Problem with Drag & Drop

Inside dragGestureRecognized(DragGestureEvent e)
i have created a image like this
Image objIM objIM = createImage(50,50);
then i called java.awt.dnd.DragGestureEvent
startDrag(Cursor dragCursor, Image dragImage,
Point imageOffset, Transferable transferable,
DragSourceListener dsl)
method with the above image as one of the argument but that image is not at all seen during drag and drop operation can any one explain why it is not seen.

Choose Preferences from the Finder menu, click on the General tab, and check the box for spring-loaded folders.
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Similar Messages

Strange problem with drag&drop!!

hello i hope u can help me.
i have a strange problem but not like the other users with drag&drop in Leopard..
mine is not exactly like this:
http://discussions.apple.com/thread.jspa?threadID=1198982&tstart=3538
i can hold left click and move files but when i need to "drop" them at the .app's window the app rejects the file back! (some of the applications not all!)
what i mean in examples is:
i cannot drag&drop anything in the VLC's player window but i can inside the vlc's "controller" window
i cannot drag&drop a picture in preview
i cannot drag&drop any file in photoshop's new file/empty canvas
i cannot drag&drop a mp3 file in itunes but i can drag&drop a full album folder(only in playlist,not in the player window)!
and i can describe more to show u that it's not about vlc or preview or PS problem, but finder's/leopard problem.
(i thought in the 1st, that it's vlc's problem and i downloaded a lot of versions!)
all the other programs works well, for example i can drag&drop a video to final cut or motion
i can do the same in iMovie (at the space it says"drag&drop media here etc)
and of course i can drag&drop files to desctop,hard disks etc.
i can copy/paste text etc (i can copy/paste texti can copy/paste texti can copy/paste texti can copy/paste text)
i am trying to give you an idea, suggest me what else should i try in order to focus where exactly the problem is!
i hope u give me a solution cause drag&drop is usefull!
thank you
in order to help u, i will describe what i tried so far:
1)repair permissions
2)trash com.apple.finder
3)terminal solution like this: (didn't worked)
sudo su -
cd /
rmdir tmp +*(rmdir: tmp: No such file or directory)*+
ln -s tmp /private/tmp

alex74d wrote:
hello and thanks for your reply
but why you quote only the part of VLC?
One thing at a time. Occam's razor.
and why u believe this is normal?
i am sure that VLC can drag & drop subtitles or the movie in the player window.
and when i say sure, i mean 100%
I disagree. I have tried this since reading your post, on all my VLC versions. It does not work.
You can, however drop a movie onto the VLC icon in the dock. That works fine.
RealPlayer accepts a file dropped on it. I just checked it.
Not all apps accept a file on their output window. Usually only the input window.
i started my windows bootcamp partition before and i saw this works.
and i remember trying VLC in tiger a lot of years before, this was ok.
and yes of course it would be also normal to drop a picture in the photoshop canvas.
so what is not normal here is my problem, if u can help i'm happy if you cannot please don't confuse it more
(sorry if i sound "unclear", english is not my 1st languange)
I will check VLC next time I run Tiger and let you know.
Message was edited by: nerowolfe

Problem with Drag & Drop and multiselection in tables

Hi,
we have a problem concerning drag and drop and multiselection in tables. It is not possible to drag a multiselection of table rows, as the selection event is recognized or handled before the drag event. So before the drag starts, the selection will be changed and only a single row is selected at the position where you started the drag with a mouse click.
There was also a java bug with the id 4521075 regarding this problem a couple of years ago. See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4521075.
This bug has been resolved but in our application we have not enabled drag by setting setDragEnabled(true) on the table as we have an own implementation of a DragSource (which is the table component), and a DragGestureRecognizer to control mimetype and data to be dragged.
So my question is: Is there any solution for this case without calling setDragEnabled(true) on the table? Or is it possible to enable drag on the table and override some method where the drag recognition happens and the transferable object is created?
Thanks,

