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* 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.
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package org.apache.myfaces.tobago.renderkit.html.util;
import org.apache.commons.lang.StringUtils;
import org.apache.myfaces.tobago.component.Attributes;
import org.apache.myfaces.tobago.component.Facets;
import org.apache.myfaces.tobago.component.UIPopup;
import org.apache.myfaces.tobago.context.ResourceManagerUtils;
import org.apache.myfaces.tobago.event.PopupFacetActionListener;
import org.apache.myfaces.tobago.internal.component.AbstractUICommandBase;
import org.apache.myfaces.tobago.util.ComponentUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.faces.application.Application;
import javax.faces.application.ViewHandler;
import javax.faces.component.UIComponent;
import javax.faces.component.UIParameter;
import javax.faces.component.ValueHolder;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import java.net.URLDecoder;
import java.util.Arrays;
import java.util.List;
public class CommandRendererHelper {
private static final Logger LOG = LoggerFactory.getLogger(CommandRendererHelper.class);
private String onclick;
private boolean disabled;
private String href;
private String target;
public CommandRendererHelper(FacesContext facesContext, AbstractUICommandBase command) {
this(facesContext, command, null);
}
public CommandRendererHelper(FacesContext facesContext, AbstractUICommandBase command, Tag tag) {
disabled = ComponentUtils.getBooleanAttribute(command, Attributes.DISABLED);
if (disabled) {
onclick = "";
href = "";
} else {
href = "#"; // this is to make the link "active", needed for focus, cursor, etc.
UIPopup popup = (UIPopup) command.getFacet(Facets.POPUP);
if (popup != null) {
if (!ComponentUtils.containsPopupActionListener(command)) {
command.addActionListener(new PopupFacetActionListener());
}
}
boolean defaultCommand = ComponentUtils.getBooleanAttribute(command, Attributes.DEFAULT_COMMAND);
boolean transition = ComponentUtils.getBooleanAttribute(command, Attributes.TRANSITION);
if (StringUtils.isNotEmpty(command.getLink()) || StringUtils.isNotEmpty(command.getResource())) {
String url = generateUrl(facesContext, command);
if (tag == Tag.ANCHOR) {
onclick = null;
href = url;
target = command.getTarget();
} else {
// TODO target
onclick = "Tobago.navigateToUrl('" + url + "');";
}
} else if (StringUtils.isNotEmpty(command.getOnclick())) {
onclick = prepareOnClick(facesContext, command);
} else if (command.getRenderedPartially().length > 0) {
String clientId = command.getClientId(facesContext);
String[] componentIds = command.getRenderedPartially();
// TODO find a better way
boolean popupAction = ComponentUtils.containsPopupActionListener(command);
if (popupAction) {
if (componentIds.length != 1) {
LOG.warn("more than one partially rendered component is not supported for popup! using first one: "
+ Arrays.toString(componentIds));
}
onclick = "Tobago.Popup.openWithAction(this, '"
+ HtmlRendererUtils.getComponentId(facesContext, command, componentIds[0]) + "', '" + clientId + "');";
} else {
onclick = "Tobago.reloadComponent(this, '"
+ HtmlRendererUtils.getComponentIds(facesContext, command, componentIds) + "','" + clientId + "', {});";
}
} else if (defaultCommand) {
String clientId = command.getClientId(facesContext);
ComponentUtils.findPage(facesContext, command).setDefaultActionId(clientId);
onclick = null;
} else {
String clientId = command.getClientId(facesContext);
String target = ComponentUtils.getStringAttribute(command, Attributes.TARGET);
onclick = HtmlRendererUtils.createSubmitAction(clientId, transition, target, null);
}
if (command.getAttributes().get(Attributes.POPUP_CLOSE) != null
&& ComponentUtils.isInPopup(command)) {
String value = (String) command.getAttributes().get(Attributes.POPUP_CLOSE);
if (value.equals("immediate")) {
onclick = "Tobago.Popup.close(this);";
} else if (value.equals("afterSubmit")
&& command instanceof org.apache.myfaces.tobago.component.UICommand
&& ((org.apache.myfaces.tobago.component.UICommand) command).getRenderedPartially().length > 0) {
onclick = "Tobago.Popup.unlockBehind();" + onclick + "Tobago.Popup.close(this);";
}
}
onclick = appendConfirmationScript(onclick, command);
}
}
private String prepareOnClick(FacesContext facesContext, AbstractUICommandBase component) {
String onclick = component.getOnclick();
if (onclick.contains("@autoId")) {
onclick = StringUtils.replace(onclick, "@autoId", component.getClientId(facesContext));
}
return onclick;
}
private String appendConfirmationScript(String onclick, UIComponent component) {
ValueHolder confirmation = (ValueHolder) component.getFacet(Facets.CONFIRMATION);
if (confirmation != null) {
StringBuilder script = new StringBuilder("return confirm('");
script.append(confirmation.getValue());
script.append("')");
if (onclick != null) {
script.append(" && ");
script.append(onclick);
}
onclick = script.toString();
}
return onclick;
}
private String generateUrl(FacesContext facesContext, AbstractUICommandBase component) {
String url;
Application application = facesContext.getApplication();
ViewHandler viewHandler = application.getViewHandler();
ExternalContext externalContext = facesContext.getExternalContext();
if (component.getResource() != null) {
boolean jsfResource = component.isJsfResource();
url = ResourceManagerUtils.getPageWithoutContextPath(facesContext, component.getResource());
if (url != null) {
if (jsfResource) {
url = viewHandler.getActionURL(facesContext, url);
url = externalContext.encodeActionURL(url);
} else {
url = viewHandler.getResourceURL(facesContext, url);
url = externalContext.encodeResourceURL(url);
}
} else {
url = "";
}
} else if (component.getLink() != null) {
final String link = component.getLink();
if (link.startsWith("/")) { // internal absolute link
url = externalContext.encodeResourceURL(externalContext.getRequestContextPath() + link);
} else if (org.apache.myfaces.tobago.internal.util.StringUtils.isUrl(link)) { // external link
url = link;
} else { // internal relative link
url = externalContext.encodeResourceURL(link);
}
StringBuilder builder = new StringBuilder(url);
boolean firstParameter = !url.contains("?");
for (UIComponent child : (List<UIComponent>) component.getChildren()) {
if (child instanceof UIParameter) {
UIParameter parameter = (UIParameter) child;
if (firstParameter) {
builder.append("?");
firstParameter = false;
} else {
builder.append("&");
}
builder.append(parameter.getName());
builder.append("=");
Object value = parameter.getValue();
// TODO encoding
builder.append(value != null ? URLDecoder.decode(value.toString()) : null);
}
}
url = builder.toString();
} else {
throw new AssertionError("Needed " + Attributes.LINK + " or " + Attributes.RESOURCE);
}
return url;
}
public String getOnclick() {
return onclick;
}
public boolean isDisabled() {
return disabled;
}
public String getHref() {
return href;
}
public String getTarget() {
return target;
}
public static enum Tag {
ANCHOR, BUTTON
}
}