com.tapas.evidence.fe.menu.MenuPresenter.java Source code

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Here is the source code for com.tapas.evidence.fe.menu.MenuPresenter.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.tapas.evidence.fe.menu;

import javax.inject.Inject;

import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import org.vaadin.mvp.eventbus.EventBus;
import org.vaadin.mvp.presenter.BasePresenter;
import org.vaadin.mvp.presenter.FactoryPresenter;
import org.vaadin.mvp.presenter.annotation.Presenter;

import com.tapas.evidence.fe.child.ChildPresenter;
import com.tapas.evidence.fe.kindergarten.KindergartenPresenter;
import com.tapas.evidence.fe.main.MainEventBus;
import com.tapas.evidence.fe.responsible.ResponsiblePersonPresenter;
import com.tapas.evidence.fe.teacher.TeacherPresenter;
import com.tapas.evidence.service.KindergartenService;
import com.vaadin.ui.Field.ValueChangeEvent;
import com.vaadin.ui.Tree;

/**
 * Presenter for left menu.
 * @author Michal Bocek
 * @since 1.0.0
 */
@Component("menuPresenter")
@Scope("prototype")
@Presenter(view = MenuView.class)
public class MenuPresenter extends FactoryPresenter<IMenuView, MainEventBus> {

    @Inject
    private KindergartenService kindergartenService;

    @Override
    public void bind() {
        final Tree tree = this.view.getTree();
        addEntry(tree, null, Boolean.FALSE, this.getMessage("menu.kindergarten", this.getLocale()),
                KindergartenPresenter.class);
        addEntry(tree, null, Boolean.FALSE, this.getMessage("menu.teacher", this.getLocale()),
                TeacherPresenter.class);
        addEntry(tree, null, Boolean.FALSE, this.getMessage("menu.responsible", this.getLocale()),
                ResponsiblePersonPresenter.class);
        addEntry(tree, null, Boolean.FALSE, this.getMessage("menu.child", this.getLocale()), ChildPresenter.class);
    }

    private MenuEntry addEntry(final Tree tree, final MenuEntry parent, final Boolean hasChildren,
            final String caption, final Class<? extends BasePresenter<?, ? extends EventBus>> presenterType) {
        final MenuEntry entry = new MenuEntry(caption, presenterType);
        tree.addItem(entry);
        tree.setParent(entry, parent);
        tree.setChildrenAllowed(entry, hasChildren);
        return entry;
    }

    /**
     * Event handler method which react on menu sellection. 
     * @param event
     */
    public void onSelectMenu(final ValueChangeEvent event) {
        // get the selected menu entry and initiate another event
        final MenuEntry menuEntry = (MenuEntry) this.view.getTree().getValue();
        if (menuEntry != null) {
            if (menuEntry.getPresenterType().equals(ChildPresenter.class)) {
                this.eventBus.openModule(ResponsiblePersonPresenter.class);
            }
            this.eventBus.openModule(menuEntry.getPresenterType());
        }
    }
}