impl/src/main/java/org/apache/myfaces/renderkit/html/base/HtmlButtonRendererBase.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.base;

 import org.apache.myfaces.renderkit.html.util.CommonPropertyUtils;
 import java.io.IOException;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;

 import javax.faces.component.UICommand;
 import javax.faces.component.UIComponent;
 import javax.faces.component.UIForm;
 import javax.faces.component.UIParameter;
 import javax.faces.component.ValueHolder;
 import javax.faces.component.behavior.ClientBehavior;
 import javax.faces.component.behavior.ClientBehaviorContext;
 import javax.faces.component.behavior.ClientBehaviorHolder;
 import javax.faces.component.html.HtmlCommandButton;
 import javax.faces.component.html.HtmlCommandLink;
 import javax.faces.context.FacesContext;
 import javax.faces.context.ResponseWriter;
 import javax.faces.event.ActionEvent;

 import org.apache.myfaces.renderkit.ClientBehaviorEvents;
 import org.apache.myfaces.renderkit.html.util.JSFAttr;
 import org.apache.myfaces.renderkit.RendererUtils;
 import org.apache.myfaces.renderkit.html.util.JavascriptUtils;
 import org.apache.myfaces.renderkit.html.util.ResourceUtils;
 import org.apache.myfaces.renderkit.html.util.HTML;
 import org.apache.myfaces.util.ComponentUtils;
 import org.apache.myfaces.util.SharedStringBuilder;

 public class HtmlButtonRendererBase extends HtmlRenderer
 {
     private static final String SB_BUILD_BEHAVIORIZED_ONCLICK = HtmlButtonRendererBase.class.getName()
             + "#buildBehaviorizedOnClick";
     private static final String SB_BUILD_ONCLICK = HtmlButtonRendererBase.class.getName()
             + "#buildOnClick";
     private static final String SB_ADD_CHILD_PARAMETERS = HtmlButtonRendererBase.class.getName() +
             "#addChildParameters";

     private static final String IMAGE_BUTTON_SUFFIX_X = ".x";
     private static final String IMAGE_BUTTON_SUFFIX_Y = ".y";

     @Override
     public void decode(FacesContext facesContext, UIComponent uiComponent)
     {
         RendererUtils.checkParamValidity(facesContext, uiComponent, UICommand.class);

         //super.decode must not be called, because value is handled here
         boolean disabled = isDisabled(facesContext, uiComponent);
         // MYFACES-3960 Decode, decode client behavior and queue action event at the end
         boolean activateActionEvent = !isReset(uiComponent) && isSubmitted(facesContext, uiComponent) && !disabled;

         if (uiComponent instanceof ClientBehaviorHolder &&
                 !disabled)
         {
             HtmlRendererUtils.decodeClientBehaviors(facesContext, uiComponent);
         }

         if (activateActionEvent)
         {
             uiComponent.queueEvent(new ActionEvent(uiComponent));
         }
     }

     private static boolean isReset(UIComponent uiComponent)
     {
         return "reset".equals((String) uiComponent.getAttributes().get(HTML.TYPE_ATTR));
     }

     private static boolean isButton(UIComponent uiComponent)
     {
         return "button".equals((String) uiComponent.getAttributes().get(HTML.TYPE_ATTR));
     }

     private static boolean isSubmitted(FacesContext facesContext, UIComponent uiComponent)
     {
         String clientId = uiComponent.getClientId(facesContext);
         Map paramMap = facesContext.getExternalContext().getRequestParameterMap();
         String hiddenLink = null;

         UIForm form = ComponentUtils.closest(UIForm.class, uiComponent);
         if (form != null)
         {
             hiddenLink = (String) facesContext.getExternalContext().getRequestParameterMap().get(
                 HtmlRendererUtils.getHiddenCommandLinkFieldName(form, facesContext));
         }
         return paramMap.containsKey(clientId) || paramMap.containsKey(clientId + IMAGE_BUTTON_SUFFIX_X)
             || paramMap.containsKey(clientId + IMAGE_BUTTON_SUFFIX_Y)
             || (hiddenLink != null && hiddenLink.equals (clientId))
             || HtmlRendererUtils.isPartialOrBehaviorSubmit(facesContext, clientId);
     }

     @Override
     public void encodeBegin(FacesContext facesContext, UIComponent uiComponent) throws IOException
     {
         RendererUtils.checkParamValidity(facesContext, uiComponent, UICommand.class);

         String clientId = uiComponent.getClientId(facesContext);

         ResponseWriter writer = facesContext.getResponseWriter();

         // commandButton does not need to be nested in a form since JSF 2.0
         UIForm form = ComponentUtils.closest(UIForm.class, uiComponent);

         boolean reset = isReset(uiComponent);
         boolean button = isButton(uiComponent);

