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     */
020    package org.sonar.gwt;
021    
022    import java.util.Date;
023    
024    import com.google.gwt.i18n.client.DateTimeFormat;
025    
026    import com.google.gwt.i18n.client.NumberFormat;
027    import com.google.gwt.user.client.DOM;
028    import com.google.gwt.user.client.Element;
029    
030    public 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    }