Thanks for reply,
Steps to reproduce the problem:
1) user clicks the ascending sorting icon in the table(the button get disabled after sorting the table).
2) After sorting user drag and drop some row over another row.
3) Now the table is no longer sorted.
4) If user again wants to sort the table now, he cannot do it because the sorting button is still disabled.
So I want the user to sort the table again, without refreshing the page
Thanks and Regards,
Tarun

Problem with Drag and drop in panel dashboard

Hi
I am having problem with drag and drop in panel dashboard.
I will explain what i am doing.
I am using Oracle three column template in First region i am having a table that showing all customer.
I drag one record from my table and drop it on customer info (CIF) page on second region it is working fine.
my CIF page has a dashboard with 6 panel box. i am showing 6 different jsff in 6 panel box.
I put drop target in each jsff
<af:dropTarget dropListener="#{backingBeanScope.backing_customerinformation.handleItemDrop}"
actions="COPY">
<af:dataFlavor flavorClass="org.apache.myfaces.trinidad.model.RowKeySet"
discriminant="CustomerSearchDnD"/>
</af:dropTarget>
when i put drop target my panel boxes moves only when i drag it to another panel box header not entire part of panel box.
if i remove the drop target then panel box move normally as the example given on: [http://adfui.us.oracle.com:7778/faces-trunk/faces/visualDesigns/dashboard.jspx?_afrLoop=2021391022520156&_afrWindowMode=0&_afrWindowId=null] but in taht case i am not able to drag and drop my data

You must be an Oracle employee as you're referring to a component in the upcoming JDeveloper version which has yet been released to the general public. Oracle employee's are, I believe, directed to post on internal Oracle forums.
CM.

How to move a picture in another folder with drag & drop

I want to move a picture in another folder with drag&drop. I work´s any more. What I do wrong?

Hi all!
Thanks.
The problem was between the flatscreen and the chair...:-) I clicked always on the gray frame around and not in the image.
Now it works!

Import swf file with drag & drop action

Hello!
I created a flash animation with drag & drop.
I imported the swf into Captivate 3, but when I publish the
project, the animation don't work.
Can you suggest me some workaround to understand the problem?
Best regards

Hi kpurple and welcome to our community
When you published the project, did you ensure to copy all
the associated files? Normally the added .SWF files exist as
external files that need to exist in the same folder as your
Captivate files.
Cheers... Rick

Frustratingly, since I upgraded to Yosemite 10.10, I too am having the worst problems with WiFi dropping out. I've never had this problem before on my iMac 27-inch mid 2011 model. Turning WiFi off and then back on again sometimes works. Help please.

Frustratingly, since I upgraded to Yosemite 10.10, I too am having the worst problems with WiFi dropping out. I've never had this problem before on my iMac 27-inch mid 2011 model. Turning WiFi off and then back on again sometimes works. Help please. I've already tried a lot of your suggested fixes, but without success. Why hasn't Apple Fixed this?

Please test after taking each of the following steps that you haven't already tried. Stop when the problem is resolved. Back up all data before making any changes.
Step 1
Take the applicable steps in this support article. The Wireless Diagnostics program generates a large file of information about your system, which would be used by Apple Engineering in case of a support incident. Don't post the contents here.
Step 2
Disconnect all USB 3 devices. If you don't know which are USB 3, disconnect all USB devices except keyboard and mouse.
Step 3
If you're not using a wireless keyboard or trackpad, disable Bluetooth by selecting Turn Bluetooth Off from the menu with the Bluetooth icon. If you don't have that menu, open the Bluetooth preference pane in System Preferences and check the box marked Show Bluetooth in menu bar. Test. If you find that Wi-Fi works better with Bluetooth disabled, you should use the 5 GHz Wi-Fi band. Your router may not support it; in that case, you need a new router.
Step 4
Open the Energy Saver pane in System Preferences and unlock the settings, if necessary. Select the Power Adapter tab, if there is one. Uncheck the box marked
Wake for Wi-Fi network access
if it's checked.
Step 5
Open the Network pane in System Preferences and make a note of your settings in the Wi-Fi service. It may be helpful to take screenshots of the various tabs in the preference pane. If the preference pane is locked, unlock it by clicking the padlock icon and entering your administrator password. Delete Wi-Fi from the service list on the left by selecting it and clicking the minus-sign button at the bottom. Then recreate the service by clicking the plus-sign button and following the prompts.
Step 6
In the Wi-Fi settings, select
Advanced... ▹ TCP/IP ▹ Configure IPv6: Link-local
Click OK and then Apply.
Step 7
Reset the System Management Controller.
Step 8
Reset the PRAM.
Step 9
Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first.
Step 10
Make a "Genius" appointment at an Apple Store, or go to another authorized service center.

