X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.cms.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fweb%2FCmsWebEntryPoint.java;fp=org.argeo.cms.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fweb%2FCmsWebEntryPoint.java;h=351f771c141285e896bc45ec5f5cd385949d9f1f;hb=ebdd232d5f7d14000c423caede5cf2b0248b234a;hp=0000000000000000000000000000000000000000;hpb=1233dcea2383bfe5c83e5ec33d0c502afff22601;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.cms.ui/src/org/argeo/cms/web/CmsWebEntryPoint.java b/org.argeo.cms.ui/src/org/argeo/cms/web/CmsWebEntryPoint.java
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index 000000000..351f771c1
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+++ b/org.argeo.cms.ui/src/org/argeo/cms/web/CmsWebEntryPoint.java
@@ -0,0 +1,237 @@
+package org.argeo.cms.web;
+
+import static org.eclipse.rap.rwt.internal.service.ContextProvider.getApplicationContext;
+
+import java.security.PrivilegedAction;
+
+import javax.security.auth.Subject;
+import javax.security.auth.login.LoginContext;
+import javax.security.auth.login.LoginException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.api.NodeConstants;
+import org.argeo.cms.auth.CurrentUser;
+import org.argeo.cms.auth.HttpRequestCallbackHandler;
+import org.argeo.cms.ui.CmsApp;
+import org.argeo.cms.ui.CmsImageManager;
+import org.argeo.cms.ui.CmsView;
+import org.argeo.cms.ui.UxContext;
+import org.argeo.cms.ui.dialogs.CmsFeedback;
+import org.argeo.cms.ui.util.CmsUiUtils;
+import org.argeo.eclipse.ui.specific.UiContext;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.application.EntryPoint;
+import org.eclipse.rap.rwt.client.service.BrowserNavigation;
+import org.eclipse.rap.rwt.client.service.BrowserNavigationEvent;
+import org.eclipse.rap.rwt.client.service.BrowserNavigationListener;
+import org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+
+/** The {@link CmsView} for a {@link CmsWebApp}. */
+public class CmsWebEntryPoint implements EntryPoint, CmsView, BrowserNavigationListener {
+	private static final long serialVersionUID = 7733510691684570402L;
+	private final static Log log = LogFactory.getLog(CmsWebEntryPoint.class);
+
+	private final CmsWebApp cmsWebApp;
+	private final String uiName;
+
+	private LoginContext loginContext;
+	private String state;
+	private Throwable exception;
+
+	private Composite ui;
+
+	// Client services
+	// private final JavaScriptExecutor jsExecutor;
+	private final BrowserNavigation browserNavigation;
+
+	/** Experimental OS-like multi windows. */
+	private boolean multipleShells = false;
+
+	public CmsWebEntryPoint(CmsWebApp cmsWebApp, String uiName) {
+		assert cmsWebApp != null;
+		assert uiName != null;
+		this.cmsWebApp = cmsWebApp;
+		this.uiName = uiName;
+
+		// Initial login
+		LoginContext lc;
+		try {
+			lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER,
+					new HttpRequestCallbackHandler(UiContext.getHttpRequest(), UiContext.getHttpResponse()));
+			lc.login();
+		} catch (LoginException e) {
+			try {
+				lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_ANONYMOUS);
+				lc.login();
+			} catch (LoginException e1) {
+				throw new IllegalStateException("Cannot log in as anonymous", e1);
+			}
+		}
+		authChange(lc);
+
+		// jsExecutor = RWT.getClient().getService(JavaScriptExecutor.class);
+		browserNavigation = RWT.getClient().getService(BrowserNavigation.class);
+		if (browserNavigation != null)
+			browserNavigation.addBrowserNavigationListener(this);
+	}
+
+	protected void createContents(Composite parent) {
+		Subject.doAs(loginContext.getSubject(), new PrivilegedAction<Void>() {
+			@Override
