org.eclipse.emf.eef.runtime.ui.gwt.dialog.CreateResourceDialog.java Source code

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Here is the source code for org.eclipse.emf.eef.runtime.ui.gwt.dialog.CreateResourceDialog.java

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/*******************************************************************************
 * Copyright (c) 2008, 2011 Obeo.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Obeo - initial API and implementation
 *******************************************************************************/
package org.eclipse.emf.eef.runtime.ui.gwt.dialog;

import org.eclipse.emf.eef.runtime.ui.gwt.editor.util.EventProcess;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.Grid;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;

/**
 * @author glefur
 *
 */
public class CreateResourceDialog extends DialogBox {

    private TextBox uriText;
    private EventProcess result;

    /**
     * 
     */
    public CreateResourceDialog() {
        super();
        this.setText("Create Resource");
        final Button okButton = new Button("OK");
        final Button cancelButton = new Button("Cancel");
        VerticalPanel verticalPanel = new VerticalPanel();
        Grid grid = new Grid();
        grid.setWidth("50em");
        grid.resize(3, 2);
        grid.getColumnFormatter().setWidth(0, "15%");
        grid.getColumnFormatter().setWidth(1, "85%");
        Label uriLabel = new Label();
        uriLabel.setText("URI");
        uriText = new TextBox();
        uriText.setWidth("90%");
        uriText.setValue(defaultValue());
        uriText.selectAll();
        final Label message = new Label();
        uriText.addValueChangeHandler(new ValueChangeHandler<String>() {
            public void onValueChange(ValueChangeEvent<String> event) {
                String value = event.getValue();
                if (valideValue(value)) {
                    message.setText("");
                    okButton.setEnabled(true);
                } else {
                    message.setText("Invalid value.");
                    okButton.setEnabled(false);
                }
            }
        });
        grid.setWidget(0, 0, uriLabel);
        grid.setWidget(0, 1, uriText);
        verticalPanel.add(grid);
        grid.setWidget(1, 1, message);
        grid.setWidget(2, 0, okButton);
        grid.setWidget(2, 1, cancelButton);
        this.setWidget(verticalPanel);
        okButton.addClickHandler(new ClickHandler() {

            public void onClick(ClickEvent event) {
                hide();
                result = processOk(uriText.getValue());
            }
        });
        cancelButton.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                hide();
                processCancel();
            }
        });
        open();
        // dialogBox.setWidth("50em");
    }

    /**
     * @return the processOk
     */
    public EventProcess getResult() {
        return result;
    }

    protected EventProcess processOk(Object value) {
        return new EventProcess(null, null);
    }

    protected void processCancel() {

    }

    protected String defaultValue() {
        return "";
    }

    protected boolean valideValue(Object value) {
        return true;
    }

    public void open() {
        show();
        uriText.setFocus(true);
    }

}