Queries with something else than ?

[daleif]

I've been playing a bit with an application where we load a PDF in an iframe on the left side of the screen. The build in PDF viewers in Firefox and Chrome can react to parts of the URL you give the PDF URL, but you need # not ? as the separator before the "query". Do we have any way of controlling the separator in say ->query(...).

In my POC I just used

 my $url = url_for('pdf'})->query(page => 2);

and did a replacement on $url, might have been nice with something cleaner.

As an example #page=2&zoom=150 would start at page 2 with a specific zoom level.

[kiwiroy]

Is that a query string or a fragment composed like a query_string?

$ perl -Mojo -E 'my $pdf = l q{/output.pdf}; say $pdf->fragment(q{page=2&zoom=150})'
/output.pdf#page=2&zoom=150

[daleif]

Ahh, that is it, never even seen that one before.

Thanks

[jberger]

You could even still use a new instance of Mojo::Parameters to build the query-like content for the fragment

[daleif]

yes, that makes it even cleaner. Especially when we add more config options for zoom etc.

[jhthorsen]

Sounds like you should use query params and not a fragment for this though. Have you considered using https://developer.mozilla.org/en-US/docs/Web/API/History/pushState on the client side?

[daleif]

It works just fine no javascript needed. Though I might switch to using only pdf.js as the internal pdf viewer in chrome does not quite support the same query options as the one in Firefox does (they use pdf.js).

https://github.com/mozilla/pdf.js/wiki/Viewer-options

For now I'm using

 url_for('pdf')->fragment(Mojo::Parameters->new(page => 2, zoom => 'page-width', pagemode => 'none' ));

which works just fine for the proof of concept I was attempting.