         Map<String, List<ClientBehavior>> behaviors = null;
         if (uiComponent instanceof ClientBehaviorHolder)
         {
             behaviors = ((ClientBehaviorHolder) uiComponent).getClientBehaviors();
             if (!behaviors.isEmpty())
             {
                 ResourceUtils.renderDefaultJsfJsInlineIfNecessary(facesContext, writer);
             }
         }

         List<UIParameter> validParams = HtmlRendererUtils.getValidUIParameterChildren(
                 facesContext, getChildren(uiComponent), false, false);

         String commandOnclick = (String)uiComponent.getAttributes().get(HTML.ONCLICK_ATTR);

         if (commandOnclick != null && (validParams != null && !validParams.isEmpty()))
         {
             ResourceUtils.renderDefaultJsfJsInlineIfNecessary(facesContext, writer);
         }

         writer.startElement(HTML.INPUT_ELEM, uiComponent);

         writer.writeAttribute(HTML.ID_ATTR, clientId, JSFAttr.ID_ATTR);
         writer.writeAttribute(HTML.NAME_ATTR, clientId, JSFAttr.ID_ATTR);

         String image = RendererUtils.getIconSrc(facesContext, uiComponent, JSFAttr.IMAGE_ATTR);
         if (image != null)
         {
             writer.writeAttribute(HTML.TYPE_ATTR, HTML.INPUT_TYPE_IMAGE, JSFAttr.TYPE_ATTR);
             writer.writeURIAttribute(HTML.SRC_ATTR, image, JSFAttr.IMAGE_ATTR);
         }
         else
         {
             String type = getType(uiComponent);

             if (type == null || (!reset && !button))
             {
                 type = HTML.INPUT_TYPE_SUBMIT;
             }
             writer.writeAttribute(HTML.TYPE_ATTR, type, JSFAttr.TYPE_ATTR);
             Object value = getValue(uiComponent);
             if (value != null)
             {
                 writer.writeAttribute(HTML.VALUE_ATTR, value, JSFAttr.VALUE_ATTR);
             }
         }

         if (HtmlRendererUtils.hasClientBehavior(ClientBehaviorEvents.CLICK, behaviors, facesContext)
                 || HtmlRendererUtils.hasClientBehavior(ClientBehaviorEvents.ACTION, behaviors, facesContext))
         {
             if (!reset && !button)
             {
                 String onClick = buildBehaviorizedOnClick(uiComponent, behaviors, facesContext, writer,
                         form, validParams);
                 if (onClick.length() != 0)
                 {
                     writer.writeAttribute(HTML.ONCLICK_ATTR, onClick, null);
                 }
             }
             else
             {
                 Collection<ClientBehaviorContext.Parameter> paramList =
                     HtmlRendererUtils.getClientBehaviorContextParameters(
                         HtmlRendererUtils.mapAttachedParamsToStringValues(facesContext, uiComponent));

                 String onClick = HtmlRendererUtils.buildBehaviorChain(facesContext, uiComponent,
                         ClientBehaviorEvents.CLICK, paramList, ClientBehaviorEvents.ACTION, paramList, behaviors,
                         commandOnclick , null);
                 if (onClick.length() != 0)
                 {
                     writer.writeAttribute(HTML.ONCLICK_ATTR, onClick, null);
                 }
             }

             Map<String, Object> attributes = uiComponent.getAttributes();

             HtmlRendererUtils.buildBehaviorChain(facesContext, uiComponent, ClientBehaviorEvents.DBLCLICK, null,
                     behaviors, (String) attributes.get(HTML.ONDBLCLICK_ATTR), "");
         }
         else
         {
             //fallback into the pre 2.0 code to keep backwards compatibility with libraries which rely on internals
             if (!reset && !button)
             {
                 StringBuilder onClick = buildOnClick(uiComponent, facesContext, writer, validParams);
                 if (onClick.length() != 0)
                 {
                     writer.writeAttribute(HTML.ONCLICK_ATTR, onClick.toString(), null);
                 }
             }
             else
             {
                 HtmlRendererUtils.renderHTMLStringAttribute(writer, uiComponent, HTML.ONCLICK_ATTR, HTML.ONCLICK_ATTR);
             }
         }

         if (isCommonPropertiesOptimizationEnabled(facesContext))
         {
             CommonPropertyUtils.renderButtonPassthroughPropertiesWithoutDisabledAndEvents(writer,
                     CommonPropertyUtils.getCommonPropertiesMarked(uiComponent), uiComponent);
         }
         else
         {
             HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
                                                    HTML.BUTTON_PASSTHROUGH_ATTRIBUTES_WITHOUT_DISABLED_AND_EVENTS);
         }

