/*
* Copyright 2011 Philippe Blanc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package me.l1k3.ui.client;
import me.l1k3.ui.client.inter.DirectFileUploadListener;
import com.google.gwt.dom.client.InputElement;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.FileUpload;
import com.google.gwt.user.client.ui.FormPanel;
import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteEvent;
import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteHandler;
public class DirectFileUpload extends FileUpload {
private FormPanel form;
private HandlerRegistration registration;
private DirectFileUploadListener listener;
public DirectFileUpload(FormPanel form) {
super();
this.form = form;
form.addSubmitCompleteHandler(new SubmitCompleteHandler() {
public void onSubmitComplete(SubmitCompleteEvent event) {
getInputElement().setValue("");
listener.endDirectFileUpload(event.getResults());
}
});
}
public void setDirectFileUploadListener(DirectFileUploadListener listener) {
this.listener = listener;
}
private InputElement getInputElement() {
return getElement().cast();
}
@Override
protected void onLoad() {
super.onLoad();
registration = addDomHandler(new ChangeHandler() {
public void onChange(ChangeEvent event) {
listener.startDirectFileUpload();
form.submit();
}
}, ChangeEvent.getType());
}
@Override
protected void onUnload() {
super.onUnload();
registration.removeHandler();
registration = null;
}
}