impl/src/main/java/org/apache/myfaces/renderkit/html/HtmlCommandScriptRenderer.java - myfaces - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */

 package org.apache.myfaces.renderkit.html;

 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.RandomAccess;
 import javax.faces.component.UIComponent;
 import javax.faces.component.UIForm;
 import javax.faces.component.UIParameter;
 import javax.faces.component.behavior.ClientBehaviorContext;
 import javax.faces.component.behavior.ClientBehaviorHolder;
 import javax.faces.component.html.HtmlCommandScript;
 import javax.faces.component.search.SearchExpressionContext;
 import javax.faces.component.search.SearchExpressionHandler;
 import javax.faces.context.FacesContext;
 import javax.faces.context.ResponseWriter;
 import javax.faces.event.ActionEvent;
 import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFRenderer;
 import org.apache.myfaces.component.search.MyFacesSearchExpressionHints;
 import org.apache.myfaces.renderkit.html.base.ClientBehaviorRendererUtils;
 import org.apache.myfaces.renderkit.html.util.HTML;
 import org.apache.myfaces.renderkit.html.base.HtmlRenderer;
 import org.apache.myfaces.renderkit.html.base.HtmlRendererUtils;
 import org.apache.myfaces.renderkit.html.util.JavascriptContext;
 import org.apache.myfaces.renderkit.html.util.JavascriptUtils;
 import org.apache.myfaces.renderkit.html.util.ResourceUtils;
 import org.apache.myfaces.util.ComponentUtils;
 import org.apache.myfaces.util.lang.StringUtils;
 import org.apache.myfaces.util.SharedStringBuilder;

 @JSFRenderer(renderKitId = "HTML_BASIC", family = "javax.faces.Command", type = "javax.faces.Script")
 public class HtmlCommandScriptRenderer extends HtmlRenderer
 {
     private static final String AJAX_KEY_ONERROR = "onerror";
     private static final String AJAX_KEY_ONEVENT = "onevent";
     private static final String AJAX_KEY_EXECUTE = "execute";
     private static final String AJAX_KEY_RENDER = "render";
     private static final String AJAX_KEY_RESETVALUES = "resetValues";

     private static final String AJAX_VAL_THIS = "this";
     private static final String JS_AJAX_REQUEST = "jsf.ajax.request";

     private static final String AJAX_SB = "oam.renderkit.AJAX_SB";
     private static final String AJAX_PARAM_SB = "oam.renderkit.AJAX_PARAM_SB";

     @Override
     public void encodeBegin(FacesContext context, UIComponent component) throws IOException
     {
         super.encodeBegin(context, component);

         HtmlCommandScript commandScript = (HtmlCommandScript) component;
         ResponseWriter writer = context.getResponseWriter();

         ResourceUtils.renderDefaultJsfJsInlineIfNecessary(context, writer);

         writer.startElement(HTML.SPAN_ELEM, component);
         writer.writeAttribute(HTML.ID_ATTR, component.getClientId(context), null);
         writer.startElement(HTML.SCRIPT_ELEM, component);
         writer.writeAttribute(HTML.SCRIPT_TYPE_ATTR, HTML.SCRIPT_TYPE_TEXT_JAVASCRIPT, null);

         JavascriptContext script = new JavascriptContext();

         //Write content
         String cmdName = commandScript.getName();
         String name;
         if (cmdName != null && cmdName.length() > 0)
         {
             name = JavascriptUtils.getValidJavascriptName(cmdName, true);
         }
         else
         {
             name = JavascriptUtils.getValidJavascriptName(component.getClientId(context), true);
         }

         script.prettyLine();
         script.increaseIndent();
         script.append("var "+name+" = function(o){var o=(typeof o==='object')&&o?o:{};");
         script.prettyLine();


         Collection<ClientBehaviorContext.Parameter> eventParameters = null;
         //eventParameters.add(new ClientBehaviorContext.Parameter("params", "o"));
         ClientBehaviorContext ccc = ClientBehaviorContext.createClientBehaviorContext(
                                     context, component, "action",
                                     commandScript.getClientId(context), eventParameters);

         script.append(makeAjax(context, ccc, commandScript).toString());
         script.decreaseIndent();
         script.append("}");


         if (commandScript.isAutorun())
         {
             script.append(";");
             script.append("myfaces._impl.core._Runtime.addOnLoad(window,");
             script.append(name);
             script.append(");");
         }

         writer.writeText(script.toString(), null);
     }

     @Override
     public void encodeEnd(FacesContext context, UIComponent component) throws IOException
     {
         super.encodeEnd(context, component); //
         ResponseWriter writer = context.getResponseWriter();
         writer.endElement(HTML.SCRIPT_ELEM);
         writer.endElement(HTML.SPAN_ELEM);
     }

