Move Eclipse E4 components from Argeo Commons to Argeo SLC

[gpl/argeo-slc.git] / swt / org.argeo.cms.e4 / src / org / argeo / cms / e4 / addons / LocaleAddon.java

diff --git a/swt/org.argeo.cms.e4/src/org/argeo/cms/e4/addons/LocaleAddon.java b/swt/org.argeo.cms.e4/src/org/argeo/cms/e4/addons/LocaleAddon.java
new file mode 100644 (file)
index 0000000..5bc0d69
--- /dev/null
+++ b/swt/org.argeo.cms.e4/src/org/argeo/cms/e4/addons/LocaleAddon.java
@@ -0,0 +1,51 @@
+package org.argeo.cms.e4.addons;
+
+import java.security.AccessController;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+
+import javax.annotation.PostConstruct;
+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, 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));
+                               }
+                       }
+               }
+       }
+}