X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.cms.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2FCmsView.java;h=f8ab3a6821cf09860bdb052e6b118c377d3053ed;hb=11c9710b1d2456c8304a5841d775af008a794431;hp=6d70935d7e4a0ffd9d8205cac0404dc97fdbf2ff;hpb=088c1b517a543e935d8ab65c3b2fd2d0269b551d;p=lgpl%2Fargeo-commons.git

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 6d70935d7..f8ab3a682 100644
--- a/org.argeo.cms.ui/src/org/argeo/cms/ui/CmsView.java
+++ b/org.argeo.cms.ui/src/org/argeo/cms/ui/CmsView.java
@@ -1,10 +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.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();
 
@@ -24,4 +35,88 @@ public interface CmsView {
 	CmsImageManager getImageManager();
 
 	boolean isAnonymous();
+
+	/**
+	 * Send an event to this topic. Does nothing 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();
+	}
+
+	default Object getData(String key) {
+		throw new UnsupportedOperationException();
+	}
+
+	@SuppressWarnings("unchecked")
+	default <T> T getUiContext(Class<T> clss) {
+		return (T) getData(clss.getName());
+	}
+
+	default <T> void setUiContext(Class<T> clss, T instance) {
+		setData(clss.getName(), instance);
+	}
+
+	default void setData(String key, Object value) {
+		throw new UnsupportedOperationException();
+	}
+
+	static CmsView getCmsView(Control parent) {
+		// find parent shell
+		Shell topShell = parent.getShell();
+		while (topShell.getParent() != null)
+			topShell = (Shell) topShell.getParent();
+		return (CmsView) topShell.getData(CmsView.class.getName());
+	}
+
+	static void registerCmsView(Shell shell, CmsView view) {
+		// find parent shell
+		Shell topShell = shell;
+		while (topShell.getParent() != null)
+			topShell = (Shell) topShell.getParent();
+		// 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");
+		}
+		shell.setData(CmsView.class.getName(), view);
+	}
+
 }