]> git.argeo.org Git - lgpl/argeo-commons.git/blobdiff - org.argeo.cms.ui/src/org/argeo/cms/util/SimpleApp.java
Split CMS and CMS UI
[lgpl/argeo-commons.git] / org.argeo.cms.ui / src / org / argeo / cms / util / SimpleApp.java
diff --git a/org.argeo.cms.ui/src/org/argeo/cms/util/SimpleApp.java b/org.argeo.cms.ui/src/org/argeo/cms/util/SimpleApp.java
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+package org.argeo.cms.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.jcr.Repository;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+import javax.jcr.security.Privilege;
+import javax.jcr.version.VersionManager;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.cms.CmsConstants;
+import org.argeo.cms.CmsException;
+import org.argeo.cms.CmsUiProvider;
+import org.argeo.cms.LifeCycleUiProvider;
+import org.argeo.jcr.JcrUtils;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.application.Application;
+import org.eclipse.rap.rwt.application.Application.OperationMode;
+import org.eclipse.rap.rwt.application.ApplicationConfiguration;
+import org.eclipse.rap.rwt.application.EntryPoint;
+import org.eclipse.rap.rwt.application.EntryPointFactory;
+import org.eclipse.rap.rwt.application.ExceptionHandler;
+import org.eclipse.rap.rwt.client.WebClient;
+import org.eclipse.rap.rwt.client.service.JavaScriptExecutor;
+import org.eclipse.rap.rwt.service.ResourceLoader;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceRegistration;
+
+/** A basic generic app based on {@link SimpleErgonomics}. */
+public class SimpleApp implements CmsConstants, ApplicationConfiguration {
+       private final static Log log = LogFactory.getLog(SimpleApp.class);
+
+       private String contextName = null;
+
+       private Map<String, Map<String, String>> branding = new HashMap<String, Map<String, String>>();
+       private Map<String, List<String>> styleSheets = new HashMap<String, List<String>>();
+
+       private List<String> resources = new ArrayList<String>();
+
+       private BundleContext bundleContext;
+
+       private Repository repository;
+       private String workspace = null;
+       private String jcrBasePath = "/";
+       private List<String> roPrincipals = Arrays.asList("anonymous", "everyone");
+       private List<String> rwPrincipals = Arrays.asList("everyone");
+
+       private CmsUiProvider header;
+       private Map<String, CmsUiProvider> pages = new LinkedHashMap<String, CmsUiProvider>();
+
+       private Integer headerHeight = 40;
+
+       private ServiceRegistration<ApplicationConfiguration> appReg;
+
+       public void configure(Application application) {
+               try {
+                       StyleSheetResourceLoader styleSheetRL = new StyleSheetResourceLoader(
+                                       bundleContext);
+                       BundleResourceLoader bundleRL = new BundleResourceLoader(
+                                       bundleContext);
+
+                       application.setOperationMode(OperationMode.SWT_COMPATIBILITY);
+                       // application.setOperationMode(OperationMode.JEE_COMPATIBILITY);
+
+                       application.setExceptionHandler(new CmsExceptionHandler());
+
+                       // loading animated gif
+                       application.addResource(LOADING_IMAGE,
+                                       createResourceLoader(LOADING_IMAGE));
+                       // empty image
+                       application.addResource(NO_IMAGE, createResourceLoader(NO_IMAGE));
+
+                       for (String resource : resources) {
+                               application.addResource(resource, bundleRL);
+                               if (log.isTraceEnabled())
+                                       log.trace("Resource " + resource);
+                       }
+
+                       Map<String, String> defaultBranding = null;
+                       if (branding.containsKey("*"))
+                               defaultBranding = branding.get("*");
+
+                       // entry points
+                       for (String page : pages.keySet()) {
+                               Map<String, String> properties = defaultBranding != null ? new HashMap<String, String>(
+                                               defaultBranding) : new HashMap<String, String>();
+                               if (branding.containsKey(page)) {
+                                       properties.putAll(branding.get(page));
+                               }
+                               // favicon
+                               if (properties.containsKey(WebClient.FAVICON)) {
+                                       String faviconRelPath = properties.get(WebClient.FAVICON);
+                                       application.addResource(faviconRelPath,
+                                                       new BundleResourceLoader(bundleContext));
+                                       if (log.isTraceEnabled())
+                                               log.trace("Favicon " + faviconRelPath);
+
+                               }
+
+                               // page title
+                               if (!properties.containsKey(WebClient.PAGE_TITLE)) {
+                                       if (page.length() > 0)
+                                               properties.put(
+                                                               WebClient.PAGE_TITLE,
+                                                               Character.toUpperCase(page.charAt(0))
+                                                                               + page.substring(1));
+                               }
+
