com.agnie.useradmin.main.client.presenter.sahered.ui.ManageContextsCellTable.java Source code

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Here is the source code for com.agnie.useradmin.main.client.presenter.sahered.ui.ManageContextsCellTable.java

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/*******************************************************************************
 * Copyright (c) 2014 Agnie Technologies.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Agnie Technologies - initial API and implementation
 ******************************************************************************/
package com.agnie.useradmin.main.client.presenter.sahered.ui;

import com.agnie.gwt.common.client.rpc.AsyncDP;
import com.agnie.gwt.common.client.rpc.MultiSelectEventTranslator;
import com.agnie.useradmin.common.client.ApplicationConfig;
import com.agnie.useradmin.common.client.base.Sort;
import com.agnie.useradmin.main.client.I18;
import com.agnie.useradmin.main.client.injector.MVPInjector;
import com.agnie.useradmin.main.client.ui.ViewFactory;
import com.agnie.useradmin.persistance.client.enums.SortOrder;
import com.agnie.useradmin.persistance.shared.proxy.ContextPx;
import com.google.gwt.cell.client.TextCell;
import com.google.gwt.core.client.GWT;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.cellview.client.CellTable;
import com.google.gwt.user.cellview.client.Column;
import com.google.gwt.user.cellview.client.ColumnSortEvent.AsyncHandler;
import com.google.gwt.user.cellview.client.ColumnSortList;
import com.google.gwt.user.cellview.client.ColumnSortList.ColumnSortInfo;
import com.google.gwt.user.cellview.client.SimplePager;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.view.client.DefaultSelectionEventManager;
import com.google.gwt.view.client.MultiSelectionModel;
import com.google.gwt.view.client.ProvidesKey;
import com.google.gwt.view.client.Range;
import com.google.inject.Inject;
import com.google.inject.Singleton;

@Singleton
public class ManageContextsCellTable extends Composite {
    interface MyUiBinder extends UiBinder<Widget, ManageContextsCellTable> {
    }

    private static MyUiBinder uiBinder = GWT.create(MyUiBinder.class);
    @UiField
    CellTable<ContextPx> table;

    @UiField
    SimplePager pager;

    AsyncDP<ContextPx> dataProvider;
    private MultiSelectionModel<ContextPx> multiSelectionModel;
    @Inject
    MVPInjector injector;

    public ManageContextsCellTable() {
        initWidget(uiBinder.createAndBindUi(this));
        multiSelectionModel = new MultiSelectionModel<ContextPx>(keyProvider);
        table.setPageSize(ApplicationConfig.getInstance().getPageSize());

        Column<ContextPx, String> name = new Column<ContextPx, String>(new TextCell()) {
            @Override
            public String getValue(ContextPx object) {
                return object.getName();
            }
        };
        table.addColumn(name, I18.messages.name());

        Column<ContextPx, String> description = new Column<ContextPx, String>(new TextCell()) {
            @Override
            public String getValue(ContextPx object) {
                return object.getDescription();
            }
        };
        table.addColumn(description, I18.messages.description());

        VerticalPanel panel = new VerticalPanel();
        Label label = new Label(I18.messages.no_data());
        panel.add(label);
        panel.setCellHorizontalAlignment(label, HasHorizontalAlignment.ALIGN_CENTER);
        table.setEmptyTableWidget(label);
        table.setSelectionModel(multiSelectionModel,
                DefaultSelectionEventManager
                        .<ContextPx>createCustomManager(new MultiSelectEventTranslator<ContextPx>(
                                new MultiSelectEventTranslator.RowSelectCommand<ContextPx>() {
                                    ContextPx selected;

                                    @Override
                                    public void execute() {
                                        getViewFactory().getManageContextsView().setManContextViewData(selected);
                                        getViewFactory().getManageContextsView().enableSaveButton(false);
                                        getViewFactory().getManageContextsView().deleteBtnVisible(true);
                                        getViewFactory().getManageContextsView().setContextToDelete(selected);
                                    }

                                    @Override
                                    public void setSelected(ContextPx selected) {
                                        this.selected = selected;
                                    }
                                })));

        pager.setRangeLimited(true);
        pager.setDisplay(table);
        AsyncHandler columnSortHandler = new AsyncHandler(table);
        table.addColumnSortHandler(columnSortHandler);
    }

    public void setDataProvider(AsyncDP<ContextPx> dataProvider) {
        if (this.dataProvider != null) {
            this.dataProvider.removeDataDisplay(table);
        }
        this.dataProvider = dataProvider;
        this.dataProvider.addDataDisplay(table);
    }

    public void initialize() {
        refreshTable();
    }

    private void refreshTable() {
        table.setRowCount(0, false);
        Range resetrange = new Range(0, table.getPageSize());
        table.setVisibleRangeAndClearData(resetrange, true);
    }

    public void refresh() {
        table.setVisibleRangeAndClearData(table.getVisibleRange(), true);
    }

    public void clearSelection() {
        multiSelectionModel.clear();
    }

    public Sort getSortColumn() {
        ColumnSortList sortList = table.getColumnSortList();
        if (sortList != null && sortList.size() > 0) {
            ColumnSortInfo col = sortList.get(0);

            return new Sort(col.getColumn().getDataStoreName(),
                    (col.isAscending() ? SortOrder.ASC : SortOrder.DESC));
        }
        return null;
    }

    public MultiSelectionModel<ContextPx> getSelectionModel() {
        return this.multiSelectionModel;
    }

    public CellTable<ContextPx> getTable() {
        return this.table;
    }

    ViewFactory getViewFactory() {
        return injector.getDesktopViewFactory();
    }

    public static ProvidesKey<ContextPx> keyProvider = new ProvidesKey<ContextPx>() {

        @Override
        public Object getKey(ContextPx item) {
            return item == null ? null : item.getId();
        }
    };
}