     @Override
     public void decode(FacesContext facesContext, UIComponent component)
     {
         super.decode(facesContext, component);

         HtmlCommandScript commandScript = (HtmlCommandScript) component;

         if (HtmlRendererUtils.isDisabled(component) || !commandScript.isRendered())
         {
             return;
         }

         Map<String, String> paramMap = facesContext.getExternalContext().getRequestParameterMap();
         String behaviorEventName = paramMap.get(ClientBehaviorContext.BEHAVIOR_EVENT_PARAM_NAME);
         if (behaviorEventName != null)
         {
             String sourceId = paramMap.get(ClientBehaviorContext.BEHAVIOR_SOURCE_PARAM_NAME);
             String componentClientId = component.getClientId(facesContext);
             String clientId = sourceId;
             if (sourceId.startsWith(componentClientId) && sourceId.length() > componentClientId.length())
             {
                 String item = sourceId.substring(componentClientId.length()+1);
                 // If is item it should be an integer number, otherwise it can be related to a child
                 // component, because that could conflict with the clientId naming convention.
                 if (StringUtils.isInteger(item))
                 {
                     clientId = componentClientId;
                 }
             }
             if (component.getClientId(facesContext).equals(clientId))
             {
                 boolean disabled = HtmlRendererUtils.isDisabled(component);
                 UIForm form = ComponentUtils.closest(UIForm.class, component);
                 boolean activateActionEvent = false;
                 if (form != null && !disabled)
                 {
                     String reqValue = (String) facesContext.getExternalContext().getRequestParameterMap().get(
                             HtmlRendererUtils.getHiddenCommandLinkFieldName(form, facesContext));
                     activateActionEvent = reqValue != null && reqValue.equals(clientId)
                         || HtmlRendererUtils.isPartialOrBehaviorSubmit(facesContext, clientId);
                 }
                 if (activateActionEvent)
                 {
                     component.queueEvent(new ActionEvent(component));
                 }
             }
         }

         if (component instanceof ClientBehaviorHolder && !HtmlRendererUtils.isDisabled(component))
         {
             ClientBehaviorRendererUtils.decodeClientBehaviors(facesContext, component);
         }
     }

     /**
      * builds the generic ajax call depending upon
      * the ajax behavior parameters
      *
      * @param context  the Client behavior context
      * @param behavior the behavior
      * @param commandScript the component
      * @return a fully working javascript with calls into jsf.js
      */
     private StringBuilder makeAjax(FacesContext facesContext, ClientBehaviorContext context,
             HtmlCommandScript commandScript)
     {
         StringBuilder retVal = SharedStringBuilder.get(context.getFacesContext(), AJAX_SB, 60);
         StringBuilder paramBuffer = SharedStringBuilder.get(context.getFacesContext(), AJAX_PARAM_SB, 20);

         SearchExpressionContext searchExpressionContext = SearchExpressionContext.createSearchExpressionContext(
                 context.getFacesContext(), context.getComponent(),
                 MyFacesSearchExpressionHints.SET_RESOLVE_CLIENT_SIDE_RESOLVE_SINGLE_COMPONENT, null);

         String executes = resolveExpressionsAsParameter(paramBuffer, AJAX_KEY_EXECUTE, commandScript.getExecute(),
                 searchExpressionContext);
         String render = resolveExpressionsAsParameter(paramBuffer, AJAX_KEY_RENDER, commandScript.getRender(),
                 searchExpressionContext);

         String onError = commandScript.getOnerror();
         if (StringUtils.isNotBlank(onError))
         {
             paramBuffer.setLength(0);
             paramBuffer.append(AJAX_KEY_ONERROR);
             paramBuffer.append(':');
             paramBuffer.append(onError);
             onError = paramBuffer.toString();
         }
         else
         {
             onError = null;
         }

