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Re: @font-face and slow downloading

From: Yuzo Fujishima <yuzo@google.com>
Date: Fri, 22 Oct 2010 16:22:06 +0900
Message-ID: <AANLkTinZ5PbH7KuYbEXUmJVQmR5WHtitWfsiR22jGJ3Q@mail.gmail.com>
To: David Singer <singer@apple.com>
Cc: "Belov, Charles" <Charles.Belov@sfmta.com>, www-style list <www-style@w3.org>
On Fri, Oct 22, 2010 at 2:01 AM, David Singer <singer@apple.com> wrote:

> On Oct 20, 2010, at 19:17 , Belov, Charles wrote:

> >>
> >> Maybe we should insist on a fallback list including at least
> >> one 'normal' font, for downloadable faces, and say that the
> >> UA 'may' show a fallback before the downloaded font is
> >> available, but if it does, must re-render using the
> >> downloaded font when it becomes available?
> >>
> > But it is an issue if I go to click something and the link is now as I
> > click going to some completely different page because the normal font
> > and the suddenly-available downloaded font have different metrics.
> >

> Yes.  I think that insisting that the author specify a (local) fallback
> font and suggesting (strongly) to the author in a note that it's best if  
> the
> metrics are as similar as possible, to cause the least re-layout  
> disruption,
> may be the way to go.

> On Oct 20, 2010, at 22:11 , Yuzo Fujishima wrote:
> >
> > If we use [localFont] for the tentative drawing, the user will not see
> any
> > changes at the moment the downloading failed.
> >
> > If we use [OtherFont] for the tentative drawing, text is first rendered
> > in [OtherFont] and then in [localFont] at the moment of download  
> failure.

> I think you're saying that you see a value in having the temporary
> substitute and the permanent fallback be different, and specified using
> different syntax.  This was a question I was struggling with: why?

Hi, David,

Sorry if I was unclear.

I think the temporary substitute and the permanent fallback should be the
same if possible.

Put differently, I think the temporary substitute should be the same font as
the font that
is used when all downloads failed.


> David Singer
> Multimedia and Software Standards, Apple Inc.
Received on Friday, 22 October 2010 07:23:07 UTC

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