         if (behaviors != null && !behaviors.isEmpty())
         {
             HtmlRendererUtils.renderBehaviorizedEventHandlersWithoutOnclick(
                     facesContext, writer, uiComponent, behaviors);
             HtmlRendererUtils.renderBehaviorizedFieldEventHandlers(facesContext, writer, uiComponent, behaviors);
         }
         else
         {
             if (isCommonPropertiesOptimizationEnabled(facesContext))
             {
                 long commonPropertiesMarked = CommonPropertyUtils.getCommonPropertiesMarked(uiComponent);
                 CommonPropertyUtils.renderEventPropertiesWithoutOnclick(writer, commonPropertiesMarked, uiComponent);
                 CommonPropertyUtils.renderCommonFieldEventProperties(writer, commonPropertiesMarked, uiComponent);
             }
             else
             {
                 HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
                         HTML.EVENT_HANDLER_ATTRIBUTES_WITHOUT_ONCLICK);
                 HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
                         HTML.COMMON_FIELD_EVENT_ATTRIBUTES);
             }
         }

         if (isDisabled(facesContext, uiComponent))
         {
             writer.writeAttribute(HTML.DISABLED_ATTR, Boolean.TRUE, JSFAttr.DISABLED_ATTR);
         }

         if (isReadonly(facesContext, uiComponent))
         {
             writer.writeAttribute(HTML.READONLY_ATTR, Boolean.TRUE, JSFAttr.READONLY_ATTR);
         }
     }

     @Override
     public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException
     {
         ResponseWriter writer = facesContext.getResponseWriter();

         writer.endElement(HTML.INPUT_ELEM);

         UIForm form = ComponentUtils.closest(UIForm.class, uiComponent);
         if (form != null)
         {
             HtmlFormRendererBase.renderScrollHiddenInputIfNecessary(form, facesContext, writer);
         }
     }

     protected String buildBehaviorizedOnClick(UIComponent uiComponent, Map<String, List<ClientBehavior>> behaviors,
                                               FacesContext facesContext, ResponseWriter writer,
                                               UIComponent form, List<UIParameter> validParams)
         throws IOException
     {
         StringBuilder sb = SharedStringBuilder.get(facesContext, SB_BUILD_BEHAVIORIZED_ONCLICK);

         //user onclick part
         String commandOnClick = (String) uiComponent.getAttributes().get(HTML.ONCLICK_ATTR);
         if (commandOnClick != null)
         {
             sb.append(commandOnClick);
             sb.append(';');
         }
         String userOnClick = sb.toString();

         // reset SB and reuse
         sb.setLength(0);

         if (form != null)
         {
             // There is no clean way to detect if a "submit" behavior has been added to the component,
             // so to keep things simple, if the button is submit type, it is responsibility of the
             // developer to add a client behavior that submit the form, for example using a f:ajax tag.
             // Otherwise, there will be a situation where a full submit could be trigger after an ajax
             // operation. Note we still need to append two scripts if necessary: autoscroll and clear
             // hidden fields, because this code is called for a submit button.
             //if (behaviors.isEmpty() && validParams != null && !validParams.isEmpty() )
             //{
             //    rendererOnClick.append(buildServerOnclick(facesContext, uiComponent,
             //            uiComponent.getClientId(facesContext), nestedFormInfo, validParams));
             //}
             //else
             //{
                 if (JavascriptUtils.isRenderClearJavascriptOnButton(facesContext.getExternalContext()))
                 {
                     //call the script to clear the form (clearFormHiddenParams_<formName>) method
                     HtmlRendererUtils.appendClearHiddenCommandFormParamsFunctionCall(sb,
                             form.getClientId(facesContext));
                 }
             //}
         }

         //according to the specification in jsf.util.chain jdocs and the spec document we have to use
         //jsf.util.chain to chain the functions and
         Collection<ClientBehaviorContext.Parameter> paramList = HtmlRendererUtils.getClientBehaviorContextParameters(
                 HtmlRendererUtils.mapAttachedParamsToStringValues(facesContext, uiComponent));

         return HtmlRendererUtils.buildBehaviorChain(facesContext, uiComponent,
                 ClientBehaviorEvents.CLICK, paramList, ClientBehaviorEvents.ACTION, paramList, behaviors,
                 userOnClick , sb.toString());
     }

     private StringBuilder addChildParameters(FacesContext context, List<UIParameter> validParams)
     {
         //add child parameters
         StringBuilder params = SharedStringBuilder.get(context, SB_ADD_CHILD_PARAMETERS);
         params.append('[');

         for (int i = 0, size = validParams.size(); i < size; i++)
         {
             UIParameter param = validParams.get(i);
             String name = param.getName();
             Object value = param.getValue();

