How to drag and drop between portlets?
Howdy!
Could someone please be kind enough to show me how to drag and drop data between portlets. I want to select an icon, drag it to an application and launch the file associated with the icon in the application.
I can do it within a portlet with some js functions but when I try it between portlets (on the same page)I see the forbiden sign.
Thanks
Jeff Graber
Hi
thanks for the advice. However, that is what I had done. Here is the code in the jsp file for the destination portlet and it does not work. If you have any ideas, thanks!
<%@ page language="java" contentType="text/html;charset=UTF-8"%>
<%@ taglib uri="netui-tags-databinding.tld" prefix="netui-data"%>
<%@ taglib uri="netui-tags-html.tld" prefix="netui"%>
<%@ taglib uri="netui-tags-template.tld" prefix="netui-template"%>
<netui:html>
<head>
<title>
MS Word Portlet
</title>
<script language="JavaScript" src="../js/common.js"></script>
<script language="JavaScript" src="../js/containers.js"></script>
<script language="JavaScript" src="../js/document.js"></script>
</head>
<body>
Application Village Portlet
<p>TextOre
| <a id="MS Word" ondrop="sendInfo(this.id)" ondragover="fnCancelDefault()"><img src="/Jime/images/WORDY.gif" alt="Drag one or more documents here to open with MS Word" border="0"></img></a>
| <a id="MS Excel" ondrop="sendInfo (this.id);" ondragover="fnCancelDefault()"><img src="/Jime/images/EXCELY.gif" alt="Drag one or more documents here to open with MS Excel" border="0"></img></a>
| <a id="MS PowerPoint" ondrop="sendInfo(this.id);" ondragover="fnCancelDefault()"><img src="/Jime/images/PowerPointY.gif" alt="Drag one or more documents here to open with MS PowerPoint" border="0"></img></a>
| <a id="Trash" ondrop="sendInfo(this.id);" ondragover="fnCancelDefault()"><img src="/Jime/images/trashcan.gif" alt="Drag one or more documents here to delete" border="0"></img></a>
</body>
</netui:html>
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How to drag and drop tab nodes between tab panes
I'm working on example from this tutorial( Drag-and-Drop Feature in JavaFX Applications | JavaFX 2 Tutorials and Documentation ). Based on the tutorial I want to drag tabs between two tabs. So far I managed to create this code but I need some help in order to finish the code.
Source
tabPane = new TabPane();
Tab tabA = new Tab();
Label tabALabel = new Label("Main Component");
tabPane.setOnDragDetected(new EventHandler<MouseEvent>()
@Override
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What is the proper way to insert the content of the tab as object? Into the tutorial simple text is transferred. How I must modify this line content.put(DataFormat.PLAIN_TEXT, tabPane);?
And what is the proper way to insert the tab after I drag the tab:
Destination
tabPane.setOnDragDropped(new EventHandler<DragEvent>()
@Override
public void handle(DragEvent event)
/* data dropped */
/* if there is a string data on dragboard, read it and use it */
Dragboard db = event.getDragboard();
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I suppose that this transfer can be accomplished?
Ref javafx 2 - How to drag and drop tab nodes between tab panes - Stack OverflowI would use a graphic (instead of text) for the Tabs and call setOnDragDetected on that graphic. That way you know which tab is being dragged. There's no nice way to put the Tab itself into the dragboard as it's not serializable (see https://javafx-jira.kenai.com/browse/RT-29082), so you probably just want to store the tab currently being dragged in a property.