         String onEvent = commandScript.getOnevent();
         if (StringUtils.isNotBlank(onEvent))
         {
             paramBuffer.setLength(0);
             paramBuffer.append(AJAX_KEY_ONEVENT);
             paramBuffer.append(':');
             paramBuffer.append(onEvent);
             onEvent = paramBuffer.toString();
         }
         else
         {
             onEvent = null;
         }

         String resetValues = null;
         if (Boolean.TRUE.equals(commandScript.getResetValues()))
         {
             paramBuffer.setLength(0);
             paramBuffer.append(AJAX_KEY_RESETVALUES);
             paramBuffer.append(':');
             paramBuffer.append("true");
             resetValues = paramBuffer.toString();
         }

         String sourceId = null;
         if (context.getSourceId() == null)
         {
             sourceId = AJAX_VAL_THIS;
         }
         else
         {
             paramBuffer.setLength(0);
             paramBuffer.append('\'');
             paramBuffer.append(context.getSourceId());
             paramBuffer.append('\'');
             sourceId = paramBuffer.toString();

             if (!context.getSourceId().trim().equals(
                 context.getComponent().getClientId(context.getFacesContext())))
             {
                 // Check if sourceId is not a clientId and there is no execute set
                 UIComponent ref = context.getComponent();
                 ref = (ref.getParent() == null) ? ref : ref.getParent();
                 UIComponent instance = null;
                 try
                 {
                     instance = ref.findComponent(context.getSourceId());
                 }
                 catch (IllegalArgumentException e)
                 {
                     // No Op
                 }
                 if (instance == null && executes == null)
                 {
                     // set the clientId of the component so the behavior can be decoded later,
                     // otherwise the behavior will fail
                     executes = resolveExpressionsAsParameter(paramBuffer, AJAX_KEY_EXECUTE,
                             context.getComponent().getClientId(context.getFacesContext()), searchExpressionContext);
                 }
             }
         }

         String event = context.getEventName();

         retVal.append(JS_AJAX_REQUEST);
         retVal.append('(');
         retVal.append(sourceId);
         retVal.append(",window.event,myfaces._impl._util._Lang.mixMaps(");

         Collection<ClientBehaviorContext.Parameter> params = context.getParameters();
         int paramSize = (params != null) ? params.size() : 0;

         List<String> parameterList = new ArrayList<>(paramSize + 2);
         if (executes != null)
         {
             parameterList.add(executes);
         }
         if (render != null)
         {
             parameterList.add(render);
         }
         if (onError != null)
         {
             parameterList.add(onError);
         }
         if (onEvent != null)
         {
             parameterList.add(onEvent);
         }
         if (resetValues != null)
         {
             parameterList.add(resetValues);
         }
         if (paramSize > 0)
         {
             /**
              * see ClientBehaviorContext.html of the spec
              * the param list has to be added in the post back
              */
             // params are in 99% RamdonAccess instace created in
             // HtmlRendererUtils.getClientBehaviorContextParameters(Map<String, String>)
             if (params instanceof RandomAccess)
             {
                 List<ClientBehaviorContext.Parameter> list = (List<ClientBehaviorContext.Parameter>) params;
                 for (int i = 0, size = list.size(); i < size; i++)
                 {
                     ClientBehaviorContext.Parameter param = list.get(i);
                     append(paramBuffer, parameterList, param.getName(), param.getValue());
                 }
             }
             else
             {
                 for (ClientBehaviorContext.Parameter param : params)
                 {
                     append(paramBuffer, parameterList, param.getName(), param.getValue());
                 }
             }
         }

         List<UIParameter> uiParams = HtmlRendererUtils.getValidUIParameterChildren(
                 facesContext, getChildren(commandScript), false, false);
         if (uiParams != null && uiParams.size() > 0)
         {
             for (int i = 0, size = uiParams.size(); i < size; i++)
             {
                 UIParameter param = uiParams.get(i);
                 append(paramBuffer, parameterList, param.getName(), param.getValue());
             }
         }

         paramBuffer.setLength(0);
         paramBuffer.append('\'');
         paramBuffer.append(ClientBehaviorContext.BEHAVIOR_EVENT_PARAM_NAME);
         paramBuffer.append("\':\'");
         paramBuffer.append(event);
         paramBuffer.append('\'');
         parameterList.add(paramBuffer.toString());