             //UIParameter is no ValueHolder, so no conversion possible - calling .toString on value....
             // MYFACES-1832 bad charset encoding for f:param
             // if HTMLEncoder.encode is called, then
             // when is called on writer.writeAttribute, encode method
             // is called again so we have a duplicated encode call.
             // MYFACES-2726 All '\' and "'" chars must be escaped
             // because there will be inside "'" javascript quotes,
             // otherwise the value will not correctly restored when
             // the command is post.
             //String strParamValue = value != null ? value.toString() : "";
             String strParamValue = "";
             if (value != null)
             {
                 strParamValue = value.toString();
                 StringBuilder buff = null;
                 for (int j = 0; j < strParamValue.length(); j++)
                 {
                     char c = strParamValue.charAt(j);
                     if (c == '\'' || c == '\\')
                     {
                         if (buff == null)
                         {
                             buff = new StringBuilder();
                             buff.append(strParamValue.substring(0,j));
                         }
                         buff.append('\\');
                         buff.append(c);
                     }
                     else if (buff != null)
                     {
                         buff.append(c);
                     }
                 }
                 if (buff != null)
                 {
                     strParamValue = buff.toString();
                 }
             }

             if (params.length() > 1)
             {
                 params.append(',');
             }

             params.append("['");
             params.append(name);
             params.append("','");
             params.append(strParamValue);
             params.append("']");
         }
         params.append(']');
         return params;
     }

     private String getTarget(UIComponent component)
     {
         // for performance reason: double check for the target attribute
         String target;
         if (component instanceof HtmlCommandLink)
         {
             target = ((HtmlCommandLink) component).getTarget();
         }
         else
         {
             target = (String) component.getAttributes().get(HTML.TARGET_ATTR);
         }
         return target;
     }

     protected StringBuilder buildOnClick(UIComponent uiComponent, FacesContext facesContext,
                                         ResponseWriter writer, List<UIParameter> validParams)
         throws IOException
     {
         StringBuilder onClick = SharedStringBuilder.get(facesContext, SB_BUILD_ONCLICK);
         String commandOnClick = (String) uiComponent.getAttributes().get(HTML.ONCLICK_ATTR);

         if (commandOnClick != null)
         {
             onClick.append("var cf = function(){");
             onClick.append(commandOnClick);
             onClick.append('}');
             onClick.append(';');
             onClick.append("var oamSF = function(){");
         }

         UIForm form = ComponentUtils.closest(UIForm.class, uiComponent);
         if (form != null)
         {
             if (validParams != null && !validParams.isEmpty() )
             {
                 StringBuilder params = addChildParameters(facesContext, validParams);

                 String target = getTarget(uiComponent);

                 onClick.append("return ").
                     append(HtmlRendererUtils.SUBMIT_FORM_FN_NAME_JSF2).append("('").
                     append(form.getClientId(facesContext)).append("','").
                     append(uiComponent.getClientId(facesContext)).append('\'');

                 if (params.length() > 2 || target != null)
                 {
                     onClick.append(',').
                         append(target == null ? "null" : ('\'' + target + '\'')).append(',').
                         append(params);
                 }
                 onClick.append(");");
             }
             else
             {

                 if (JavascriptUtils.isRenderClearJavascriptOnButton(facesContext.getExternalContext()))
                 {
                     //call the script to clear the form (clearFormHiddenParams_<formName>) method
                     HtmlRendererUtils.appendClearHiddenCommandFormParamsFunctionCall(onClick,
                             form.getClientId(facesContext));
                 }
             }
         }

         if (commandOnClick != null)
         {
             onClick.append('}');
             onClick.append(';');
             onClick.append("return (cf.apply(this, [])==false)? false : oamSF.apply(this, []); ");
         }

         return onClick;
     }


     protected boolean isDisabled(FacesContext facesContext, UIComponent uiComponent)
     {
         if (uiComponent instanceof HtmlCommandButton)
         {
             return ((HtmlCommandButton) uiComponent).isDisabled();
         }

         return RendererUtils.getBooleanAttribute(uiComponent, HTML.DISABLED_ATTR, false);
     }

     protected boolean isReadonly(FacesContext facesContext, UIComponent uiComponent)
     {
         if (uiComponent instanceof HtmlCommandButton)
         {
             return ((HtmlCommandButton)uiComponent).isReadonly();
         }
         return RendererUtils.getBooleanAttribute(
                 uiComponent, HTML.READONLY_ATTR, false);
     }

     private String getType(UIComponent uiComponent)
     {
         if (uiComponent instanceof HtmlCommandButton)
         {
             return ((HtmlCommandButton)uiComponent).getType();
         }
         return (String)uiComponent.getAttributes().get(JSFAttr.TYPE_ATTR);
     }

     private Object getValue(UIComponent uiComponent)
     {
         if (uiComponent instanceof ValueHolder)
         {
             return ((ValueHolder)uiComponent).getValue();
         }
         return uiComponent.getAttributes().get(JSFAttr.VALUE_ATTR);
     }
 }
	/*
	* 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.base;