Here's a quick example; it just adds the tab to the end of the current tabs in the dropped pane. If you wanted to insert it into the nearest location to the actual drop you could probably iterate through the tabs and figure the coordinates of each tab's graphic, or something.
import java.util.Random;
import javafx.application.Application;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.input.ClipboardContent;
import javafx.scene.input.DragEvent;
import javafx.scene.input.Dragboard;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.TransferMode;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class DraggingTabPane extends Application {
private static final String TAB_DRAG_KEY = "tab" ;
private ObjectProperty<Tab> draggingTab ;
@Override
public void start(Stage primaryStage) {
draggingTab = new SimpleObjectProperty<>();
TabPane tabPane1 = createTabPane();
TabPane tabPane2 = createTabPane();
VBox root = new VBox(10);
root.getChildren().addAll(tabPane1, tabPane2);
final Random rng = new Random();
for (int i=1; i<=8; i++) {
final Tab tab = createTab("Tab "+i);
final StackPane pane = new StackPane();
int red = rng.nextInt(256);
int green = rng.nextInt(256);
int blue = rng.nextInt(256);
String style = String.format("-fx-background-color: rgb(%d, %d, %d);", red, green, blue);
pane.setStyle(style);
final Label label = new Label("This is tab "+i);
label.setStyle(String.format("-fx-text-fill: rgb(%d, %d, %d);", 256-red, 256-green, 256-blue));
pane.getChildren().add(label);
pane.setMinWidth(600);
pane.setMinHeight(250);
tab.setContent(pane);
if (i<=4) {
tabPane1.getTabs().add(tab);
} else {
tabPane2.getTabs().add(tab);
primaryStage.setScene(new Scene(root, 600, 600));
primaryStage.show();
public static void main(String[] args) {
launch(args);
private TabPane createTabPane() {
final TabPane tabPane = new TabPane();
tabPane.setOnDragOver(new EventHandler<DragEvent>() {
@Override
public void handle(DragEvent event) {
final Dragboard dragboard = event.getDragboard();
if (dragboard.hasString()
&& TAB_DRAG_KEY.equals(dragboard.getString())
&& draggingTab.get() != null
&& draggingTab.get().getTabPane() != tabPane) {
event.acceptTransferModes(TransferMode.MOVE);
event.consume();
tabPane.setOnDragDropped(new EventHandler<DragEvent>() {
@Override
public void handle(DragEvent event) {
final Dragboard dragboard = event.getDragboard();
if (dragboard.hasString()
&& TAB_DRAG_KEY.equals(dragboard.getString())
&& draggingTab.get() != null
&& draggingTab.get().getTabPane() != tabPane) {
final Tab tab = draggingTab.get();
tab.getTabPane().getTabs().remove(tab);
tabPane.getTabs().add(tab);
event.setDropCompleted(true);
draggingTab.set(null);
event.consume();
return tabPane ;
private Tab createTab(String text) {
final Tab tab = new Tab();
final Label label = new Label(text);
tab.setGraphic(label);
label.setOnDragDetected(new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
Dragboard dragboard = label.startDragAndDrop(TransferMode.MOVE);
ClipboardContent clipboardContent = new ClipboardContent();
clipboardContent.putString(TAB_DRAG_KEY);
dragboard.setContent(clipboardContent);
draggingTab.set(tab);
event.consume();
return tab ; -
How to drag and drop a sub tree between 2 treeview?
Suppose I have 2 tree rendered in 2 treeview. Then I want to drag and drop any subtree on any node between the 2 tree.
For example, in tree 1, if I drag node node1 and drop it on tree 2 node node2. I want all nodes from node1(subtree) moved to node 2 in tree 2.
How can I do it? Should I code for treeview 1 begindrag event, and code for treeview 2 dragenter event?
and how to move a sub tree with pb built-in function?Hi Kent,
I have just experimented with drag and drop between treeviews. Below is your bare minimum and caters for one node only. It does not drag any children along. If you drag an item it loses any children. Although it works both ways and within.
The handle is set in the dragbegin events.
In the dragdrop events you get source as an argument which is a pointer to the treeview where the drag started.
You get the node using GetItem ( ref treeviewitem ), then InsertItemSort as a child of the node dropped on.
NOTE: Must uncheck DisableDragAndDrop property for both treeviews.