Customer layout with drag-drop support

Hi, all
Evtim wrote a greate customer FlowLayout, and Maxim also have a nice customer Horizontal Multiline Layout, but they don't support drag-drop, so anyone could give some idea?

I had worked out, see my post on StakckOverflow http://stackoverflow.com/questions/16101244/customer-layout-with-drag-drop-support

Problem with drag and drop on Mac

Hi, when I run my AIR application on Windows, I'm able to do
the drag and drop.
But when I run the application on Mac, it gave me an
allocation error: unable to allocate region of size <random
number> after I drag and drop thrice.
Anybody knows what's the reason?

Pages does not support the Apple font used for color emoji, so that behavior is normal.
With what app are you reading the yahoo mail? There is really no guarantee than any other email service will show the special Apple font involved.
You should have no problem putting emoji directly into Mail or Text edit via drag drop from the Character Viewer as shown below.
You should also be able to upload graphics here easily by clicking on the camera icon. My email is tom at bluesky dot org.

Problem with Drag and drop manager

I am noticing that the sample provided at
http://livedocs.adobe.com/flex/3/html/help.html?content=dragdrop_7.html is not working when tried on any version of FireFox browser on a Mac OS version 10.6.3.
So my understanding is that there seems to be some problem with the drag and drop manager in Flex when used on Firefox on a Mac OS version 10.6.3.
It will be very helpful if you can provide any work around for this issue. We want to implement the drag and drop feature in a website that we are building for one of our clients.

You must be an Oracle employee as you're referring to a component in the upcoming JDeveloper version which has yet been released to the general public. Oracle employee's are, I believe, directed to post on internal Oracle forums.
CM.

Problem with drag and drop

Hi! I'm having a problem with getting this code working, basically I want to drag and drop two things onto another the things dissapear then it moves onto a new page, the first item works properly but then the second item wont dissapear and remains stuck to the cursor. Heres the code I'd be greatful of any help.
import flash.events.MouseEvent;
import fl.motion.MotionEvent;
stop();
Back6_btn.addEventListener(MouseEvent.CLICK, onBack6Click)
function onBack6Click(event:MouseEvent):void{
    gotoAndPlay("Bedroom2");
    Forward6_btn.addEventListener(MouseEvent.CLICK, onForward6Click)
function onForward6Click(event:MouseEvent):void{
    gotoAndPlay('Brother bit');
var inGran:Number=0;
Gin.addEventListener(MouseEvent.MOUSE_DOWN, dragOn);
Tonic.addEventListener(MouseEvent.MOUSE_DOWN, dragOn);
function dragOn(event:MouseEvent):void {
    event.target.startDrag(false);
    stage.addEventListener(MouseEvent.MOUSE_UP, dragOff);
function dragOff(event:MouseEvent):void {
    event.target.stopDrag();
    if (event.target.dropTarget!=null&&event.target.dropTarget.parent==Gran) {
        event.target.visible=false;
        inGran++;
    stage.removeEventListener(MouseEvent.MOUSE_UP, dragOff);
function checkPage(e:Event):void {
    if (inGran==2) {
        gotoAndPlay("Bedroom1");

