ca.upei.ic.timetable.client.MessageView.java Source code

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Here is the source code for ca.upei.ic.timetable.client.MessageView.java

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/*
 *  Copyright 2008 University of Prince Edward Island
 *
 *  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 ca.upei.ic.timetable.client;

import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.KeyboardListener;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * A view that show system messages
 * @author felix
 *
 */
public class MessageView implements View {

    private MessageViewController controller_;
    private DialogBox dialogBox_;
    private VerticalPanel panel_;

    public MessageView(MessageViewController controller) {
        controller_ = controller;
        dialogBox_ = new DialogBox(true, true);
        dialogBox_.setText("Messages");
        dialogBox_.setAnimationEnabled(true);
        dialogBox_.hide();
        // XXX a hack to make sure the dialog display top most
        dialogBox_.getElement().getStyle().setProperty("z-index", "100");

        ScrollPanel scrolled = new ScrollPanel();
        scrolled.setPixelSize(350, 250);

        panel_ = new VerticalPanel();
        panel_.setWidth("232px");

        scrolled.add(panel_);
        Button closeButton = new Button("Close");
        closeButton.addClickListener(new ClickListener() {

            public void onClick(Widget sender) {
                dialogBox_.hide();
            }

        });

        closeButton.addKeyboardListener(new KeyboardListener() {

            public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            }

            public void onKeyPress(Widget sender, char keyCode, int modifiers) {
                if (keyCode == KeyboardListener.KEY_ESCAPE)
                    dialogBox_.hide();
            }

            public void onKeyUp(Widget sender, char keyCode, int modifiers) {
            }

        });

        Button clearButton = new Button("Clear");
        clearButton.addClickListener(new ClickListener() {

            public void onClick(Widget sender) {
                clearMessage();
            }

        });

        dialogBox_.setWidget(
                PanelUtils.verticalPanel(scrolled, PanelUtils.horizontalPanel(closeButton, clearButton)));
    }

    public void addSubView(View subView) {
        throw new RuntimeException("Not Implemented.");
    }

    public void log(String msg) {
        panel_.add(new HTML(msg));
        dialogBox_.show();
    }

    public void debug(String msg) {
        log(msg);
    }

    public void clearMessage() {
        panel_.clear();
    }

    public ViewController getController() {
        return controller_;
    }

    public Widget getWidget() {
        return dialogBox_;
    }

    public void hide() {
        dialogBox_.show();
    }

    public void show() {
        dialogBox_.hide();
    }
}