com.autentia.wuija.widget.JsfWidget.java Source code

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Here is the source code for com.autentia.wuija.widget.JsfWidget.java

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/**
 * Copyright 2008 Autentia Real Business Solutions S.L.
 * 
 * This file is part of Autentia WUIJA.
 * 
 * Autentia WUIJA is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 * 
 * Autentia WUIJA is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with Autentia WUIJA. If not, see <http://www.gnu.org/licenses/>.
 */

package com.autentia.wuija.widget;

import java.util.List;

import org.springframework.util.ObjectUtils;

import com.autentia.common.util.web.jsf.JsfUtils;
import com.autentia.wuija.widget.notification.EventProcessor;
import com.autentia.wuija.widget.notification.WidgetEvent;
import com.autentia.wuija.widget.notification.WidgetListener;

public abstract class JsfWidget {

    protected static final String RENDERER_PATH = "/WEB-INF/facelets/widget/";

    private boolean disabled = false;

    private final EventProcessor eventProcessor = new EventProcessor();

    private String id;

    private String[] renderOnUserRoles;

    private boolean visible = true;

    public JsfWidget() {
        id = "id" + ObjectUtils.getIdentityHexString(this);
    }

    public void addListener(WidgetListener widgetListener) {
        eventProcessor.addListener(widgetListener);
    }

    protected void fireEvent(WidgetEvent widgetEvent) {
        eventProcessor.fireEvent(widgetEvent);
    }

    public String getId() {
        return id;
    }

    protected List<WidgetListener> getListeners() {
        return eventProcessor.getListeners();
    }

    public abstract String getRendererPath();

    public boolean isDisabled() {
        return disabled;
    }

    /**
     * Indica su el widget es visible o no. La visibilidad del widget tambin depende de si el usuario que quiere
     * mostrarlo est en un rol determiando.
     * 
     * @return <code>true</code> si el widget es visible para el usuario que pretende mostrarlo, <code>false</code> en
     *         otro caso.
     */
    public boolean isVisible() {
        return visible && JsfUtils.isUserInRole(renderOnUserRoles);
    }

    public void setDisabled(boolean disabled) {
        this.disabled = disabled;
    }

    public void setId(String id) {
        this.id = id;
    }

    public void setRenderOnUserRole(String... renderOnUserRoles) {
        this.renderOnUserRoles = renderOnUserRoles;
    }

    public void setVisible(boolean visible) {
        this.visible = visible;
    }

    protected boolean someoneIsListening() {
        return eventProcessor.someoneIsListening();
    }

    protected boolean someoneIsListening(Class<? extends WidgetListener> listenerClass) {
        return eventProcessor.someoneIsListening(listenerClass);
    }
}