163 lines
4.4 KiB
Java
163 lines
4.4 KiB
Java
package org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.form;
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import java.util.ArrayList;
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import java.util.List;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.metadata.MetaDataFieldSkeleton;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.metadata.MetadataFieldWrapper;
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import com.github.gwtbootstrap.client.ui.Button;
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import com.github.gwtbootstrap.client.ui.Label;
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import com.github.gwtbootstrap.client.ui.constants.LabelType;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.event.dom.client.ClickEvent;
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import com.google.gwt.event.dom.client.ClickHandler;
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import com.google.gwt.event.shared.HandlerManager;
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import com.google.gwt.uibinder.client.UiBinder;
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import com.google.gwt.uibinder.client.UiField;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.VerticalPanel;
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import com.google.gwt.user.client.ui.Widget;
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/**
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* The Class MetaDataField.
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*
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* @author Francesco Mangiacrapa at ISTI-CNR (francesco.mangiacrapa@isti.cnr.it)
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*
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* Jun 10, 2019
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*/
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public class MetaDataField extends Composite {
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private static MetaDataFieldUiBinder uiBinder = GWT.create(MetaDataFieldUiBinder.class);
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@UiField VerticalPanel panelMetaDataFieldsSkeleton;
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@UiField Label repeatabilityLabel;
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//@UiField ControlGroup cgMetaDataFieldSkeletonFields;
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@UiField Button addFieldButton;
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@UiField Button removeFieldButton;
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private List<MetaDataFieldSkeleton> listOfMetadataFields = new ArrayList<MetaDataFieldSkeleton>();
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private MetadataFieldWrapper fieldWrapper;
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private HandlerManager eventBus;
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/**
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* The Interface MetaDataFieldUiBinder.
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*
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* @author Francesco Mangiacrapa at ISTI-CNR (francesco.mangiacrapa@isti.cnr.it)
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*
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* Jun 10, 2019
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*/
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interface MetaDataFieldUiBinder extends UiBinder<Widget, MetaDataField> {
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}
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/**
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* Instantiates a new meta data field.
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*
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* @param field the field
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* @param eventBus the event bus
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* @throws Exception the exception
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*/
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public MetaDataField(final MetadataFieldWrapper field, HandlerManager eventBus) throws Exception {
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initWidget(uiBinder.createAndBindUi(this));
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this.fieldWrapper = field;
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this.eventBus = eventBus;
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addNewOccurrenceOfField();
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checkAllowedAddField();
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checkAllowedRemoveField();
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addFieldButton.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) {
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addNewOccurrenceOfField();
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checkAllowedAddField();
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checkAllowedRemoveField();
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}
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});
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removeFieldButton.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) {
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removeLatestOccurrenceOfFiled();
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checkAllowedAddField();
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checkAllowedRemoveField();
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}
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});
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//The field is repeatable
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if(field.getMaxOccurs()>1) {
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repeatabilityLabel.setVisible(true);
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repeatabilityLabel.setType(LabelType.INFO);
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addFieldButton.setTitle("Add another "+field.getFieldName());
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removeFieldButton.setTitle("Remove latest "+field.getFieldName());
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// String maxTxt = field.getMaxOccurs()==Integer.MAX_VALUE?"":"(max occurs declared are "+field.getMaxOccurs()+" times)";
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}
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}
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/**
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* Check allowed remove field.
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*/
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private void checkAllowedRemoveField() {
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boolean removeCond = fieldWrapper.getMaxOccurs()>1 && listOfMetadataFields.size()>1;
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removeFieldButton.setVisible(removeCond);
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}
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/**
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* Checks if is allowed add occurrence.
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*/
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private void checkAllowedAddField() {
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boolean repeatibilityCond = fieldWrapper.getMaxOccurs()>1 && listOfMetadataFields.size()<fieldWrapper.getMaxOccurs();
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addFieldButton.setVisible(repeatibilityCond);
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}
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/**
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* Removes the latest occurrence of filed.
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*/
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private void removeLatestOccurrenceOfFiled() {
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int size = listOfMetadataFields.size();
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MetaDataFieldSkeleton skeleton = listOfMetadataFields.get(size-1);
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try {
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panelMetaDataFieldsSkeleton.remove(skeleton);
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listOfMetadataFields.remove(size-1);
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}catch (Exception e) {
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GWT.log("Error: ",e);
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}
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}
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/**
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* Adds the new occurrence of field.
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*/
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private void addNewOccurrenceOfField() {
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try {
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MetaDataFieldSkeleton fieldWidget = new MetaDataFieldSkeleton(fieldWrapper, eventBus);
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listOfMetadataFields.add(fieldWidget);
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panelMetaDataFieldsSkeleton.add(fieldWidget);
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} catch (Exception e) {
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GWT.log("Error: ",e);
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}
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}
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/**
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* Gets the list of metadata fields.
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*
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* @return the list of metadata fields
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*/
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public List<MetaDataFieldSkeleton> getListOfMetadataFields() {
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return listOfMetadataFields;
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}
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}
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