+                               // default body HTML
+                               if (!properties.containsKey(WebClient.BODY_HTML))
+                                       properties.put(WebClient.BODY_HTML, DEFAULT_LOADING_BODY);
+
+                               //
+                               // ADD ENTRY POINT
+                               //
+                               application.addEntryPoint("/" + page, new CmsEntryPointFactory(
+                                               pages.get(page), repository, workspace, properties),
+                                               properties);
+                               log.info("Page /" + page);
+                       }
+
+                       // stylesheets
+                       for (String themeId : styleSheets.keySet()) {
+                               List<String> cssLst = styleSheets.get(themeId);
+                               if (log.isDebugEnabled())
+                                       log.debug("Theme " + themeId);
+                               for (String css : cssLst) {
+                                       application.addStyleSheet(themeId, css, styleSheetRL);
+                                       if (log.isTraceEnabled())
+                                               log.trace(" CSS " + css);
+                               }
+
+                       }
+               } catch (RuntimeException e) {
+                       // Easier access to initialisation errors
+                       log.error("Unexpected exception when configuring RWT application.",
+                                       e);
+                       throw e;
+               }
+       }
+
+       public void init() throws RepositoryException {
+               Session session = null;
+               try {
+                       session = JcrUtils.loginOrCreateWorkspace(repository, workspace);
+                       VersionManager vm = session.getWorkspace().getVersionManager();
+                       if (!vm.isCheckedOut("/"))
+                               vm.checkout("/");
+                       JcrUtils.mkdirs(session, jcrBasePath);
+                       for (String principal : rwPrincipals)
+                               JcrUtils.addPrivilege(session, jcrBasePath, principal,
+                                               Privilege.JCR_WRITE);
+                       for (String principal : roPrincipals)
+                               JcrUtils.addPrivilege(session, jcrBasePath, principal,
+                                               Privilege.JCR_READ);
+
+                       for (String pageName : pages.keySet()) {
+                               try {
+                                       initPage(session, pages.get(pageName));
+                                       session.save();
+                               } catch (Exception e) {
+                                       throw new CmsException(
+                                                       "Cannot initialize page " + pageName, e);
+                               }
+                       }
+
+               } finally {
+                       JcrUtils.logoutQuietly(session);
+               }
+
+               // publish to OSGi
+               register();
+       }
+
+       protected void initPage(Session adminSession, CmsUiProvider page)
+                       throws RepositoryException {
+               if (page instanceof LifeCycleUiProvider)
+                       ((LifeCycleUiProvider) page).init(adminSession);
+       }
+
+       public void destroy() {
+               for (String pageName : pages.keySet()) {
+                       try {
+                               CmsUiProvider page = pages.get(pageName);
+                               if (page instanceof LifeCycleUiProvider)
+                                       ((LifeCycleUiProvider) page).destroy();
+                       } catch (Exception e) {
+                               log.error("Cannot destroy page " + pageName, e);
+                       }
+               }
+       }
+
+       protected void register() {
+               Hashtable<String, String> props = new Hashtable<String, String>();
+               if (contextName != null)
+                       props.put("contextName", contextName);
+               appReg = bundleContext.registerService(ApplicationConfiguration.class,
+                               this, props);
+               if (log.isDebugEnabled())
+                       log.debug("Registered " + (contextName == null ? "/" : contextName));
+       }
+
+       protected void unregister() {
+               appReg.unregister();
+               if (log.isDebugEnabled())
+                       log.debug("Unregistered "
+                                       + (contextName == null ? "/" : contextName));
+       }
+
+       public void setRepository(Repository repository) {
+               this.repository = repository;
+       }
+
+       public void setWorkspace(String workspace) {
+               this.workspace = workspace;
+       }
+
+       public void setHeader(CmsUiProvider header) {
+               this.header = header;
+       }
+
+       public void setPages(Map<String, CmsUiProvider> pages) {
+               this.pages = pages;
+       }
+
+       public void setJcrBasePath(String basePath) {
+               this.jcrBasePath = basePath;
+       }
+
+       public void setRoPrincipals(List<String> roPrincipals) {
+               this.roPrincipals = roPrincipals;
+       }
+
+       public void setRwPrincipals(List<String> rwPrincipals) {
+               this.rwPrincipals = rwPrincipals;
+       }
+
+       public void setHeaderHeight(Integer headerHeight) {