you have some mismatched brackets, change your target properties to currentTarget (and i'm not sure you're dropping onto the correct target) but, try:
import flash.events.MouseEvent;
import fl.motion.MotionEvent;
stop();
Back6_btn.addEventListener(MouseEvent.CLICK, onBack6Click)
function onBack6Click(event:MouseEvent):void{
    gotoAndPlay("Bedroom2");
    Forward6_btn.addEventListener(MouseEvent.CLICK, onForward6Click)
function onForward6Click(event:MouseEvent):void{
    gotoAndPlay('Brother bit');
var inGran:Number=0;
Gin.addEventListener(MouseEvent.MOUSE_DOWN, dragOn);
Tonic.addEventListener(MouseEvent.MOUSE_DOWN, dragOn);
function dragOn(event:MouseEvent):void {
event.currentTarget.parent.addChild(event.currentTarget);
    event.target.startDrag(false);
stage.addEventListener(MouseEvent.MOUSE_UP, dragOff);
function dragOff(event:MouseEvent):void {
    event.target.stopDrag();
    if (event.target.dropTarget!=null&&event.target.dropTarget.parent==Gran) {
        event.target.visible=false;
        inGran++;
    stage.removeEventListener(MouseEvent.MOUSE_UP, dragOff);
function checkPage(e:Event):void {
    if (inGran==2) {
        gotoAndPlay("Bedroom1");

Problem with Drag and Drop (TransferHandler)

I have a stern problem with the java.swing.TransferHandler. It shows a design weakness, and because of a tiny glitch I am currently not able to finish my task.
The design weakness is that method importData(JComponent comp, Transferable t) does not pass the dropAction information in the parameter list. The application case in question is a transfer from a JTree to a JTree (might likewise be to/from a JList). The transfer semantics imply that partial success is possible (there are item identity and uniqueness considerations to handle). - I can deal with all detail demands except that I cannot discriminate between COPY and MOVE taking place in the transfer. Also I don't find any possibility to retrieve this information by subclassing TranferHandler or from any other element there.
Is there any expert who knows a solution?

I came up with two solutions. One is I modified my application requirements for the time being so the problem disappears. :)
Second, I had the idea to create a subclass of javax.swing.TransferHandler and copy/override as many methods as necessary to allow for an extra method public boolean importData(JComponent comp, Transferable t, int action) and derive the extra value from a modified method DropHandler.drop(DropTargetDropEvent e) in a copy of the DropHandler.
Whether this really works, I have not tested.
As for your answer, Andre_Uhres, I don't find it elaborate enough that it leads to a solution, hence no stars rewarded. You leave it open how to get hold of the DropTarget events which are dealt with privately in javax.swing.TransferHandler.
I consider the subject closed for my purposes. Thanks very much for your reply!

Problem with Drag and Drop on a JTree

I would like to have a JTree with drag and drop support with the following characteristics:
1) The JTree holds near 100 different kinds of TreeNodes
2) The drag and drop operation uses TreeNodes as Transferable
3) The drop operation adds a new TreeNode child on the TreeNode that accepts the drop
4) There are some rules for a TreeNode to accept the drops by example:
     Type1 can accept Type2
     Type2 can accept Type3
     All other combinations are not allowed
I am using the following classes to support this behavior
JTree
DataFlavor
DragSourceListener
DropTarget
DropTargeListener
DragSource
GestureListener
Transferable
The question is:
How to change the cursor shape when the mouse is over a node to show graphically the drop accepting rules.?
I can not use the the following methods to change the cursor-shape
DropTargetListener.dragEnter
And
DropTargetListener.dragOver
Case they receive a DropTargetDragEvent witch don�t knows nothing about the TreeNode type dragged.
I can not create a TreeNode on the method GestureListener.dragGestureRecognized cause this could not work when dragging between two diffents JVM.

Hello,
You might want to search this forum for this class : DNDTree.java. It pretty much does the job.

