Can anyone suggest a solution?
On Wed, Nov 11, 2009 at 3:23 PM, Richard Rodseth <[email protected]> wrote:
> So I tried this pattern:
>
> private function onClickSave(event:Event):void {
>
> CursorManager.setBusyCursor();
> var generatePDF:Function = function(e:Event):void {
> ....
> savePDF(bytes);
> };
>
> // Delay start so cursor can display
> var timer:Timer = new Timer(1, 1);
> timer.addEventListener(TimerEvent.TIMER, generatePDF);
> timer.start();
> }
>
> private function savePDF(pdfBinary:ByteArray):void {
> var fileRef:FileReference = new FileReference();
> fileRef.save(pdfBinary,"MyReport.pdf");
> }
>
> But then of course I get the security error below from savePDF:
>
> Error: Error #2176: Certain actions, such as those that display a pop-up
> window, may only be invoked upon user interaction, for example by a mouse
> click or button press.
> at flash.net::FileReference/_save()
>
> Any good ideas for displaying a busy cursor or indeterminate progress bar
> while doing a long-running synchronous operation?
>
>
> On Wed, Nov 11, 2009 at 9:59 AM, Richard Rodseth <[email protected]>wrote:
>
>> Thanks. Yes, I wasn't expecting to show dynamically-updating progress
>> during the synchronous operation. Just wanted to pop up something (or change
>> the cursor) before, and remove it after. I'll take a closer look at the
>> AlivePDF docs.
>>
>>
>> On Wed, Nov 11, 2009 at 6:24 AM, ag_rcuren
>> <[email protected]>wrote:
>>
>>>
>>>
>>> I am not fully sure how AlivePDF works because I have never used it but I
>>> thought that it could be done asynchronously because I saw a complete event
>>> in the documentation that reads:
>>> "Dispatched when PDF has been generated and available. The save() method
>>> generate this event"
>>>
>>> That to me says that it can be generated asynchronously but like I said I
>>> really dont know.
>>>
>>> As far as showing progress during a synchronous call it is not possible.
>>> This is because the synchronous call does not return until it is done and
>>> thus the UI will never get a chance to update during the process.
>>>
>>> If you want to show something before that is possible. You could use a
>>> timer or you may want to look at the callLater method of displayObject as
>>> this will wait one frame before calling the method you want. This would
>>> allow you to show say a pop up or something so they user could at least see
>>> something.
>>>
>>>
>>> --- In [email protected] <flexcoders%40yahoogroups.com>,
>>> Richard Rodseth <rrods...@...> wrote:
>>> >
>>> > What's a good way to display progress or a busy cursor for a
>>> potentially
>>> > long-running, but synchronous operation (in my case generating a PDF
>>> using
>>> > AlivePDF) ?
>>> >
>>> > As noted here, CursorManager.setBusyCursor doesn't display the cursor
>>> until
>>> > there is no code running, and PopupManager seems to act similarly.
>>> >
>>> > Defer initiation of the operation using a timer?
>>> >
>>>
>>>
>>>
>>
>>
>
