root / web_client / src / gr / grnet / pithos / web / client / LoadingIndicator.java @ 58777026
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/*
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* Copyright 2011 GRNET S.A. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and
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* documentation are those of the authors and should not be
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* interpreted as representing official policies, either expressed
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* or implied, of GRNET S.A.
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*/
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package gr.grnet.pithos.web.client; |
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import com.google.gwt.resources.client.ClientBundle; |
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import com.google.gwt.resources.client.ImageResource; |
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import com.google.gwt.user.client.ui.AbstractImagePrototype; |
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import com.google.gwt.user.client.ui.Composite; |
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import com.google.gwt.user.client.ui.HTML; |
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import com.google.gwt.user.client.ui.HasHorizontalAlignment; |
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import com.google.gwt.user.client.ui.VerticalPanel; |
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/**
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* The 'loading' indicator widget implementation.
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*/
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public class LoadingIndicator extends Composite { |
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public static final String DEFAULT_MESSAGE="Please Wait"; |
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HTML messageLabel;
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/**
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* An image bundle for this widgets images.
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*/
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public interface Images extends ClientBundle { |
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@Source("gr/grnet/pithos/resources/ajax-loader.gif") |
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ImageResource loading(); |
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} |
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/**
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* The widget's constructor that creates a spinning indicator image.
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*/
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public LoadingIndicator(Images images) {
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VerticalPanel vp = new VerticalPanel();
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//vp.setHorizontalAlignment(HorizontalAlignmentConstant.CENTER);
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HTML inner = new HTML(AbstractImagePrototype.create(images.loading()).getHTML()); |
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vp.add(inner); |
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vp.add(messageLabel = new HTML(DEFAULT_MESSAGE) ); |
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vp.setCellHorizontalAlignment(inner, HasHorizontalAlignment.ALIGN_CENTER); |
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vp.setCellHorizontalAlignment(messageLabel, HasHorizontalAlignment.ALIGN_CENTER); |
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initWidget(vp); |
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} |
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/**
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* Modify the message.
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*
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* @param message the message to set
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*/
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public void setMessage(String message) { |
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messageLabel.setHTML(message); |
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} |
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public void clearMessage(){ |
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setMessage(DEFAULT_MESSAGE); |
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} |
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public void show(String msg){ |
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if(msg==null) |
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setMessage(DEFAULT_MESSAGE); |
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else
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setMessage(msg); |
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this.setVisible(true); |
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} |
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public void hide(){ |
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setMessage(DEFAULT_MESSAGE); |
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this.setVisible(false); |
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} |
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} |