	import org.apache.myfaces.renderkit.html.util.CommonPropertyUtils;
	import java.io.IOException;
	import java.util.Collection;
	import java.util.List;
	import java.util.Map;

	import javax.faces.component.UICommand;
	import javax.faces.component.UIComponent;
	import javax.faces.component.UIForm;
	import javax.faces.component.UIParameter;
	import javax.faces.component.ValueHolder;
	import javax.faces.component.behavior.ClientBehavior;
	import javax.faces.component.behavior.ClientBehaviorContext;
	import javax.faces.component.behavior.ClientBehaviorHolder;
	import javax.faces.component.html.HtmlCommandButton;
	import javax.faces.component.html.HtmlCommandLink;
	import javax.faces.context.FacesContext;
	import javax.faces.context.ResponseWriter;
	import javax.faces.event.ActionEvent;

	import org.apache.myfaces.renderkit.ClientBehaviorEvents;
	import org.apache.myfaces.renderkit.html.util.JSFAttr;
	import org.apache.myfaces.renderkit.RendererUtils;
	import org.apache.myfaces.renderkit.html.util.JavascriptUtils;
	import org.apache.myfaces.renderkit.html.util.ResourceUtils;
	import org.apache.myfaces.renderkit.html.util.HTML;
	import org.apache.myfaces.util.ComponentUtils;
	import org.apache.myfaces.util.SharedStringBuilder;

	public class HtmlButtonRendererBase extends HtmlRenderer
	{
	private static final String SB_BUILD_BEHAVIORIZED_ONCLICK = HtmlButtonRendererBase.class.getName()
	+ "#buildBehaviorizedOnClick";
	private static final String SB_BUILD_ONCLICK = HtmlButtonRendererBase.class.getName()
	+ "#buildOnClick";
	private static final String SB_ADD_CHILD_PARAMETERS = HtmlButtonRendererBase.class.getName() +
	"#addChildParameters";

	private static final String IMAGE_BUTTON_SUFFIX_X = ".x";
	private static final String IMAGE_BUTTON_SUFFIX_Y = ".y";

	@Override
	public void decode(FacesContext facesContext, UIComponent uiComponent)
	{
	RendererUtils.checkParamValidity(facesContext, uiComponent, UICommand.class);

	//super.decode must not be called, because value is handled here
	boolean disabled = isDisabled(facesContext, uiComponent);
	// MYFACES-3960 Decode, decode client behavior and queue action event at the end
	boolean activateActionEvent = !isReset(uiComponent) && isSubmitted(facesContext, uiComponent) && !disabled;

	if (uiComponent instanceof ClientBehaviorHolder &&
	!disabled)
	{
	HtmlRendererUtils.decodeClientBehaviors(facesContext, uiComponent);
	}

	if (activateActionEvent)
	{
	uiComponent.queueEvent(new ActionEvent(uiComponent));
	}
	}

	private static boolean isReset(UIComponent uiComponent)
	{
	return "reset".equals((String) uiComponent.getAttributes().get(HTML.TYPE_ATTR));
	}

	private static boolean isButton(UIComponent uiComponent)
	{
	return "button".equals((String) uiComponent.getAttributes().get(HTML.TYPE_ATTR));
	}

	private static boolean isSubmitted(FacesContext facesContext, UIComponent uiComponent)
	{
	String clientId = uiComponent.getClientId(facesContext);
	Map paramMap = facesContext.getExternalContext().getRequestParameterMap();
	String hiddenLink = null;

	UIForm form = ComponentUtils.closest(UIForm.class, uiComponent);
	if (form != null)
	{
	hiddenLink = (String) facesContext.getExternalContext().getRequestParameterMap().get(
	HtmlRendererUtils.getHiddenCommandLinkFieldName(form, facesContext));
	}
	return paramMap.containsKey(clientId) \|\| paramMap.containsKey(clientId + IMAGE_BUTTON_SUFFIX_X)
	\|\| paramMap.containsKey(clientId + IMAGE_BUTTON_SUFFIX_Y)
	\|\| (hiddenLink != null && hiddenLink.equals (clientId))
	\|\| HtmlRendererUtils.isPartialOrBehaviorSubmit(facesContext, clientId);
	}

	@Override
	public void encodeBegin(FacesContext facesContext, UIComponent uiComponent) throws IOException
	{
	RendererUtils.checkParamValidity(facesContext, uiComponent, UICommand.class);

	String clientId = uiComponent.getClientId(facesContext);

	ResponseWriter writer = facesContext.getResponseWriter();

