            name.setValueChangeMode(m);
+            log("New ValueChangeMode: " + m.toString());
+        });
+        final Button submit = new Button("Submit",
+                (e) -> log("Submitted value: " + name.getValue()));
+        submit.setClickShortcut(KeyCode.ENTER);
+        buttons.addComponent(toggle);
+        buttons.addComponent(submit);
+        content.addComponent(name);
+        content.addComponent(buttons);
+        Window popup = new Window();
+        popup.center();
+        popup.setContent(content);
+        getUI().addWindow(popup);
+
+    }
+
+}

uitest/src/test/java/com/vaadin/tests/components/window/ShortcutInWindowTest.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2000-2016 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.window;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.openqa.selenium.Keys;
+
+import com.vaadin.testbench.elements.TextFieldElement;
+import com.vaadin.tests.tb3.SingleBrowserTest;
+
+public class ShortcutInWindowTest extends SingleBrowserTest {
+
+    @Test
+    public void shortcutFlushesActiveField() {
+        openTestURL();
+        TextFieldElement tf = $(TextFieldElement.class).first();
+        tf.sendKeys("foo" + Keys.ENTER);
+        Assert.assertEquals("2. Submitted value: foo", getLogRow(0));
+    }
+}