Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/ProjectList.java @ 555:33b86f5b1168
Don't crash if there is no transformer.
flys-client/trunk@2078 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Wed, 08 Jun 2011 10:57:28 +0000 |
parents | ad2ba6e2b8bd |
children | ab7ec931bae2 |
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package de.intevation.flys.client.client.ui; import java.util.Date; import com.google.gwt.core.client.GWT; import com.google.gwt.i18n.client.DateTimeFormat; import com.google.gwt.user.client.rpc.AsyncCallback; import com.smartgwt.client.types.Alignment; import com.smartgwt.client.types.ListGridFieldType; import com.smartgwt.client.types.SortDirection; import com.smartgwt.client.util.SC; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.Label; import com.smartgwt.client.widgets.grid.CellFormatter; import com.smartgwt.client.widgets.grid.ListGrid; import com.smartgwt.client.widgets.grid.ListGridField; import com.smartgwt.client.widgets.grid.ListGridRecord; import com.smartgwt.client.widgets.grid.events.CellDoubleClickEvent; import com.smartgwt.client.widgets.grid.events.CellDoubleClickHandler; import com.smartgwt.client.widgets.grid.events.RowContextClickEvent; import com.smartgwt.client.widgets.grid.events.RowContextClickHandler; import com.smartgwt.client.widgets.layout.VLayout; import com.smartgwt.client.widgets.menu.Menu; import com.smartgwt.client.widgets.menu.MenuItem; import com.smartgwt.client.widgets.menu.events.MenuItemClickEvent; import com.smartgwt.client.widgets.menu.events.ClickHandler; import com.smartgwt.client.types.VerticalAlignment; import de.intevation.flys.client.shared.model.Collection; import de.intevation.flys.client.shared.model.CollectionRecord; import de.intevation.flys.client.shared.model.User; import de.intevation.flys.client.client.Config; import de.intevation.flys.client.client.FLYS; import de.intevation.flys.client.client.FLYSConstants; import de.intevation.flys.client.client.event.CollectionChangeEvent; import de.intevation.flys.client.client.event.CollectionChangeHandler; import de.intevation.flys.client.client.services.UserCollectionsService; import de.intevation.flys.client.client.services.UserCollectionsServiceAsync; /** * The project list shows a list of projects of a specific user. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class ProjectList extends VLayout implements CollectionChangeHandler { /** The interface that provides i18n messages. */ private FLYSConstants messages = GWT.create(FLYSConstants.class); /** The UserService used to retrieve information about the current user. */ protected UserCollectionsServiceAsync userCollectionsService = GWT.create(UserCollectionsService.class); /** A pointer to the FLYS instance.*/ protected FLYS flys; /** The user whose projects should be displayed.*/ protected User user; /** The grid that contains the project rows.*/ protected ListGrid grid; /** * The default constructor that creates a new ProjectList for a specific * user. * * @param user The user. */ public ProjectList(FLYS flys, User user) { this.flys = flys; this.user = user; grid = new ListGrid(); initGrid(); init(); updateUserCollections(); } protected void initGrid() { grid.setEmptyMessage(messages.no_projects()); grid.setLoadingDataMessage(messages.load_projects()); grid.setShowRecordComponents(true); grid.setShowRecordComponentsByCell(true); grid.setCanRemoveRecords(false); grid.setShowHeader(false); grid.setWidth100(); grid.setHeight100(); grid.setSortDirection(SortDirection.DESCENDING); grid.setSortField(0); ListGridField date = buildDateField(); ListGridField name = buildNameField(); grid.setFields(date, name); grid.addCellDoubleClickHandler(new CellDoubleClickHandler() { public void onCellDoubleClick(CellDoubleClickEvent e) { CollectionRecord record = (CollectionRecord) e.getRecord(); String uuid = record != null ? record.getCollection().identifier() : ""; getFlys().openProject(uuid); } }); grid.addRowContextClickHandler(new RowContextClickHandler() { public