	// commandButton does not need to be nested in a form since JSF 2.0
	UIForm form = ComponentUtils.closest(UIForm.class, uiComponent);

	boolean reset = isReset(uiComponent);
	boolean button = isButton(uiComponent);

	Map<String, List<ClientBehavior>> behaviors = null;
	if (uiComponent instanceof ClientBehaviorHolder)
	{
	behaviors = ((ClientBehaviorHolder) uiComponent).getClientBehaviors();
	if (!behaviors.isEmpty())
	{
	ResourceUtils.renderDefaultJsfJsInlineIfNecessary(facesContext, writer);
	}
	}

	List<UIParameter> validParams = HtmlRendererUtils.getValidUIParameterChildren(
	facesContext, getChildren(uiComponent), false, false);

	String commandOnclick = (String)uiComponent.getAttributes().get(HTML.ONCLICK_ATTR);

	if (commandOnclick != null && (validParams != null && !validParams.isEmpty()))
	{
	ResourceUtils.renderDefaultJsfJsInlineIfNecessary(facesContext, writer);
	}

	writer.startElement(HTML.INPUT_ELEM, uiComponent);

	writer.writeAttribute(HTML.ID_ATTR, clientId, JSFAttr.ID_ATTR);
	writer.writeAttribute(HTML.NAME_ATTR, clientId, JSFAttr.ID_ATTR);

	String image = RendererUtils.getIconSrc(facesContext, uiComponent, JSFAttr.IMAGE_ATTR);
	if (image != null)
	{
	writer.writeAttribute(HTML.TYPE_ATTR, HTML.INPUT_TYPE_IMAGE, JSFAttr.TYPE_ATTR);
	writer.writeURIAttribute(HTML.SRC_ATTR, image, JSFAttr.IMAGE_ATTR);
	}
	else
	{
	String type = getType(uiComponent);

	if (type == null \|\| (!reset && !button))
	{
	type = HTML.INPUT_TYPE_SUBMIT;
	}
	writer.writeAttribute(HTML.TYPE_ATTR, type, JSFAttr.TYPE_ATTR);
	Object value = getValue(uiComponent);
	if (value != null)
	{
	writer.writeAttribute(HTML.VALUE_ATTR, value, JSFAttr.VALUE_ATTR);
	}
	}

	if (HtmlRendererUtils.hasClientBehavior(ClientBehaviorEvents.CLICK, behaviors, facesContext)
	\|\| HtmlRendererUtils.hasClientBehavior(ClientBehaviorEvents.ACTION, behaviors, facesContext))
	{
	if (!reset && !button)
	{
	String onClick = buildBehaviorizedOnClick(uiComponent, behaviors, facesContext, writer,
	form, validParams);
	if (onClick.length() != 0)
	{
	writer.writeAttribute(HTML.ONCLICK_ATTR, onClick, null);
	}
	}
	else
	{
	Collection<ClientBehaviorContext.Parameter> paramList =
	HtmlRendererUtils.getClientBehaviorContextParameters(
	HtmlRendererUtils.mapAttachedParamsToStringValues(facesContext, uiComponent));

	String onClick = HtmlRendererUtils.buildBehaviorChain(facesContext, uiComponent,
	ClientBehaviorEvents.CLICK, paramList, ClientBehaviorEvents.ACTION, paramList, behaviors,
	commandOnclick , null);
	if (onClick.length() != 0)
	{
	writer.writeAttribute(HTML.ONCLICK_ATTR, onClick, null);
	}
	}

	Map<String, Object> attributes = uiComponent.getAttributes();

	HtmlRendererUtils.buildBehaviorChain(facesContext, uiComponent, ClientBehaviorEvents.DBLCLICK, null,
	behaviors, (String) attributes.get(HTML.ONDBLCLICK_ATTR), "");
	}
	else
	{
	//fallback into the pre 2.0 code to keep backwards compatibility with libraries which rely on internals
	if (!reset && !button)
	{
	StringBuilder onClick = buildOnClick(uiComponent, facesContext, writer, validParams);
	if (onClick.length() != 0)
	{
	writer.writeAttribute(HTML.ONCLICK_ATTR, onClick.toString(), null);
	}
	}
	else
	{
	HtmlRendererUtils.renderHTMLStringAttribute(writer, uiComponent, HTML.ONCLICK_ATTR, HTML.ONCLICK_ATTR);
	}
	}

	if (isCommonPropertiesOptimizationEnabled(facesContext))
	{
	CommonPropertyUtils.renderButtonPassthroughPropertiesWithoutDisabledAndEvents(writer,
	CommonPropertyUtils.getCommonPropertiesMarked(uiComponent), uiComponent);
	}
	else
	{
	HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
	HTML.BUTTON_PASSTHROUGH_ATTRIBUTES_WITHOUT_DISABLED_AND_EVENTS);
	}

