com.qut.gwtuilib.client.input.ConfirmationStyledButton.java Source code

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Here is the source code for com.qut.gwtuilib.client.input.ConfirmationStyledButton.java

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/* Copyright 2008, Queensland University of Technology
 * 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 com.qut.gwtuilib.client.input;

import com.google.gwt.user.client.ui.AbstractImagePrototype;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

public class ConfirmationStyledButton extends HorizontalPanel {
    StyledButton button;
    ConfirmDialog confirmDialog;
    String confirmMsg;

    public ConfirmationStyledButton(String confirmMsg, String name, AbstractImagePrototype img) {
        this.confirmMsg = confirmMsg;
        this.button = new StyledButton(name, img);
        this.button.addClickListener(new ClickListener() {
            public void onClick(Widget sender) {
                confirmClick();
            }
        });

        this.confirmDialog = new ConfirmDialog();

        this.add(this.button);
    }

    public ConfirmationStyledButton(String confirmMsg, String name, String label) {
        this.confirmMsg = confirmMsg;
        this.button = new StyledButton(name, label);
        this.button.addClickListener(new ClickListener() {
            public void onClick(Widget sender) {
                confirmClick();
            }
        });

        this.confirmDialog = new ConfirmDialog();

        this.add(this.button);
    }

    /**
     * @param listener
     * @see com.google.gwt.user.client.ui.FocusWidget#addClickListener(com.google.gwt.user.client.ui.ClickListener)
     */
    public void addClickListener(ClickListener listener) {
        /* Send all actual registered events to the confirmation button */
        confirmDialog.confirmPanel.addClickListener(listener);
    }

    void confirmClick() {
        this.confirmDialog.show();
        this.confirmDialog.center();
    }

    void cancelClick() {
        this.confirmDialog.hide();
    }

    void executeClick() {
        this.confirmDialog.hide();
    }

    private class ConfirmationPanel extends VerticalPanel {
        StyledButton confirmBtn;
        StyledButton cancelBtn;

        public ConfirmationPanel() {
            this.setSpacing(5);

            Label confirm = new Label(ConfirmationStyledButton.this.confirmMsg);

            this.confirmBtn = new StyledButton("confirm", "Confirm");
            this.confirmBtn.addClickListener(new ClickListener() {
                public void onClick(Widget sender) {
                    ConfirmationStyledButton.this.executeClick();
                }
            });

            this.cancelBtn = new StyledButton("cancel", "Cancel");
            this.cancelBtn.addClickListener(new ClickListener() {
                public void onClick(Widget sender) {
                    ConfirmationStyledButton.this.cancelClick();
                }
            });

            this.add(confirm);

            HorizontalPanel buttons = new HorizontalPanel();
            buttons.setSpacing(5);
            buttons.add(this.confirmBtn);
            buttons.add(this.cancelBtn);

            this.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);
            this.add(buttons);
        }

        /**
         * @param listener
         * @see com.google.gwt.user.client.ui.FocusWidget#addClickListener(com.google.gwt.user.client.ui.ClickListener)
         */
        public void addClickListener(ClickListener listener) {
            this.confirmBtn.addClickListener(listener);
        }
    }

    private class ConfirmDialog extends DialogBox {
        protected ConfirmationPanel confirmPanel;

        public ConfirmDialog() {
            this.setText("Confirm Action");
            this.confirmPanel = new ConfirmationPanel();
            this.add(this.confirmPanel);
        }
    }
}