[portal-commits] JBoss Portal SVN: r9594 - in branches/presentation/presentation/src/main/org/jboss/portal/presentation: client and 3 other directories.

Author: sohil.shah(a)jboss.com Date: 2008-01-23 23:51:25 -0500 (Wed, 23 Jan 2008) New Revision: 9594 Added: branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/SessionConstants.java branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/model/AjaxModelListener.java Modified: branches/presentation/presentation/src/main/org/jboss/portal/presentation/ajax/client/model/AjaxUIContext.java branches/presentation/presentation/src/main/org/jboss/portal/presentation/ajax/client/model/AjaxUIObject.java branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/PresentationContext.java branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/controller/AjaxUIController.java branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/controller/UIController.java branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/PresentationContextImpl.java Log: Ajax User Agent - first pass at the server side component of the agent based on ModelListener approach Modified: branches/presentation/presentation/src/main/org/jboss/portal/presentation/ajax/client/model/AjaxUIContext.java =================================================================== --- branches/presentation/presentation/src/main/org/jboss/portal/presentation/ajax/client/model/AjaxUIContext.java 2008-01-23 23:43:05 UTC (rev 9593) +++ branches/presentation/presentation/src/main/org/jboss/portal/presentation/ajax/client/model/AjaxUIContext.java 2008-01-24 04:51:25 UTC (rev 9594) @@ -45,10 +45,11 @@ { AjaxUIObject object = null; + //Perform a direct quick lookup if(this.objectTree.containsKey(id)) { object = (AjaxUIObject)this.objectTree.get(id); - } + } return object; } Modified: branches/presentation/presentation/src/main/org/jboss/portal/presentation/ajax/client/model/AjaxUIObject.java =================================================================== --- branches/presentation/presentation/src/main/org/jboss/portal/presentation/ajax/client/model/AjaxUIObject.java 2008-01-23 23:43:05 UTC (rev 9593) +++ branches/presentation/presentation/src/main/org/jboss/portal/presentation/ajax/client/model/AjaxUIObject.java 2008-01-24 04:51:25 UTC (rev 9594) @@ -23,6 +23,7 @@ package org.jboss.portal.presentation.ajax.client.model; import java.util.List; +import java.util.ArrayList; import com.google.gwt.user.client.rpc.IsSerializable; @@ -108,6 +109,10 @@ */ public List getChildren() { + if(this.children == null) + { + this.children = new ArrayList(); + } return this.children; } @@ -116,7 +121,7 @@ * @param name * @return */ - public AjaxUIObject getChild(String name) + public AjaxUIObject getChild(String id) { AjaxUIObject child = null; @@ -125,7 +130,7 @@ for(int i=0; i<this.children.size(); i++) { AjaxUIObject cour = (AjaxUIObject)this.children.get(i); - if(cour.getName().equals(name)) + if(cour.id.equals(id)) { child = cour; break; @@ -135,6 +140,40 @@ return child; } + + /** + * + * @param children + */ + public void setChildren(List children) + { + this.children = children; + } + + /** + * + * @param child + */ + /*public void addChild(AjaxUIObject child) + { + AjaxUIObject find = null; + for(int i=0; i<this.getChildren().size(); i++) + { + AjaxUIObject cour = (AjaxUIObject)this.getChildren().get(i); + if(cour.id.equals(child.id)) + { + find = cour; + } + } + + if(find != null) + { + this.getChildren().remove(find); + } + + this.getChildren().add(child); + }*/ + public AjaxUIContext getContext() { @@ -146,15 +185,6 @@ this.context = context; } - /** - * - * @param children - */ - public void setChildren(List children) - { - this.children = children; - } - public void setId(String id) { this.id = id; @@ -168,5 +198,5 @@ public void setStatus(int status) { this.status = status; - } + } } Modified: branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/PresentationContext.java =================================================================== --- branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/PresentationContext.java 2008-01-23 23:43:05 UTC (rev 9593) +++ branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/PresentationContext.java 2008-01-24 04:51:25 UTC (rev 9594) @@ -23,6 +23,7 @@ package org.jboss.portal.presentation.client; import org.jboss.portal.presentation.protocol.ServerAction; +import org.jboss.portal.presentation.ajax.client.model.AjaxUIContext; import