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PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.

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/**
 * The MIT License
 *
 * Copyright (c) 2009-2019 PrimeTek
 *
 * 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
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.primefaces.component.fileupload;

import javax.el.MethodExpression;
import javax.faces.application.ResourceDependencies;
import javax.faces.application.ResourceDependency;
import javax.faces.context.FacesContext;

@ResourceDependencies({
        @ResourceDependency(library = "primefaces", name = "components.css"),
        @ResourceDependency(library = "primefaces", name = "fileupload/fileupload.css"),
        @ResourceDependency(library = "primefaces", name = "jquery/jquery.js"),
        @ResourceDependency(library = "primefaces", name = "jquery/jquery-plugins.js"),
        @ResourceDependency(library = "primefaces", name = "core.js"),
        @ResourceDependency(library = "primefaces", name = "components.js"),
        @ResourceDependency(library = "primefaces", name = "fileupload/fileupload.js")
})
public class FileUpload extends FileUploadBase {

    public static final String COMPONENT_TYPE = "org.primefaces.component.FileUpload";
    public static final String CONTAINER_CLASS = "ui-fileupload ui-widget ui-fileupload-responsive";
    public static final String BUTTON_BAR_CLASS = "ui-fileupload-buttonbar ui-widget-header ui-corner-top";
    public static final String CONTENT_CLASS = "ui-fileupload-content ui-widget-content ui-corner-bottom";
    public static final String FILES_CLASS = "ui-fileupload-files";
    public static final String CHOOSE_BUTTON_CLASS = "ui-fileupload-choose";
    public static final String UPLOAD_BUTTON_CLASS = "ui-fileupload-upload";
    public static final String CANCEL_BUTTON_CLASS = "ui-fileupload-cancel";
    public static final String BUTTON_ICON_ONLY = "ui-fileupload-icon-only";

    public static final String CONTAINER_CLASS_SIMPLE = "ui-fileupload-simple ui-widget";
    public static final String FILENAME_CLASS = "ui-fileupload-filename";

    @Override
    public void broadcast(javax.faces.event.FacesEvent event) throws javax.faces.event.AbortProcessingException {
        super.broadcast(event);

        FacesContext facesContext = getFacesContext();
        MethodExpression me = getFileUploadListener();

        if (me != null && event instanceof org.primefaces.event.FileUploadEvent) {
            me.invoke(facesContext.getELContext(), new Object[]{event});
        }
    }
}