192 lines
4.1 KiB
Java
192 lines
4.1 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.user.dataminermanager.client.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.user.dataminermanager.client.DataMinerManager;
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import org.gcube.portlets.user.dataminermanager.client.bean.parameters.Parameter;
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import org.gcube.portlets.user.dataminermanager.client.bean.parameters.TabularListParameter;
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import org.gcube.portlets.user.dataminermanager.client.bean.parameters.TabularParameter;
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import com.allen_sauer.gwt.log.client.Log;
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import com.google.gwt.user.client.ui.Widget;
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import com.sencha.gxt.widget.core.client.button.TextButton;
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import com.sencha.gxt.widget.core.client.container.HorizontalLayoutContainer;
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import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
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import com.sencha.gxt.widget.core.client.event.SelectEvent;
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/**
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*
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* @author Giancarlo Panichi
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* email: <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
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*
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*/
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public class TabularListFld extends AbstractFld {
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private List<Item> items = new ArrayList<Item>();
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private VerticalLayoutContainer vp;
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private TabularListParameter tabularListParameter;
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/**
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* @param parameter
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*/
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public TabularListFld(Parameter parameter) {
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super(parameter);
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Log.debug("TabularListField");
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this.tabularListParameter = (TabularListParameter) parameter;
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vp = new VerticalLayoutContainer();
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addField(null);
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}
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private void addField(Item upperItem) {
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TabularParameter tabPar = new TabularParameter(
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tabularListParameter.getName(),
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tabularListParameter.getDescription(),null,
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tabularListParameter.getTemplates());
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if (upperItem == null) {
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Item item = new Item(tabPar, true);
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items.add(item);
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vp.add(item);
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} else {
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// search the position of the upper item
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int pos = 0;
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for (int i = 0; i < items.size(); i++)
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if (items.get(i) == upperItem) {
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pos = i;
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break;
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}
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upperItem.showCancelButton();
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Item item = new Item(tabPar, false);
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items.add(pos + 1, item);
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vp.insert(item, pos + 1);
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}
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vp.forceLayout();
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}
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/**
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* @param item
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*/
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protected void removeField(Item item) {
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items.remove(item);
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vp.remove(item);
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vp.forceLayout();
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if (items.size() == 1) {
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items.get(0).hideCancelButton();
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}
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}
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/**
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*
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*/
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@Override
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public String getValue() {
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String separator = tabularListParameter.getSeparator();
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String value = "";
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boolean first = true;
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for (Item item : items) {
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String itemValue = item.getValue();
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if (itemValue != null && !itemValue.contentEquals("")) {
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value += (first ? "" : separator) + itemValue;
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first = false;
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}
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}
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return value;
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}
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/**
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*
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*/
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@Override
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public Widget getWidget() {
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return vp;
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}
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/**
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*
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*/
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@Override
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public boolean isValid() {
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boolean valid = false;
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for (Item item : items)
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if (item.getField().getValue() != null) {
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valid = true;
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break;
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}
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return valid;
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}
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private class Item extends HorizontalLayoutContainer {
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private TabularFld field;
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private TextButton addButton;
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private TextButton removeButton;
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/**
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*
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* @param tabularParameter
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* @param first
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*/
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public Item(TabularParameter tabularParameter, boolean first) {
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super();
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this.field = new TabularFld(tabularParameter);
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this.add(field.getWidget());
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addButton= new TextButton("");
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addButton.setIcon(DataMinerManager.resources.add());
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addButton.addSelectHandler(new SelectEvent.SelectHandler() {
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@Override
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public void onSelect(SelectEvent event) {
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addField(Item.this);
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}
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});
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removeButton= new TextButton("");
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removeButton.setIcon(DataMinerManager.resources.cancel());
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removeButton.addSelectHandler(new SelectEvent.SelectHandler() {
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@Override
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public void onSelect(SelectEvent event) {
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removeField(Item.this);
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}
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});
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removeButton.setVisible(!first);
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this.add(addButton);
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this.add(removeButton);
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}
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public void showCancelButton() {
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removeButton.setVisible(true);
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}
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public void hideCancelButton() {
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removeButton.setVisible(false);
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}
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public String getValue() {
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return field.getValue();
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}
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public TabularFld getField() {
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return field;
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}
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}
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}
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