org.jboss.portal.presentation.model.UIContext; import org.jboss.portal.server.ServerInvocation; import org.jboss.portal.web.ServletContextDispatcher; @@ -51,6 +52,13 @@ * @return the ui context */ UIContext getUIContext(); + + /** + * Provide the root UI context for the server side cache of the Ajax User Agent + * + * @return + */ + public AjaxUIContext getAjaxUIContext(); /** * Returns the servlet context dispatcher. Modified: branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/controller/AjaxUIController.java =================================================================== --- branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/controller/AjaxUIController.java 2008-01-23 23:43:05 UTC (rev 9593) +++ branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/controller/AjaxUIController.java 2008-01-24 04:51:25 UTC (rev 9594) @@ -28,8 +28,6 @@ import org.jboss.portal.presentation.model.UIPage; import org.jboss.portal.presentation.model.UIWindow; import org.jboss.portal.presentation.model.content.WindowContent; -import org.jboss.portal.presentation.protocol.GetActivation; -import org.jboss.portal.presentation.protocol.PostActivation; import org.jboss.portal.presentation.protocol.ServerAction; import org.jboss.portal.presentation.protocol.ServerResponse; import org.jboss.portal.presentation.protocol.ShowUIObjectResponse; @@ -37,17 +35,15 @@ import org.jboss.portal.presentation.server.PresentationServer; import org.jboss.portal.presentation.server.ProcessorRequest; import org.jboss.portal.presentation.server.ProcessorResponse; +import org.jboss.portal.presentation.ajax.client.model.AjaxUIContext; +import org.jboss.portal.presentation.ajax.client.model.AjaxUIPage; +import org.jboss.portal.presentation.ajax.client.model.AjaxUIWindow; import org.jboss.portal.server.RequestController; import org.jboss.portal.server.ServerException; import org.jboss.portal.server.ServerInvocation; -import org.jboss.portal.server.ServerInvocationContext; -import org.jboss.portal.server.impl.ServerInvocationContextImpl; -import org.jboss.portal.web.WebRequest; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; -import java.util.List; -import java.util.ArrayList; import java.util.Collection; /** @@ -84,9 +80,9 @@ /** * TODO: decouple the implementation via factory pattern - */ - PresentationContext presentationContext = new PresentationContextImpl(this.presentationServer, - invocation); + */ + PresentationContext presentationContext = presentationContext = new PresentationContextImpl(this.presentationServer, + invocation); request.setAttribute("requestContext", presentationContext); /** @@ -139,55 +135,74 @@ private void render(ServerInvocation invocation,PresentationContext presentationContext, String targetId) { UIObject uiObject = presentationContext.getUIContext().getObject(targetId); - + //Display the page to the client if(uiObject instanceof UIPage) { UIPage page = (UIPage)uiObject; + AjaxUIContext ajaxUiContext = presentationContext.getAjaxUIContext(); - org.jboss.portal.presentation.ajax.client.model.AjaxUIPage clientPage = new org.jboss.portal.presentation.ajax.client.model.AjaxUIPage(); - clientPage.setId(page.getId()); - //TODO: set proper status - //TODO: set proper parent reference + //Process the Page to be displayed + AjaxUIPage clientPage = (AjaxUIPage)ajaxUiContext.getObject(page.getId()); + boolean pageJustCreated = false; + if(clientPage == null) + { + clientPage = new org.jboss.portal.presentation.ajax.client.model.AjaxUIPage(); + clientPage.setId(page.getId()); + ajaxUiContext.addObject(clientPage); + pageJustCreated = true; + } - Collection<? extends UIObject> windows = page.getChildren(); - List clientWindows = new ArrayList(); + //Process the Windows belonging to this Page + Collection<? extends UIObject> windows = page.getChildren(); for(UIObject cour : windows) { if(cour instanceof UIWindow) { - UIWindow window = (UIWindow)cour; - try + UIWindow window = (UIWindow)cour; + + //Make sure this window properly belongs to the AjaxUIContext object tree + AjaxUIWindow clientWindow = (AjaxUIWindow)clientPage.getChild(window.getId()); + if(clientWindow == null) { - WindowContent windowContent = this.presentationServer.render(presentationContext, window); - - org.jboss.portal.presentation.ajax.client.model.AjaxUIWindow clientWindow = new org.jboss.portal.presentation.ajax.client.model.AjaxUIWindow(); - - clientWindow.setId(window.getId()); - clientWindow.setParent(clientPage); - //TODO: