Author: abelevich Date: 2010-05-17 11:47:21 -0400 (Mon, 17 May 2010) New Revision: 17084 Modified: root/ui/core/trunk/api/src/main/java/org/richfaces/view/facelets/html/AjaxHandler.java Log: use CustomBehaviorHandler as base Modified: root/ui/core/trunk/api/src/main/java/org/richfaces/view/facelets/html/AjaxHandler.java =================================================================== --- root/ui/core/trunk/api/src/main/java/org/richfaces/view/facelets/html/AjaxHandler.java 2010-05-17 14:41:26 UTC (rev 17083) +++ root/ui/core/trunk/api/src/main/java/org/richfaces/view/facelets/html/AjaxHandler.java 2010-05-17 15:47:21 UTC (rev 17084) @@ -1,6 +1,6 @@ /* * JBoss, Home of Professional Open Source - * Copyright 2009, Red Hat, Inc. and individual contributors + * Copyright ${year}, Red Hat, Inc. and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * @@ -25,113 +25,96 @@ import java.beans.BeanDescriptor; import java.beans.BeanInfo; import java.io.IOException; -import java.io.Serializable; +import java.util.ArrayList; import java.util.Collection; import java.util.List; +import java.util.Map; -import javax.el.ELContext; -import javax.el.MethodExpression; import javax.faces.application.Application; import javax.faces.component.UIComponent; +import javax.faces.component.behavior.Behavior; import javax.faces.component.behavior.ClientBehavior; import javax.faces.component.behavior.ClientBehaviorHolder; import javax.faces.context.FacesContext; -import javax.faces.event.AbortProcessingException; -import javax.faces.event.AjaxBehaviorEvent; -import javax.faces.event.AjaxBehaviorListener; +import javax.faces.view.AttachedObjectHandler; import javax.faces.view.AttachedObjectTarget; -import javax.faces.view.BehaviorHolderAttachedObjectHandler; import javax.faces.view.BehaviorHolderAttachedObjectTarget; import javax.faces.view.facelets.BehaviorConfig; import javax.faces.view.facelets.ComponentHandler; import javax.faces.view.facelets.FaceletContext; -import javax.faces.view.facelets.TagAttribute; import javax.faces.view.facelets.TagException; -import javax.faces.view.facelets.TagHandler; import org.ajax4jsf.component.behavior.AjaxBehavior; import org.richfaces.component.AbstractAttachQueue; import org.richfaces.view.facelets.html.BehaviorStack.BehaviorInfo; -//TODO nick - use TagHandlerDelegate -public class AjaxHandler extends TagHandler implements BehaviorHolderAttachedObjectHandler { +/** + * @author Anton Belevich + * + */ +public class AjaxHandler extends CustomBehaviorHandler { - private final TagAttribute disabled; - private final TagAttribute event; - private final TagAttribute execute; - private final TagAttribute immediate; - private final TagAttribute limitRender; - private final TagAttribute listener; - private final TagAttribute onbeforedomupdate; - private final TagAttribute onbegin; - private final TagAttribute oncomplete; - private final TagAttribute onerror; - private final TagAttribute onevent; - private final TagAttribute render; - private final TagAttribute similarityGroupingId; - private final TagAttribute statusId; - + private static final String JAVAX_FACES_RETARGETABLE_HANDLERS = "javax.faces.RetargetableHandlers"; + + + public AjaxHandler(BehaviorConfig config) { - super(config); - this.event = this.getAttribute("event"); - this.execute = this.getAttribute("execute"); - this.render = this.getAttribute("render"); - this.disabled = this.getAttribute("disabled"); - this.immediate = this.getAttribute("immediate"); - this.listener = this.getAttribute("listener"); - this.limitRender = this.getAttribute("limitRender"); - this.statusId = this.getAttribute("status"); - this.similarityGroupingId = this.getAttribute("similarityGroupingId"); - this.onevent = this.getAttribute("onevent"); - this.onerror = this.getAttribute("onerror"); - this.onbegin = this.getAttribute("onbegin"); - this.oncomplete = this.getAttribute("oncomplete"); - this.onbeforedomupdate = this.getAttribute("onbeforedomupdate"); + super(config); + } - + public void apply(FaceletContext ctx, UIComponent parent) throws IOException { String eventName = getEventName(); - AjaxBehavior ajaxBehavior = createAjaxBehavior(ctx, eventName); - FacesContext context = ctx.getFacesContext(); - BehaviorStack ajaxBehaviors = BehaviorStack.getBehaviorStack(context, true); - ajaxBehaviors.pushBehavior(context, ajaxBehavior, AjaxBehavior.BEHAVIOR_ID, eventName); - - AttachQueueStack attachQueueStack = AttachQueueStack.getStack(context, true); - AttachQueueInfo attachQueueInfo = new AttachQueueInfo(parent); - attachQueueStack.push(attachQueueInfo); - - nextHandler.apply(ctx, parent); - - attachQueueStack.pop(); - - BehaviorInfo behaviorInfo = ajaxBehaviors.popBehavior(); - if (behaviorInfo != null) { - if (behaviorInfo.isWrapping()) { - AbstractAttachQueue attachQueue = attachQueueInfo.getAttachQueue(); - if (attachQueue != null) { - List<ClientBehavior> behaviors = behaviorInfo.getBehaviors(); - if (behaviors != null) { - for (ClientBehavior behavior : behaviors) { - if (behavior instanceof AjaxBehavior) { - AjaxBehavior createdAjaxBehavior = (AjaxBehavior) behavior; - attachQueue.associateWith(createdAjaxBehavior); + + Application application = ctx.getFacesContext().getApplication(); + Behavior behavior = application.createBehavior(getBehaviorId()); + if(behavior instanceof AjaxBehavior) { + setAttributes(ctx, behavior); + AjaxBehavior ajaxBehavior = (AjaxBehavior)behavior; + + FacesContext context = ctx.getFacesContext(); + BehaviorStack ajaxBehaviors = BehaviorStack.getBehaviorStack(context, true); + ajaxBehaviors.pushBehavior(context, ajaxBehavior, AjaxBehavior.BEHAVIOR_ID, eventName); + + AttachQueueStack attachQueueStack = AttachQueueStack.getStack(context, true); + AttachQueueInfo attachQueueInfo = new AttachQueueInfo(parent); + attachQueueStack.push(attachQueueInfo); + + nextHandler.apply(ctx, parent); + + attachQueueStack.pop(); + + BehaviorInfo behaviorInfo = ajaxBehaviors.popBehavior(); + if (behaviorInfo != null) { + if (behaviorInfo.isWrapping()) { + AbstractAttachQueue attachQueue = attachQueueInfo.getAttachQueue(); + if (attachQueue != null) { + List<ClientBehavior> behaviors = behaviorInfo.getBehaviors(); + if (behaviors != null) { + for (ClientBehavior processBehavior : behaviors) { + if (processBehavior instanceof AjaxBehavior) { + AjaxBehavior createdAjaxBehavior = (AjaxBehavior) behavior; + attachQueue.associateWith(createdAjaxBehavior); + } } } } + } else { + AbstractAttachQueue attachQueue = attachQueueInfo.getAttachQueue(); + if (attachQueue != null) { + attachQueue.associateWith(ajaxBehavior); + } + + applyNested(ctx, parent, ajaxBehavior); } } else { - AbstractAttachQueue attachQueue = attachQueueInfo.getAttachQueue(); - if (attachQueue != null) { - attachQueue.associateWith(ajaxBehavior); - } - - applyNested(ctx, parent, ajaxBehavior); + //TODO nick - is this possible? } - } else { - //TODO nick - is this possible? + } } - + + private void applyNested(FaceletContext ctx, UIComponent parent, AjaxBehavior behavior) { if (!ComponentHandler.isNew(parent)) { return; @@ -177,7 +160,7 @@ } if (supportedEvent) { - TagHandlerUtils.getOrCreateRetargetableHandlersList(parent).add(this); + getOrCreateRetargetableHandlersList(parent).add(this); } else { throw new TagException(tag, "Error: enclosing composite component does not support event " + eventName); } @@ -189,7 +172,21 @@ throw new TagException(this.tag, "Unable to attach <a4j:ajax> to non-ClientBehaviorHolder parent"); } } + + private static