// Instance Variable
ulong draggedhandle
type tv_1 from treeview within w_treehop
string dragicon = "Form!"
boolean dragauto = true
boolean disabledragdrop = false
end type
event begindrag;
draggedhandle = handle
end event
event dragdrop;
treeview tvSource
treeviewitem ltvidropped, ltvidragged
tvSource = source
if draggedhandle > 0
if handle <> draggedhandle or tvSource <> this then
tvSource.GetItem( draggedhandle , ltvidragged )
this.GetItem( handle , ltvidropped)
this.Insertitemsort( handle, ltvidragged )
tvSource.Deleteitem( draggedhandle )
draggedhandle = 0
end if
end if
end event
type tv_2 from treeview within w_treehop
string dragicon = "Form!"
boolean dragauto = true
boolean disabledragdrop = false
end type
event begindrag;
draggedhandle = handle
end event
event dragdrop;
treeview tvSource
treeviewitem ltvidropped, ltvidragged
tvSource = source
if draggedhandle > 0
if handle <> draggedhandle or tvSource <> this then
tvSource.GetItem( draggedhandle , ltvidragged )
this.GetItem( handle , ltvidropped)
this.Insertitemsort( handle, ltvidragged )
tvSource.Deleteitem( draggedhandle )
draggedhandle = 0
end if
end if
end event
To carry over nested treeview items (children) you can use FindItem ( draggedhandle, navigationcode )
navigationcode as per help:
ChildTreeItem! The first child of itemhandle.
NextTreeItem! The sibling after itemhandle. A sibling is an item at the same level with the same parent.
HTH
Lars -
How to design a drag and drop between to containment references
Hello,
Can someone help me to desgin a drag and drop between two containment references shared by the same container ?
I want two design this DND between two views : each is displaying one of the two references.
I've tried to use for the target view an EditingDomainDropAdapter with generated item providers. But it is considering the two references as children features for the dragged element and the drop can then be done in the wrong reference.
I've also tried to override generated item providers two only consider the reference viewed in the target view. But in this case the drag and drop command cannot execute because no parent is found for the dragged element.
I've considered too put the item providers adapter factory of the source view in the dragged data, and design an EditingDomainDropAdatper using this factory for building the drag part of the drag an drop command. But it seems to be a big a job...
So I prefer to ask your help to find the wright design for my need.
Best regards,
LaurentOn 05/08/2015 8:44 PM, voiry laurent wrote:
> Hello,
>
> Can someone help me to desgin a drag and drop between two containment
> references shared by the same container ?
>
> I want two design this DND between two views : each is displaying one
> of the two references.
How did you achieve that result? By modifying the item provider's
getChildrenFeatures(Object)?
>
> I've tried to use for the target view an EditingDomainDropAdapter with
> generated item providers. But it is considering the two references as
> children features for the dragged element and the drop can then be
> done in the wrong reference.
Yes,
org.eclipse.emf.edit.provider.ItemProviderAdapter.getChildFeature(Object, Object)
does that. That's why I ask how you specialized it to show only one of
the features, because if you did it by specializing what's returned by
getChildrenFeatures it should only consider the one reference, and not
both...
>
> I've also tried to override generated item providers two only consider
> the reference viewed in the target view. But in this case the drag and
> drop command cannot execute because no parent is found for the dragged
> element.
I'm not sure specifically what you did, but getChildFeature should
return your desired target feature...
>
> I've considered too put the item providers adapter factory of the
> source view in the dragged data, and design an
> EditingDomainDropAdatper using this factory for building the drag part
> of the drag an drop command. But it seems to be a big a job...
Seems not necessary. I imagine each view has its own specialized item
provider, each returning the desired feature for getChildrenFeatures,
and that all else should just work as a result.
>
> So I prefer to ask your help to find the wright design for my need.
>
> Best regards,
> Laurent -
Drag and Drop Between two Panels
Hi,
I am working with Swings,i created two Panels A and B. I kept some GIF or Image in Panel A,i would like to drag the gif object in to Panel B.
when i try like this,my mouse could not communicate with two panels A and B.mouse events working Individualey,i mean mouse events working in same panel.
Plz let me know how to communicate with two different panels with mouse. Drag and Drop between Panel A and Panel B.
Thanking you
MyProblemsYou might check out the Drag and Drop tutorial, especially the section Data Transfer with a Custom Component.
