If you want to send me some code or post it here, I'll take a look at it.
Ian

http://examples.roughian.com


2009/7/10 rohan <[email protected]>

>
> HI Ian
>
> I tried Your example it is working very fast. but when i implement
> same in my application it is taking 2 sec delay...
> When i checked it in debug mode, In some file DeferredCommand checking
> while condition. It is executed until execute method is finished
> I guess that is taking time...
>
> thank you
>
>
> On Jul 8, 5:28 pm, Ian Bambury <[email protected]> wrote:
> > I can only imagine that something is executing and causing the delay. In
> > hosted mode, the code below is slow enough to let me see the first popup
> >  ('Close 1') momentarily, but compiled (and run in Chrome) it's too fast
> to
> > see, 'Close 2'. is all I see until I click the button to close it. When
> you
> > click the 'Show Popup' button, it shows Close-1 and then in a deferred
> > command, Close-2.
> > If you put this in a blank project, do you still get a 1-2 sec delay?
> >
> > import com.google.gwt.core.client.EntryPoint;
> > import com.google.gwt.event.dom.client.ClickEvent;
> > import com.google.gwt.event.dom.client.ClickHandler;
> > import com.google.gwt.user.client.Command;
> > import com.google.gwt.user.client.DeferredCommand;
> > import com.google.gwt.user.client.ui.Button;
> > import com.google.gwt.user.client.ui.PopupPanel;
> > import com.google.gwt.user.client.ui.RootPanel;
> >
> > public class Main implements EntryPoint
> > {
> >
> >     public void onModuleLoad()
> >     {
> >         final PopupPanel p1 = new PopupPanel(false, false);
> >         p1.add(new Button("Close 1", new ClickHandler()
> >         {
> >             @Override
> >             public void onClick(ClickEvent event)
> >             {
> >                 p1.hide();
> >             }
> >         }));
> >         RootPanel.get().add(new Button("Show Popup", new ClickHandler()
> >         {
> >
> >             @Override
> >             public void onClick(ClickEvent event)
> >             {
> >                 p1.center();
> >                 DeferredCommand.addCommand(new Command()
> >                 {
> >                     @Override
> >                     public void execute()
> >                     {
> >                         final PopupPanel p2 = new PopupPanel(false,
> false);
> >                         p2.add(new Button("Close 2", new ClickHandler()
> >                         {
> >                             @Override
> >                             public void onClick(ClickEvent event)
> >                             {
> >                                 p2.hide();
> >                             }
> >                         }));
> >                         p2.center();
> >                     }
> >                 });
> >             }
> >         }));
> >     }
> >
> > }
> >
> > Ian
> >
> > http://examples.roughian.com
> >
> > 2009/7/9 rohan <[email protected]>
> >
> >
> >
> > > Hi Ian,
> >
> > > I have Implemented the same thing, while testing the application I
> > > found it was delaying about 1 or 2 sec.
> > > To show the popup show & hide takes about 1 or 2 secs. I have to show
> > > the same Popup in several places. It may cause performance issue.
> > > Is there any better way to do this????
> >
> > > Thanks
> > > Rohan
> >
> > > On Jul 8, 2:33 pm, Ian Bambury <[email protected]> wrote:
> > > > I think the Deferred command is actually a timer set to 1ms, so 1ms
> is
> > > > added.
> > > > Also it will run after everything else that has been queued so far.
> This
> > > > means that other deferred commands issued so far will run first, and
> also
> > > > that any RPC/Requestbuilder requests that have been issued *might*
> have
> > > > returned in the meantime.
> >
> > > > Other than that, actual performance isn't compromised, and the
> > > *perceived*
> > > > response time (by the user) is vastly improved :-)
> >
> > > > Ian
> >
> > > >http://examples.roughian.com
> >
> > > > 2009/7/8 rohan <[email protected]>
> >
> > > > > Thanks Ian Bambury
> >
> > > > > It is working fine,...is it effects the performance ?????
> >
> > > > > --Subbu
> >
> > > > > On Jul 8, 11:50 am, rohan <[email protected]> wrote:
> > > > > > In my situation the code is in If block
> > > > > > if( true) {
> > > > > > popup.show();
> > > > > > store.load() // it takes 5-6 sec.
> > > > > > // It is sequence of steps like server calls, developing front
> end,
> > > > > > other processing.
> > > > > > popup.hide();}
> >
> > > > > > If i execute it like this popup is not shown because popup.show &
> > > hide
> > > > > > both are executing at a time.
> > > > > > I removed popup.hide() to know whether popup is shown or not? It
> is
> > > > > > showing popup after completion of all the process it shows popup.
> > > > > > ( after execution of IF block)
> > > > > > How handle this situation???/
> > > > > > Thanks
> > > > > > Rohan
> >
> > > > > > On Jul 8, 10:42 am, Mikhail M <[email protected]> wrote:
> >
> > > > > > > I suppose you should use listeners. And call method
> popup.hide();
> > > in
> > > > > right
> > > > > > > place
> > > > > > > For  example
> > > > > > > popup.show();
> > > > > > > store.load() // it takes 5-6 sec.
> > > > > > > popup.hide();
> > > > > > > INCORRECT
> >
> > > > > > > but
> > > > > > > popup.show();
> > > > > > > store.addListener(new StoreListenerAdapter() {
> > > > > > >     @Override
> > > > > > >     onLoad() {
> > > > > > >         popup.hide();
> > > > > > >     }});
> >
> > > > > > > works properly
> >
> > > > > > > Check your source code once more and use listeners
> >
> > > > > > > 2009/7/8 rohan <[email protected]>
> >
> > > > > > > > I am showing transparent screen using a popup.
> >
> > > > > > > > On an onclick event of a button Iam showing a popup in an
> ‘if’
> > > block,
> > > > > > > > but the popup is only shown when if returns from the if
> block,
> > > why it
> > > > > > > > behaves like this? Is there any other way to show a popup in
> an
> > > ‘if’
> > > > > > > > block?
> >
> > > > > > > > Below is the code
> >
> > > > > > > > if(Condition){
> > > > > > > > popup.show();
> > > > > > > > do some work;//// it takes 5-6 sec. This time my screen is
> > > blocked
> > > > > > > > with popup
> > > > > > > > popup.hide();
> >
> > > > > > > > }
> >
> > > > > > > > But it is not working, If i remove popup.hide(), popup is
> shown
> > > after
> > > > > > > > the IF block executed. So at that time it is useless
> >
> > > > > > > > Can any one help me in this.
> >
> > > > > > > > Thanks
> > > > > > > > Rohan
> >
> > > > > > > --
> > > > > > > Best wishes
> > > > > > > Mikhail Mamaev
> >
>

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