List<AttachedObjectHandler> getOrCreateRetargetableHandlersList(UIComponent component) { + Map<String, Object> attrs = component.getAttributes(); + @SuppressWarnings({ + "unchecked"}) List<AttachedObjectHandler> list = + (List<AttachedObjectHandler>) attrs.get(JAVAX_FACES_RETARGETABLE_HANDLERS); + if (list == null) { + list = new ArrayList<AttachedObjectHandler>(); + attrs.put(JAVAX_FACES_RETARGETABLE_HANDLERS, list); + } + + return list; + } + private String resolveEventName(ClientBehaviorHolder bHolder) { String eventName = getEventName(); if (null == eventName) { @@ -210,87 +207,4 @@ return eventName; } - - public AjaxBehavior createAjaxBehavior(FaceletContext fContext, String eventName) { - Application application = fContext.getFacesContext().getApplication(); - AjaxBehavior ajaxBehavior = (AjaxBehavior) application.createBehavior(AjaxBehavior.BEHAVIOR_ID); - - setBehaviorAttribute(fContext, ajaxBehavior, this.disabled, Boolean.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.immediate, Boolean.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.execute, Object.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.render, Object.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.limitRender, Boolean.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.statusId, String.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.similarityGroupingId, String.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.onevent, String.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.onerror, String.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.onbegin, String.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.oncomplete, String.class); - setBehaviorAttribute(fContext, ajaxBehavior, this.onbeforedomupdate, String.class); - registerBehaviorListener(fContext, ajaxBehavior, listener); - - return ajaxBehavior; - } - - public void applyAttachedObject(FacesContext context, UIComponent parent) { - FaceletContext ctx = (FaceletContext) context.getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY); - - ClientBehaviorHolder bHolder = (ClientBehaviorHolder) parent; - String eventName = resolveEventName(bHolder); - - AjaxBehavior ajaxBehavior = createAjaxBehavior(ctx, eventName); - bHolder.addClientBehavior(eventName, ajaxBehavior); - } - - private void setBehaviorAttribute(FaceletContext ctx, AjaxBehavior behavior, TagAttribute attr, Class<?> type) { - if (attr != null) { - behavior.setValueExpression(attr.getLocalName(), attr.getValueExpression(ctx, type)); - } - } - - public String getEventName() { - return (this.event != null) ? this.event.getValue() : null; - } - - public String getFor() { - return null; - } - - public void registerBehaviorListener(FaceletContext fContext, AjaxBehavior behavior, TagAttribute listenerAttr) { - if (listenerAttr != null) { - MethodExpression mExpression = listenerAttr.getMethodExpression(fContext, Object.class, - new Class[] {AjaxBehaviorEvent.class}); - - behavior.addAjaxBehaviorListener(new AjaxBehaviorListenerImpl(mExpression)); - } - } - - static class AjaxBehaviorListenerImpl implements AjaxBehaviorListener, Serializable { - /** - * - */ - private static final long serialVersionUID = 1812543470662919310L; - - private MethodExpression methodExpression; - - public AjaxBehaviorListenerImpl() {} - - public AjaxBehaviorListenerImpl(MethodExpression expression) { - this.methodExpression = expression; - } - - public void processAjaxBehavior(AjaxBehaviorEvent event) throws AbortProcessingException { - if (methodExpression != null) { - ELContext elContext = FacesContext.getCurrentInstance().getELContext(); - - try { - methodExpression.invoke(elContext, new Object[] {event}); - } catch (Exception e) { - - // TODO: log or message ?? - throw new AbortProcessingException(e); - } - } - } - } }