001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2009 SonarSource SA
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 com.google.gwt.i18n.client.NumberFormat;
023    import com.google.gwt.user.client.DOM;
024    import com.google.gwt.user.client.Element;
025    
026    public final class Utils {
027    
028      private Utils() {
029        // only static methods
030      }
031    
032      /**
033       * @return width in pixels of the GWT component in the Sonar page
034       */
035      public static int getPageWidth() {
036        return DOM.getElementById("gwtpage").getClientWidth();
037      }
038      
039      public static String escapeHtml(String maybeHtml) {
040        final Element div = DOM.createDiv();
041        DOM.setInnerText(div, maybeHtml);
042        return DOM.getInnerHTML(div);
043      }
044    
045      public static String formatPercent(String percentage) {
046        return percentage == null || percentage.equals("") ? "" : formatPercent(new Double(percentage));
047      }
048    
049      public static String formatPercent(double percentage) {
050        return NumberFormat.getFormat("0.0").format(percentage) + "%";
051      }
052    
053      public static String formatNumber(String number) {
054        return number == null || number.equals("") ? "" : formatNumber(new Double(number));
055      }
056    
057      public static String formatNumber(double number) {
058        return NumberFormat.getDecimalFormat().format(number);
059      }
060    
061      public static native void showError(String message) /*-{
062        $wnd.error(message);
063      }-*/;
064    
065      public static native void showWarning(String message) /*-{
066        $wnd.warning(message);
067      }-*/;
068    
069      public static native void showInfo(String message) /*-{
070        $wnd.info(message);
071      }-*/;
072    }