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// $Id$
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/**
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* Copyright (C) 2015 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.vaadin.util;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import com.vaadin.ui.AbstractSelect;
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import com.vaadin.ui.Component;
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import com.vaadin.ui.HasComponents;
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import com.vaadin.ui.UI;
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import eu.etaxonomy.cdm.vaadin.component.CdmProgressComponent;
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/**
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* @author cmathew
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* @date 7 Apr 2015
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*
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*/
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public class CdmVaadinUtilities {
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/**
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* Thread safe method to asynchronously perform an update.
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*
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* @param update
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*/
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public static void asyncExec(Runnable update) {
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UI currentUI = UI.getCurrent();
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Thread t = new Thread(update);
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if(currentUI != null) {
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synchronized(currentUI) {
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t.start();
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}
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} else {
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throw new UnsupportedOperationException("Cannot execute update on a UI which is null");
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}
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}
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public static void exec(CdmVaadinOperation op) {
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if(op.isAsync()) {
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asyncExec(op);
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} else {
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op.run();
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}
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}
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public static void setEnabled(Component root, boolean isEnabled, List<? extends Component> exceptions) {
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if(exceptions != null && exceptions.contains(root)) {
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return;
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}
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if(root instanceof HasComponents) {
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HasComponents hc = (HasComponents) root;
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Iterator<Component> iterator = hc.iterator();
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while(iterator.hasNext()) {
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setEnabled(iterator.next(), isEnabled, exceptions);
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}
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} else {
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root.setEnabled(isEnabled);
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}
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}
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public static void enableOnlyProgressBar(Component component) {
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if(component instanceof CdmProgressComponent) {
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component.setEnabled(true);
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return;
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}
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if(component instanceof HasComponents) {
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HasComponents hc = (HasComponents) component;
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Iterator<Component> iterator = hc.iterator();
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while(iterator.hasNext()) {
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enableOnlyProgressBar(iterator.next());
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}
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} else {
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component.setEnabled(false);
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}
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}
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public static boolean isSelected(AbstractSelect select, Object itemId) {
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if(select.getValue() != null) {
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if(select.isMultiSelect()) {
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Set<Object> selectedItemIds = (Set<Object>)select.getValue();
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for(Object selectedItemId : selectedItemIds) {
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if(selectedItemId.equals(itemId)) {
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return true;
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}
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}
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} else {
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return (select.getValue().equals(itemId));
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}
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}
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return false;
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}
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}
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