         /**
          * I assume here for now that the options are the same which also
          * can be sent via the options attribute to javax.faces.ajax
          * this still needs further clarifications but I assume so for now
          */
         retVal.append(buildOptions(paramBuffer, parameterList));

         //mixMaps
         retVal.append(",o,false))");

         return retVal;
     }

     private void append(StringBuilder paramBuffer, List<String> parameterList, String paramName, Object paramValue)
     {
         //Both name and value should be quoted
         paramBuffer.setLength(0);
         paramBuffer.append('\'');
         paramBuffer.append(paramName);
         paramBuffer.append("\':\'");
         if (paramValue != null)
         {
             paramBuffer.append(paramValue.toString());
         }
         paramBuffer.append('\'');
         parameterList.add(paramBuffer.toString());
     }

     private StringBuilder buildOptions(StringBuilder retVal, List<String> options)
     {
         retVal.setLength(0);

         retVal.append('{');

         boolean first = true;

         for (int i = 0, size = options.size(); i < size; i++)
         {
             String option = options.get(i);
             if (StringUtils.isNotBlank(option))
             {
                 if (!first)
                 {
                     retVal.append(',');
                 }
                 else
                 {
                     first = false;
                 }
                 retVal.append(option);
             }
         }
         retVal.append('}');
         return retVal;
     }

     private String resolveExpressionsAsParameter(StringBuilder retVal, String target, String expressions,
             SearchExpressionContext searchExpressionContext)
     {
         if (StringUtils.isNotBlank(expressions))
         {
             retVal.setLength(0);
             retVal.append(target);
             retVal.append(':');
             retVal.append('\'');

             SearchExpressionHandler handler =
                     searchExpressionContext.getFacesContext().getApplication().getSearchExpressionHandler();
             List<String> clientIds =
                     handler.resolveClientIds(searchExpressionContext, expressions);

             if (clientIds != null && !clientIds.isEmpty())
             {
                 for (int i = 0; i < clientIds.size(); i++)
                 {
                     if (i > 0)
                     {
                         retVal.append(' ');
                     }
                     retVal.append(clientIds.get(i));
                 }
             }

             retVal.append('\'');
             return retVal.toString();
         }

         return null;
     }
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/

	package org.apache.myfaces.renderkit.html;

	import java.io.IOException;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.List;
	import java.util.Map;
	import java.util.RandomAccess;
	import javax.faces.component.UIComponent;
	import javax.faces.component.UIForm;
	import javax.faces.component.UIParameter;
	import javax.faces.component.behavior.ClientBehaviorContext;
	import javax.faces.component.behavior.ClientBehaviorHolder;
	import javax.faces.component.html.HtmlCommandScript;
	import javax.faces.component.search.SearchExpressionContext;
	import javax.faces.component.search.SearchExpressionHandler;
	import javax.faces.context.FacesContext;
	import javax.faces.context.ResponseWriter;
	import javax.faces.event.ActionEvent;
	import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFRenderer;
	import org.apache.myfaces.component.search.MyFacesSearchExpressionHints;
	import org.apache.myfaces.renderkit.html.base.ClientBehaviorRendererUtils;
	import org.apache.myfaces.renderkit.html.util.HTML;
	import org.apache.myfaces.renderkit.html.base.HtmlRenderer;
	import org.apache.myfaces.renderkit.html.base.HtmlRendererUtils;
	import org.apache.myfaces.renderkit.html.util.JavascriptContext;
	import org.apache.myfaces.renderkit.html.util.JavascriptUtils;
	import org.apache.myfaces.renderkit.html.util.ResourceUtils;
	import org.apache.myfaces.util.ComponentUtils;
	import org.apache.myfaces.util.lang.StringUtils;
	import org.apache.myfaces.util.SharedStringBuilder;

	@JSFRenderer(renderKitId = "HTML_BASIC", family = "javax.faces.Command", type = "javax.faces.Script")
	public class HtmlCommandScriptRenderer extends HtmlRenderer
	{
	private static final String AJAX_KEY_ONERROR = "onerror";
	private static final String AJAX_KEY_ONEVENT = "onevent";
	private static final String AJAX_KEY_EXECUTE = "execute";
	private static final String AJAX_KEY_RENDER = "render";
	private static final String AJAX_KEY_RESETVALUES = "resetValues";

	private static final String AJAX_VAL_THIS = "this";
	private static final String JS_AJAX_REQUEST = "jsf.ajax.request";

	private static final String AJAX_SB = "oam.renderkit.AJAX_SB";
	private static final String AJAX_PARAM_SB = "oam.renderkit.AJAX_PARAM_SB";

