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Could you elaborate on this please?
Andreas Siegrist wrote:
> Hi there
>
> I also did something like that
> All I needed to do is making a Proxy class with a synchronized method.
>
> Andreas
>
> On Jan 26, 2010, at 3:06 PM, Christopher Brind wrote:
>
>> Hi Bob,
>>
>> This isn't really about being modal, but about stopping the flow of
>> execution. For example, in Javascript:
>>
>> Alert.show("hello");
>> Alert.show("world");
>>
>> The second alert doesn't appear until you press OK on the first.
>>
>> In Pivot or Swing (and every other UI framework?) if you popup an Alert
>> processing continues, for instance in Flex:
>>
>> Alert.show("hello");
>> Alert.show("world");
>>
>> The second alert appears immediately and on top of the previous one.
>>
>> Clint wants to achieve the first scenario, but this is not possible with
>> Pivot.
>>
>> Cheers,
>> Chris
>>
>>
>>
>> 2010/1/26 Bob Santos <[email protected]>
>> If I'm not mistaken, in Swing, you can create confirm dialogs(Yes/No),
>> message dialogs or option dialogs by using JOptionPane and also I think they
>> are by default modal(?), which means access to other part of the application
>> is not allowed until interaction with the active dialog is done.
>>
>> You can also create your custom dialog by extending Dialog and specifying
>> the modality.
>>
>> And yes it helps to know that everything you want to do with the UI should
>> be done within the EDT as Greg stated.
>>
>>
>>
>> On Tue, Jan 26, 2010 at 9:40 PM, Greg Brown <[email protected]> wrote:
>> Hi Clint,
>>
>>> Now, my question: Is it possible to achieve behavior like the
>>> Javascript's alert() function with Pivot? That is, I'd like to put up a
>>> simple yes/no "do something"/"please don't" popup on the screen, and
>>> have the app block - the alert doesn't just block input to other
>>> elements - until the user chooses an option, or closes the popup. This
>>> is possible in SWT, I don't know about Swing.
>> Sorry, it is not possible - as you noted, Window#open() is not a blocking
>> call in WTK. Pivot is ultimately based on AWT, which uses a push model for
>> event notifications (vs. pull). If you were to call a blocking method from a
>> user input event such as a button press, no further event processing could
>> occur until that method had returned, and the entire UI would appear to
>> freeze.
>>
>> I personally don't mind the anonymous inner class syntax:
>>
>> dialog.open(owner, new DialogCloseListener() {
>> @Override
>> public void dialogClosed(Dialog dialog, boolean modal) {
>> // Get selected option and act on it
>> }
>> });
>>
>> I actually think this reflects a pretty consistent design - you open the
>> dialog in response to one event (e.g. "button pressed"), and you handle the
>> dialog's result in response to another event (e.g. "dialog closed").
>>
>>> Making the call to Dialog.open() from another thread doesn't have any
>>> effect.
>> Note that, as in Swing, multi-threaded access to UI elements is not
>> supported. All UI operations must be performed on the EDT.
>>
>> Hope this helps,
>> Greg
>>
>>
>>
>
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