org.overlord.sramp.ui.client.widgets.dialogs.OkCancelDialogBox.java Source code

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Here is the source code for org.overlord.sramp.ui.client.widgets.dialogs.OkCancelDialogBox.java

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/*
 * Copyright 2012 JBoss Inc
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.overlord.sramp.ui.client.widgets.dialogs;

import org.overlord.sramp.ui.client.events.OkCancelEvent;
import org.overlord.sramp.ui.client.events.OkCancelEvent.Handler;
import org.overlord.sramp.ui.client.events.OkCancelEvent.HasOkCancelHandlers;
import org.overlord.sramp.ui.client.events.OkCancelEvent.OkCancelKind;
import org.overlord.sramp.ui.client.services.Services;
import org.overlord.sramp.ui.client.services.i18n.ILocalizationService;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * A base class that provides some basic functionality for dialogs that have an OK and Cancel
 * button.
 * 
 * @author eric.wittmann@redhat.com
 */
public class OkCancelDialogBox extends DialogBox implements HasOkCancelHandlers {

    private FlowPanel contentWrapper;
    private Button okButton;
    private Button cancelButton;

    /**
      * Constructor.
      * @param title
      */
    public OkCancelDialogBox(String title) {
        super(title);
        addStyleName("okCancelDialog");

        ILocalizationService i18n = Services.getServices().getService(ILocalizationService.class);

        contentWrapper = new FlowPanel();
        contentWrapper.setStyleName("okCancelDialogContent");
        okButton = new Button(i18n.translate("dialogs.ok"));
        cancelButton = new Button(i18n.translate("dialogs.cancel"));

        VerticalPanel vpanel = new VerticalPanel();
        vpanel.add(contentWrapper);
        HorizontalPanel buttonPanel = new HorizontalPanel();
        buttonPanel.setStyleName("buttonPanel");
        buttonPanel.addStyleName("okCancelButtonPanel");
        buttonPanel.add(okButton);
        buttonPanel.add(cancelButton);
        vpanel.add(buttonPanel);

        super.setWidget(vpanel);

        okButton.setStyleName("okButton");
        okButton.addStyleName("button");
        cancelButton.setStyleName("cancelButton");
        cancelButton.addStyleName("button");

        okButton.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                fireOk();
            }
        });
        cancelButton.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                fireCancel();
            }
        });
    }

    /**
     * @see com.google.gwt.user.client.ui.DecoratedPopupPanel#setWidget(com.google.gwt.user.client.ui.Widget)
     */
    @Override
    public void setWidget(Widget w) {
        this.contentWrapper.clear();
        this.contentWrapper.add(w);
    }

    /**
    * Fires the OK event.
    */
    protected void fireOk() {
        OkCancelEvent.fire(this, OkCancelKind.ok);
    }

    /**
     * Fires the cancel event.
     */
    protected void fireCancel() {
        this.hide();
        OkCancelEvent.fire(this, OkCancelKind.cancel);
    }

    /**
      * @see org.overlord.sramp.ui.client.events.OkCancelEvent.HasOkCancelHandlers#addOkCancelHandler(org.overlord.sramp.ui.client.events.OkCancelEvent.Handler)
      */
    @Override
    public HandlerRegistration addOkCancelHandler(Handler handler) {
        return addHandler(handler, OkCancelEvent.getType());
    }

    /**
     * @see org.overlord.sramp.ui.client.widgets.dialogs.DialogBox#handleEscapePressed()
     */
    @Override
    protected void handleEscapePressed() {
        fireCancel();
    }

    /**
     * Creates a standard OK button click handler.
     */
    protected ClickHandler createOkButtonClickHandler() {
        return new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
            }
        };
    }

    /**
      * Creates a standard Cancel button click handler.
      */
    protected ClickHandler createCancelButtonClickHandler() {
        return new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                hide();
            }
        };
    }

}