com.education.lessons.ui.client.login.utils.WebDialog.java Source code

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Here is the source code for com.education.lessons.ui.client.login.utils.WebDialog.java

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/*
 * Copyright (C) 2010 Dimitrios Menounos
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.education.lessons.ui.client.login.utils;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Element;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.resources.client.ClientBundle;
import com.google.gwt.resources.client.CssResource;
import com.google.gwt.resources.client.CssResource.ImportedWithPrefix;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.DialogBox;

/**
 * A closable dialog box.
 */
public class WebDialog extends DialogBox {

    private static final Resources res;
    private static final Style css;

    static {
        res = GWT.create(Resources.class);
        res.style().ensureInjected();
        css = res.style();
    }

    private boolean closable;
    private Button closeButton;

    public WebDialog() {
        this(false);
    }

    public WebDialog(boolean autoHide) {
        this(autoHide, true);
    }

    public WebDialog(boolean autoHide, boolean modal) {
        super(autoHide, modal);
        addStyleName("WebDialog");
    }

    public boolean isClosable() {
        return closable;
    }

    public void setClosable(boolean closable) {
        this.closable = closable;
    }

    public Button getCloseButton() {
        if (closeButton == null) {
            closeButton = new Button();
            closeButton.addStyleName("closeButton");
            closeButton.addStyleName(css.closeButton());
            closeButton.addClickHandler(new ClickHandler() {

                @Override
                public void onClick(ClickEvent event) {
                    hide();
                }
            });
        }

        return closeButton;
    }

    @Override
    protected void onLoad() {
        super.onLoad();

        if (isClosable()) {
            Element topCenterInner = getCellElement(0, 1);
            topCenterInner.insertFirst(getCloseButton().getElement());
            adopt(getCloseButton());
        }
    }

    @Override
    protected void onUnload() {
        if (isClosable()) {
            orphan(getCloseButton());
            Element topCenterInner = getCellElement(0, 1);
            topCenterInner.removeChild(getCloseButton().getElement());
        }

        super.onUnload();
    }

    public interface Resources extends ClientBundle {

        @Source("WebDialog.css")
        Style style();
    }

    @ImportedWithPrefix("mojo-WebDialog")
    public interface Style extends CssResource {

        String closeButton();
    }
}