	if (behaviors != null && !behaviors.isEmpty())
	{
	HtmlRendererUtils.renderBehaviorizedEventHandlersWithoutOnclick(
	facesContext, writer, uiComponent, behaviors);
	HtmlRendererUtils.renderBehaviorizedFieldEventHandlers(facesContext, writer, uiComponent, behaviors);
	}
	else
	{
	if (isCommonPropertiesOptimizationEnabled(facesContext))
	{
	long commonPropertiesMarked = CommonPropertyUtils.getCommonPropertiesMarked(uiComponent);
	CommonPropertyUtils.renderEventPropertiesWithoutOnclick(writer, commonPropertiesMarked, uiComponent);
	CommonPropertyUtils.renderCommonFieldEventProperties(writer, commonPropertiesMarked, uiComponent);
	}
	else
	{
	HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
	HTML.EVENT_HANDLER_ATTRIBUTES_WITHOUT_ONCLICK);
	HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
	HTML.COMMON_FIELD_EVENT_ATTRIBUTES);
	}
	}

	if (isDisabled(facesContext, uiComponent))
	{
	writer.writeAttribute(HTML.DISABLED_ATTR, Boolean.TRUE, JSFAttr.DISABLED_ATTR);
	}

	if (isReadonly(facesContext, uiComponent))
	{
	writer.writeAttribute(HTML.READONLY_ATTR, Boolean.TRUE, JSFAttr.READONLY_ATTR);
	}
	}

	@Override
	public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException
	{
	ResponseWriter writer = facesContext.getResponseWriter();

	writer.endElement(HTML.INPUT_ELEM);

	UIForm form = ComponentUtils.closest(UIForm.class, uiComponent);
	if (form != null)
	{
	HtmlFormRendererBase.renderScrollHiddenInputIfNecessary(form, facesContext, writer);
	}
	}

	protected String buildBehaviorizedOnClick(UIComponent uiComponent, Map<String, List<ClientBehavior>> behaviors,
	FacesContext facesContext, ResponseWriter writer,
	UIComponent form, List<UIParameter> validParams)
	throws IOException
	{
	StringBuilder sb = SharedStringBuilder.get(facesContext, SB_BUILD_BEHAVIORIZED_ONCLICK);

	//user onclick part
	String commandOnClick = (String) uiComponent.getAttributes().get(HTML.ONCLICK_ATTR);
	if (commandOnClick != null)
	{
	sb.append(commandOnClick);
	sb.append(';');
	}
	String userOnClick = sb.toString();

	// reset SB and reuse
	sb.setLength(0);

	if (form != null)
	{
	// There is no clean way to detect if a "submit" behavior has been added to the component,
	// so to keep things simple, if the button is submit type, it is responsibility of the
	// developer to add a client behavior that submit the form, for example using a f:ajax tag.
	// Otherwise, there will be a situation where a full submit could be trigger after an ajax
	// operation. Note we still need to append two scripts if necessary: autoscroll and clear
	// hidden fields, because this code is called for a submit button.
	//if (behaviors.isEmpty() && validParams != null && !validParams.isEmpty() )
	//{
	// rendererOnClick.append(buildServerOnclick(facesContext, uiComponent,
	// uiComponent.getClientId(facesContext), nestedFormInfo, validParams));
	//}
	//else
	//{
	if (JavascriptUtils.isRenderClearJavascriptOnButton(facesContext.getExternalContext()))
	{
	//call the script to clear the form (clearFormHiddenParams_<formName>) method
	HtmlRendererUtils.appendClearHiddenCommandFormParamsFunctionCall(sb,
	form.getClientId(facesContext));
	}
	//}
	}

	//according to the specification in jsf.util.chain jdocs and the spec document we have to use
	//jsf.util.chain to chain the functions and
	Collection<ClientBehaviorContext.Parameter> paramList = HtmlRendererUtils.getClientBehaviorContextParameters(
	HtmlRendererUtils.mapAttachedParamsToStringValues(facesContext, uiComponent));

	return HtmlRendererUtils.buildBehaviorChain(facesContext, uiComponent,
	ClientBehaviorEvents.CLICK, paramList, ClientBehaviorEvents.ACTION, paramList, behaviors,
	userOnClick , sb.toString());
	}

	private StringBuilder addChildParameters(FacesContext context, List<UIParameter> validParams)
	{
	//add child parameters
	StringBuilder params = SharedStringBuilder.get(context, SB_ADD_CHILD_PARAMETERS);
	params.append('[');

	for (int i = 0, size = validParams.size(); i < size; i++)
	{
	UIParameter param = validParams.get(i);
	String name = param.getName();
	Object value = param.getValue();

