/** @author <a href="http://community.jboss.org/people/lfryc">Lukas Fryc</a> */
public class NotifyRendererUtils {
private static final RendererUtils UTILS = RendererUtils.getInstance();
public static String getStackId(FacesContext facesContext, UIComponent component) {
NotifyAttributes notify = (NotifyAttributes) component;
if (null == notify.getStack()) {
return null;
}
UIComponent stack = UTILS.findComponentFor(facesContext.getViewRoot(), notify.getStack());
if (stack instanceof AbstractNotifyStack) {
return stack.getClientId();
} else {
return null;
}
}
public static void addStackIdOption(
Map<String, Object> options, FacesContext facesContext, UIComponent component) {
String stackId = getStackId(facesContext, component);
if (stackId != null) {
options.put("stackId", stackId);
}
}
public static void addFacetOrAttributeAsOption(
String name, Map<String, Object> options, FacesContext facesContext, UIComponent component) {
UIComponent facet = component.getFacet(name);
if (facet != null && facet.isRendered()) {
ResponseWriter originalResponseWriter = facesContext.getResponseWriter();
try {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
PrintWriter printWriter = new PrintWriter(outputStream);
ResponseWriter newResponseWriter =
facesContext.getRenderKit().createResponseWriter(printWriter, null, null);
facesContext.setResponseWriter(newResponseWriter);
facet.encodeAll(facesContext);
printWriter.flush();
String value = new String(outputStream.toByteArray());
options.put(name, value);
} catch (IOException e) {
throw new FacesException(
"Can't encode facet '"
+ name
+ "' of component '"
+ component.getClass().getName()
+ "'",
e);
} finally {
facesContext.setResponseWriter(originalResponseWriter);
}
return;
}
Object attribute = component.getAttributes().get(name);
if (attribute != null) {
options.put(name, attribute.toString());
return;
}
}
}
/**
* @author Nick Belaevski
* @since 4.0
*/
public final class HandlersChain {
/** */
private static final RendererUtils RENDERER_UTILS = RendererUtils.getInstance();
// private static final Logger LOG = RichfacesLogger.RENDERKIT.getLogger();
private boolean hasSubmittingBehavior = false;
private boolean includeClientId = false;
// TODO: review for optimization
private List<String> handlers = new ArrayList<String>(2);
private FacesContext facesContext;
private UIComponent component;
private Collection<Parameter> parameters;
public HandlersChain(FacesContext facesContext, UIComponent component) {
this.facesContext = facesContext;
this.component = component;
}
public HandlersChain(FacesContext facesContext, UIComponent component, boolean includeClientId) {
this.facesContext = facesContext;
this.component = component;
this.includeClientId = includeClientId;
}
public HandlersChain(
FacesContext facesContext, UIComponent component, Collection<Parameter> parameters) {
this.facesContext = facesContext;
this.component = component;
this.parameters = parameters;
}
public HandlersChain(
FacesContext facesContext,
UIComponent component,
Collection<Parameter> parameters,
boolean includeClientId) {
this.facesContext = facesContext;
this.component = component;
this.parameters = parameters;
this.includeClientId = includeClientId;
}
private static boolean isNotEmpty(String s) {
return (s != null) && (s.length() != 0);
}
private List<ClientBehavior> getBehaviorsList(String behaviorName) {
List<ClientBehavior> behaviors = null;
if (component instanceof ClientBehaviorHolder) {
ClientBehaviorHolder clientBehaviorHolder = (ClientBehaviorHolder) component;
Map<String, List<ClientBehavior>> clientBehaviorsMap =
clientBehaviorHolder.getClientBehaviors();
if (clientBehaviorsMap != null) {
behaviors = clientBehaviorsMap.get(behaviorName);
}
}
return behaviors;
}
private Collection<Parameter> getParameters() {
if (parameters == null) {
Map<String, Object> parametersMap =
RENDERER_UTILS.createParametersMap(facesContext, component);
parameters = createParametersList(parametersMap);
}
return parameters;
}
public boolean hasSubmittingBehavior() {
return hasSubmittingBehavior;
}
public void addInlineHandlerAsValue(String handlerValue) {
if (isNotEmpty(handlerValue)) {
handlers.add(handlerValue);
}
}
public void addInlineHandlerFromAttribute(String attributeName) {
addInlineHandlerAsValue((String) component.getAttributes().get(attributeName));
}
public void addBehaviors(String domEventName) {
addBehaviors(domEventName, null);
}
public void addBehaviors(String domEventName, String logicalEventName) {
String name = domEventName;
List<ClientBehavior> behaviorsList = getBehaviorsList(domEventName);
if ((behaviorsList == null) && (logicalEventName != null)) {
behaviorsList = getBehaviorsList(logicalEventName);
name = logicalEventName;
}
if (behaviorsList == null) {
return;
}
ClientBehaviorContext behaviorContext =
ClientBehaviorContext.createClientBehaviorContext(
facesContext,
component,
name,
includeClientId ? component.getClientId(facesContext) : null,
getParameters());
for (ClientBehavior clientBehavior : behaviorsList) {
String behaviorScript = clientBehavior.getScript(behaviorContext);
if (isNotEmpty(behaviorScript)) {
if (clientBehavior.getHints().contains(ClientBehaviorHint.SUBMITTING)) {
hasSubmittingBehavior = true;
}
handlers.add(behaviorScript);
}
}
}
public void addAjaxSubmitFunction() {
if (!this.hasSubmittingBehavior()) {
hasSubmittingBehavior = true;
ScriptString ajaxFunction = buildAjaxFunction(facesContext, component);
this.addInlineHandlerAsValue(ajaxFunction.toScript());
}
}
public String toScript() {
String result = null;
if (!handlers.isEmpty()) {
if (handlers.size() == 1) {
result = handlers.get(0);
} else {
JSFunction jsFunction =
new JSFunction("jsf.util.chain", JSReference.THIS, JSReference.EVENT);
for (String handler : handlers) {
jsFunction.addParameter(handler);
}
result = jsFunction.toScript();
}
}
return result;
}
public static List<Parameter> createParametersList(Map<String, Object> parametersMap) {
List<Parameter> parameters = new ArrayList<Parameter>(parametersMap.size());
for (Entry<String, Object> entry : parametersMap.entrySet()) {
parameters.add(new Parameter(entry.getKey(), entry.getValue()));
}
return parameters;
}
}