Strange question about canvases

[Ninjadoodle]

Hi @enpu

This is kind of a weird question, but is there any way Panda can open 2 browser windows, both updated by the same script?

I'm not really sure if anything like this is possible, but in this case I'm asking on somebody else behalf.

Thank you in advance!

[enpu]

You mean in development? Yes you can open as many browser windows as you want, and all will get updated.

[Ninjadoodle]

Hi @enpu - I mean as a browser app.

Example - someone I know needs a scoring system where there is a timer and 2 windows (separate monitors) and the judges sit by their respective monitor and update their teams score.

As far as I know this is only possible by duplicating the computer screen (2 monitors),  or by stretching a browser window to span more than one monitor (not sure if this works).

There might be other solutions, but I have no idea.

[enpu]

Simplest solution would be to stretch the browser window into two monitors. For this to look good, both monitors should have same resolution.

Otherwise you would need a way for two browser windows to communicate, which would need backend/server.

[Ninjadoodle]

@enpu

Ok, thanks heaps for the reply - I'll get back to them and explain the details

Panda is not only useful for games, but also kettlebell lifting compos lol.

[Wolfsbane]

@Ninjadoodle

Not really a web developer here, but if we're not talking about a massive amount of data, could you just use the local storage trick? (Both writing/reading to a file to update their display. Old 'early network' trick)

Or Broadcast Channels sounds like something like what you're wanting? Shouldn't need a backend/server for this.

 

[Ninjadoodle]

@Wolfsbane - Yeah we're just talking a timer and 2 sets of scores. Not sure if they timer would be precise with Local Storage?

Thanks for the tip btw

[Wolfsbane]

For a timer, yeah, probably not a good idea for Local Storage, especially since it's wrapped inside the browser, and I don't reeeally know what limitations the browser might impose on you when it comes to accessing the local file system.

[enpu]

Broadcast Channel API looks like something that could be used in this: https://developer.mozilla.org/en-US/docs/Web/API/Broadcast_Channel_API

[Ninjadoodle]

@enpu @Wolfsbane - Thanks guys, looks interesting  I will probably go with the easiest solution in this case, but will have a look into broadcast channels a little more, as the API sounds quite useful!

[enpu]

Yeah just stretching one browser window into two monitors is a lot simpler solution. But if that doesn't work, then i would look into the Broadcast Channels API next.