com.toedter.gwt.demo.contacts.client.ui.ContactCell.java Source code

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Here is the source code for com.toedter.gwt.demo.contacts.client.ui.ContactCell.java

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/*******************************************************************************
 * Copyright (c) 2012 Kai Toedter and others.
 * 
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 * 
 * Contributors:
 *     Kai Toedter - initial API and implementation
 ******************************************************************************/

package com.toedter.gwt.demo.contacts.client.ui;

import java.util.List;

import com.google.gwt.cell.client.AbstractCell;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.user.cellview.client.CellList;
import com.google.gwt.user.cellview.client.HasKeyboardSelectionPolicy.KeyboardSelectionPolicy;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.view.client.SelectionChangeEvent;
import com.google.gwt.view.client.SingleSelectionModel;
import com.toedter.gwt.demo.contacts.shared.Contact;

class ContactCell extends AbstractCell<Contact> {
    @Override
    public void render(Context context, Contact value, SafeHtmlBuilder sb) {
        if (value != null) {
            sb.appendEscaped(value.getFirstName() + " " + value.getLastName());
        }
    }
}

public class ContactListView3 extends Composite implements IContactListView {

    private final CellList<Contact> cellList;

    private Presenter presenter;

    public ContactListView3() {
        ContactCell contactCell = new ContactCell();
        cellList = new CellList<Contact>(contactCell);

        cellList.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.ENABLED);

        // Add a selection model to handle user selection.
        final SingleSelectionModel<Contact> selectionModel = new SingleSelectionModel<Contact>();
        cellList.setSelectionModel(selectionModel);
        selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
            @Override
            public void onSelectionChange(SelectionChangeEvent event) {
                Contact selectedContact = selectionModel.getSelectedObject();
                System.out.println("ContactListView2 .onSelectionChange()");
                presenter.select(selectedContact);
            }
        });
        initWidget(cellList);
    }

    @Override
    public void setWidget(IsWidget w) {
        // TODO Auto-generated method stub

    }

    @Override
    public void setPresenter(Presenter presenter) {
        this.presenter = presenter;
    }

    @Override
    public void selectInitialRow(int i) {
        // not used, use setInitialContact instead
    }

    @Override
    public void initialize(List<Contact> contacts) {
        cellList.setRowCount(contacts.size(), true);
        cellList.setRowData(0, contacts);
    }

    @Override
    public void selectInitialContact(Contact contact) {
        cellList.getSelectionModel().setSelected(contact, true);
    }

}