/*
* 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.shared_tomahawk.renderkit.html;
import java.io.IOException;
import java.util.Map;
import javax.faces.component.UICommand;
import javax.faces.component.UIComponent;
import javax.faces.component.ValueHolder;
import javax.faces.component.html.HtmlCommandButton;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.event.ActionEvent;
import org.apache.myfaces.shared_tomahawk.config.MyfacesConfig;
import org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr;
import org.apache.myfaces.shared_tomahawk.renderkit.html.util.FormInfo;
import org.apache.myfaces.shared_tomahawk.renderkit.html.util.JavascriptUtils;
import org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils;
/**
* @author Manfred Geiler (latest modification by $Author: matzew $)
* @author Thomas Spiegl
* @author Anton Koinov
* @version $Revision: 478077 $ $Date: 2006-11-22 09:10:42 +0100 (Mi, 22 Nov 2006) $
*/
public class HtmlButtonRendererBase
extends HtmlRenderer {
private static final String IMAGE_BUTTON_SUFFIX_X = ".x";
private static final String IMAGE_BUTTON_SUFFIX_Y = ".y";
public static final String ACTION_FOR_LIST = "org.apache.myfaces.ActionForList";
public void decode(FacesContext facesContext, UIComponent uiComponent) {
org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.checkParamValidity(facesContext, uiComponent, UICommand.class);
//super.decode must not be called, because value is handled here
if (!isReset(uiComponent) && isSubmitted(facesContext, uiComponent)) {
uiComponent.queueEvent(new ActionEvent(uiComponent));
org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.initPartialValidationAndModelUpdate(uiComponent, facesContext);
}
}
private static boolean isReset(UIComponent uiComponent) {
return "reset".equalsIgnoreCase((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();
return paramMap.containsKey(clientId) || paramMap.containsKey(clientId + IMAGE_BUTTON_SUFFIX_X) || paramMap.containsKey(clientId + IMAGE_BUTTON_SUFFIX_Y);
}
public void encodeEnd(FacesContext facesContext, UIComponent uiComponent)
throws IOException {
org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.checkParamValidity(facesContext, uiComponent, UICommand.class);
String clientId = uiComponent.getClientId(facesContext);
ResponseWriter writer = facesContext.getResponseWriter();
writer.startElement(HTML.INPUT_ELEM, uiComponent);
writer.writeAttribute(HTML.ID_ATTR, clientId, org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr.ID_ATTR);
writer.writeAttribute(HTML.NAME_ATTR, clientId, JSFAttr.ID_ATTR);
String image = getImage(uiComponent);
ExternalContext externalContext = facesContext.getExternalContext();
if (image != null) {
writer.writeAttribute(HTML.TYPE_ATTR, HTML.INPUT_TYPE_IMAGE, org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr.TYPE_ATTR);
String src = facesContext.getApplication().getViewHandler().getResourceURL(
facesContext, image);
writer.writeURIAttribute(HTML.SRC_ATTR, externalContext.encodeResourceURL(src),
org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr.IMAGE_ATTR);
}
else {
String type = getType(uiComponent);
if (type == null) {
type = HTML.INPUT_TYPE_SUBMIT;
}
writer.writeAttribute(HTML.TYPE_ATTR, type, org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr.TYPE_ATTR);
Object value = getValue(uiComponent);
if (value != null) {
writer.writeAttribute(org.apache.myfaces.shared_tomahawk.renderkit.html.HTML.VALUE_ATTR, value, org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr.VALUE_ATTR);
}
}
if (JavascriptUtils.isJavascriptAllowed(externalContext)) {
StringBuffer onClick = buildOnClick(uiComponent, facesContext, writer);
