/* Copyright (c) 2011 Zhihua (Dennis) Jiang
 * 
 * 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.
 */

package com.gwtmobile.ui.kitchensink.client.phonegap;

import com.google.gwt.core.client.*;
import com.google.gwt.uibinder.client.*;
import com.google.gwt.user.client.ui.*;
import com.gwtmobile.phonegap.client.*;
import com.gwtmobile.phonegap.client.Camera.*;
import com.gwtmobile.phonegap.client.FileMgr.*;
import com.gwtmobile.ui.client.event.*;
import com.gwtmobile.ui.client.page.*;

public class FileTransferUi extends Page {

    @UiField HTML text;
    private static FileTransferUiUiBinder uiBinder = GWT.create( FileTransferUiUiBinder.class );

    interface FileTransferUiUiBinder extends UiBinder<Widget, FileTransferUi> {
    }

    public FileTransferUi() {
        initWidget( uiBinder.createAndBindUi( this ) );
    }

    @UiHandler("list")
    void onListSelectionChanged( SelectionChangedEvent e ) {
        switch ( e.getSelection() ) {
            case 0:
                transferFile();
                break;
        }
    }

    void transferFile() {
        Camera.getPicture( new Camera.Callback() {

            @Override
            public void onSuccess( String imageData ) {
                String serverUrl = "http://gwtmobile-services.appspot.com/filetransfer";
                FileTransfer ft = FileMgr.newFileTransfer();
                final String lb = "<br/>";
                Notification.activityStart( "Uploading", "Hang in there..." );
                ft.upload( imageData, serverUrl, new FileTransferCallback() {
                    @Override
                    public void onSuccess( FileTransferResult result ) {
                        Notification.activityStop();
                        text.setHTML( "response code: " + result.getResponseCode() + lb +
                                      "bytes sent: " + result.getBytesSent() + lb +
                                      result.getResponse() );
                    }

                    @Override
                    public void onError( FileTransferError error ) {
                        Notification.activityStop();
                        text.setHTML( error.getCode().toString() );
                    }
                }, FileTransferOptions.newInstance().fileKey( "file" ).fileName( imageData.substring( imageData.lastIndexOf( '/' ) + 1 ) )
                                   .mimeType( "image/jpeg" ) );
            }

            @Override
            public void onError( String message ) {
                text.setHTML( "Error: " + message );
            }
        }, new Camera.Options().quality( 50 ).sourceType( SourceType.CAMERA ).destinationType( DestinationType.FILE_URI ).allowEdit( false ) );
    }
}