ru.codeinside.gses.webui.MemoryUsage.java Source code

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Here is the source code for ru.codeinside.gses.webui.MemoryUsage.java

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/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 * Copyright (c) 2013, MPL CodeInside http://codeinside.ru
 */

package ru.codeinside.gses.webui;

import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.TabSheet;
import com.vaadin.ui.TextArea;
import ru.codeinside.gses.webui.eventbus.SizeEvent;

final public class MemoryUsage extends CustomComponent {

    final TabSheet tabs;
    final TextArea sizeErr;

    public MemoryUsage(TabSheet tabs) {
        this.tabs = tabs;
        sizeErr = new TextArea();
        sizeErr.setStyleName("debug-panel");
        sizeErr.setSizeFull();
        sizeErr.setReadOnly(true);
        setCompositionRoot(sizeErr);
        setSizeFull();

        Flash.router().addListener(SizeEvent.class, this, "onSizeEvent");
        tabs.addTab(this, "?").setDescription("? ?");
    }

    @SuppressWarnings("unused") // EventBus API
    public void onSizeEvent(SizeEvent event) {
        sizeErr.setReadOnly(false);
        sizeErr.setValue(event.error == null ? "?  ?" : event.error);
        sizeErr.setReadOnly(true);
        tabs.getTab(this).setCaption((event.error == null ? "" : "!") + event.size);
    }

}