001package gwt.material.design.addins.client.fileuploader.events;
002
003/*
004 * #%L
005 * GwtMaterial
006 * %%
007 * Copyright (C) 2015 - 2016 GwtMaterialDesign
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 * 
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 * 
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023
024import com.google.gwt.event.shared.EventHandler;
025import com.google.gwt.event.shared.GwtEvent;
026import gwt.material.design.addins.client.fileuploader.base.HasFileUpload;
027import gwt.material.design.addins.client.fileuploader.base.UploadResponse;
028
029public class SendingEvent<T> extends GwtEvent<SendingEvent.SendingHandler<T>> {
030
031    private static Type<SendingHandler<?>> TYPE;
032
033    public interface SendingHandler<T> extends EventHandler {
034        void onSending(SendingEvent<T> event);
035    }
036
037    public static <T> void fire(HasFileUpload<T> source, T target, UploadResponse response) {
038        if (TYPE != null) {
039            SendingEvent<T> event = new SendingEvent<T>(target, response);
040            source.fireEvent(event);
041        }
042    }
043
044    public static Type<SendingHandler<?>> getType() {
045        return TYPE != null ? TYPE : (TYPE = new Type<SendingHandler<?>>());
046    }
047
048    private final T target;
049    private final UploadResponse response;
050
051    protected SendingEvent(T target, UploadResponse response) {
052        this.target = target;
053        this.response = response;
054    }
055
056    @Override
057    public final Type<SendingHandler<T>> getAssociatedType() {
058        return (Type) TYPE;
059    }
060
061    public T getTarget() {
062        return target;
063    }
064
065    public UploadResponse getResponse() {
066        return response;
067    }
068
069    @Override
070    protected void dispatch(SendingHandler<T> handler) {
071        handler.onSending(this);
072    }
073}