Set proper status - - clientWindow.setContent(windowContent.getMarkup()); - if(window.getMode() != null) - { - clientWindow.setMode(window.getMode().toString()); + clientWindow = new org.jboss.portal.presentation.ajax.client.model.AjaxUIWindow(); + clientWindow.setId(window.getId()); + clientPage.getChildren().add(clientWindow); + ajaxUiContext.addObject(clientWindow); + } + + //Render this window only if this Page is being rendered for the first time in this + //User Session or if the navigation state of this window has changed during this interaction + //TODO: also add cache expiration as one of the conditions for this action + if(pageJustCreated || clientWindow.getStatus() == AjaxUIWindow.STATUS_STALE) + { + try + { + WindowContent windowContent = this.presentationServer.render(presentationContext, window); + + clientWindow.setId(window.getId()); + clientWindow.setParent(clientPage); + + clientWindow.setContent(windowContent.getMarkup()); + if(window.getMode() != null) + { + clientWindow.setMode(window.getMode().toString()); + } + if(window.getWindowState() != null) + { + clientWindow.setState(window.getWindowState().toString()); + } + + //Restore the Status of the Window + clientWindow.setStatus(AjaxUIWindow.STATUS_VALID); } - if(window.getWindowState() != null) + catch (Exception e) { - clientWindow.setState(window.getWindowState().toString()); - } - - clientWindows.add(clientWindow); + e.printStackTrace(); + } } - catch (Exception e) - { - e.printStackTrace(); - } } - } - - clientPage.setChildren(clientWindows); - + } invocation.getServerContext().getClientRequest().setAttribute("uiObject", clientPage); } } @@ -243,86 +258,7 @@ { action = new ViewUIObjectAction("/default/default"); } - - - return action; - /*ServerInvocationContext invocationContext = invocation.getServerContext(); - String requestPath = invocation.getServerContext().getPortalRequestPath(); - - // - if (requestPath.startsWith("/invoke/")) - { - UIObject target = presentationContext.getUIContext(); - - // - int from = "/invoke/".length(); - while (true) - { - int pos = requestPath.indexOf('/', from); - if (pos == -1) - { - String name = requestPath.substring(from); - target = target.getChild(name); - break; - } - else - { - String name = requestPath.substring(from, pos); - target = target.getChild(name); - } - if (target == null) - { - break; - } - from = pos + 1; - } - - // I know but it will go away later when we remove dependency on server module - WebRequest webReq = ((ServerInvocationContextImpl)invocation.getContext()).getWebRequest(); - - // - if (target != null) - { - if ("GET".equals(webReq.getMethod())) - { - return new GetActivation(target.getId(), webReq.getQueryParameterMap()); - } - else if ("POST".equals(webReq.getMethod())) - { - return new PostActivation(target.getId(), webReq.getQueryParameterMap(), webReq.getBody()); - } - } - } - - - if(targetPortalObject instanceof UIPage) - { - serverAction = new ViewUIObjectAction(targetPortalObject.getId()); - } - else if(targetPortalObject instanceof UIWindow) - { - if(request.getMethod().equals("GET")) - { - GetActivation get = new GetActivation(); - get.setUrl(request.getRequestURL().toString()); - get.setContentType(invocationContext.getMediaType()); - get.setQueryParameters(invocationContext.getQueryParameterMap()); - get.setPortal(targetPortal); - get.setTarget(targetPortalObject); - serverAction = get; - } - else if(request.getMethod().equals("POST")) - { - PostActivation post = new PostActivation(); - post.setUrl(request.getRequestURL().toString()); - post.setContentType(invocationContext.getMediaType()); - post.setQueryParameters(invocationContext.getQueryParameterMap()); - post.setBodyParameters(invocationContext.getBodyParameterMap()); - post.setPortal(targetPortal); - post.setTarget(targetPortalObject); - serverAction = post; - } - }*/ - } + return action; + } } Modified: branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/controller/UIController.java =================================================================== --- branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/controller/UIController.java 2008-01-23 23:43:05 UTC (rev 9593) +++ branches/presentation/presentation/src/main/org/jboss/portal/presentation/client/controller/UIController.java 2008-01-24 04:51:25 UTC (rev 9594) @@ -40,14 +40,12 @@ import