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Bug
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Resolution: Duplicate
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P2
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None
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1.2.0
-
generic, x86
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generic, windows_nt
Name: gsC80088 Date: 03/01/99
The problem occurs when dragging out of the
middle text box into the upper text box. The
system is hung before the upper text box receives
any message.
The problem occurs in both explorer 4.0 and navigator 4.5
The problem does not occur when using the unaltered class file as
*********************
**Explorer HTML File:
*********************
<html>
<body>
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
width=200 height=200 align="baseline"
codebase="http://java.sun.com/products/plugin/1.1/jinstall-11-win32.cab#Version=1,1,0,0">
<PARAM NAME="code" VALUE="DragDropTest.class">
<PARAM NAME="archive" VALUE="//bparquet/d$/sampleui/dndtest/d/d.jar">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.2">
No JDK 1.2 support for APPLET!!</OBJECT>
</body>
</html>
**********************
**Navigator HTML File:
**********************
<html>
<body>
<EMBED type="application/x-java-applet;version=1.1" width=200
height=200 align="baseline" code="DragDropTest.class"
archive="//bparquet/d$/sampleui/dndtest/d/d.jar"
pluginspage="http://java.sun.com/products/plugin/1.1/plugin-install.html">
<NOEMBED>
No JDK 1.1 support for APPLET!!
</NOEMBED>
</EMBED>
<!-- <applet code=TreeApplet height=100% width=100%> -->
<!-- </applet> -->
</body>
</html>
*************************
** Class File
*************************
/*
* Test Program for JDK1.2
* Copyright xxxxx Limited 1998
*
* Test case for class java.awt.xxxxx.*
*
*/
import java.applet.*;
import java.awt.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import java.awt.event.*;
import java.io.*;
public class DragDropTest extends Applet { //Frame {
public static int WIDTH = 600;
public static int HEIGHT = 400;
private Target target;
private Source source;
// Target
class Target extends TextArea implements DropTargetListener {
private DropTarget target;
public Target(String text) {
super(text);
this.target = new DropTarget(this, DnDConstants.ACTION_COPY, this);
this.setDropTarget(target);
}
// Interface DropTargetListner
public void dragEnter(DropTargetDragEvent dtde) {
System.out.println("[Target]-dragEnter");
System.out.println(" Source Actions = " + dtde.getSourceActions() );
DataFlavor df[] = dtde.getCurrentDataFlavors();
System.out.println(" DataFlavor[] Count = " + df.length );
for (int i = 0; i < df.length; i++) {
System.out.println(" MIMEType[" + i + "]=" + df[i].getMimeType() );
if (df[i].equals(DataFlavor.plainTextFlavor)) {
// Accept the drag
System.out.println(" Accept the drag!!");
dtde.acceptDrag( DnDConstants.ACTION_COPY );
return;
}
}
// Reject the drag
System.out.println(" Reject the drag!!");
dtde.rejectDrag();
}
public void dragOver(DropTargetDragEvent dtde) {
System.out.println("[Target]-dragOver");
}
public void dropActionChanged(DropTargetDragEvent dtde) {
System.out.println("[Target]-dropActionChanged");
}
public void dragScroll(DropTargetDragEvent dtde) {
System.out.println("[Target]-dragScroll");
}
public void dragExit(DropTargetEvent dte) {
System.out.println("[Target]-dragExit");
}
public void drop(DropTargetDropEvent dtde) {
System.out.println("[Target]-dropped");
dtde.acceptDrop(DnDConstants.ACTION_COPY);
Transferable trans = dtde.getTransferable();
DataFlavor df[] = dtde.getCurrentDataFlavors();
// DataFlavor df[] = trans.getTransferDataFlavors();
Object obj = null;
try {
for (int i = 0; i < df.length; i++) {
System.out.println("df[" + i + "]=" + df[i] );
System.out.println(" MIMEType[" + i + "]=" + df[i].getMimeType() );
if (df[i].equals (DataFlavor.plainTextFlavor)) {
obj = trans.getTransferData(df[i]);
}
}
if (obj == null) {
throw new Error("Found plainTextFlavor put null value!");
}
System.out.println(" obj type is " + obj.getClass());
if (obj != null && obj instanceof InputStream) {
InputStream input = (InputStream)obj;
StringBuffer str = new StringBuffer();
byte[] buffer = new byte[64];
int count = input.read(buffer);
