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litesoft / trunk / GWT_Sandbox / gwtUITrimmed / src / com / gwtmobile / ui / kitchensink / client / phonegap / FileUi.java
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/* Copyright (c) 2010 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.FileMgr.*;
import com.gwtmobile.phonegap.client.FileMgr.Event;
import com.gwtmobile.ui.client.event.*;
import com.gwtmobile.ui.client.page.*;
import com.gwtmobile.ui.client.widgets.ScrollPanel;
public class FileUi extends Page {
private static FileUiUiBinder uiBinder = GWT.create( FileUiUiBinder.class );
@UiField HTML text;
@UiField ScrollPanel scroller;
interface FileUiUiBinder extends UiBinder<Widget, FileUi> {
}
public FileUi() {
initWidget( uiBinder.createAndBindUi( this ) );
}
@UiHandler("list0")
void onList0SelectionChanged( SelectionChangedEvent e ) {
switch ( e.getSelection() ) {
case 0:
getFile();
break;
case 1:
getMetadata();
break;
case 2:
isFile();
break;
case 3:
isDirectory();
break;
case 4:
getFile();
break;
case 5:
getFileInfo();
break;
case 6:
moveTo();
break;
case 7:
copyTo();
break;
case 8:
toURI();
break;
}
}
@UiHandler("list1")
void onList1SelectionChanged( SelectionChangedEvent e ) {
switch ( e.getSelection() ) {
case 0:
getFileParent();
break;
case 1:
createWriter();
break;
case 2:
write();
break;
case 3:
truncate();
break;
case 4:
seek();
break;
case 5:
abort();
break;
case 6:
readAsDataURL();
break;
case 7:
readAsText();
break;
case 8:
remove();
break;
}
}
private void getFile() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
console( "success: get file --" + file.getFullPath() );
}
} );
}
private void getMetadata() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( FileEntry file ) {
file.getMetadata( new MetadataCallback() {
@Override
public void onSuccess( Metadata metadata ) {
console( "succeed: last modification time -- " + metadata.getModificationTime().toString() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void isFile() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( FileEntry file ) {
console( "is file -- " + file.isFile() );
}
} );
}
private void isDirectory() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( FileEntry file ) {
console( "is directory -- " + file.isDirectory() );
}
} );
}
private void getFileInfo() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( FileEntry file ) {
file.file( new FileCallback() {
@Override
public void onSuccess( File file ) {
console(
"Name -- " + file.getName() + "<br/>" +
"Full Path -- " + file.getFullPath() + "<br/>" +
//TODO: bug in phonegap. uncomment code below on 0.9.6.
// "Last Modified -- " + file.getLastModifiedDate().toString() + "<br/>" +
"Size -- " + file.getSize() + "<br/>"
);
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void moveTo() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.getParent( new EntryCallback() {
@Override
public void onSuccess( Entry entry ) {
file.moveTo( entry, "backup-kitchensink.txt", new EntryCallback() {
@Override
public void onSuccess( Entry entry ) {
console( "success: move to -- " + entry.getFullPath() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void copyTo() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.getParent( new EntryCallback() {
@Override
public void onSuccess( Entry entry ) {
file.copyTo( entry, "backup-kitchensink.txt", new EntryCallback() {
@Override
public void onSuccess( Entry entry ) {
console( "success: copy to -- " + entry.getFullPath() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void toURI() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
console( "URI --" + file.toURI() );
}
} );
}
private void getFileParent() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.getParent( new EntryCallback() {
@Override
public void onSuccess( Entry entry ) {
console( "success: get parent -- " + entry.getFullPath() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void createWriter() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.createWriter( new FileWriterCallback() {
@Override
public void onSuccess( FileWriter writer ) {
console( "success: writer created -- " + writer.getFileName() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void write() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.createWriter( new FileWriterCallback() {
@Override
public void onSuccess( FileWriter writer ) {
