Introduce right to left language support

[lgpl/argeo-commons.git] / org.argeo.cms.e4 / src / org / argeo / cms / e4 / handlers / LocaleAddon.java

diff --git a/org.argeo.cms.e4/src/org/argeo/cms/e4/handlers/LocaleAddon.java b/org.argeo.cms.e4/src/org/argeo/cms/e4/handlers/LocaleAddon.java
index 8582f60b3bbdefea19e2b5af9a1bd9d8492f864e..94140a614deca3156947c19212ddbfc3914026fa 100644 (file)
--- a/org.argeo.cms.e4/src/org/argeo/cms/e4/handlers/LocaleAddon.java
+++ b/org.argeo.cms.e4/src/org/argeo/cms/e4/handlers/LocaleAddon.java
@@ -1,6 +1,7 @@
 package org.argeo.cms.e4.handlers;
 
 import java.security.AccessController;
+import java.util.List;
 import java.util.Locale;
 import java.util.Set;
 
@@ -9,16 +10,42 @@ import javax.security.auth.Subject;
 
 import org.argeo.eclipse.ui.specific.UiContext;
 import org.eclipse.e4.core.services.nls.ILocaleChangeService;
+import org.eclipse.e4.ui.model.application.MApplication;
+import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
+import org.eclipse.e4.ui.workbench.modeling.EModelService;
+import org.eclipse.e4.ui.workbench.modeling.ElementMatcher;
+import org.eclipse.swt.SWT;
 
+/** Integrate workbench with the locale provided at log in. */
 public class LocaleAddon {
+       private final static String STYLE_OVERRIDE = "styleOverride";
+
+       // Right to left languages
+       private final static String ARABIC = "ar";
+       private final static String HEBREW = "he";
+
        @PostConstruct
-       public void init(ILocaleChangeService localeChangeService) {
+       public void init(ILocaleChangeService localeChangeService, EModelService modelService, MApplication application) {
                Subject subject = Subject.getSubject(AccessController.getContext());
                Set<Locale> locales = subject.getPublicCredentials(Locale.class);
                if (!locales.isEmpty()) {
                        Locale locale = locales.iterator().next();
                        localeChangeService.changeApplicationLocale(locale);
                        UiContext.setLocale(locale);
+
+                       if (locale.getLanguage().equals(ARABIC) || locale.getLanguage().equals(HEBREW)) {
+                               List<MWindow> windows = modelService.findElements(application, MWindow.class, EModelService.ANYWHERE,
+                                               new ElementMatcher(null, null, (String) null));
+                               for (MWindow window : windows) {
+                                       String currentStyle = window.getPersistedState().get(STYLE_OVERRIDE);
+                                       int style = 0;
+                                       if (currentStyle != null) {
+                                               style = Integer.parseInt(currentStyle);
+                                       }
+                                       style = style | SWT.RIGHT_TO_LEFT;
+                                       window.getPersistedState().put(STYLE_OVERRIDE, Integer.toString(style));
+                               }
+                       }
                }
        }
 }