Here's another approach using an overlayed non–opaque JPanel as a transfer device. The image label is transfered to the (fake) glass pane and dragged. On mouse release it is added to the JPanel below. Although I didn't build in any boundry–checking it would be a useful thing. Mostly to ensure a suitable drop target and component location in it.
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.event.*;
public class DraggingTest
public static void main(String[] args)
LeftPanel left = new LeftPanel();
JPanel right = new JPanel();
right.setBackground(new Color(200,240,220));
right.setLayout(null);
JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.weightx = 1.0;
gbc.weighty = 1.0;
gbc.fill = gbc.BOTH;
panel.add(left, gbc);
panel.add(right, gbc);
JPanel glassPanel = new JPanel();
glassPanel.setOpaque(false);
JPanel overlay = new JPanel();
OverlayLayout layout = new OverlayLayout(overlay);
overlay.setLayout(layout);
overlay.add(glassPanel);
overlay.add(panel);
ImageMover mover = new ImageMover(left, right, glassPanel);
glassPanel.addMouseListener(mover);
glassPanel.addMouseMotionListener(mover);
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(overlay);
f.setSize(400,400);
f.setLocation(600,325);
f.setVisible(true);
class LeftPanel extends JPanel
Image image;
JLabel label;
public LeftPanel()
loadImage();
setBackground(Color.white);
setLayout(null);
label = new JLabel(new ImageIcon(image));
label.setName("imageLabel");
Dimension d = label.getPreferredSize();
label.setBounds(40, 40, d.width, d.height);
add(label);
private void loadImage()
String fileName = "images/dukeWaveRed.gif";
try
URL url = getClass().getResource(fileName);
image = ImageIO.read(url);
catch(MalformedURLException mue)
System.out.println(mue.getMessage());
catch(IOException ioe)
System.out.println(ioe.getMessage());
class ImageMover extends MouseInputAdapter
LeftPanel left;
JPanel right, glassPanel;
JPanel activePanel;
Component selectedComponent; // imageLabel
Point offset;
boolean dragging, selected;
public ImageMover(LeftPanel lp, JPanel p, JPanel gp)
left = lp;
right = p;
glassPanel = gp;
offset = new Point();
dragging = false;
selected = false;
public void mousePressed(MouseEvent e)
Point p = e.getPoint();
// which panel is the mouse over
if(!setActivePanel(p));
return;
// get reference to imageLabel or return
selectedComponent = getImageLabel();
if(selectedComponent == null)
return;
Rectangle labelR = selectedComponent.getBounds();
Rectangle panelR = activePanel.getBounds();
if(labelR.contains(p.x - panelR.x, p.y))
activePanel.remove(selectedComponent);
selected = true;
glassPanel.add(selectedComponent);
offset.x = p.x - labelR.x - panelR.x;
offset.y = p.y - labelR.y - panelR.y;
dragging = true;
public void mouseReleased(MouseEvent e)
Point p = e.getPoint();
if(!contains(glassPanel, selectedComponent))
return;
glassPanel.remove(selectedComponent);
setActivePanel(p);
activePanel.add(selectedComponent);
Rectangle r = activePanel.getBounds();
int x = p.x - offset.x - r.x;
int y = p.y - offset.y;
Dimension d = selectedComponent.getSize();
selectedComponent.setBounds(x, y, d.width, d.height);
glassPanel.repaint();
activePanel.repaint();
dragging = false;
public void mouseDragged(MouseEvent e)
if(dragging)
Point p = e.getPoint();
int x = p.x - offset.x;
int y = p.y - offset.y;
Dimension d = selectedComponent.getSize();
selectedComponent.setBounds(x, y, d.width, d.height);
if(!selected)
activePanel.repaint();
selected = false;
glassPanel.repaint();
private boolean contains(JPanel p, Component comp)
Component[] c = p.getComponents();
for(int j = 0; j < c.length; j++)
if(c[j] == comp)
return true;
return false;
private boolean setActivePanel(Point p)
activePanel = null;
Rectangle r = left.getBounds();
if(r.contains(p))
activePanel = left;
r = right.getBounds();
if(r.contains(p))
activePanel = right;
if(activePanel != null)
return true;
return false;
private Component getImageLabel()
Component[] c = activePanel.getComponents();
for(int j = 0; j < c.length; j++)
if(c[j].getName().equals("imageLabel"))
return c[j];
return null;
} -
Drag and Drop between two java applications
Hi,
I am trying to implement drag and drop between two instances of our java application. When i drop the content on the target, the data flavors are transmitted properly, but i get the exception :
java.awt.dnd.InvalidDnDOperationException: No drop current
at sun.awt.dnd.SunDropTargetContextPeer.getTransferData(SunDropTargetContextPeer.java:201)
at sun.awt.datatransfer.TransferableProxy.getTransferData(TransferableProxy.java:45)
at java.awt.dnd.DropTargetContext$TransferableProxy.getTransferData(DropTargetContext.java:359)
at com.ditechcom.consulbeans.TDNDTree.drop(TDNDTree.java:163)
at java.awt.dnd.DropTarget.drop(DropTarget.java:404)
at sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(SunDropTargetContextPeer.java:547)
How can i fix this ?
