org.openeos.services.ui.vaadin.internal.VaadinMenuContributor.java Source code

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Here is the source code for org.openeos.services.ui.vaadin.internal.VaadinMenuContributor.java

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/**
 * Copyright 2014 Fernando Rincon Martin <frm.rincon@gmail.com>
 *
 * 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 org.openeos.services.ui.vaadin.internal;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.openeos.services.ui.CustomActionManagerService;
import org.openeos.services.ui.WindowManagerService;
import org.openeos.services.ui.action.CustomAction;
import org.openeos.services.ui.menu.MenuContributor;
import org.openeos.services.ui.model.IMenuDefinition;
import org.openeos.services.ui.model.IWindowDefinition;
import org.openeos.services.ui.vaadin.IVaadinERPWindowFactory;
import org.openeos.vaadin.main.IUnoVaadinApplication;
import org.openeos.vaadin.main.IVaadinMenuContributor;
import com.vaadin.ui.MenuBar;
import com.vaadin.ui.MenuBar.Command;
import com.vaadin.ui.MenuBar.MenuItem;

public class VaadinMenuContributor implements IVaadinMenuContributor {

    private static final Logger LOG = LoggerFactory.getLogger(VaadinMenuContributor.class);

    //TODO Need to unbind

    private WindowManagerService windowManagerService;
    private CustomActionManagerService customActionManagerService;
    private IVaadinERPWindowFactory windowFactory;
    private UIVaadinApplicationFactory applicationFactory;

    private List<MenuContributor> menuList = new ArrayList<MenuContributor>();

    public VaadinMenuContributor(WindowManagerService windowManagerService,
            CustomActionManagerService customActionManagerService, IVaadinERPWindowFactory windowFactory,
            UIVaadinApplicationFactory applicationFactory) {
        this.windowManagerService = windowManagerService;
        this.customActionManagerService = customActionManagerService;
        this.windowFactory = windowFactory;
        this.applicationFactory = applicationFactory;
    }

    @Override
    public void contribute(MenuBar menuBar, IUnoVaadinApplication application) {
        Collections.sort(menuList, new Comparator<MenuContributor>() {
            @Override
            public int compare(MenuContributor o1, MenuContributor o2) {
                return new Integer(o1.getOrder()).compareTo(o2.getOrder());
            }
        });

        for (MenuContributor contributor : menuList) {
            for (IMenuDefinition menu : contributor.getRootMenuDefinitionList()) {
                MenuItem menuItem = menuBar.addItem(menu.getName(), createAction(menu, application));
                addRecursiveMenus(contributor, contributor.getChildMenuDefinitionList(menu), menuItem, application);
            }
        }
    }

    private Command createAction(IMenuDefinition menu, IUnoVaadinApplication application) {
        switch (menu.getType()) {
        case MENU:
        case SEPARATOR:
            return null;
        case WINDOW:
            return createWindowAction(menu, application);
        case CUSTOM:
            return createCustomAction(menu, application);
        }
        return null;
    }

    private Command createWindowAction(IMenuDefinition menu, IUnoVaadinApplication application) {
        IWindowDefinition window = windowManagerService.getWindowDefinition(menu.getWindowId());
        if (window == null) {
            LOG.warn("Window not found: '{}'", menu.getWindowId());
            return null;
        } else {
            // TODO Make with service factory or prototype bean blueprint
            return new OpenWindowCommand(window, applicationFactory.createApplication(application), windowFactory);
        }
    }

    private Command createCustomAction(IMenuDefinition menu, IUnoVaadinApplication application) {
        CustomAction customAction = customActionManagerService.getCustomAction(menu.getCustomActionId());
        if (customAction == null) {
            LOG.warn("Custom action not found: '{}'", menu.getCustomActionId());
            return null;
        } else {
            return new CustomActionCommand(customAction, applicationFactory.createApplication(application));
        }
    }

    private void addRecursiveMenus(MenuContributor contributor, List<? extends IMenuDefinition> subMenuList,
            MenuItem parent, IUnoVaadinApplication application) {
        if (subMenuList == null)
            return;
        for (IMenuDefinition subMenu : subMenuList) {
            MenuItem child = parent.addItem(subMenu.getName(), createAction(subMenu, application));
            addRecursiveMenus(contributor, contributor.getChildMenuDefinitionList(subMenu), child, application);
        }
    }

    public void bindMenuContributor(MenuContributor menuContributor) {
        menuList.add(menuContributor);
    }

    public void unbindMenuContributor(MenuContributor menuContributor) {
        if (menuContributor != null) {
            menuList.remove(menuContributor);
        }
    }
}