001/*
002 * Sonar, open source software quality management tool.
003 * Copyright (C) 2008-2012 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * Sonar is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * Sonar is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with Sonar; if not, write to the Free Software
018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019 */
020package org.sonar.gwt;
021
022import java.util.Date;
023
024import com.google.gwt.i18n.client.DateTimeFormat;
025
026import com.google.gwt.i18n.client.NumberFormat;
027import com.google.gwt.user.client.DOM;
028import com.google.gwt.user.client.Element;
029
030public final class Utils {
031
032  private Utils() {
033    // only static methods
034  }
035
036  /**
037   * @return width in pixels of the GWT component in the Sonar page
038   */
039  public static int getPageWidth() {
040    return DOM.getElementById("gwtpage").getClientWidth();
041  }
042  
043  public static String escapeHtml(String maybeHtml) {
044    final Element div = DOM.createDiv();
045    DOM.setInnerText(div, maybeHtml);
046    return DOM.getInnerHTML(div);
047  }
048
049  public static String formatPercent(String percentage) {
050    return percentage == null || percentage.equals("") ? "" : formatPercent(new Double(percentage));
051  }
052
053  public static String formatPercent(double percentage) {
054    return NumberFormat.getFormat("0.0").format(percentage) + "%";
055  }
056
057  public static String formatNumber(String number) {
058    return number == null || number.equals("") ? "" : formatNumber(new Double(number));
059  }
060
061  public static String formatNumber(double number) {
062    return NumberFormat.getDecimalFormat().format(number);
063  }
064  
065  /**
066   * @since 2.5
067   */
068  public static String formatDate(Date date) {
069    return date == null ? "" : DateTimeFormat.getShortDateFormat().format(date);
070  }
071
072  public static native void showError(String message) /*-{
073    $wnd.error(message);
074  }-*/;
075
076  public static native void showWarning(String message) /*-{
077    $wnd.warning(message);
078  }-*/;
079
080  public static native void showInfo(String message) /*-{
081    $wnd.info(message);
082  }-*/;
083}