'Re: [webkit-dev] Support "registerProtocolHandler" in WebKit2'

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List:       webkit-dev
Subject:    Re: [webkit-dev] Support "registerProtocolHandler" in WebKit2
From:       Maciej Stachowiak <mjs () apple ! com>
Date:       2015-05-22 3:26:05
Message-ID: 9B6DC79E-67A9-45BB-83FD-5B1CD79A1B06 () apple ! com
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> On May 21, 2015, at 7:38 PM, Anne van Kesteren <annevk@annevk.nl> wrote:
> 
> On Fri, May 22, 2015 at 1:25 AM, Anders Carlsson <andersca@apple.com> wrote:
> > Sam Weinig 2015-05-15 10:12:54 PDT:
> > > Support for navigator.registerProtocolHandler/unregisterProtocolHandler is not \
> > > something we want to support in WebKit2 at this time as we are not confident it \
> > > is a good Web API. This might be a good conversation for webkit-dev.
> > 
> > I agree with Sam.
> 
> So what else should web-based email or IRC clients or some such use to
> integrate with sites that offer mailto and irc URLs? Especially for
> email it seems like a worthwhile thing to solve. And that there's no
> cross-browser way to do it in 2015 is somewhat of a shame.

I think it's useful to have an API for the "mailto" use case. A lot of people use \
webmail as their default mail client, and it seems nice to make mailto: links do the \
right thing for them. We do allow changing the default Mail reader to a native app, \
at least on Mac. I would almost consider having navigator.registerProtocolHandler \
just for that use case.

On the face of it, the registerProtocolHandler API seems more general than necessary, \
but the actual spec for it has a whitelist of specific schemes, most of which seem \
reasonable for this kind of purpose: https://html.spec.whatwg.org/#custom-handlers \
<https://html.spec.whatwg.org/#custom-handlers>

I am curious what Sam and Anders dislike about this API, and whether it might be \
something we'd want to support at least with a more restricted set of schemes.

(I am more dubious of the content handler aspect.)

Regards,
Maciej

[Attachment #5 (unknown)]

<html><head><meta http-equiv="Content-Type" content="text/html \
charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; \
-webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote \
type="cite" class=""><div class="">On May 21, 2015, at 7:38 PM, Anne van Kesteren \
&lt;<a href="mailto:annevk@annevk.nl" class="">annevk@annevk.nl</a>&gt; \
wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">On Fri, \
May 22, 2015 at 1:25 AM, Anders Carlsson &lt;<a href="mailto:andersca@apple.com" \
class="">andersca@apple.com</a>&gt; wrote:<br class=""><blockquote type="cite" \
class="">Sam Weinig 2015-05-15 10:12:54 PDT:<br class=""><blockquote type="cite" \
class="">Support for navigator.registerProtocolHandler/unregisterProtocolHandler is \
not something we want to support in WebKit2 at this time as we are not confident it \
is a good Web API. This might be a good conversation for webkit-dev.<br \
class=""></blockquote><br class="">I agree with Sam.<br class=""></blockquote><br \
class="">So what else should web-based email or IRC clients or some such use to<br \
class="">integrate with sites that offer mailto and irc URLs? Especially for<br \
class="">email it seems like a worthwhile thing to solve. And that there's no<br \
class="">cross-browser way to do it in 2015 is somewhat of a shame.<br \
class=""></div></div></blockquote><br class=""></div><div>I think it's useful to have \
an API for the "mailto" use case. A lot of people use webmail as their default mail \
client, and it seems nice to make mailto: links do the right thing for them. We do \
allow changing the default Mail reader to a native app, at least on Mac. I would \
almost consider having navigator.registerProtocolHandler just for that use \
case.</div><div><br class=""></div><div>On the face of it, the \
registerProtocolHandler API seems more general than necessary, but the actual spec \
for it has a whitelist of specific schemes, most of which seem reasonable for this \
kind of purpose: <a href="https://html.spec.whatwg.org/#custom-handlers" \
class="">https://html.spec.whatwg.org/#custom-handlers</a></div><div><br \
class=""></div><div>I am curious what Sam and Anders dislike about this API, and \
whether it might be something we'd want to support at least with a more restricted \
set of schemes.</div><div><br class=""></div><div>(I am more dubious of the content \
handler aspect.)</div><div><br \
class=""></div><div>Regards,</div><div>Maciej</div><div><br \
class=""></div></body></html>

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