Windows Storage Server 2008 - unzip with drag & drop from Windows 7 client fails

Hello.
As i asked this question in German and got no answer so i try it in English now.
I have the following problem:
We have a Windows SBS 2008, where we store our files. If somebody opens a ZIP-file on a network share from a Windows 7 Client (64 Bit) it is possible to drag & drop the content (multiple files) to a directory. So far everything works as expected.
We now have an additional Windows Storage Server 2008 integrated in our domain (Buffalo Tera Station WS-QV8/R5), where we also store files. If somebody opens the same ZIP-file on a network share of this server from a Windows 7 Client and tries to drag &
drop the content the following happens:
1. only one file is extracted and to display the file a refresh of the explorer view is needed.
2. when the drag & drop action is repeated a second file is extracted
Not alle files are extracted and there is no error message or indication why this happens.
The behaviour is reproducible from another Windows 7 Client (32 Bit).
If we try to drag & drop the files from the ZIP-file on the Windows Storage Server network sahre to a directory on the SBS network share all files are extracted correctly.
On the Windows Storage Server itself all files are extracted without problmems. Therefore it must be a problem with the combination of Windows Storage Server und Windows 7 Client accessing the files via network shares.
Are there any ideas where this problem could be located? Has anybody the same phenomenon and maybe a solution for it?
Thanks in advance
Michael Pruss

Hi Michael,
Thank you for clarifying the issue for us.
I am trying to involve someone familiar with this topic to further look at this issue. There might be some time delay. Appreciate your patience.
Thank you for your understanding and support.
Regards
Kevin
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Issue with Drag/Drop of multiple rows from ListView

