Hi Chris,
Thanks for clearing that up!
Well, I haven't implemented one yet but I guess since in Clint's scenario
example he can put the code to for the next dialog to pop up depending on
what the user chooses(yes/no).
This is taken from Sun tutorials:
// open confirm dialog
int n = JOptionPane.showConfirmDialog(
null,
"Would you like green eggs and ham?",
"An Inane Question",
JOptionPane.YES_NO_OPTION);
if(n == JOptionPane.YES_OPTION){
// open new dialog
JOptionPane.showMessageDialog(
null,
"You selected yes.",
"Yes Option",
JOptionPane.INFORMATION_MESSAGE);
}
Now, if only someone can do that in Pivot.
On Tue, Jan 26, 2010 at 10:06 PM, Christopher Brind <
[email protected]> 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
>>>
>>>
>>
>