writer.write( "gwtmobile phonegap kitchen sink" );
console( "success: content writen to file-- " + writer.getReadyState() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void truncate() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.createWriter( new FileWriterCallback() {
@Override
public void onSuccess( FileWriter writer ) {
writer.truncate( 10 );
console( "success: file truncated to -- " + writer.getLength() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void seek() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.createWriter( new FileWriterCallback() {
@Override
public void onSuccess( FileWriter writer ) {
writer.seek( 10 );
console( "success: file positioned to -- " + writer.getPosition() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void abort() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.createWriter( new FileWriterCallback() {
@Override
public void onSuccess( FileWriter writer ) {
writer.write( "some sample text" );
writer.abort();
console( "success: -- " + writer.getReadyState() );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void readAsDataURL() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.file( new FileCallback() {
@Override
public void onSuccess( File file ) {
EventCallback callback = new EventCallback() {
@Override
public void onEvent( Event evt ) {
console( "Event Type: " + evt.getType() + "<br/>" +
"FileName: " + evt.getTarget().getFileName() + "<br/>" +
"Result: " + evt.getTarget().getResult() + "<br/>" +
(evt.getType().equals( "error" ) ? ("Error: " + evt.getTarget().getError().getCode() + "<br/>") : "") +
text.getHTML() );
}
};
text.setText( "" );
FileReader reader = FileMgr.newFileReader();
reader.onLoad( callback );
reader.onLoadStart( callback );
reader.onLoadEnd( callback );
reader.onProgress( callback );
reader.onAbort( callback );
reader.onError( callback );
reader.readAsDataURL( file );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void readAsText() {
getDemoFile( new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.file( new FileCallback() {
@Override
public void onSuccess( File file ) {
EventCallback callback = new EventCallback() {
@Override
public void onEvent( Event evt ) {
console( "Event Type: " + evt.getType() + "<br/>" +
"FileName: " + evt.getTarget().getFileName() + "<br/>" +
"Result: " + evt.getTarget().getResult() + "<br/>" +
(evt.getType().equals( "error" ) ? ("Error: " + evt.getTarget().getError().getCode() + "<br/>") : "") +
text.getHTML() );
}
};
text.setText( "" );
FileReader reader = FileMgr.newFileReader();
reader.onLoad( callback );
reader.onLoadStart( callback );
reader.onLoadEnd( callback );
reader.onProgress( callback );
reader.onAbort( callback );
reader.onError( callback );
reader.readAsText( file );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
} );
}
private void remove() {
console( "" );
DemoCallback callback = new DemoCallback() {
@Override
public void onSuccess( final FileEntry file ) {
file.remove( new FileMgrCallback() {
@Override
public void onSuccess( boolean success ) {
console( text.getHTML() + "remove " + file.getFullPath() + " -- " + success + "<br/>" );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
};
getDemoFile( "kitchensink.txt", callback );
getDemoFile( "backup-kitchensink.txt", callback );
}
private void getDemoFile( final DemoCallback callback ) {
getDemoFile( "kitchensink.txt", callback );
}
private void getDemoFile( final String fileName, final DemoCallback callback ) {
FileMgr.requestFileSystem( LocalFileSystem.PERSISTENT, new FileSystemCallback() {
@Override
public void onSuccess( FileSystem fs ) {
fs.getRoot().getDirectory( "gwtmobile-phonegap", new FileOptions().create( true ), new EntryCallback() {
@Override
public void onSuccess( Entry entry ) {
DirectoryEntry dir = (DirectoryEntry) entry;
dir.getFile( fileName, new FileOptions().create( true ), new EntryCallback() {
@Override
public void onSuccess( Entry entry ) {
FileEntry file = (FileEntry) entry;
callback.onSuccess( file );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
@Override
public void onError( FileError error ) {
console( "error:" + error.getCode() );
}
} );
}
private void console( String html ) {
scroller.setPostionToTop();
text.setHTML( html );
}
interface DemoCallback {
void onSuccess( FileEntry file );
}
}
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