I am working on a sample application with 2 list views i.e. players and team, and implement drop and drop such that players can be dropped from one list view to the other. Everything is working as expected when there is single selection model is enabled on the source list view. However, if I enabled Multiple selection model and drag 2 or more rows from source list view to target list view, seeing the following exception after the drop is completed.
Exception:
java.lang.IllegalArgumentException: Only serializable objects or ByteBuffer can be used as data with data format [subListPlayers]
at com.sun.javafx.tk.quantum.QuantumClipboard.putContent(QuantumClipboard.java:513)
at javafx.scene.input.Clipboard.setContent(Clipboard.java:230)
1) What should be the DataFormat used in order to be able to drag and drop multiple rows? Looks like we do not have for Object type, so I have created the following one which does not solve the problem.
   private DataFormat dataFormat = new DataFormat("subListPlayers");
2) I have made changes to support serialization on the data object which also does not seem to solve the issue. Tried by implementing Serializable interface as well as by implementing Externalize interface.
Can someone please guide if there is an easy way to implement this behavior?
Code:
public class Player
   private String name;
   public Player(String name)
      this.name = name;
   public String getName()
      return name;
   public void setName(String name)
      this.name = name;
   @Override
   public boolean equals(Object o)
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;
      Player player = (Player) o;
      if (name != null ? !name.equals(player.name) : player.name != null) return false;
      return true;
   @Override
   public int hashCode()
      return name != null ? name.hashCode() : 0;
public class JavaFXDnDApplication extends Application
   private static final ListView<Player> playersListView = new ListView<Player>();
   private static final ObservableList<Player> playersList = FXCollections.observableArrayList();
   private static final ListView<Player> teamListView = new ListView<Player>();
   private static final GridPane rootPane = new GridPane();
   private DataFormat dataFormat = new DataFormat("subListPlayers");
   public static void main(String[] args)
      launch(args);
   @Override
   public void start(Stage primaryStage)
      primaryStage.setTitle("Drag and Drop Application");
      initializeComponents();
      initializeListeners();
      buildGUI();
      populateData();
      primaryStage.setScene(new Scene(rootPane, 400, 325));
      primaryStage.show();
   private void initializeListeners()
      playersListView.setOnDragDetected(new EventHandler<MouseEvent>()
         @Override
         public void handle(MouseEvent event)
            System.out.println("setOnDragDetected");
            Dragboard dragBoard = playersListView.startDragAndDrop(TransferMode.MOVE);
            ClipboardContent content = new ClipboardContent();
//            content.putString(playersListView.getSelectionModel().getSelectedItem().getName());
            content.put(dataFormat, playersListView.getSelectionModel().getSelectedItems());
            dragBoard.setContent(content);
      teamListView.setOnDragOver(new EventHandler<DragEvent>()
         @Override
         public void handle(DragEvent dragEvent)
            dragEvent.acceptTransferModes(TransferMode.MOVE);
      teamListView.setOnDragDropped(new EventHandler<DragEvent>()
         @Override
         public void handle(DragEvent dragEvent)
//            String player = dragEvent.getDragboard().getString();
//            ObservableList<Player> player = (ObservableList<Player>) dragEvent.getDragboard().getContent(dataFormat);
            String player = dragEvent.getDragboard().getString();
            teamListView.getItems().addAll(new Player(player));
            playersList.remove(new Player(player));
            dragEvent.setDropCompleted(true);
   private void buildGUI()
//      rootPane.setGridLinesVisible(true);
      rootPane.setPadding(new Insets(10));
      rootPane.setPrefHeight(30);
      rootPane.setPrefWidth(100);
      rootPane.setVgap(20);
      rootPane.setHgap(20);
      rootPane.add(playersListView, 0, 0);
      rootPane.add(teamListView, 1, 0);
   private void populateData()
      playersList.addAll(
            new Player("Adam"), new Player("Alex"), new Player("Alfred"), new Player("Albert"),
            new Player("Brenda"), new Player("Connie"), new Player("Derek"), new Player("Donny"),
            new Player("Lynne"), new Player("Myrtle"), new Player("Rose"), new Player("Rudolph"),
            new Player("Tony"), new Player("Trudy"), new Player("Williams"), new Player("Zach")
      playersListView.setItems(playersList);
   private void initializeComponents()
      playersListView.setPrefSize(250, 290);
      playersListView.setEditable(true);
      playersListView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
      playersListView.setCellFactory(new Callback<ListView<Player>, ListCell<Player>>()
         @Override
         public ListCell<Player> call(ListView<Player> playerListView)
            return new ListCell<Player>()
               @Override
               protected void updateItem(Player player, boolean b)
                  super.updateItem(player, b);
                  if (player != null)
                     setText(player.getName());
      teamListView.setPrefSize(250, 290);
      teamListView.setEditable(true);
      teamListView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
      teamListView.setCellFactory(new Callback<ListView<Player>, ListCell<Player>>()
         @Override
         public ListCell<Player> call(ListView<Player> playerListView)
            return new ListCell<Player>()
               @Override
               protected void updateItem(Player player, boolean b)
                  super.updateItem(player, b);
                  if (player != null)
                     setText(player.getName());

Yeah, this is a pain. I filed https://javafx-jira.kenai.com/browse/RT-29082 a while back. Go ahead and vote for it if you are inclined...
I think the issue in your case is that the observable list provided by MultipleSelectionModel.getSelectedItems() is not Serializable. So even if you make your Player class Serializable, the list itself isn't. The first thing I would try, I think, is to make Player implement Serializable and then pass in an ArrayList instead of the observable list. So you can do
content.put(dataFormat, new ArrayList<Player>(playersListView.getSelectionModel().getSelectedItems()));
and
List<Player> player = (List<Player>) dragEvent.getDragboard().getContent(dataFormat);
teamListView.getItems().addAll(player);
If that doesn't work, a workaround is just to store the "dragged list" in a property:
final ListProperty<Player> draggedPlayers = new SimpleListProperty<Player>();
// Drag detected handler:
content.putString("players");
draggedPlayers.set(playersListView.getSelectionMode().getSelectedItems());
// Drag dropped handler:
if (dragboard.hasString() && dragboard.getString().equals("players")) {
     teamListView.getItems().addAll(draggedPlayers.get());
     draggedPlayers.set(null);

Problem with Drag & Drop

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