280 lines
8.6 KiB
Java
280 lines
8.6 KiB
Java
/**
|
|
*
|
|
*/
|
|
package org.gcube.portlets.widgets.wsexplorer.client.view;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.List;
|
|
|
|
import org.gcube.portlets.widgets.wsexplorer.client.Util;
|
|
import org.gcube.portlets.widgets.wsexplorer.client.WorkspaceExplorerConstants;
|
|
import org.gcube.portlets.widgets.wsexplorer.client.view.grid.SortedCellTable;
|
|
import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
|
|
import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
|
|
import org.gcube.portlets.widgets.wsexplorer.shared.Item;
|
|
import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
|
|
|
|
import com.github.gwtbootstrap.client.ui.constants.AlertType;
|
|
import com.google.gwt.core.client.GWT;
|
|
import com.google.gwt.event.shared.HandlerManager;
|
|
import com.google.gwt.user.cellview.client.SimplePager;
|
|
import com.google.gwt.user.cellview.client.SimplePager.TextLocation;
|
|
import com.google.gwt.user.client.Window;
|
|
import com.google.gwt.user.client.rpc.AsyncCallback;
|
|
import com.google.gwt.user.client.ui.VerticalPanel;
|
|
import com.google.gwt.view.client.AsyncDataProvider;
|
|
import com.google.gwt.view.client.HasData;
|
|
import com.google.gwt.view.client.Range;
|
|
|
|
|
|
/**
|
|
* The Class WorkspaceExplorerPaginated.
|
|
*
|
|
* @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
|
|
* Jul 5, 2017
|
|
*/
|
|
public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
|
|
|
|
private VerticalPanel vPanel = new VerticalPanel();
|
|
|
|
private static WorkspaceExplorerPaginated INSTANCE;
|
|
|
|
//private ListDataProvider<Item> dataProvider = new ListDataProvider<Item>();
|
|
|
|
private static MyCustomDataProvider<Item> dataProvider = new MyCustomDataProvider<Item>();
|
|
|
|
protected boolean loadGcubeProperties = false;
|
|
|
|
/**
|
|
* Instantiates a new workspace explorer paginated.
|
|
*
|
|
* @param eventBus the event bus
|
|
* @param filterCriteria the filter criteria
|
|
* @param showableTypes the showable types
|
|
* @param selectableTypes the selectable types
|
|
* @param displayProperties the display properties
|
|
* @param showGcubeInfo the show gcube info
|
|
* @param sortByColumn the sort by column
|
|
* @param fields the fields
|
|
*/
|
|
public WorkspaceExplorerPaginated(
|
|
HandlerManager eventBus, FilterCriteria filterCriteria,
|
|
ItemType[] showableTypes, ItemType[] selectableTypes,
|
|
List<String> displayProperties, boolean showGcubeInfo,
|
|
DISPLAY_FIELD sortByColumn, DISPLAY_FIELD[] fields) {
|
|
super(eventBus, filterCriteria, showableTypes, selectableTypes, displayProperties, showGcubeInfo, sortByColumn, dataProvider);
|
|
INSTANCE = this;
|
|
}
|
|
|
|
|
|
/**
|
|
* Gets the asycn data provider.
|
|
*
|
|
* @return the asycn data provider
|
|
*/
|
|
public AsyncDataProvider<Item> getAsycnDataProvider(){
|
|
return (AsyncDataProvider<Item>) getCellTable().getDataProvider();
|
|
//return new MyCustomDataProvider<Item>();
|
|
}
|
|
|
|
|
|
/**
|
|
* Gets the cell tale.
|
|
*
|
|
* @return the cell tale
|
|
*/
|
|
public SortedCellTable<Item> getCellTable(){
|
|
return getItTables().getCellTable();
|
|
}
|
|
|
|
/**
|
|
* Load folder.
|
|
*
|
|
* @param item the item
|
|
* @param loadGcubeProperties the load gcube properties
|
|
* @param startIdx the start idx
|
|
* @param limit the limit
|
|
* @throws Exception the exception
|
|
*/
|
|
public void loadFolder(final Item item, final boolean loadGcubeProperties, final int startIdx, final int limit) throws Exception {
|
|
GWT.log("loading folder data");
|
|
//super.loadFolder(item, loadGcubeProperties);
|
|
this.loadGcubeProperties = loadGcubeProperties;
|
|
setLoading();
|
|
if(!item.isFolder())
|
|
throw new Exception("Item is not a folder");
|
|
|
|
if(item.getId()==null || item.getId().isEmpty())
|
|
throw new Exception("Item id is null or empty");
|
|
|
|
// we make a copy of showable types
|
|
final List<ItemType> showableTypesParam = new ArrayList<ItemType>(showableTypes);
|
|
|
|
// we get sure that folders are displayed
|
|
for (ItemType folder : Util.FOLDERS) {
|
|
if (!showableTypesParam.contains(folder))
|
|
showableTypesParam.add(folder);
|
|
}
|
|
|
|
final boolean purgeEmpyFolders = !showEmptyFolders;
|
|
|
|
if(getDisplayingFolderItem()==null || getDisplayingFolderItem().getId()!=item.getId()){
|
|
|
|
WorkspaceExplorerConstants.workspaceNavigatorService.getFolderChildrenCount(item, new AsyncCallback<Integer>() {
|
|
|
|
@Override
|
|
public void onFailure(Throwable caught) {
|
|
}
|
|
|
|
@Override
|
|
public void onSuccess(Integer result) {
|
|
GWT.log("Folder Children count: "+result);
|
|
getAsycnDataProvider().updateRowCount(result, false);
|
|
//final Range range = display.getVisibleRange();
|
|
perfomGetFolderChildren(item, loadGcubeProperties, startIdx, limit, purgeEmpyFolders, showableTypesParam);
|
|
}
|
|
});
|
|
}else
|
|
perfomGetFolderChildren(item, loadGcubeProperties, startIdx, limit, purgeEmpyFolders, showableTypesParam);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Perfom get folder children.