writer.writeAttribute(HTML.ONCLICK_ATTR, onClick.toString(), null);
HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
HTML.BUTTON_PASSTHROUGH_ATTRIBUTES_WITHOUT_DISABLED_AND_ONCLICK);
}
else {
HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
HTML.BUTTON_PASSTHROUGH_ATTRIBUTES_WITHOUT_DISABLED);
}
if (isDisabled(facesContext, uiComponent)) {
writer.writeAttribute(HTML.DISABLED_ATTR, Boolean.TRUE, org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr.DISABLED_ATTR);
}
writer.endElement(HTML.INPUT_ELEM);
HtmlFormRendererBase.renderScrollHiddenInputIfNecessary(
findNestingForm(uiComponent, facesContext).getForm(), facesContext, writer);
}
protected StringBuffer buildOnClick(UIComponent uiComponent, FacesContext facesContext, ResponseWriter writer)
throws IOException {
FormInfo formInfo = findNestingForm(uiComponent, facesContext);
if (formInfo == null) {
throw new IllegalArgumentException("Component " + uiComponent.getClientId(facesContext) + " must be embedded in an form");
}
String formName = formInfo.getFormName();
UIComponent nestingForm = formInfo.getForm();
StringBuffer onClick = new StringBuffer();
String commandOnClick = (String) uiComponent.getAttributes().get(HTML.ONCLICK_ATTR);
if (commandOnClick != null) {
onClick.append(commandOnClick);
onClick.append(';');
}
//call the script to clear the form (clearFormHiddenParams_<formName>) method
HtmlRendererUtils.appendClearHiddenCommandFormParamsFunctionCall(onClick, formName);
if (MyfacesConfig.getCurrentInstance(facesContext.getExternalContext()).isAutoScroll()) {
HtmlRendererUtils.appendAutoScrollAssignment(onClick, formName);
}
//add hidden field for the case there is no commandLink in the form
String hiddenFieldName = HtmlRendererUtils.getHiddenCommandLinkFieldName(formInfo);
addHiddenCommandParameter(facesContext, nestingForm, hiddenFieldName);
//add hidden field for the case there is no commandLink in the form
String hiddenFieldNameMyFacesOld = HtmlRendererUtils.getHiddenCommandLinkFieldNameMyfacesOld(formInfo);
addHiddenCommandParameter(facesContext, nestingForm, hiddenFieldNameMyFacesOld);
return onClick;
}
protected void addHiddenCommandParameter(FacesContext facesContext, UIComponent nestingForm, String hiddenFieldName) {
if (nestingForm != null) {
HtmlFormRendererBase.addHiddenCommandParameter(facesContext, nestingForm, hiddenFieldName);
}
}
/**
* find nesting form<br />
* need to be overrideable to deal with dummyForm stuff in tomahawk.
*/
protected FormInfo findNestingForm(UIComponent uiComponent, FacesContext facesContext) {
return RendererUtils.findNestingForm(uiComponent, facesContext);
}
protected boolean isDisabled(FacesContext facesContext, UIComponent uiComponent) {
//TODO: overwrite in extended HtmlButtonRenderer and check for enabledOnUserRole
if (uiComponent instanceof HtmlCommandButton) {
return ((HtmlCommandButton) uiComponent).isDisabled();
}
else {
return org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.getBooleanAttribute(uiComponent, HTML.DISABLED_ATTR, false);
}
}
private String getImage(UIComponent uiComponent) {
if (uiComponent instanceof HtmlCommandButton) {
return ((HtmlCommandButton) uiComponent).getImage();
}
return (String) uiComponent.getAttributes().get(JSFAttr.IMAGE_ATTR);
}
private String getType(UIComponent uiComponent) {
if (uiComponent instanceof HtmlCommandButton) {
return ((HtmlCommandButton) uiComponent).getType();
}
return (String) uiComponent.getAttributes().get(org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr.TYPE_ATTR);
}
private Object getValue(UIComponent uiComponent) {
if (uiComponent instanceof ValueHolder) {
return ((ValueHolder) uiComponent).getValue();
}
return uiComponent.getAttributes().get(JSFAttr.VALUE_ATTR);
}
}