	//UIParameter is no ValueHolder, so no conversion possible - calling .toString on value....
	// MYFACES-1832 bad charset encoding for f:param
	// if HTMLEncoder.encode is called, then
	// when is called on writer.writeAttribute, encode method
	// is called again so we have a duplicated encode call.
	// MYFACES-2726 All '\' and "'" chars must be escaped
	// because there will be inside "'" javascript quotes,
	// otherwise the value will not correctly restored when
	// the command is post.
	//String strParamValue = value != null ? value.toString() : "";
	String strParamValue = "";
	if (value != null)
	{
	strParamValue = value.toString();
	StringBuilder buff = null;
	for (int j = 0; j < strParamValue.length(); j++)
	{
	char c = strParamValue.charAt(j);
	if (c == '\'' \|\| c == '\\')
	{
	if (buff == null)
	{
	buff = new StringBuilder();
	buff.append(strParamValue.substring(0,j));
	}
	buff.append('\\');
	buff.append(c);
	}
	else if (buff != null)
	{
	buff.append(c);
	}
	}
	if (buff != null)
	{
	strParamValue = buff.toString();
	}
	}

	if (params.length() > 1)
	{
	params.append(',');
	}

	params.append("['");
	params.append(name);
	params.append("','");
	params.append(strParamValue);
	params.append("']");
	}
	params.append(']');
	return params;
	}

	private String getTarget(UIComponent component)
	{
	// for performance reason: double check for the target attribute
	String target;
	if (component instanceof HtmlCommandLink)
	{
	target = ((HtmlCommandLink) component).getTarget();
	}
	else
	{
	target = (String) component.getAttributes().get(HTML.TARGET_ATTR);
	}
	return target;
	}

	protected StringBuilder buildOnClick(UIComponent uiComponent, FacesContext facesContext,
	ResponseWriter writer, List<UIParameter> validParams)
	throws IOException
	{
	StringBuilder onClick = SharedStringBuilder.get(facesContext, SB_BUILD_ONCLICK);
	String commandOnClick = (String) uiComponent.getAttributes().get(HTML.ONCLICK_ATTR);

	if (commandOnClick != null)
	{
	onClick.append("var cf = function(){");
	onClick.append(commandOnClick);
	onClick.append('}');
	onClick.append(';');
	onClick.append("var oamSF = function(){");
	}

	UIForm form = ComponentUtils.closest(UIForm.class, uiComponent);
	if (form != null)
	{
	if (validParams != null && !validParams.isEmpty() )
	{
	StringBuilder params = addChildParameters(facesContext, validParams);

	String target = getTarget(uiComponent);

	onClick.append("return ").
	append(HtmlRendererUtils.SUBMIT_FORM_FN_NAME_JSF2).append("('").
	append(form.getClientId(facesContext)).append("','").
	append(uiComponent.getClientId(facesContext)).append('\'');

	if (params.length() > 2 \|\| target != null)
	{
	onClick.append(',').
	append(target == null ? "null" : ('\'' + target + '\'')).append(',').
	append(params);
	}
	onClick.append(");");
	}
	else
	{

	if (JavascriptUtils.isRenderClearJavascriptOnButton(facesContext.getExternalContext()))
	{
	//call the script to clear the form (clearFormHiddenParams_<formName>) method
	HtmlRendererUtils.appendClearHiddenCommandFormParamsFunctionCall(onClick,
	form.getClientId(facesContext));
	}
	}
	}

	if (commandOnClick != null)
	{
	onClick.append('}');
	onClick.append(';');
	onClick.append("return (cf.apply(this, [])==false)? false : oamSF.apply(this, []); ");
	}

	return onClick;
	}


	protected boolean isDisabled(FacesContext facesContext, UIComponent uiComponent)
	{
	if (uiComponent instanceof HtmlCommandButton)
	{
	return ((HtmlCommandButton) uiComponent).isDisabled();
	}

	return RendererUtils.getBooleanAttribute(uiComponent, HTML.DISABLED_ATTR, false);
	}

	protected boolean isReadonly(FacesContext facesContext, UIComponent uiComponent)
	{
	if (uiComponent instanceof HtmlCommandButton)
	{
	return ((HtmlCommandButton)uiComponent).isReadonly();
	}
	return RendererUtils.getBooleanAttribute(
	uiComponent, HTML.READONLY_ATTR, false);
	}

	private String getType(UIComponent uiComponent)
	{
	if (uiComponent instanceof HtmlCommandButton)
	{
	return ((HtmlCommandButton)uiComponent).getType();
	}
	return (String)uiComponent.getAttributes().get(JSFAttr.TYPE_ATTR);
	}

	private Object getValue(UIComponent uiComponent)
	{
	if (uiComponent instanceof ValueHolder)
	{
	return ((ValueHolder)uiComponent).getValue();
	}
	return uiComponent.getAttributes().get(JSFAttr.VALUE_ATTR);
	}
	}