org.jboss.portal.server.RequestController; import org.jboss.portal.server.ServerException; import org.jboss.portal.server.ServerInvocation; -import org.jboss.portal.server.ServerInvocationContext; import org.jboss.portal.server.impl.ServerInvocationContextImpl; import org.jboss.portal.web.WebRequest; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.PrintWriter; -import java.util.List; import java.util.Collection; import java.util.Map; @@ -179,7 +177,6 @@ */ private ServerAction getServerAction(PresentationContext presentationContext, ServerInvocation invocation) { - ServerInvocationContext invocationContext = invocation.getServerContext(); String requestPath = invocation.getServerContext().getPortalRequestPath(); WebRequest webReq = ((ServerInvocationContextImpl)invocation.getContext()).getWebRequest(); Map queryParameters = webReq.getQueryParameterMap(); @@ -228,101 +225,8 @@ //Just use ViewUIObject command for now until URL interpretation/mapping //to ServiceAction is implemented - return new ViewUIObjectAction("/default/default"); - - /*if(targetPortalObject instanceof UIPage) - { - serverAction = new ViewUIObjectAction(targetPortalObject.getId()); - } - else if(targetPortalObject instanceof UIWindow) - { - if(request.getMethod().equals("GET")) - { - GetActivation get = new GetActivation(); - get.setUrl(request.getRequestURL().toString()); - get.setContentType(invocationContext.getMediaType()); - get.setQueryParameters(invocationContext.getQueryParameterMap()); - get.setPortal(targetPortal); - get.setTarget(targetPortalObject); - serverAction = get; - } - else if(request.getMethod().equals("POST")) - { - PostActivation post = new PostActivation(); - post.setUrl(request.getRequestURL().toString()); - post.setContentType(invocationContext.getMediaType()); - post.setQueryParameters(invocationContext.getQueryParameterMap()); - post.setBodyParameters(invocationContext.getBodyParameterMap()); - post.setPortal(targetPortal); - post.setTarget(targetPortalObject); - serverAction = post; - } - }*/ - } - - /** - * - * @param portalRequestPath - * @return - */ - /*private UIPortal getTargetPortal(RequestContext requestContext,String portalRequestPath) - { - UIPortal targetPortal = null; - - //Parse the portalRequestPath and find the targetted Portal - StringTokenizer st = new StringTokenizer(portalRequestPath, "/"); - StringBuffer buffer = new StringBuffer("/"); - while(st.hasMoreTokens()) - { - String token = st.nextToken(); - buffer.append(token); - String id = buffer.toString(); - ObjectState objectState = this.presentationServer.getStructuralStateManager().load(id); - if(objectState != null && objectState.getType() == UIPortal.class) - { - targetPortal = (UIPortal)requestContext.getUIContext().getObject(id); - break; - } - buffer.append("/"); - } - - return targetPortal; - }*/ - - /** - * - * @param portalRequestPath - * @return - */ - /*private UIObject getTargetPortalObject(RequestContext requestContext,String portalRequestPath) - { - UIObject targetPortalObject = null; - - //Parse the portalRequestPath and find the targetted Portal Object (Page or Window) - StringTokenizer st = new StringTokenizer(portalRequestPath, "/"); - StringBuffer buffer = new StringBuffer("/"); - while(st.hasMoreTokens()) - { - String token = st.nextToken(); - buffer.append(token); - String id = buffer.toString(); - ObjectState objectState = this.presentationServer.getStructuralStateManager().load(id); - if(objectState != null) - { - if(objectState.getType() == UIPage.class) - { - targetPortalObject = (UIPage)requestContext.getUIContext().getObject(id); - } - else if(objectState.getType() == UIWindow.class) - { - targetPortalObject = (UIWindow)requestContext.getUIContext().getObject(id); - } - } - buffer.append("/"); - } - - return targetPortalObject; - }*/ + return new ViewUIObjectAction("/default/default"); + } //----------------------------------------------------------------------------------------------------------------------------------------------------------- /** * TODO: this should be used only in classic UI case...eventually when Controller is abstracted, this will be moved to Modified: branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/PresentationContextImpl.java =================================================================== --- branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/PresentationContextImpl.java 2008-01-23 23:43:05 UTC (rev 9593) +++ branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/PresentationContextImpl.java 2008-01-24 04:51:25 UTC (rev 9594) @@ -22,9 +22,11 @@ ******************************************************************************/ package org.jboss.portal.presentation.impl; +import org.jboss.portal.presentation.ajax.client.model.AjaxUIContext; import org.jboss.portal.presentation.client.PresentationContext; import org.jboss.portal.presentation.impl.model.container.UIObjectContainer; import org.jboss.portal.presentation.impl.model.state.navigational.NavigationalStateContextImpl; +import org.jboss.portal.presentation.impl.model.AjaxModelListener; import org.jboss.portal.presentation.model.UIContext; import org.jboss.portal.presentation.model.UIObject; import org.jboss.portal.presentation.model.state.navigational.NavigationalStateContext; @@ -41,6 +43,7 @@ import org.jboss.portal.web.ServletContextDispatcher; import org.jboss.portal.web.impl.DefaultServletContainerFactory; +import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; /** @@ -56,40 +59,67 @@ /** . */ private PresentationServer presentationServer = null; - /** . */ - private UIObjectContainer container; - + /** + * + * @param presentationServer + * @param invocation + */ public PresentationContextImpl(PresentationServer presentationServer, ServerInvocation invocation) { this.invocation = invocation; this.presentationServer = presentationServer; } + /** + * + */ public UIContext getUIContext() { - if (container == null) - { - HttpSession session = this.invocation.getServerContext().getClientRequest().getSession(); + HttpSession session = this.invocation.getServerContext().getClientRequest().getSession(); + + //Process the UIObjectContainer for this session + UIObjectContainer uiObjectContainer = (UIObjectContainer)session.getAttribute(SessionConstants.serverModel); + if (uiObjectContainer == null) + { + NavigationalStateContext nsc = new NavigationalStateContextImpl(); // - NavigationalStateContext nsc = (NavigationalStateContext)session.getAttribute("nsc"); - if (nsc == null) - { - nsc = new NavigationalStateContextImpl(); - session.setAttribute("nsc", nsc); - } - - // - container = new UIObjectContainer(presentationServer.getStructuralStateManager(), nsc); + uiObjectContainer = new UIObjectContainer(presentationServer.getStructuralStateManager(), nsc); + + session.setAttribute(SessionConstants.serverModel, uiObjectContainer); } // - return container.getRoot(); + return uiObjectContainer.getRoot(); } /** * + * @param request + * @return */ + public AjaxUIContext getAjaxUIContext() + { + AjaxUIContext uiContext = null; + + HttpServletRequest request = this.invocation.getServerContext().getClientRequest(); + uiContext = (AjaxUIContext)request.getSession().getAttribute(SessionConstants.ajaxModel); + if(uiContext == null) + { + uiContext = new AjaxUIContext(); + request.getSession().setAttribute(SessionConstants.ajaxModel, uiContext); + + //Register a ModelListener to perform partial model updates based on receiving events due to + //Model State changes + this.getUIContext().addModelListener(new AjaxModelListener(this.getAjaxUIContext())); + } + + return uiContext; + } + + /** + * + */ public ServletContextDispatcher getDispatcher() { ServletContainer container = DefaultServletContainerFactory.getInstance().getServletContainer(); @@ -141,6 +171,11 @@ } } + /** + * + * @param object + * @param buffer + */ private static void createPath(UIObject object, StringBuffer buffer) { UIObject parent = object.getParent(); Added: branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/SessionConstants.java =================================================================== --- branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/SessionConstants.java (rev 0) +++ branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/SessionConstants.java 2008-01-24 04:51:25 UTC (rev 9594) @@ -0,0 +1,40 @@ +/****************************************************************************** + * JBoss, a division of Red Hat * + * Copyright 2006, Red Hat Middleware, LLC, and individual * + * contributors as indicated by the @authors tag. See the * + * copyright.txt in the distribution for a full listing of * + * individual contributors. * + * * + * This is free software; you can redistribute it and/or modify it * + * under the terms of the GNU Lesser General Public License as * + * published by the Free Software Foundation; either version 2.1 