need event when widget has finished started

[hacking-robot]

all is in the topic: need event when widget has finished started
so we can track the loading progress of the whole page.

[addyosmani]

So you want us to provide an onComplete of some sort. We could hook this into RequireJS. Should an onStart also be exposed?

[hacking-robot]

Yep, that would be cool ! I choose Aura for a large project in my company and It would be nice to have this feature. My application receives a json object with all the widgets to load at the first page loading and I want to show a progress bar before everything is ready.

[atesgoral]

I vote for using a Promise instead of a callback.

[hacking-robot]

actually, is this possible ? as when the widget starts it falls into the
user's code with all the views, models etc.. "required" on the user side.

2012/12/2 Ates Goral notifications@github.com

I vote for using a Promise instead of a callback.

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Reply to this email directly or view it on GitHubhttps://github.com/addyosmani/aura/issues/172#issuecomment-10924808.

[tony]

@DexNode @atesgoral We already have an example of this firing on the demo widgets upon start.

I don't see a problem with the core / mediator emitting a signal such as aura.<sandboxName>.initialized so aura.*.initialized could listen, or it could wait for specific ones.

However, there is an aspect to what 'loading' means. I believe that starting a widget in Aura infers loading it.

[addyosmani]

I believe that starting a widget in Aura infers loading it.

Just seconding this. starting == loading in Aura.

I also like the sandboxed initialization event suggested above.

[mbektimirov]

I agree with this issue because now it is only possible to track loading status from require.js, not from a widget. In this case every single widget could be loaded asynchronously. The best way I think is to add 'async' flag to widget config to track async widgets from core separately from others.

[hacking-robot]

Would you add an event emit somewhere here ??:

285 core.data.when.apply($, promises).done(function() {
286 console.log('loaded '+new Date().getTime());
287 core.emptyEmitQueue();
288 });

[addyosmani]

Anyone want to pull request this?

[hacking-robot]

I can't deal with promises atm. I'm learning them. Anyone? Or do we have to wait for 'any' new observer pattern coming ?
We need a deferred with "notify" methods

[addyosmani]

@atesgoral would you be up for this?

[addyosmani]

We've had a few more requests for this. Would be great to tackle if anyone is still interested in putting together a PR for it.