org.primefaces.application.DialogKeepFlashPhaseListener Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright (c) 2009-2023 PrimeTek Informatics
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.primefaces.application;
import org.primefaces.util.Constants;
import org.primefaces.util.LangUtils;
import javax.faces.context.FacesContext;
import javax.faces.context.Flash;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
/**
* Keeps objects within Flash during opening a Dialog Framework - dialog and so allows passing objects via Flash to a Dialog Framework - dialog.
*/
public class DialogKeepFlashPhaseListener implements PhaseListener {
@Override
public void afterPhase(PhaseEvent event) {
}
@Override
public void beforePhase(PhaseEvent event) {
if (isInDialogPreparation()) {
Flash flash = FacesContext.getCurrentInstance().getExternalContext().getFlash();
for (String flashName : flash.keySet()) {
flash.keep(flashName);
}
}
}
@Override
public PhaseId getPhaseId() {
return PhaseId.RENDER_RESPONSE;
}
protected boolean isInDialogPreparation() {
String dialogOutcome = (String) FacesContext.getCurrentInstance().getAttributes().get(Constants.DialogFramework.OUTCOME);
return LangUtils.isNotEmpty(dialogOutcome);
}
}