Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/SelectProvider.java @ 4573:b87073a05f9d
flys-client: Patch to render combobox options as clickable links.
The way of passing data arguments to the links and further to
the Artifact feeding service is somewhat hacked and should be
refactored (later...).
author | Christian Lins <christian.lins@intevation.de> |
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date | Tue, 27 Nov 2012 12:50:10 +0100 |
parents | 03de5c424f95 |
children | 32a4651eef93 |
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package de.intevation.flys.client.client.ui; import com.google.gwt.core.client.GWT; import com.smartgwt.client.types.VerticalAlignment; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.Label; import com.smartgwt.client.widgets.form.DynamicForm; import com.smartgwt.client.widgets.form.fields.FormItem; import com.smartgwt.client.widgets.form.fields.LinkItem; import com.smartgwt.client.widgets.form.fields.SelectItem; import com.smartgwt.client.widgets.form.fields.SpacerItem; import com.smartgwt.client.widgets.form.fields.events.ClickEvent; import com.smartgwt.client.widgets.form.fields.events.ClickHandler; import com.smartgwt.client.widgets.layout.HLayout; import com.smartgwt.client.widgets.layout.VLayout; import de.intevation.flys.client.client.FLYSConstants; import de.intevation.flys.client.client.event.StepForwardEvent; import de.intevation.flys.client.shared.model.Data; import de.intevation.flys.client.shared.model.DataItem; import de.intevation.flys.client.shared.model.DataList; import de.intevation.flys.client.shared.model.DefaultData; import de.intevation.flys.client.shared.model.DefaultDataItem; import java.util.ArrayList; import java.util.Iterator; import java.util.LinkedHashMap; import java.util.Map; /** * This UIProvider displays the DataItems of the Data object in a combo box. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class SelectProvider extends AbstractUIProvider { private static final long serialVersionUID = 4696637534424070726L; /** The message class that provides i18n strings.*/ protected FLYSConstants messages = GWT.create(FLYSConstants.class); /** The combobox.*/ protected DynamicForm form = new DynamicForm(); public static final int COMBOBOX_THRESHOLD = 20; /** * This method currently returns a * {@link com.smartgwt.client.widgets.form.DynamicForm} that contains all * data items in a combobox stored in <i>data</i>. * * @param data The {@link Data} object. * * @return a combobox. */ @Override public Canvas create(DataList data) { if (data.size() > COMBOBOX_THRESHOLD) { VLayout v = new VLayout(); v.setMembersMargin(10); v.addMember(createComboboxWidget(data)); v.addMember(getNextButton()); return v; } else { return createListWidget(data); } } protected Canvas createWidget(DataList data) { return create(data); } @Override public Canvas createOld(DataList dataList) { HLayout layout = new HLayout(); VLayout vLayout = new VLayout(); layout.setWidth("400px"); Label label = new Label(dataList.getLabel()); label.setWidth("200px"); int size = dataList.size(); for (int i = 0; i < size; i++) { Data data = dataList.get(i); DataItem[] items = data.getItems(); for (DataItem item: items) { HLayout hLayout = new HLayout(); hLayout.addMember(label); hLayout.addMember(new Label(item.getLabel())); vLayout.addMember(hLayout); vLayout.setWidth("130px"); } } Canvas back = getBackButton(dataList.getState()); layout.addMember(label); layout.addMember(vLayout); layout.addMember(back); return layout; } protected Canvas createListWidget(DataList data) { VLayout layout = new VLayout(); layout.setAlign(VerticalAlignment.TOP); layout.setHeight(25); layout.setWidth("100%"); VLayout formLayout = new VLayout(); formLayout.setLayoutTopMargin(20); formLayout.setLayoutLeftMargin(50); ClickHandler handler = new ClickHandler() { @Override public void onClick(ClickEvent event) { LinkItem li = (LinkItem)event.getItem(); String attr = li.getAttribute(li.getName()); GWT.log("li.getTarget: " + attr + " " + li.getName()); DataItem item = new DefaultDataItem( attr, null, attr); Data d = new DefaultData( li.getName(), null, null, new DataItem [] { item }); Data [] odata = getData(); Data [] ndata = new Data[odata.length+1]; System.arraycopy(odata, 0, ndata, 0, odata.length); ndata[odata.length] = d; fireStepForwardEvent(new StepForwardEvent(ndata)); } }; for (int i = 0, size = data.size(); i < size; i++) { Data d = data.get(i); Label label = new Label(d.getDescription()); label.setValign(VerticalAlignment.TOP); label.setHeight(20); label.setWidth(400); LinkedHashMap<String, String> initial = new LinkedHashMap<String, String>(); ArrayList<FormItem> formItems = new ArrayList<FormItem>(); for (DataItem item: d.getItems()) { initial.put(item.getLabel().replace(' ', '_'), item.getStringValue()); GWT.log("put: " + item.getLabel().replace(' ', '_') + "=" + item.getStringValue()); LinkItem link = new LinkItem(d.getLabel()); link.setLinkTitle(item.getLabel()); // i18n text of the link link.setAttribute(d.getLabel(), item.getStringValue()); // e.g. "calculation_mode":"foo" link.setShowTitle(false); link.setEndRow(true); link.setWidth("350px"); SpacerItem space = new SpacerItem(); space.setWidth(15); formItems.add(space); formItems.add(link); link.addClickHandler(handler); } form.setFields(formItems.toArray(new FormItem[0])); form.setValues(initial); layout.addMember(label); layout.addMember(form); } return layout; } protected Canvas createComboboxWidget(DataList data) { GWT.log("SelectProvider.createComboboxWidget()"); VLayout layout = new VLayout(); layout.setAlign(VerticalAlignment.TOP); layout.setHeight(25); LinkedHashMap<String, String> initial = new LinkedHashMap<String, String>(); int size = data.size(); for (int i = 0; i < size; i++) { Data d = data.get(i); Label label = new Label(d.getDescription()); label.setValign(VerticalAlignment.TOP); label.setHeight(20); label.setWidth(400); SelectItem combobox = new SelectItem(d.getLabel()); combobox.setWidth(250); LinkedHashMap<String, String> it = new LinkedHashMap<String, String>(); boolean defaultSet = false; boolean first = true; DataItem def = d.getDefault(); String defValue = def != null ? def.getStringValue() : null; if (defValue != null && defValue.length() > 0) { initial.put(d.getLabel(), def.getStringValue()); defaultSet = true; } for (DataItem item: d.getItems()) { if (!defaultSet && first) { initial.put(d.getLabel(), item.getStringValue()); first = false; } it.put(item.getStringValue(), item.getLabel()); } label.setWidth(50); combobox.setValueMap(it); combobox.setShowTitle(false); form.setItems(combobox); layout.addMember(label); layout.addMember(form); } form.setValues(initial); layout.setAlign(VerticalAlignment.TOP); return layout; } @Override protected Data[] getData() { Map<?,?> values = form.getValues(); Iterator<?> keys = values.keySet().iterator(); Data[] list = new Data[values.size()]; int i = 0; while (keys.hasNext()) { String fieldname = ((String) keys.next()).replace('_', ' '); String selection = (String) values.get(fieldname); DataItem item = new DefaultDataItem(fieldname, null, selection); list[i++] = new DefaultData( fieldname, null, null, new DataItem[] { item }); } return list; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :