Improve CMS View.

[lgpl/argeo-commons.git] / org.argeo.cms.ui / src / org / argeo / cms / ui / CmsView.java

diff --git a/org.argeo.cms.ui/src/org/argeo/cms/ui/CmsView.java b/org.argeo.cms.ui/src/org/argeo/cms/ui/CmsView.java
index ce0acb89fd2b68c0c2c249b6f9df362310d0483c..e18d4b4330d3098a6c8178fa71f1cda29382497b 100644 (file)
--- a/org.argeo.cms.ui/src/org/argeo/cms/ui/CmsView.java
+++ b/org.argeo.cms.ui/src/org/argeo/cms/ui/CmsView.java
@@ -1,13 +1,21 @@
 package org.argeo.cms.ui;
 
+import java.security.PrivilegedAction;
+import java.util.HashMap;
+import java.util.Map;
+
 import javax.security.auth.login.LoginContext;
 
-import org.eclipse.swt.widgets.Composite;
+import org.argeo.cms.auth.CmsSession;
+import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Shell;
 
 /** Provides interaction with the CMS system. */
 public interface CmsView {
-       //String KEY = "org.argeo.cms.ui.view";
+       final static String CMS_VIEW_UID_PROPERTY = "argeo.cms.view.uid";
+       // String KEY = "org.argeo.cms.ui.view";
+
+       String getUid();
 
        UxContext getUxContext();
 
@@ -28,7 +36,52 @@ public interface CmsView {
 
        boolean isAnonymous();
 
-       static CmsView getCmsView(Composite parent) {
+       /**
+        * Send an event to this topic. Does noothing by default., but if implemented it
+        * MUST set the {@link #CMS_VIEW_UID_PROPERTY} in the properties.
+        */
+       default void sendEvent(String topic, Map<String, Object> properties) {
+
+       }
+
+       /**
+        * Convenience methods for when {@link #sendEvent(String, Map)} only requires
+        * one single parameter.
+        */
+       default void sendEvent(String topic, String param, Object value) {
+               Map<String, Object> properties = new HashMap<>();
+               properties.put(param, value);
+               sendEvent(topic, properties);
+       }
+
+       default void applyStyles(Object widget) {
+
+       }
+
+       default <T> T doAs(PrivilegedAction<T> action) {
+               throw new UnsupportedOperationException();
+       }
+
+       default Void runAs(Runnable runnable) {
+               return doAs(new PrivilegedAction<Void>() {
+
+                       @Override
+                       public Void run() {
+                               if (runnable != null)
+                                       runnable.run();
+                               return null;
+                       }
+               });
+       }
+
+       default void stateChanged(String state, String title) {
+       }
+
+       default CmsSession getCmsSession() {
+               throw new UnsupportedOperationException();
+       }
+
+       static CmsView getCmsView(Control parent) {
                // find parent shell
                Shell topShell = parent.getShell();
                while (topShell.getParent() != null)
@@ -44,8 +97,7 @@ public interface CmsView {
                // check if already set
                if (topShell.getData(CmsView.class.getName()) != null) {
                        CmsView registeredView = (CmsView) topShell.getData(CmsView.class.getName());
-                       throw new IllegalArgumentException(
-                                       "Cms view " + registeredView + " already registered in this shell");
+                       throw new IllegalArgumentException("Cms view " + registeredView + " already registered in this shell");
                }
                shell.setData(CmsView.class.getName(), view);
        }