+               this.headerHeight = headerHeight;
+       }
+
+       public void setBranding(Map<String, Map<String, String>> branding) {
+               this.branding = branding;
+       }
+
+       public void setStyleSheets(Map<String, List<String>> styleSheets) {
+               this.styleSheets = styleSheets;
+       }
+
+       public void setBundleContext(BundleContext bundleContext) {
+               this.bundleContext = bundleContext;
+       }
+
+       public void setResources(List<String> resources) {
+               this.resources = resources;
+       }
+
+       public void setContextName(String contextName) {
+               this.contextName = contextName;
+       }
+
+       class CmsExceptionHandler implements ExceptionHandler {
+
+               @Override
+               public void handleException(Throwable throwable) {
+                       // TODO be smarter
+                       CmsUtils.getCmsView().exception(throwable);
+               }
+
+       }
+
+       private class CmsEntryPointFactory implements EntryPointFactory {
+               private final CmsUiProvider page;
+               private final Repository repository;
+               private final String workspace;
+               private final Map<String, String> properties;
+
+               public CmsEntryPointFactory(CmsUiProvider page, Repository repository,
+                               String workspace, Map<String, String> properties) {
+                       this.page = page;
+                       this.repository = repository;
+                       this.workspace = workspace;
+                       this.properties = properties;
+               }
+
+               @Override
+               public EntryPoint create() {
+                       SimpleErgonomics entryPoint = new SimpleErgonomics(repository,
+                                       workspace, jcrBasePath, page, properties) {
+
+                               @Override
+                               protected void createAdminArea(Composite parent) {
+                                       Composite adminArea = new Composite(parent, SWT.NONE);
+                                       adminArea.setLayout(new FillLayout());
+                                       Button refresh = new Button(adminArea, SWT.PUSH);
+                                       refresh.setText("Reload App");
+                                       refresh.addSelectionListener(new SelectionAdapter() {
+                                               private static final long serialVersionUID = -7671999525536351366L;
+
+                                               @Override
+                                               public void widgetSelected(SelectionEvent e) {
+                                                       long timeBeforeReload = 1000;
+                                                       RWT.getClient()
+                                                                       .getService(JavaScriptExecutor.class)
+                                                                       .execute(
+                                                                                       "setTimeout(function() { "
+                                                                                                       + "location.reload();"
+                                                                                                       + "}," + timeBeforeReload
+                                                                                                       + ");");
+                                                       reloadApp();
+                                               }
+                                       });
+                               }
+                       };
+                       // entryPoint.setState("");
+                       entryPoint.setHeader(header);
+                       entryPoint.setHeaderHeight(headerHeight);
+                       // CmsSession.current.set(entryPoint);
+                       return entryPoint;
+               }
+
+               private void reloadApp() {
+                       new Thread("Refresh app") {
+                               @Override
+                               public void run() {
+                                       unregister();
+                                       register();
+                               }
+                       }.start();
+               }
+       }
+
+       private static ResourceLoader createResourceLoader(final String resourceName) {
+               return new ResourceLoader() {
+                       public InputStream getResourceAsStream(String resourceName)
+                                       throws IOException {
+                               return getClass().getClassLoader().getResourceAsStream(
+                                               resourceName);
+                       }
+               };
+       }
+
+       // private static ResourceLoader createUrlResourceLoader(final URL url) {
+       // return new ResourceLoader() {
+       // public InputStream getResourceAsStream(String resourceName)
+       // throws IOException {
+       // return url.openStream();
+       // }
+       // };
+       // }
+
+       /*
+        * TEXTS
+        */
+       private static String DEFAULT_LOADING_BODY = "<div"
+                       + " style=\"position: absolute; left: 50%; top: 50%; margin: -32px -32px; width: 64px; height:64px\">"
+                       + "<img src=\"./rwt-resources/" + LOADING_IMAGE
+                       + "\" width=\"32\" height=\"32\" style=\"margin: 16px 16px\"/>"
+                       + "</div>";
+}