111 lines
3.2 KiB
Java
111 lines
3.2 KiB
Java
package org.gcube.portlet.user.my_vres.client;
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import java.util.ArrayList;
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import java.util.LinkedHashMap;
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import org.gcube.portlet.user.my_vres.client.widgets.ClickableVRE;
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import org.gcube.portlet.user.my_vres.shared.VRE;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.dom.client.Style.Unit;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.FlowPanel;
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import com.google.gwt.user.client.ui.HTML;
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import com.google.gwt.user.client.ui.HasAlignment;
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import com.google.gwt.user.client.ui.HorizontalPanel;
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import com.google.gwt.user.client.ui.Image;
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import com.google.gwt.user.client.ui.SimplePanel;
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import com.google.gwt.user.client.ui.VerticalPanel;
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/**
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*
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* @author Massimiliano Assante - ISTI CNR
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*
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*/
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public class VresPanel extends Composite {
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public static final String loading = GWT.getModuleBaseURL() + "../images/loading.gif";
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private final MyVREsServiceAsync myVREsService = GWT.create(MyVREsService.class);
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private FlowPanel flowPanel;
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private VerticalPanel mainPanel = new VerticalPanel();
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private SimplePanel catPanel = new SimplePanel();
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private HorizontalPanel imagesPanel = new HorizontalPanel();
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private Image loadingImage = new Image(loading);
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private LinkedHashMap<String, ArrayList<VRE>> cachedVREs = null;
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boolean hasVres = false;
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public VresPanel() {
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super();
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loadingImage.getElement().getStyle().setMarginTop(59, Unit.PX);
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mainPanel.setHorizontalAlignment(HasAlignment.ALIGN_CENTER);
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mainPanel.setWidth("100%");
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mainPanel.setStyleName("mainPanel");
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this.flowPanel = new FlowPanel();
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flowPanel.setWidth("100%");
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flowPanel.setStyleName("flowPanel");
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catPanel.setWidth("95%");
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loadVREs();
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initWidget(mainPanel);
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}
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private void loadVREs() {
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mainPanel.add(loadingImage);
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myVREsService.getUserVREs(new AsyncCallback<LinkedHashMap<String,ArrayList<VRE>>>() {
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@Override
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public void onFailure(Throwable caught) {
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flowPanel.add(new HTML("Could not fetch personal VREs: " + caught.getMessage()));
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}
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@Override
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public void onSuccess(LinkedHashMap<String, ArrayList<VRE>> result) {
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cachedVREs = result;
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showIconView();
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}
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});
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}
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private void showIconView() {
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mainPanel.clear();
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mainPanel.setHorizontalAlignment(HasAlignment.ALIGN_LEFT);
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for (String cat : cachedVREs.keySet()) {
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if (! cachedVREs.get(cat).isEmpty()) {
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SimplePanel catPanel = new SimplePanel();
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catPanel.setStyleName("category-panel");
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HTML categ = new HTML(cat);
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categ.setStyleName("category-name");
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catPanel.add(categ);
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mainPanel.add(catPanel);
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FlowPanel flowPanel = new FlowPanel();
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flowPanel.setWidth("100%");
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flowPanel.setStyleName("flowPanel");
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for (VRE vre: cachedVREs.get(cat)) {
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ClickableVRE vreButton = new ClickableVRE(vre, myVREsService);
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flowPanel.add(vreButton);
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}
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mainPanel.add(flowPanel);
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}
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}
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if (! hasAtLeastOneVRE(cachedVREs)) {
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mainPanel.add(new NoVresPanel());
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imagesPanel.clear();
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}
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}
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private boolean hasAtLeastOneVRE(LinkedHashMap<String, ArrayList<VRE>> cachedVREs) {
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for (String cat : cachedVREs.keySet())
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if (! cachedVREs.get(cat).isEmpty())
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return true;
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return false;
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}
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}
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