Hi Jason,
Thanks for you quick reply~
Your solution works in some sense, but the problem I have the "move
node" part is control by the TreePanelListener Adapter():
simpleNTreePanel.addListener(new TreePanelListenerAdapter
() {
public boolean doBeforeMoveNode(Tree tree, TreeNode
node, TreeNode oldParent, TreeNode newParent, int index) {
//update database according to the sorting
return someController.moveQuestion();
//if success return true
});
public void onMoveNode(Tree simpleNTreePanel, TreeNode
node, TreeNode oldParent, TreeNode newParent, int index) {
GWT.log("the node is moving by
TreePanelListener ", null);
//If doBeforeMoveNode() is true, this will run
and the TreeNode will be automatelly moved by TreePanelListener ;
}
}
The only way to stop the moving (onMoveNode() ) is to return "false"
at doBeforeMoveNode().
I'm sure there is some misunderstanding in my logic, but I don't know
what it is, please guard me~
Thanks@
On Feb 27, 11:46 am, Jason Essington <[email protected]>
wrote:
> private void doMove(/*required params*/){
> // node move Implementation
>
> }
>
> public void moveQuestion(TreeNode node, TreeNode oldParent, TreeNode
> newParent, int index){
> // setup
> // call rpc
> service.resorting(/*params*/, new AsyncCallback<Boolean>(){
> public void onSuccess(Boolean result){
> if (result) doMove(/*params*/);
> else /* whine loudly */;
> }
> onFailure(Throwable caught){
> // whine here too
> }});
>
> // do nothing after the call as doMove will be called onSuccess
>
> }
>
> also, read
> this:http://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa...
>
> -jason
>
> On Feb 27, 2009, at 9:30 AM,joeyoungwrote:
>
>
>
> > I'm trying to resort my nodes of the tree and save the new sorting
> > into the database. I want to make sure the save is successful before
> > I move the node, o/w it will display alert.
> > public boolean doBeforeMoveNode(Tree tree, TreeNode
> > node, TreeNode oldParent, TreeNode newParent, int index) {
> > return simpleNTreePanel.moveQuestion
> > (node,oldParent,newParent,index);
> > }
>
> > In moveQuesiton(), i called RPC and it will return a Boolean so me
> > that if it is successful or not.
>
> > public boolean moveQuestion(TreeNode node, TreeNode oldParent,
> > TreeNode newParent, int index) {
> > service.resorting(theNode.getId(), "1", new AsyncCallback() {
>
> > public void onSuccess(Object result) {
> > Boolean result = (Boolean) result;
> > <!-- If result is true
> > moveQusetion() will return true and node will be moved;
> > otherwise
> > Window.alert("ERROR Moving failed");
> > and return false and it stop the node moving
> > -->
> > }
>
> > public void onFailure(Throwable caught) {
> > Window.alert("ERROR Moving failed");
> > }
> > });
> > }
>
> > How can moveQuestion() wait until the RPC return the result?? I don't
> > want to use wait() coz it might took forever or it only take in sec.
>
> > Sorry for the stupid question.
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/Google-Web-Toolkit?hl=en
-~----------~----~----~----~------~----~------~--~---