	@Override
	public void encodeBegin(FacesContext context, UIComponent component) throws IOException
	{
	super.encodeBegin(context, component);

	HtmlCommandScript commandScript = (HtmlCommandScript) component;
	ResponseWriter writer = context.getResponseWriter();

	ResourceUtils.renderDefaultJsfJsInlineIfNecessary(context, writer);

	writer.startElement(HTML.SPAN_ELEM, component);
	writer.writeAttribute(HTML.ID_ATTR, component.getClientId(context), null);
	writer.startElement(HTML.SCRIPT_ELEM, component);
	writer.writeAttribute(HTML.SCRIPT_TYPE_ATTR, HTML.SCRIPT_TYPE_TEXT_JAVASCRIPT, null);

	JavascriptContext script = new JavascriptContext();

	//Write content
	String cmdName = commandScript.getName();
	String name;
	if (cmdName != null && cmdName.length() > 0)
	{
	name = JavascriptUtils.getValidJavascriptName(cmdName, true);
	}
	else
	{
	name = JavascriptUtils.getValidJavascriptName(component.getClientId(context), true);
	}

	script.prettyLine();
	script.increaseIndent();
	script.append("var "+name+" = function(o){var o=(typeof o==='object')&&o?o:{};");
	script.prettyLine();


	Collection<ClientBehaviorContext.Parameter> eventParameters = null;
	//eventParameters.add(new ClientBehaviorContext.Parameter("params", "o"));
	ClientBehaviorContext ccc = ClientBehaviorContext.createClientBehaviorContext(
	context, component, "action",
	commandScript.getClientId(context), eventParameters);

	script.append(makeAjax(context, ccc, commandScript).toString());
	script.decreaseIndent();
	script.append("}");


	if (commandScript.isAutorun())
	{
	script.append(";");
	script.append("myfaces._impl.core._Runtime.addOnLoad(window,");
	script.append(name);
	script.append(");");
	}

	writer.writeText(script.toString(), null);
	}

	@Override
	public void encodeEnd(FacesContext context, UIComponent component) throws IOException
	{
	super.encodeEnd(context, component); //
	ResponseWriter writer = context.getResponseWriter();
	writer.endElement(HTML.SCRIPT_ELEM);
	writer.endElement(HTML.SPAN_ELEM);
	}

	@Override
	public void decode(FacesContext facesContext, UIComponent component)
	{
	super.decode(facesContext, component);

	HtmlCommandScript commandScript = (HtmlCommandScript) component;

	if (HtmlRendererUtils.isDisabled(component) \|\| !commandScript.isRendered())
	{
	return;
	}

	Map<String, String> paramMap = facesContext.getExternalContext().getRequestParameterMap();
	String behaviorEventName = paramMap.get(ClientBehaviorContext.BEHAVIOR_EVENT_PARAM_NAME);
	if (behaviorEventName != null)
	{
	String sourceId = paramMap.get(ClientBehaviorContext.BEHAVIOR_SOURCE_PARAM_NAME);
	String componentClientId = component.getClientId(facesContext);
	String clientId = sourceId;
	if (sourceId.startsWith(componentClientId) && sourceId.length() > componentClientId.length())
	{
	String item = sourceId.substring(componentClientId.length()+1);
	// If is item it should be an integer number, otherwise it can be related to a child
	// component, because that could conflict with the clientId naming convention.
	if (StringUtils.isInteger(item))
	{
	clientId = componentClientId;
	}
	}
	if (component.getClientId(facesContext).equals(clientId))
	{
	boolean disabled = HtmlRendererUtils.isDisabled(component);
	UIForm form = ComponentUtils.closest(UIForm.class, component);
	boolean activateActionEvent = false;
	if (form != null && !disabled)
	{
	String reqValue = (String) facesContext.getExternalContext().getRequestParameterMap().get(
	HtmlRendererUtils.getHiddenCommandLinkFieldName(form, facesContext));
	activateActionEvent = reqValue != null && reqValue.equals(clientId)
	\|\| HtmlRendererUtils.isPartialOrBehaviorSubmit(facesContext, clientId);
	}
	if (activateActionEvent)
	{
	component.queueEvent(new ActionEvent(component));
	}
	}
	}

	if (component instanceof ClientBehaviorHolder && !HtmlRendererUtils.isDisabled(component))
	{
	ClientBehaviorRendererUtils.decodeClientBehaviors(facesContext, component);
	}
	}