System.out.println("InputStream Read = "+Integer.toString(count));
while (count != -1) {
str.append(new String(buffer, 0, count));
count = input.read(buffer);
}
input.close();
System.out.println("str is " + str.toString());
this.setText(str.toString());
}
else {
if ( obj instanceof String ) {
this.setText((String)obj);
}
}
}
catch (Exception e) {
e.printStackTrace();
}
finally {
try {
target.getDropTargetContext().dropComplete(true);
}
catch (Exception ignore){}
}
}
}
// Source
class Source extends TextArea implements DragSourceListener, DragGestureListener {
DragSource source;
DragGestureRecognizer dgr;
Image dragImage = null;
TextData transferable;
public Source(String text) {
super(text);
this.source = new DragSource();
//this.dgr = source.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY, this);
this.dgr = new MyMouseDragGestureRecognizer(this.source, this, DnDConstants.ACTION_COPY, this);
this.transferable = new TextData(this);
// this.dragImage = ???;
//this.addMouseListener(new Mouse(this));
}
/*
* TextData
*/
public class TextData implements Transferable {
TextComponent text;
public TextData(TextComponent text) {
this.text = text;
}
// Interface Transferable
public DataFlavor[] getTransferDataFlavors() {
DataFlavor[] flavors = new DataFlavor[1];
flavors[0] = DataFlavor.plainTextFlavor;
return flavors;
}
public boolean isDataFlavorSupported(DataFlavor flavor) {
return (flavor.equals(DataFlavor.plainTextFlavor));
}
public Object getTransferData(DataFlavor flavor)
throws UnsupportedFlavorException, IOException {
// return text.getSelectedText();
return text.getText();
}
}
/*
* MyMouseDragGestureRecognizer
*/
class MyMouseDragGestureRecognizer extends MouseDragGestureRecognizer {
public MyMouseDragGestureRecognizer(DragSource ds, Component c, int actions, DragGestureListener dgl) {
super(ds, c, actions, dgl);
}
public void mousePressed(MouseEvent e) {
System.out.println("mousePressed");
appendEvent(e);
fireDragGestureRecognized(DnDConstants.ACTION_COPY, e.getPoint());
}
}
/*
* Mouse
*/
public class Mouse extends MouseAdapter {
protected Source source;
public Mouse(Source s) {
super();
this.source = s;
}
public void mousePressed(MouseEvent e) {
java.util.List eventlist;
eventlist = new java.util.ArrayList();
eventlist.add(e);
//if (source.getSelectionStart() != source.getSelectionEnd()) {
DragGestureEvent dge = new DragGestureEvent(source.dgr, DnDConstants.ACTION_COPY, new Point(0,0), eventlist);
source.source.startDrag(dge,
DragSource.DefaultCopyDrop,
source.dragImage,
new Point(0,0),
source.transferable,
source);
//}
}
}
// Interface DragSourceListener
public void dragEnter(DragSourceDragEvent dsde) {
System.out.println("[Source]-dragEnter");
}
public void dragOver(DragSourceDragEvent dsde) {
System.out.println("[Source]-dragOver");
}
public void dropActionChanged(DragSourceDragEvent dsde) {
System.out.println("[Source]-dropActionChanged");
}
public void dragGestureChanged(DragSourceDragEvent dsde) {
System.out.println("[Source]-dragGestureChanged");
}
public void dragExit(DragSourceEvent dse) {
System.out.println("[Source]-dragExit");
}
public void dragDropEnd(DragSourceDropEvent dsde) {
System.out.println("[Source]-dragDropEnd");
}
// Interface DragGestureListener
public void dragGestureRecognized(DragGestureEvent dge) {
System.out.println("[Source]-dragGestureRecognized");
source.startDrag(dge,
DragSource.DefaultCopyDrop,
dragImage,
new Point(0,0),
transferable,
this);
}
}
public void init ()
{
this.setLayout(new GridLayout(3, 1));
this.target = new Target("\uff24\uff52\uff4f\uff50\u30a8\u30ea\u30a2\npull it over here!");
this.add(target);
this.source = new Source("\uff24\uff52\uff41\uff47\u30a8\u30ea\u30a2\nput me over there!");
this.add(source);
this.add(new TextArea("\u305f\u3060\u306e\u30c6\u30ad\u30b9\u30c8\u30a8\u30ea\u30a2\n\uff9c\uff70\uff84\uff9e\uff8a\uff9f\uff6f\uff84\uff9e/\uff74\uff78\uff7d\uff8c\uff9f\uff9b\uff70\uff97\u304b\u3089"));
enableEvents(AWTEvent.WINDOW_EVENT_MASK);
}
//protected void processWindowEvent(WindowEvent e) {
//if (e.getID() == WindowEvent.WINDOW_CLOSING) {
//System.exit(0);
//}
//super.processWindowEvent(e);
//}
}
(Review ID: 47466)
======================================================================
- duplicates
-
-
- Closed
-