Thanks a lot,
KarthikPlay with this;-import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.dnd.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
// Credit to bbritna who I stole it from in the 'New To ..' Forum
public class DragComps implements DragGestureListener, DragSourceListener,
DropTargetListener, Transferable{
static final DataFlavor[] supportedFlavors = { null };
static{
try {
supportedFlavors[0] = new DataFlavor(DataFlavor.javaJVMLocalObjectMimeType);
catch (Exception ex) { ex.printStackTrace(); }
Object object;
// Transferable methods.
public Object getTransferData(DataFlavor flavor) {
if (flavor.isMimeTypeEqual(DataFlavor.javaJVMLocalObjectMimeType))
return object;
else return null;
public DataFlavor[] getTransferDataFlavors() {
return supportedFlavors;
public boolean isDataFlavorSupported(DataFlavor flavor) {
return flavor.isMimeTypeEqual(DataFlavor.javaJVMLocalObjectMimeType);
// DragGestureListener method.
public void dragGestureRecognized(DragGestureEvent ev) {
ev.startDrag(null, this, this);
// DragSourceListener methods.
public void dragDropEnd(DragSourceDropEvent ev) { }
public void dragEnter(DragSourceDragEvent ev) { }
public void dragExit(DragSourceEvent ev) { }
public void dragOver(DragSourceDragEvent ev) {
object = ev.getSource(); }
public void dropActionChanged(DragSourceDragEvent ev) { }
// DropTargetListener methods.
public void dragEnter(DropTargetDragEvent ev) { }
public void dragExit(DropTargetEvent ev) { }
public void dragOver(DropTargetDragEvent ev) {
dropTargetDrag(ev); }
public void dropActionChanged(DropTargetDragEvent ev) {
dropTargetDrag(ev); }
void dropTargetDrag(DropTargetDragEvent ev) {
ev.acceptDrag(ev.getDropAction()); }
public void drop(DropTargetDropEvent ev) {
ev.acceptDrop(ev.getDropAction());
try {
Object target = ev.getSource();
Object source = ev.getTransferable().getTransferData(supportedFlavors[0]);
Component component = ((DragSourceContext) source).getComponent();
Container oldContainer = component.getParent();
Container container = (Container) ((DropTarget) target).getComponent();
container.add(component);
oldContainer.validate();
oldContainer.repaint();
container.validate();
container.repaint();
catch (Exception ex) { ex.printStackTrace(); }
ev.dropComplete(true);
public static void main(String[] arg) {
JButton button = new JButton("Drag this button");
JLabel label = new JLabel("Drag this label");
JCheckBox checkbox = new JCheckBox("Drag this check box");
JFrame source = new JFrame("Source Frame");
Container source_content = source.getContentPane();
source.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
source_content.setLayout(new FlowLayout());
source_content.add(button);
source_content.add(label);
JFrame target = new JFrame("Target Frame");
Container target_content = target.getContentPane();
target.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
target_content.setLayout(new FlowLayout());
target_content.add(checkbox);
DragComps dndListener = new DragComps();
DragSource dragSource = new DragSource();
DropTarget dropTarget1 = new DropTarget(source_content,
DnDConstants.ACTION_MOVE, dndListener);
DropTarget dropTarget2 = new DropTarget(target_content,
DnDConstants.ACTION_MOVE, dndListener);
DragGestureRecognizer dragRecognizer1 =
dragSource.createDefaultDragGestureRecognizer(button,
DnDConstants.ACTION_MOVE, dndListener);
DragGestureRecognizer dragRecognizer2 =
dragSource.createDefaultDragGestureRecognizer(label,
DnDConstants.ACTION_MOVE, dndListener);
DragGestureRecognizer dragRecognizer3 =
dragSource.createDefaultDragGestureRecognizer(checkbox,
DnDConstants.ACTION_MOVE, dndListener);
source.setBounds(0, 200, 200, 200);
target.setBounds(220, 200, 200, 200);
source.show();
target.show();
}[/code -
Hi,
