com.google.gwt.sample.mobilewebapp.client.mobile.TaskProxyCell.java Source code

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Here is the source code for com.google.gwt.sample.mobilewebapp.client.mobile.TaskProxyCell.java

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/*
 * Copyright 2011 Google Inc.
 * 
 * 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 com.google.gwt.sample.mobilewebapp.client.mobile;

import com.google.gwt.cell.client.AbstractCell;
import com.google.gwt.core.client.GWT;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;
import com.google.gwt.safehtml.client.SafeHtmlTemplates;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.sample.mobilewebapp.shared.TaskProxy;

import java.util.Date;

/**
 * A {@link com.google.gwt.cell.client.Cell} used to render a {@link TaskProxy}.
 */
class TaskProxyCell extends AbstractCell<TaskProxy> {

    /**
     * The template used by this cell.
     * 
     */
    interface Template extends SafeHtmlTemplates {
        @SafeHtmlTemplates.Template("{0}<div style=\"font-size:80%;\">&nbsp;</div>")
        SafeHtml noDate(SafeHtml name);

        @SafeHtmlTemplates.Template("{0}<div style=\"font-size:80%;color:#999;\">Due: {1}</div>")
        SafeHtml onTime(SafeHtml name, String date);

        @SafeHtmlTemplates.Template("{0}<div style=\"font-size:80%;color:red;\">Due: {1}</div>")
        SafeHtml pastDue(SafeHtml name, String date);
    }

    private static Template template;
    private final DateTimeFormat dateFormat = DateTimeFormat.getFormat(PredefinedFormat.DATE_LONG);

    public TaskProxyCell() {
        if (template == null) {
            template = GWT.create(Template.class);
        }
    }

    @Override
    @SuppressWarnings("deprecation")
    public void render(com.google.gwt.cell.client.Cell.Context context, TaskProxy value, SafeHtmlBuilder sb) {
        if (value == null) {
            return;
        }

        SafeHtml name;
        if (value.getName() == null) {
            name = SafeHtmlUtils.fromSafeConstant("<i>Unnamed</i>");
        } else {
            name = SafeHtmlUtils.fromString(value.getName());
        }

        Date date = value.getDueDate();
        Date today = new Date();
        today.setHours(0);
        today.setMinutes(0);
        today.setSeconds(0);
        if (date == null) {
            sb.append(template.noDate(name));
        } else if (date.before(today)) {
            sb.append(template.pastDue(name, dateFormat.format(date)));
        } else {
            sb.append(template.onTime(name, dateFormat.format(date)));
        }
    }
}