com.metadot.book.connectr.client.presenter.FriendPopupPresenter.java Source code

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Here is the source code for com.metadot.book.connectr.client.presenter.FriendPopupPresenter.java

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/** 
 * Copyright 2010 Daniel Guermeur and Amy Unruh
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 *   See http://connectrapp.appspot.com/ for a demo, and links to more information 
 *   about this app and the book that it accompanies.
 */
package com.metadot.book.connectr.client.presenter;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.HasClickHandlers;
import com.google.gwt.event.shared.SimpleEventBus;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.HasText;
import com.google.gwt.user.client.ui.HasWidgets;
import com.google.gwt.user.client.ui.Widget;
import com.metadot.book.connectr.client.event.FriendDeletedEvent;
import com.metadot.book.connectr.client.event.FriendEditEvent;
import com.metadot.book.connectr.client.helper.ClickPoint;
import com.metadot.book.connectr.client.helper.RPCCall;
import com.metadot.book.connectr.client.service.FriendsServiceAsync;
import com.metadot.book.connectr.client.view.FriendPopupView;
import com.metadot.book.connectr.shared.FriendSummaryDTO;

public class FriendPopupPresenter implements Presenter {

    public interface Display {
        HasClickHandlers getEditButton();

        HasClickHandlers getDeleteButton();

        HasText getFriendNameLabel();

        void hide();

        void setName(String displayName);

        void setNameAndShow(String displayName, ClickPoint location);

        Widget asWidget();
    }

    private FriendSummaryDTO friend;
    FriendPopupView popup;

    private final FriendsServiceAsync friendsService;
    private final SimpleEventBus eventBus;
    private Display display;

    public FriendPopupPresenter(FriendsServiceAsync friendsService, SimpleEventBus eventBus, Display display,
            FriendSummaryDTO friend) {
        this.friendsService = friendsService;
        this.eventBus = eventBus;
        this.display = display;
        this.friend = friend;
        bind();
    }

    public void bind() {
        this.display.getEditButton().addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                display.hide();
                eventBus.fireEvent(new FriendEditEvent(friend.getId()));
            }
        });

        this.display.getDeleteButton().addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                display.hide();
                if (Window.confirm("Are you sure?")) {
                    deleteFriend(friend.getId());
                }
            }
        });

    }

    private void deleteFriend(final String id) {

        new RPCCall<String>() {
            @Override
            protected void callService(AsyncCallback<String> cb) {
                friendsService.deleteFriend(id, cb);
            }

            @Override
            public void onSuccess(String idDeleted) {
                eventBus.fireEvent(new FriendDeletedEvent());
            }

            @Override
            public void onFailure(Throwable caught) {
                Window.alert("An error occurred: " + caught.toString());
            }

        }.retry(3);

    }

    public void go() {
    }

    @Override
    public void go(HasWidgets container) {
        // Auto-generated method stub

    }

}