|
|
*
|
|
* @param item the item
|
|
* @param loadGcubeProperties the load gcube properties
|
|
* @param startIdx the start idx
|
|
* @param limit the limit
|
|
* @param purgeEmpyFolders the purge empy folders
|
|
* @param showableTypesParam the showable types param
|
|
*/
|
|
private void perfomGetFolderChildren(final Item item, boolean loadGcubeProperties, final int startIdx, int limit, boolean purgeEmpyFolders, List<ItemType> showableTypesParam){
|
|
GWT.log("loading workspace folder by item id from server: "+item.getId());
|
|
WorkspaceExplorerConstants.workspaceNavigatorService.getFolder(item, showableTypesParam, purgeEmpyFolders, filterCriteria, loadGcubeProperties, startIdx, limit, new AsyncCallback<Item>() {
|
|
|
|
@Override
|
|
public void onFailure(Throwable caught) {
|
|
Window.alert(caught.getMessage());
|
|
setAlert(caught.getMessage(), AlertType.ERROR);
|
|
GWT.log("Error loading workspace folder from server",caught);
|
|
}
|
|
|
|
@Override
|
|
public void onSuccess(Item result) {
|
|
if(item.getName()==null || item.getName().isEmpty())
|
|
item.setName(result.getName());
|
|
|
|
GWT.log("Returned "+result.getChildren().size() +" children");
|
|
//getItTables().updateItems(result.getChildren(), true);
|
|
getAsycnDataProvider().updateRowData(startIdx, result.getChildren());
|
|
getCellTable().setPageSize(result.getChildren().size()+1);
|
|
//cellList.setVisibleRange(startIdx, result.getChildren().size());
|
|
getCellTable().redraw();
|
|
GWT.log("cellList size: "+getCellTable().getRowCount());
|
|
setDisplayingFolderItem(result);
|
|
}
|
|
});
|
|
}
|
|
|
|
|
|
/**
|
|
* Inits the pagination.
|
|
*
|
|
* @param itemsPerPage the items per page
|
|
*/
|
|
public void initPagination(int itemsPerPage){
|
|
|
|
//dataProvider.updateRowCount(100, true);
|
|
// Add the cellList to the dataProvider.
|
|
//asyncDataProvider.addDataDisplay(cellTable);
|
|
// Create paging controls.
|
|
SimplePager.Resources pagerResources = GWT.create(SimplePager.Resources.class);
|
|
SimplePager pager = new SimplePager(TextLocation.CENTER, pagerResources, false, 0, true);
|
|
pager.setPageSize(itemsPerPage);
|
|
pager.setDisplay(getCellTable());
|
|
vPanel.add(getCellTable());
|
|
vPanel.add(pager);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Gets the pager panel.
|
|
*
|
|
* @return the pager panel
|
|
*/
|
|
public VerticalPanel getPagerPanel(){
|
|
return vPanel;
|
|
}
|
|
|
|
|
|
/**
|
|
* A custom {@link AsyncDataProvider}.
|
|
*
|
|
* @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
|
|
* Jul 5, 2017
|
|
* @param <T> the generic type
|
|
*/
|
|
public static class MyCustomDataProvider<T> extends AsyncDataProvider<T> {
|
|
|
|
/**
|
|
* {@link #onRangeChanged(HasData)} is called when the table requests a
|
|
* new range of data. You can push data back to the displays using
|
|
* {@link #updateRowData(int, List)}.
|
|
*
|
|
* @param display the display
|
|
*/
|
|
@Override
|
|
public void onRangeChanged(HasData<T> display) {
|
|
|
|
// Get the new range.
|
|
final Range range = display.getVisibleRange();
|
|
|
|
// We are creating fake data. Normally, the data will come
|
|
// from a
|
|
// server.
|
|
// int start = range.getStart();
|
|
// int length = range.getLength();
|
|
// List<Item> newData = new ArrayList<Item>();
|
|
// for (int i = start; i < start + length; i++) {
|
|
// newData.add(new Item("Item "+i, "Item "+i, false));
|
|
// }
|
|
// // Push the data to the displays. AsyncDataProvider will
|
|
// // only update
|
|
// // displays that are within range of the data.
|
|
// updateRowData(start, newData);
|
|
|
|
int start = range.getStart();
|
|
int length = range.getLength();
|
|
GWT.log("Range changed: "+start +" "+length);
|
|
|
|
// try {
|
|
// GWT.log("qui");
|
|
// INSTANCE.loadFolder(INSTANCE.getItemSelected(), INSTANCE.loadGcubeProperties, start, length);
|
|
// GWT.log("qua");
|
|
// }
|
|
// catch (Exception e) {
|
|
// // TODO Auto-generated catch block
|
|
// e.printStackTrace();
|
|
// }
|
|
// Item item = new Item(WorkspaceExplorerPaginated.this.getF, folderName, true);
|
|
// WorkspaceExplorerPaginated.this.loadFolder(WorkspaceExplorerPaginated.this.getItemSelected(), super.get,start, length);
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
*/
|
|
public MyCustomDataProvider() {
|
|
|
|
// TODO Auto-generated constructor stub
|
|
}
|
|
}
|
|
|
|
}
|