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package com.ksyzt.gwt.client.common;

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.Label;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.Widget;

// TODO: Auto-generated Javadoc

/**
 * The Class TopMessage.
 */
public class TopMessage extends PopupPanel {

    /**
     * The ui binder.
     */
    private static TopMessageUiBinder uiBinder = GWT
            .create(TopMessageUiBinder.class);

    /**
     * The Interface TopMessageUiBinder.
     */
    interface TopMessageUiBinder extends UiBinder {
    }

    /**
     * Instantiates a new top message.
     */
    public TopMessage() {
        setWidget(uiBinder.createAndBindUi(this));
        this.setAnimationEnabled(true);
        this.setAutoHideEnabled(false);
        this.setGlassEnabled(false);
        this.setModal(false);
        this.setStyleName("");
    }

    /**
     * The lb message.
     */
    @UiField
    Label lbMessage;

    /**
     * The m callback.
     */
    private PositionCallback m_callback = new PositionCallback() {

        public void setPosition(int offsetWidth, int offsetHeight) {
            int width = Window.getClientWidth();
            int left = (width - offsetWidth) / 2;
            int top = 0;
            TopMessage.this.setPopupPosition(left, top);
        }

    };

    /**
     * Show mesasge.
     *
     * @param text the text
     */
    public void showMesasge(String text) {
        if (text == null || text.length() == 0) {
            this.hide();
        } else {
            lbMessage.setText(text);
            if (!this.isShowing()) {
                this.setPopupPositionAndShow(m_callback);
            }
            new Timer() {

                @Override
                public void run() {
                    TopMessage.this.hide(true);
                }
            }.schedule(5 * 1000);
        }
    }

}