org.argeo.cms.e4/src/org/argeo/cms/e4/addons/LocaleAddon.java

   1 package org.argeo.cms.e4.addons;
   2
   3 import java.security.AccessController;
   4 import java.util.List;
   5 import java.util.Locale;
   6 import java.util.Set;
   7
   8 import javax.annotation.PostConstruct;
   9 import javax.security.auth.Subject;
  10
  11 import org.argeo.eclipse.ui.specific.UiContext;
  12 import org.eclipse.e4.core.services.nls.ILocaleChangeService;
  13 import org.eclipse.e4.ui.model.application.MApplication;
  14 import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
  15 import org.eclipse.e4.ui.workbench.modeling.EModelService;
  16 import org.eclipse.e4.ui.workbench.modeling.ElementMatcher;
  17 import org.eclipse.swt.SWT;
  18
  19 /** Integrate workbench with the locale provided at log in. */
  20 public class LocaleAddon {
  21         private final static String STYLE_OVERRIDE = "styleOverride";
  22
  23         // Right to left languages
  24         private final static String ARABIC = "ar";
  25         private final static String HEBREW = "he";
  26
  27         @PostConstruct
  28         public void init(ILocaleChangeService localeChangeService, EModelService modelService, MApplication application) {
  29                 Subject subject = Subject.getSubject(AccessController.getContext());
  30                 Set<Locale> locales = subject.getPublicCredentials(Locale.class);
  31                 if (!locales.isEmpty()) {
  32                         Locale locale = locales.iterator().next();
  33                         localeChangeService.changeApplicationLocale(locale);
  34                         UiContext.setLocale(locale);
  35
  36                         if (locale.getLanguage().equals(ARABIC) || locale.getLanguage().equals(HEBREW)) {
  37                                 List<MWindow> windows = modelService.findElements(application, MWindow.class, EModelService.ANYWHERE,
  38                                                 new ElementMatcher(null, null, (String) null));
  39                                 for (MWindow window : windows) {
  40                                         String currentStyle = window.getPersistedState().get(STYLE_OVERRIDE);
  41                                         int style = 0;
  42                                         if (currentStyle != null) {
  43                                                 style = Integer.parseInt(currentStyle);
  44                                         }
  45                                         style = style | SWT.RIGHT_TO_LEFT;
  46                                         window.getPersistedState().put(STYLE_OVERRIDE, Integer.toString(style));
  47                                 }
  48                         }
  49                 }
  50         }
  51 }