rcp/org.argeo.eclipse.ui.rcp/src/org/argeo/eclipse/ui/specific/UiContext.java

   1 package org.argeo.eclipse.ui.specific;
   2
   3 import java.util.Locale;
   4
   5 import javax.servlet.http.HttpServletRequest;
   6 import javax.servlet.http.HttpServletResponse;
   7
   8 import org.eclipse.swt.widgets.Display;
   9
  10 /** Singleton class providing single sources infos about the UI context. */
  11 public class UiContext {
  12
  13         public static HttpServletRequest getHttpRequest() {
  14                 return null;
  15         }
  16
  17         public static HttpServletResponse getHttpResponse() {
  18                 return null;
  19         }
  20
  21         public static Locale getLocale() {
  22                 return Locale.getDefault();
  23         }
  24
  25         public static void setLocale(Locale locale) {
  26                 Locale.setDefault(locale);
  27         }
  28
  29         /** Can always be null */
  30         @SuppressWarnings("unchecked")
  31         public static <T> T getData(String key) {
  32                 Display display = getDisplay();
  33                 if (display == null)
  34                         return null;
  35                 return (T) display.getData(key);
  36         }
  37
  38         public static void setData(String key, Object value) {
  39                 Display display = getDisplay();
  40                 if (display == null)
  41                         throw new SingleSourcingException(
  42                                         "Not display available in RAP context");
  43                 display.setData(key, value);
  44         }
  45
  46         private static Display getDisplay() {
  47                 return Display.getCurrent();
  48         }
  49
  50         private UiContext() {
  51         }
  52
  53 }