How can we develop Drag and Drop (DnD) Portlets. Does Oracle Portlet provide such functionality.Can someone guide me or have any documentation on how to create Java Portlets that can be dragged arround i.e. just like on google site http://www.google.com/ig. I am using 10.1.0.4. ThanksIs there any kind of documentation available as how to build this kind of functionality. What API's to use. Lifefray and StringBeans Portal provides DnD functionality so curious if it's also doable using Oracle Portal and if so how to start on it. I am more interesetd in docs. and API's to use for building our own.
Thanks -
How to drag and drop the af:inputNumberSpinbox in the control panel
Hi,
I am using jdev 11.1.1.4.0
I need the component as <af:inputNumberSpinbox> . Create a data model and how to drag and drop as inputNumberSpinbox in the data control.
normally drog and drop the particular attribute as inputText box only. I want <af:inputNumberSpinbox>.
anythig want to change in the view object control hints itself. help me.
Regards,
ragupathi S.
Edited by: Ragu on Jun 22, 2011 4:45 PMHi,
Can't you drop it as an inputText and then change it in the source to inputNumberSpinbox?
Regards,
Stijn. -
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I would like to have the same behavior with my Java Text Controls.
What can I do to achieve this?There is no configuration for it. It should work.
Can you try it in a different user account. If it works in a different account, then it is likely something in your current user account that is messed up. If it doesn't work in another user account, then it is likely something with Mail, itself.
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That is a rather large request, and indicates that you have likely not spent much time researching the subject before posting. Read up on Swing drag & drop here (http://java.sun.com/docs/books/tutorial/dnd/), then ask specific questions about something you don't understand, problems with your implementation, etc.
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Currently i have a vdividebox which contains two datagrid
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Now I want to display this datagrid in two different browsers
and provide the drag and drop functionality between them.
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Drag and Drop between two list boxes
Hi all
I am working over Drag and Drop .. i have to implement Drag and Drop between two list boxes .. both list box exist in same page ..each list box have number of rows.. please give me some idea ... as i am new for JSP and Servlet...
Thanks in advance
Regards
VaibhavHi all
I am working over Drag and Drop .. i have to
implement Drag and Drop between two list boxes ..
both list box exist in same page ..each list box have
number of rows.. please give me some idea ... as i am
new for JSP and Servlet...
Something close to what you are looking for is Select Mover in Coldtags suite:
http://www.servletsuite.com/jsp.htm -
Drag and drop between computers
Can you drag and drop between computers on the same network? I am using leopard and can move files via the finder; when using screen sharing it would be good to drag and drop between screens.
GHGH wrote:
Can you drag and drop between computers on the same network? I am using leopard and can move files via the finder; when using screen sharing it would be good to drag and drop between screens.
Well, the obvious question is... did you try just dragging them between screens, and what happened? My guess is that it works - but if it doesn't, there's the nifty Get Clipboard Contents/Paste Clipboard contents commands that work between screens, and they work to copy and paste files cross-computer (which is actually much more convenient than drag-n-drop, since you don't have to worry about positioning two windows juuusst right...)
s.
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