of * + * the License, or (at your option) any later version. * + * * + * This software is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * + * Lesser General Public License for more details. * + * * + * You should have received a copy of the GNU Lesser General Public * + * License along with this software; if not, write to the Free * + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * + * 02110-1301 USA, or see the FSF site: http://www.fsf.org. * + ******************************************************************************/ +package org.jboss.portal.presentation.impl; + +/** + * @author <a href="mailto:sshah@redhat.com">Sohil Shah</a> + * + */ +public interface SessionConstants +{ + /** + * Represents the session key for storing the server side UI model + */ + public final String serverModel = "serverModel"; + + /** + * Represents the session key for storing the client side UI model for the Ajax User Agent + */ + public final String ajaxModel = "ajaxModel"; +} Added: branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/model/AjaxModelListener.java =================================================================== --- branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/model/AjaxModelListener.java (rev 0) +++ branches/presentation/presentation/src/main/org/jboss/portal/presentation/impl/model/AjaxModelListener.java 2008-01-24 04:51:25 UTC (rev 9594) @@ -0,0 +1,84 @@ +/****************************************************************************** + * JBoss, a division of Red Hat * + * Copyright 2006, Red Hat Middleware, LLC, and individual * + * contributors as indicated by the @authors tag. See the * + * copyright.txt in the distribution for a full listing of * + * individual contributors. * + * * + * This is free software; you can redistribute it and/or modify it * + * under the terms of the GNU Lesser General Public License as * + * published by the Free Software Foundation; either version 2.1 of * + * the License, or (at your option) any later version. * + * * + * This software is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * + * Lesser General Public License for more details. * + * * + * You should have received a copy of the GNU Lesser General Public * + * License along with this software; if not, write to the Free * + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * + * 02110-1301 USA, or see the FSF site: http://www.fsf.org. * + ******************************************************************************/ +package org.jboss.portal.presentation.impl.model; + +import org.jboss.portal.presentation.ajax.client.model.AjaxUIContext; +import org.jboss.portal.presentation.ajax.client.model.AjaxUIObject; +import org.jboss.portal.presentation.model.ModelEvent; +import org.jboss.portal.presentation.model.ModelListener; +import org.jboss.portal.presentation.model.event.state.StateChangeEvent; +import org.jboss.portal.presentation.model.event.state.StateChange; +import org.jboss.portal.presentation.model.event.state.StateModification; +import org.jboss.portal.presentation.model.event.state.navigational.NavigationalStateModification; +import org.jboss.portal.presentation.model.event.state.structural.StructuralStateModification; + +/** + * @author <a href="mailto:sshah@redhat.com">Sohil Shah</a> + * + */ +public class AjaxModelListener implements ModelListener +{ + private AjaxUIContext ajaxUiContext = null; + + /** + * + * @param uiContext + */ + public AjaxModelListener(AjaxUIContext ajaxUiContext) + { + this.ajaxUiContext = ajaxUiContext; + } + + /** + * + */ + public void onEvent(ModelEvent event) + { + if(event instanceof StateChangeEvent) + { + StateChangeEvent stateChangeEvent = (StateChangeEvent)event; + StateChange stateChange = stateChangeEvent.getChange(); + StateModification modification = stateChange.getModification(); + if(modification instanceof NavigationalStateModification) + { + NavigationalStateModification navMod = (NavigationalStateModification)modification; + if(this.ajaxUiContext != null) + { + AjaxUIObject ajaxUiObject = this.ajaxUiContext.getObject(stateChange.getTargetId()); + if(ajaxUiObject != null) + { + ajaxUiObject.setStatus(AjaxUIObject.STATUS_STALE); + } + } + } + else if(modification instanceof StructuralStateModification) + { + StructuralStateModification structMod = (StructuralStateModification)modification; + + /** + * TODO: Process Structural State Modifications + */ + } + } + } +}