- /*
- * 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.application;
-
- import java.util.ArrayList;
- import java.util.Collections;
- import java.util.List;
- import java.util.logging.Handler;
- import java.util.logging.LogRecord;
- import java.util.logging.Logger;
-
- import com.vaadin.server.VaadinRequest;
- import com.vaadin.server.VaadinSession;
- import com.vaadin.tests.components.AbstractReindeerTestUIWithLog;
- import com.vaadin.ui.Button;
- import com.vaadin.ui.Button.ClickEvent;
- import com.vaadin.ui.Component;
- import com.vaadin.ui.CssLayout;
- import com.vaadin.ui.Label;
- import com.vaadin.ui.SelectiveRenderer;
-
- public class MissingHierarchyDetection extends AbstractReindeerTestUIWithLog {
-
- private boolean isChildRendered = true;
- private BrokenCssLayout brokenLayout = new BrokenCssLayout();
-
- private CssLayout normalLayout = new CssLayout(
- new Label("Normal layout child"));
- private List<LogRecord> pendingErrors = Collections
- .synchronizedList(new ArrayList<>());
-
- public class BrokenCssLayout extends CssLayout
- implements SelectiveRenderer {
- public BrokenCssLayout() {
- setCaption("Broken layout");
- Label label = new Label("Child component");
- label.setId("label");
- addComponent(label);
- }
-
- @Override
- public boolean isRendered(Component childComponent) {
- return isChildRendered;
- }
- }
-
- @Override
- protected void setup(VaadinRequest request) {
- // Catch log messages so we can see if there is an error
- Logger vaadinSessionLogger = Logger
- .getLogger(VaadinSession.class.getName());
- vaadinSessionLogger.addHandler(new Handler() {
-
- @Override
- public void publish(LogRecord record) {
- if (record.getThrown() instanceof AssertionError) {
- pendingErrors.add(record);
- vaadinSessionLogger.removeHandler(this);
- }
- }
-
- @Override
- public void flush() {
-
- }
-
- @Override
- public void close() throws SecurityException {
-
- }
- });
- addComponent(brokenLayout);
- addComponent(normalLayout);
- addComponent(new Button("Toggle properly", new Button.ClickListener() {
- @Override
- public void buttonClick(ClickEvent event) {
- toggle(true);
- }
- }));
- addComponent(
- new Button("Toggle improperly", new Button.ClickListener() {
- @Override
- public void buttonClick(ClickEvent event) {
- toggle(false);
- }
- }));
- addComponent(new Button("Check for errors", new Button.ClickListener() {
- @Override
- public void buttonClick(ClickEvent event) {
- if (!pendingErrors.isEmpty()) {
- log(pendingErrors.remove(0).getThrown().getMessage());
- } else {
- log("No errors");
- }
- }
- }));
- }
-
- private void toggle(boolean properly) {
- isChildRendered = !isChildRendered;
- if (properly) {
- brokenLayout.markAsDirtyRecursive();
- }
-
- normalLayout.getComponent(0).setVisible(isChildRendered);
- // Must also have a state change of the layout to trigger special case
- // related to optimizations
- normalLayout.setCaption("With child: " + isChildRendered);
- }
- }
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