de.decidr.ui.view.WorkItemComponent.java Source code

Introduction

Here is the source code for de.decidr.ui.view.WorkItemComponent.java

Source

/*
 * The DecidR Development Team 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 de.decidr.ui.view;

import com.vaadin.data.Property;
import com.vaadin.data.Property.ValueChangeEvent;
import com.vaadin.ui.Label;
import com.vaadin.ui.NativeSelect;

import de.decidr.model.annotations.Reviewed;
import de.decidr.model.annotations.Reviewed.State;
import de.decidr.model.exceptions.TransactionException;
import de.decidr.ui.controller.MarkWorkItemAsDoneAction;
import de.decidr.ui.controller.show.ShowWorkItemWindowAction;
import de.decidr.ui.data.WorkItemContainer;
import de.decidr.ui.main.DecidrUI;
import de.decidr.ui.main.ModelFacades;
import de.decidr.ui.view.tables.WorkItemTable;

/**
 * This component represents the work items in a table. The user can choose if
 * he wants to see the work items of all tenants or just from the current
 * tenant.
 * 
 * @author AT
 */
@Reviewed(reviewers = { "TK", "JS" }, lastRevision = "0", currentReviewState = State.NeedsReview)
public class WorkItemComponent extends AbstractListComponent {

    private static final long serialVersionUID = -2110748321898265548L;

    private WorkItemContainer workItemContainer = null;

    private Label showWorkItemLabel = null;

    private WorkItemContainer filteredWorkItemContainer;

    private NativeSelect filterSelect;

    private WorkItemTable filteredWorkItemsTable;

    private WorkItemTable allWorkItemsTable;

    private static final String[] FILTERS = new String[] { "Current Tenant", "All Tenants" };

    /**
     * Default constructor.
     * 
     */
    public WorkItemComponent() {
        super();
        init();
    }

    /**
     * Returns the work item table.
     * 
     * @return workItemTable
     */
    public WorkItemTable getWorkItemTable() {
        return (WorkItemTable) contentTable;
    }

    protected boolean isMemberOfMultipleTenants() {
        try {
            return (ModelFacades.getUserFacade()
                    .getJoinedTenants(DecidrUI.getCurrent().getCurrentUser().getActorId()).size() > 1);
        } catch (TransactionException e) {
            return false;
        }
    }

    /**
     * Set up the select box for showing all workitems or only those of the current tenant.
     */
    protected void initFilterSelect() {
        showWorkItemLabel = new Label("Show Work Items from: ");
        filterSelect = new NativeSelect("");
        for (String item : FILTERS) {
            filterSelect.addItem(item);
        }
        filterSelect.setNullSelectionAllowed(false);
        filterSelect.select(FILTERS[0]);
        filterSelect.setImmediate(true);
        filterSelect.addListener(new Property.ValueChangeListener() {
            private static final long serialVersionUID = 1L;

            @Override
            public void valueChange(ValueChangeEvent event) {
                if (filterSelect.getValue() == FILTERS[0]) {
                    replaceContentTable(filteredWorkItemsTable);
                } else {
                    replaceContentTable(allWorkItemsTable);
                }
            }
        });
        searchPanel.getSearchHorizontalLayout().addComponent(showWorkItemLabel);
        searchPanel.getSearchHorizontalLayout().addComponent(filterSelect);
    }

    /**
     * This method initializes the components of the work item component.
     * 
     */
    protected void init() {

        workItemContainer = new WorkItemContainer();
        filteredWorkItemContainer = new WorkItemContainer(true);

        label = new Label("<h2>My Work Items</h2>");
        label.setContentMode(Label.CONTENT_XHTML);
        allWorkItemsTable = new WorkItemTable(workItemContainer);
        filteredWorkItemsTable = new WorkItemTable(filteredWorkItemContainer);

        contentTable = filteredWorkItemsTable;

        addButton("Edit Work Item", new ShowWorkItemWindowAction(contentTable), ButtonPolicy.ONE_SELECTED, true);

        addButton("Mark as done", new MarkWorkItemAsDoneAction(contentTable));

        super.init();

        if (isMemberOfMultipleTenants()) {
            initFilterSelect();
        }
    }

}