eu.maxschuster.vaadin.localstorage.test.LocalStorageUI.java Source code

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Here is the source code for eu.maxschuster.vaadin.localstorage.test.LocalStorageUI.java

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/*
 * eu.maxschuster.vaadin.localstorage.test.LocalStorageUI.java
 * 
 * Copyright 2013 Max Schuster
 *
 * 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 eu.maxschuster.vaadin.localstorage.test;

import com.vaadin.annotations.Push;
import com.vaadin.annotations.Theme;
import com.vaadin.data.Property.ValueChangeEvent;
import com.vaadin.data.Property.ValueChangeListener;
import com.vaadin.server.VaadinRequest;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.CheckBox;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.TextArea;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;

import eu.maxschuster.vaadin.localstorage.LocalStorage;
import eu.maxschuster.vaadin.localstorage.LocalStorage.ItemUpdateListener;
import eu.maxschuster.vaadin.localstorage.LocalStorageItem;
import eu.maxschuster.vaadin.localstorage.LocalStorageItemCallback;
import eu.maxschuster.vaadin.localstorage.LocalStorage.ItemUpdateEvent;

/**
 * Test {@link UI}
 * @author Max Schuster <dev@maxschutser.eu>
 */
@SuppressWarnings("serial")
@Push
@Theme("runo")
public class LocalStorageUI extends UI {

    private final TextArea log = new TextArea("Log:", "");

    @Override
    protected void init(VaadinRequest request) {

        final LocalStorageItemCallback callback = new LocalStorageItemCallback() {

            /*
             * (non-Javadoc)
             * @see eu.maxschuster.vaadin.localstorage.shared.LocalStorageItemCallback#onSussess(java.lang.String, java.lang.String, java.lang.String)
             */
            @Override
            public void onSuccess(LocalStorageItem item) {
                appendToLog("Success:\n" + item);
            }

            /*
             * (non-Javadoc)
             * @see eu.maxschuster.vaadin.localstorage.shared.LocalStorageItemCallback#onError()
             */
            @Override
            public void onError(String key) {
                appendToLog("ERROR for item \"" + key + "\" (simulateNotSupported="
                        + LocalStorage.getCurrent().isSimulateNotSupported() + ")");
            }

        };

        final ItemUpdateListener itemUpdateListener = new ItemUpdateListener() {

            @Override
            public void onUpdate(ItemUpdateEvent event) {
                appendToLog("Update (type=" + event.getType() + "):\n" + event.getItem());
            }

        };

        final VerticalLayout layout = new VerticalLayout();
        layout.setMargin(true);
        layout.setSizeFull();
        setContent(layout);

        final HorizontalLayout topLayout = new HorizontalLayout();
        topLayout.setSpacing(true);
        layout.addComponent(topLayout);
        layout.setExpandRatio(topLayout, 0);

        Button button = new Button("Start", new Button.ClickListener() {
            @Override
            public void buttonClick(ClickEvent event) {

                appendToLog("Start localStorage test:");

                LocalStorage localStorage = LocalStorage.getCurrent();

                localStorage.setItem("remove", "REMOVE ME!");

                localStorage.setItem("test", "Lorem ipsum dolor sit amet, consectetur adipiscing elit.", callback);

                localStorage.removeItem("remove");

                localStorage.setItem("test", "Duis commodo.", callback);

                localStorage.getItem("test", callback);

                localStorage.getItem("remove", callback);

            }
        });
        topLayout.addComponent(button);

        Button clearButton = new Button("Clear localStorage", new Button.ClickListener() {

            @Override
            public void buttonClick(ClickEvent event) {
                LocalStorage.getCurrent().clear(callback);
            }

        });

        CheckBox fireUpdateCheckBox = new CheckBox("Fire update events");
        fireUpdateCheckBox.addValueChangeListener(new ValueChangeListener() {

            @Override
            public void valueChange(ValueChangeEvent event) {
                Boolean value = (Boolean) event.getProperty().getValue();
                if (value)
                    LocalStorage.getCurrent().addItemUpdateListener(itemUpdateListener);
                else
                    LocalStorage.getCurrent().removeItemUpdateListener(itemUpdateListener);
            }

        });

        CheckBox simulateNotSupportedCheckbox = new CheckBox("Simulate not supported");
        simulateNotSupportedCheckbox.addValueChangeListener(new ValueChangeListener() {
            @Override
            public void valueChange(ValueChangeEvent event) {
                LocalStorage.getCurrent().setSimulateNotSupported((Boolean) event.getProperty().getValue());
            }
        });

        topLayout.addComponents(clearButton, fireUpdateCheckBox, simulateNotSupportedCheckbox);

        log.setSizeFull();
        log.setReadOnly(true);
        layout.addComponent(log);
        layout.setExpandRatio(log, 1);

    }

    private void appendToLog(final String string) {
        getUI().access(new Runnable() {
            @Override
            public void run() {
                log.setReadOnly(false);
                log.setValue(new StringBuilder(log.getValue()).append(string).append("\n\n").toString());
                log.setCursorPosition(log.getValue().length() - 1);
                log.setReadOnly(true);
                getUI().focus();
            }
        });
    }

}