org.sigmah.client.ui.view.project.dashboard.RemindersLabelCellRenderer.java Source code

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Here is the source code for org.sigmah.client.ui.view.project.dashboard.RemindersLabelCellRenderer.java

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package org.sigmah.client.ui.view.project.dashboard;

/*
 * #%L
 * Sigmah
 * %%
 * Copyright (C) 2010 - 2016 URD
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import org.sigmah.shared.dto.base.EntityDTO;
import org.sigmah.shared.dto.reminder.MonitoredPointDTO;
import org.sigmah.shared.dto.reminder.ReminderDTO;

import com.extjs.gxt.ui.client.data.ModelData;
import com.extjs.gxt.ui.client.store.ListStore;
import com.extjs.gxt.ui.client.widget.grid.ColumnData;
import com.extjs.gxt.ui.client.widget.grid.Grid;
import com.extjs.gxt.ui.client.widget.grid.GridCellRenderer;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;

/**
 * A cell renderer for label column in a Reminder/MonitoredPoint grid.
 * 
 * @author HUZHE
 * @author Denis Colliot (dcolliot@ideia.fr)
 */
final class RemindersLabelCellRenderer<D extends EntityDTO<?> & ModelData> implements GridCellRenderer<D> {

    private static final String STYLE_POINTS_COMPLETED = "points-completed";
    private static final String STYLE_HYPERLINK_LABEL = "hyperlink-label";

    private final ProjectDashboardView view;

    public RemindersLabelCellRenderer(final ProjectDashboardView view) {
        this.view = view;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object render(final D model, final String property, final ColumnData config, final int rowIndex,
            final int colIndex, final ListStore<D> store, final Grid<D> grid) {

        if (!view.getPresenterHandler().isAuthorizedToEditReminder()) {
            return null;
        }

        final String entityLabel;
        final boolean entityCompleted;

        if (model instanceof ReminderDTO) {
            final ReminderDTO reminder = (ReminderDTO) model;
            entityLabel = reminder.getLabel();
            entityCompleted = reminder.isCompleted();

        } else if (model instanceof MonitoredPointDTO) {
            final MonitoredPointDTO monitoredPoint = (MonitoredPointDTO) model;
            entityLabel = monitoredPoint.getLabel();
            entityCompleted = monitoredPoint.isCompleted();

        } else {
            throw new UnsupportedOperationException(
                    "Only types 'ReminderDTO' and 'MonitoredPointDTO' are supported.");
        }

        // Create a label with a hyperlink style.
        com.google.gwt.user.client.ui.Label label = new com.google.gwt.user.client.ui.Label(entityLabel);

        if (entityCompleted) {
            // When the monitored point is completed, change the label style.
            label.addStyleName(STYLE_POINTS_COMPLETED);
        }

        if (view.getPresenterHandler().isAuthor(model)) {
            label.addStyleName(STYLE_HYPERLINK_LABEL);

        } else {
            return label;
        }

        // Add a click handler to response a click event.
        label.addClickHandler(new ClickHandler() {

            @Override
            public void onClick(final ClickEvent event) {

                view.getPresenterHandler().onLabelClickEvent(model);

            }
        });

        return label;
    }
}