	/**
	* builds the generic ajax call depending upon
	* the ajax behavior parameters
	*
	* @param context the Client behavior context
	* @param behavior the behavior
	* @param commandScript the component
	* @return a fully working javascript with calls into jsf.js
	*/
	private StringBuilder makeAjax(FacesContext facesContext, ClientBehaviorContext context,
	HtmlCommandScript commandScript)
	{
	StringBuilder retVal = SharedStringBuilder.get(context.getFacesContext(), AJAX_SB, 60);
	StringBuilder paramBuffer = SharedStringBuilder.get(context.getFacesContext(), AJAX_PARAM_SB, 20);

	SearchExpressionContext searchExpressionContext = SearchExpressionContext.createSearchExpressionContext(
	context.getFacesContext(), context.getComponent(),
	MyFacesSearchExpressionHints.SET_RESOLVE_CLIENT_SIDE_RESOLVE_SINGLE_COMPONENT, null);

	String executes = resolveExpressionsAsParameter(paramBuffer, AJAX_KEY_EXECUTE, commandScript.getExecute(),
	searchExpressionContext);
	String render = resolveExpressionsAsParameter(paramBuffer, AJAX_KEY_RENDER, commandScript.getRender(),
	searchExpressionContext);

	String onError = commandScript.getOnerror();
	if (StringUtils.isNotBlank(onError))
	{
	paramBuffer.setLength(0);
	paramBuffer.append(AJAX_KEY_ONERROR);
	paramBuffer.append(':');
	paramBuffer.append(onError);
	onError = paramBuffer.toString();
	}
	else
	{
	onError = null;
	}

	String onEvent = commandScript.getOnevent();
	if (StringUtils.isNotBlank(onEvent))
	{
	paramBuffer.setLength(0);
	paramBuffer.append(AJAX_KEY_ONEVENT);
	paramBuffer.append(':');
	paramBuffer.append(onEvent);
	onEvent = paramBuffer.toString();
	}
	else
	{
	onEvent = null;
	}

	String resetValues = null;
	if (Boolean.TRUE.equals(commandScript.getResetValues()))
	{
	paramBuffer.setLength(0);
	paramBuffer.append(AJAX_KEY_RESETVALUES);
	paramBuffer.append(':');
	paramBuffer.append("true");
	resetValues = paramBuffer.toString();
	}

	String sourceId = null;
	if (context.getSourceId() == null)
	{
	sourceId = AJAX_VAL_THIS;
	}
	else
	{
	paramBuffer.setLength(0);
	paramBuffer.append('\'');
	paramBuffer.append(context.getSourceId());
	paramBuffer.append('\'');
	sourceId = paramBuffer.toString();

	if (!context.getSourceId().trim().equals(
	context.getComponent().getClientId(context.getFacesContext())))
	{
	// Check if sourceId is not a clientId and there is no execute set
	UIComponent ref = context.getComponent();
	ref = (ref.getParent() == null) ? ref : ref.getParent();
	UIComponent instance = null;
	try
	{
	instance = ref.findComponent(context.getSourceId());
	}
	catch (IllegalArgumentException e)
	{
	// No Op
	}
	if (instance == null && executes == null)
	{
	// set the clientId of the component so the behavior can be decoded later,
	// otherwise the behavior will fail
	executes = resolveExpressionsAsParameter(paramBuffer, AJAX_KEY_EXECUTE,
	context.getComponent().getClientId(context.getFacesContext()), searchExpressionContext);
	}
	}
	}

	String event = context.getEventName();

	retVal.append(JS_AJAX_REQUEST);
	retVal.append('(');
	retVal.append(sourceId);
	retVal.append(",window.event,myfaces._impl._util._Lang.mixMaps(");

