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/*
* Copyright 2009-2014 PrimeTek.
*
* Licensed 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.primefaces.renderkit;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.application.ConfigurableNavigationHandler;
import javax.faces.application.NavigationCase;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionListener;
import javax.faces.flow.FlowHandler;
import javax.faces.lifecycle.ClientWindow;
import org.primefaces.component.api.UIOutcomeTarget;
import org.primefaces.context.RequestContext;
public class OutcomeTargetRenderer extends CoreRenderer {
protected NavigationCase findNavigationCase(FacesContext context, UIOutcomeTarget outcomeTarget) {
ConfigurableNavigationHandler navigationHandler = (ConfigurableNavigationHandler) context.getApplication().getNavigationHandler();
String outcome = outcomeTarget.getOutcome();
if (outcome == null) {
outcome = context.getViewRoot().getViewId();
}
if (RequestContext.getCurrentInstance().getApplicationContext().getConfig().isAtLeastJSF22()) {
if (outcomeTarget instanceof UIComponent) {
String toFlowDocumentId = (String) ((UIComponent) outcomeTarget).getAttributes().get(ActionListener.TO_FLOW_DOCUMENT_ID_ATTR_NAME);
if (toFlowDocumentId != null) {
return navigationHandler.getNavigationCase(context, null, outcome, toFlowDocumentId);
}
}
}
return navigationHandler.getNavigationCase(context, null, outcome);
}
protected boolean isExpression(String text) {
return text.contains("#{") || text.contains("${");
}
protected boolean containsEL(List values) {
if (!values.isEmpty()) {
for (String value : values) {
if (isExpression(value))
return true;
}
}
return false;
}
protected List evaluateValueExpressions(FacesContext context, List values) {
// note that we have to create a new List here, because if we
// change any value on the given List, it will be changed in the
// NavigationCase too and the EL expression won't be evaluated again
List target = new ArrayList(values.size());
for (String value : values) {
if (isExpression(value)) {
// evaluate the ValueExpression
value = context.getApplication().evaluateExpressionGet(context, value, String.class);
}
target.add(value);
}
return target;
}
/**
* Find all parameters to include by looking at nested uiparams and params of navigation case
*/
protected Map> getParams(FacesContext context, NavigationCase navCase, UIOutcomeTarget outcomeTarget) {
//UI Params
Map> params = outcomeTarget.getParams();
//NavCase Params
Map> navCaseParams = navCase.getParameters();
if (navCaseParams != null && !navCaseParams.isEmpty()) {
if (params == null) {
params = new LinkedHashMap>();
}
for (Map.Entry> entry : navCaseParams.entrySet()) {
String key = entry.getKey();
//UIParams take precedence
if (!params.containsKey(key)) {
List values = entry.getValue();
if (containsEL(values)) {
params.put(key, evaluateValueExpressions(context, values));
} else {
params.put(key, values);
}
}
}
}
if (RequestContext.getCurrentInstance().getApplicationContext().getConfig().isAtLeastJSF22()) {
String toFlowDocumentId = navCase.getToFlowDocumentId();
if (toFlowDocumentId != null) {
if (params == null) {
params = new LinkedHashMap>();
}
List flowDocumentIdValues = new ArrayList();
flowDocumentIdValues.add(toFlowDocumentId);
params.put(FlowHandler.TO_FLOW_DOCUMENT_ID_REQUEST_PARAM_NAME, flowDocumentIdValues);
if (!FlowHandler.NULL_FLOW.equals(toFlowDocumentId)) {
List flowIdValues = new ArrayList();
flowIdValues.add(navCase.getFromOutcome());
params.put(FlowHandler.FLOW_ID_REQUEST_PARAM_NAME, flowIdValues);
}
}
}
return params;
}
protected boolean isIncludeViewParams(UIOutcomeTarget outcomeTarget, NavigationCase navCase) {
return outcomeTarget.isIncludeViewParams() || navCase.isIncludeViewParams();
}
protected String getTargetURL(FacesContext context, UIOutcomeTarget outcomeTarget) {
String url;
String href = outcomeTarget.getHref();
if (href != null) {
url = getResourceURL(context, href);
}
else {
NavigationCase navCase = findNavigationCase(context, outcomeTarget);
if (navCase == null) {
throw new FacesException("Could not resolve NavigationCase for outcome: " + outcomeTarget.getOutcome());
}
String toViewId = navCase.getToViewId(context);
boolean isIncludeViewParams = isIncludeViewParams(outcomeTarget, navCase);
Map> params = getParams(context, navCase, outcomeTarget);
if (params == null)
{
params = Collections.emptyMap();
}
boolean clientWindowRenderingModeEnabled = false;
Object clientWindow = null;
try {
if (RequestContext.getCurrentInstance().getApplicationContext().getConfig().isAtLeastJSF22() && outcomeTarget.isDisableClientWindow()) {
clientWindow = context.getExternalContext().getClientWindow();
if (clientWindow != null) {
clientWindowRenderingModeEnabled = ((ClientWindow) clientWindow).isClientWindowRenderModeEnabled(context);
if (clientWindowRenderingModeEnabled) {
((ClientWindow) clientWindow).disableClientWindowRenderMode(context);
}
}
}
url = context.getApplication().getViewHandler().getBookmarkableURL(context, toViewId, params, isIncludeViewParams);
} finally {
if (clientWindowRenderingModeEnabled && clientWindow != null) {
((ClientWindow) clientWindow).enableClientWindowRenderMode(context);
}
}
if (outcomeTarget.getFragment() != null) {
url += "#" + outcomeTarget.getFragment();
}
}
return url;
}
}