org.atmosphere.samples.client.Info.java Source code

Introduction

Here is the source code for org.atmosphere.samples.client.Info.java

Source

/*
 * Copyright 2011 Jeanfrancois Arcand
 *
 * 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.atmosphere.samples.client;

import com.google.gwt.core.client.GWT;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.Widget;
import java.util.ArrayList;

/**
 *
 * @author p.havelaar
 */
public class Info extends PopupPanel {

    public static void display(String title, String message) {

        final Info info = new Info(title, message);

        info.show();

        Timer t = new Timer() {
            @Override
            public void run() {
                info.hide();
            }
        };
        t.schedule(4000);
    }

    @Override
    public void show() {
        super.show();
        slots.add(level, this);
    }

    @Override
    public void hide() {
        super.hide();
        slots.set(level, null);
    }

    protected Info(String title, String message) {

        add(new InfoWidget(title, message));
        setWidth("300px");
        setHeight("50px");

        int root_width = Window.getClientWidth();
        int root_height = Window.getClientHeight();

        level = findAvailableLevel();

        int left = root_width - 320;
        int top = root_height - 80 - (level * 60);

        setPopupPosition(left, top);
    }

    private static ArrayList<Info> slots = new ArrayList<Info>();

    private int level;

    private static int findAvailableLevel() {
        int size = slots.size();
        for (int i = 0; i < size; i++) {
            if (slots.get(i) == null) {
                return i;
            }
        }
        return size;
    }

    public static class InfoWidget extends Composite {
        MyUiBinder binder = GWT.create(MyUiBinder.class);

        interface MyUiBinder extends UiBinder<Widget, InfoWidget> {
        }

        @UiField
        Label title;
        @UiField
        Label message;

        private InfoWidget(String title, String message) {
            initWidget(binder.createAndBindUi(this));
            this.title.setText(title);
            this.message.setText(message);
        }
    }

}