+			public Void run() {
+				try {
+					ui = cmsWebApp.getCmsApp().initUi(parent);
+					ui.setData(CmsApp.UI_NAME_PROPERTY, uiName);
+					ui.setLayoutData(CmsUiUtils.fillAll());
+				} catch (Exception e) {
+					throw new IllegalStateException("Cannot create entrypoint contents", e);
+				}
+				return null;
+			}
+		});
+	}
+
+	protected Subject getSubject() {
+		return loginContext.getSubject();
+	}
+
+	@Override
+	public boolean isAnonymous() {
+		return CurrentUser.isAnonymous(getSubject());
+	}
+
+	@Override
+	public synchronized void logout() {
+		if (loginContext == null)
+			throw new IllegalArgumentException("Login context should not be null");
+		try {
+			CurrentUser.logoutCmsSession(loginContext.getSubject());
+			loginContext.logout();
+			LoginContext anonymousLc = new LoginContext(NodeConstants.LOGIN_CONTEXT_ANONYMOUS);
+			anonymousLc.login();
+			authChange(anonymousLc);
+		} catch (LoginException e) {
+			log.error("Cannot logout", e);
+		}
+	}
+
+	@Override
+	public synchronized void authChange(LoginContext lc) {
+		if (lc == null)
+			throw new IllegalArgumentException("Login context cannot be null");
+		// logout previous login context
+		if (this.loginContext != null)
+			try {
+				this.loginContext.logout();
+			} catch (LoginException e1) {
+				log.warn("Could not log out: " + e1);
+			}
+		this.loginContext = lc;
+		doRefresh();
+	}
+
+	@Override
+	public void exception(final Throwable e) {
+		exception = e;
+		log.error("Unexpected exception in CMS", e);
+		doRefresh();
+	}
+
+	protected synchronized void doRefresh() {
+		if (ui != null)
+			Subject.doAs(getSubject(), new PrivilegedAction<Void>() {
+				@Override
+				public Void run() {
+					if (exception != null) {
+						// TODO internationalise
+						CmsFeedback.show("Unexpected exception", exception);
+						exception = null;
+						// TODO report
+					}
+					cmsWebApp.getCmsApp().refreshUi(ui, state);
+					return null;
+				}
+			});
+	}
+
+	/** Sets the state of the entry point and retrieve the related JCR node. */
+	protected String setState(String newState) {
+		cmsWebApp.getCmsApp().setState(ui, newState);
+		state = newState;
+		return null;
+	}
+
+	@Override
+	public UxContext getUxContext() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public void navigateTo(String state) {
+		exception = null;
+		String title = setState(state);
+		doRefresh();
+		if (browserNavigation != null)
+			browserNavigation.pushState(state, title);
+	}
+
+	@Override
+	public CmsImageManager getImageManager() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public void navigated(BrowserNavigationEvent event) {
+		setState(event.getState());
+		doRefresh();
+	}
+
+	/*
+	 * EntryPoint IMPLEMENTATION
+	 */
+
+	@Override
+	public int createUI() {
+		Display display = new Display();
+		Shell shell = createShell(display);
+		shell.setLayout(CmsUiUtils.noSpaceGridLayout());
+		CmsView.registerCmsView(shell, this);
+		createContents(shell);
+		shell.layout();
+//		if (shell.getMaximized()) {
+//			shell.layout();
+//		} else {
+////			shell.pack();
+//		}
+		shell.open();
+		if (getApplicationContext().getLifeCycleFactory().getLifeCycle() instanceof RWTLifeCycle) {
+			while (!shell.isDisposed()) {
+				if (!display.readAndDispatch()) {
+					display.sleep();
+				}
+			}
+			display.dispose();
+		}
+		return 0;
+	}
+
+	protected Shell createShell(Display display) {
+		Shell shell;
+		if (!multipleShells) {
+			shell = new Shell(display, SWT.NO_TRIM);
+			shell.setMaximized(true);
+		} else {
+			shell = new Shell(display, SWT.SHELL_TRIM);
+			shell.setSize(800, 600);
+		}
+		return shell;
+	}
+
+}