void onRowContextClick(RowContextClickEvent event) { CollectionRecord record = (CollectionRecord) event.getRecord(); Menu menu = createContextMenu(record); grid.setContextMenu(menu); menu.showContextMenu(); event.cancel(); } }); } public FLYS getFlys() { return flys; } /** * Creates a new context menu that interacts with a CollectionRecord. * * @param record The selected record. * * @return the context menu with operations that interact with * <i>record</i>. */ protected Menu createContextMenu(final CollectionRecord record) { Menu menu = new Menu(); MenuItem open = new MenuItem(messages.open_project()); open.addClickHandler(new ClickHandler() { public void onClick(MenuItemClickEvent evt) { getFlys().openProject(record.getCollection().identifier()); } }); MenuItem del = new MenuItem(messages.delete_project()); del.addClickHandler(new ClickHandler() { public void onClick(MenuItemClickEvent evt) { SC.warn("Removing projects is not implemented."); } }); menu.addItem(open); menu.addItem(del); return menu; } /** * The init() method handles the layout stuff for this widget. */ protected void init() { setWidth(300); setHeight100(); setShowResizeBar(true); setShowEdges(false); setLayoutMargin(0); setLayoutAlign(VerticalAlignment.TOP); Label title = new Label(messages.projects()); title.setHeight("20"); title.setMargin(5); title.setWidth100(); title.setStyleName("fontLightSmall"); Canvas titleWrapper = new Canvas(); titleWrapper.setStyleName("bgBlueDark"); titleWrapper.setWidth100(); titleWrapper.setHeight("20px"); titleWrapper.addChild(title); Canvas gridWrapper = new Canvas(); gridWrapper.setPadding(0); titleWrapper.setWidth100(); gridWrapper.addChild(grid); addMember(titleWrapper); addMember(gridWrapper); } public void onCollectionChange(CollectionChangeEvent event) { GWT.log("ProjectList.onCollectionChange"); updateUserCollections(); } protected void updateUserCollections() { Config config = Config.getInstance(); String url = config.getServerUrl(); String locale = config.getLocale(); userCollectionsService.getUserCollections(url, locale, user.identifier(), new AsyncCallback<Collection[]>() { public void onFailure(Throwable caught) { GWT.log("Could not recieve a list of user collections."); GWT.log(caught.getMessage()); } public void onSuccess(Collection[] collections) { int num = collections != null ? collections.length : 0; GWT.log("Received " + num + " user collections."); if (num == 0) { return; } updateGrid(collections); } } ); } protected void clearGrid() { ListGridRecord[] records = grid.getRecords(); for (ListGridRecord record: records) { grid.removeData(record); } } protected void updateGrid(Collection[] collections) { clearGrid(); for (Collection c: collections) { grid.addData(new CollectionRecord(c)); } } /** * Builds the field in the grid that displays the creation time of a * project. * * @return the grid field. */ protected ListGridField buildDateField() { ListGridField date = new ListGridField("creationTime", "creationTime"); date.setType(ListGridFieldType.DATE); date.setCellFormatter(new CellFormatter() { public String format(Object value, ListGridRecord rec, int r, int c) { if (value == null) { return null; } DateTimeFormat dtf = DateTimeFormat.getFormat( messages.datetime_format()); return dtf.format((Date)value); } }); date.setWidth(105); date.setAlign(Alignment.LEFT); return date; } /** * Builds the field in the grid that displays the name of a project. * * @return the grid field. */ protected ListGridField buildNameField() { ListGridField name = new ListGridField("name", "name"); name.setType(ListGridFieldType.TEXT); name.setCellFormatter(new CellFormatter() { public String format(Object value, ListGridRecord record, int row, int col) { String n = (String) value; int len = n.length(); if (len < 30) { return n; } int sec = len - 15; return n.substring(0, 14) + "..." + n.substring(sec, len-1); } }); name.setWidth(195); name.setAlign(Alignment.LEFT); return name; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :