pl.morgwai.sample.gwtGuiceHibernate.gwtPresentation.UserSearchEntryPoint.java Source code

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Here is the source code for pl.morgwai.sample.gwtGuiceHibernate.gwtPresentation.UserSearchEntryPoint.java

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/*
 * Copyright 2015 Piotr Morgwai Kotarbinski
 *
 * 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 pl.morgwai.sample.gwtGuiceHibernate.gwtPresentation;

import java.util.List;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
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.DialogBox;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.ValueBoxBase.TextAlignment;
import com.google.web.bindery.event.shared.EventBus;
import com.google.web.bindery.event.shared.SimpleEventBus;
import com.google.web.bindery.requestfactory.shared.Receiver;
import com.google.web.bindery.requestfactory.shared.ServerFailure;

import pl.morgwai.sample.gwtGuiceHibernate.entityProxies.UserProxy;
import pl.morgwai.sample.gwtGuiceHibernate.gwtRequestBuilders.RequestBuilderFactory;

public class UserSearchEntryPoint implements EntryPoint {

    public static final String CREATE_USER_PANEL_ID = "createUserPanel";
    public static final String USER_SEARCH_PANEL_ID = "userSearchPanel";
    public static final String SEARCH_RESULTS_PANEL_ID = "searchResultsPanel";

    RequestBuilderFactory serviceFactory;
    Messages messages = GWT.create(Messages.class);

    DialogBox createUserDialogBox;

    FlexTable resultsFlexTable;
    Button searchButton;

    @Override
    public void onModuleLoad() {
        serviceFactory = GWT.create(RequestBuilderFactory.class);
        EventBus eventBus = new SimpleEventBus();
        serviceFactory.initialize(eventBus);

        RootPanel createUserPanel = RootPanel.get(CREATE_USER_PANEL_ID);

        final TextBox newUserNameTextBox = new TextBox();
        newUserNameTextBox.setName("newUserName");
        newUserNameTextBox.setMaxLength(64);
        newUserNameTextBox.setText(messages.newUserNamePrompt());
        createUserPanel.add(newUserNameTextBox);

        final Button createUserButton = new Button(messages.createUserButtonLabel());
        createUserPanel.add(createUserButton);
        createUserButton.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                createUserButton.setEnabled(false);
                createUser(newUserNameTextBox.getText());
                newUserNameTextBox.setText("");
            }
        });

        createUserDialogBox = new DialogBox();
        Button closeButton = new Button(messages.closeButtonLabel());
        createUserDialogBox.add(closeButton);
        closeButton.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                createUserDialogBox.hide();
                createUserButton.setEnabled(true);
            }
        });

        RootPanel userSearchPanel = RootPanel.get(USER_SEARCH_PANEL_ID);

        final TextBox searchNameTextBox = new TextBox();
        searchNameTextBox.setName("searchUserName");
        searchNameTextBox.setAlignment(TextAlignment.LEFT);
        searchNameTextBox.setMaxLength(64);
        searchNameTextBox.setText(messages.searchUserNamePrompt());
        userSearchPanel.add(searchNameTextBox);

        searchButton = new Button(messages.searchButtonLabel());
        userSearchPanel.add(searchButton);
        searchButton.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                searchButton.setEnabled(false);
                findUsersByName(searchNameTextBox.getText());
            }
        });

        RootPanel searchResultsPanel = RootPanel.get(SEARCH_RESULTS_PANEL_ID);
        resultsFlexTable = new FlexTable();
        searchResultsPanel.add(resultsFlexTable);
        resultsFlexTable.setText(0, 0, messages.greeting());
    }

    void createUser(String name) {
        serviceFactory.getUserManagementRequestBuilder().createUser(name).fire(createResultReceiver);
    }

    Receiver<Long> createResultReceiver = new Receiver<Long>() {

        @Override
        public void onSuccess(Long newUserId) {
            createUserDialogBox.setText(messages.userCreatedMessage() + newUserId);
            createUserDialogBox.center();
        }

        @Override
        public void onFailure(ServerFailure error) {
            createUserDialogBox.setText(messages.errorInfo() + error.getMessage());
            createUserDialogBox.center();
        }
    };

    void findUsersByName(String name) {
        resultsFlexTable.removeAllRows();
        resultsFlexTable.setText(0, 0, messages.searchingInfo());
        serviceFactory.getUserManagementRequestBuilder().findByName(name).fire(userListReceiver);
    }

    Receiver<List<UserProxy>> userListReceiver = new Receiver<List<UserProxy>>() {
        @Override

        public void onSuccess(List<UserProxy> users) {
            searchButton.setEnabled(true);
            resultsFlexTable.removeAllRows();
            if (users == null || users.isEmpty()) {
                resultsFlexTable.setText(0, 0, messages.noResultsInfo());
                return;
            }
            for (UserProxy user : users) {
                resultsFlexTable.setText(resultsFlexTable.getRowCount(), 0, user.getFullName());
            }
        }

        @Override
        public void onFailure(ServerFailure error) {
            searchButton.setEnabled(true);
            resultsFlexTable.removeAllRows();
            resultsFlexTable.setText(0, 0, messages.errorInfo() + error.getMessage());
        }
    };
}