	Collection<ClientBehaviorContext.Parameter> params = context.getParameters();
	int paramSize = (params != null) ? params.size() : 0;

	List<String> parameterList = new ArrayList<>(paramSize + 2);
	if (executes != null)
	{
	parameterList.add(executes);
	}
	if (render != null)
	{
	parameterList.add(render);
	}
	if (onError != null)
	{
	parameterList.add(onError);
	}
	if (onEvent != null)
	{
	parameterList.add(onEvent);
	}
	if (resetValues != null)
	{
	parameterList.add(resetValues);
	}
	if (paramSize > 0)
	{
	/**
	* see ClientBehaviorContext.html of the spec
	* the param list has to be added in the post back
	*/
	// params are in 99% RamdonAccess instace created in
	// HtmlRendererUtils.getClientBehaviorContextParameters(Map<String, String>)
	if (params instanceof RandomAccess)
	{
	List<ClientBehaviorContext.Parameter> list = (List<ClientBehaviorContext.Parameter>) params;
	for (int i = 0, size = list.size(); i < size; i++)
	{
	ClientBehaviorContext.Parameter param = list.get(i);
	append(paramBuffer, parameterList, param.getName(), param.getValue());
	}
	}
	else
	{
	for (ClientBehaviorContext.Parameter param : params)
	{
	append(paramBuffer, parameterList, param.getName(), param.getValue());
	}
	}
	}

	List<UIParameter> uiParams = HtmlRendererUtils.getValidUIParameterChildren(
	facesContext, getChildren(commandScript), false, false);
	if (uiParams != null && uiParams.size() > 0)
	{
	for (int i = 0, size = uiParams.size(); i < size; i++)
	{
	UIParameter param = uiParams.get(i);
	append(paramBuffer, parameterList, param.getName(), param.getValue());
	}
	}

	paramBuffer.setLength(0);
	paramBuffer.append('\'');
	paramBuffer.append(ClientBehaviorContext.BEHAVIOR_EVENT_PARAM_NAME);
	paramBuffer.append("\':\'");
	paramBuffer.append(event);
	paramBuffer.append('\'');
	parameterList.add(paramBuffer.toString());

	/**
	* I assume here for now that the options are the same which also
	* can be sent via the options attribute to javax.faces.ajax
	* this still needs further clarifications but I assume so for now
	*/
	retVal.append(buildOptions(paramBuffer, parameterList));

	//mixMaps
	retVal.append(",o,false))");

	return retVal;
	}

	private void append(StringBuilder paramBuffer, List<String> parameterList, String paramName, Object paramValue)
	{
	//Both name and value should be quoted
	paramBuffer.setLength(0);
	paramBuffer.append('\'');
	paramBuffer.append(paramName);
	paramBuffer.append("\':\'");
	if (paramValue != null)
	{
	paramBuffer.append(paramValue.toString());
	}
	paramBuffer.append('\'');
	parameterList.add(paramBuffer.toString());
	}

	private StringBuilder buildOptions(StringBuilder retVal, List<String> options)
	{
	retVal.setLength(0);

	retVal.append('{');

	boolean first = true;

	for (int i = 0, size = options.size(); i < size; i++)
	{
	String option = options.get(i);
	if (StringUtils.isNotBlank(option))
	{
	if (!first)
	{
	retVal.append(',');
	}
	else
	{
	first = false;
	}
	retVal.append(option);
	}
	}
	retVal.append('}');
	return retVal;
	}

	private String resolveExpressionsAsParameter(StringBuilder retVal, String target, String expressions,
	SearchExpressionContext searchExpressionContext)
	{
	if (StringUtils.isNotBlank(expressions))
	{
	retVal.setLength(0);
	retVal.append(target);
	retVal.append(':');
	retVal.append('\'');

	SearchExpressionHandler handler =
	searchExpressionContext.getFacesContext().getApplication().getSearchExpressionHandler();
	List<String> clientIds =
	handler.resolveClientIds(searchExpressionContext, expressions);

	if (clientIds != null && !clientIds.isEmpty())
	{
	for (int i = 0; i < clientIds.size(); i++)
	{
	if (i > 0)
	{
	retVal.append(' ');
	}
	retVal.append(clientIds.get(i));
	}
	}

	retVal.append('\'');
	return retVal.toString();
	}

	return null;
	}
	}