org.ebayopensource.turmeric.policy.adminui.client.view.common.FileUploaderWidget.java Source code

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Here is the source code for org.ebayopensource.turmeric.policy.adminui.client.view.common.FileUploaderWidget.java

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/*******************************************************************************
 * Copyright (c) 2006-2010 eBay Inc. All Rights Reserved.
 * 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
 *******************************************************************************/
package org.ebayopensource.turmeric.policy.adminui.client.view.common;

import org.ebayopensource.turmeric.policy.adminui.client.PolicyAdminUIUtil;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.FileUpload;
import com.google.gwt.user.client.ui.FormPanel;
import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteEvent;
import com.google.gwt.user.client.ui.FormPanel.SubmitEvent;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * The Class FileUploaderWidget.
 */
public class FileUploaderWidget {

    /**
     * Gets the file uploader widget.
     * 
     * @param form
     *            the form
     * @param entity
     *            the entity
     * @return the file uploader widget
     */
    public static Widget getFileUploaderWidget(final FormPanel form, final String entity) {

        VerticalPanel holder = new VerticalPanel();
        final FileUpload fu = new FileUpload();

        fu.setName("upload");
        holder.add(fu);
        holder.add(new Button(PolicyAdminUIUtil.policyAdminConstants.importAction(), new ClickHandler() {
            public void onClick(ClickEvent event) {

                if (!fu.getFilename().isEmpty()
                        && Window.confirm(PolicyAdminUIUtil.policyAdminConstants.importAction() + " " + entity
                                + PolicyAdminUIUtil.policyAdminConstants.from() + " " + fu.getFilename() + "?")) {
                    form.submit();
                }
            }
        }));

        form.addSubmitHandler(new FormPanel.SubmitHandler() {
            public void onSubmit(SubmitEvent event) {

            }
        });

        form.addSubmitCompleteHandler(new FormPanel.SubmitCompleteHandler() {
            public void onSubmitComplete(SubmitCompleteEvent event) {

                int indexFrom = event.getResults().indexOf("<pre>") + 5;
                int indexTo = event.getResults().indexOf("</pre>");
                if (indexTo - indexFrom > 1) {
                    Window.alert(event.getResults().substring(indexFrom, indexTo));
                } else {
                    Window.alert(PolicyAdminUIUtil.policyAdminMessages.successfulOperationMessage());
                }

            }
        });

        form.add(holder);

        return form;
    }
}