Safari has no logic of its own about which icon goes with which site;
it relies on the icon database for this knowledge.
Safari does have a little logic to pevent the icon in the URL field
from flashing back and forth between a generic and non-generic icon as
you type in a URL.
John
On Sep 18, 2007, at 9:53 AM, Patrick Hanna wrote:
So I do *not* have the 25557 patch and that will help.
What tools are in place to accomplish the behavior that I want? Is
this something that Safari does? I would love to be able to show the
google.com icon until I know the real icon but I don't know how to
use the IconDatabase to accomplish this. For one thing, I don't want
to assume that google.com/search?hl=whatever uses google.com/
favicon.ico. I would rather have either the FrameLoader or the
IconDatabase tell me early on what icon or icon url it *thinks* is
correct until the real url is known.
Pat
On Sep 18, 2007, at 12:46 PM, Brady Eidson wrote:
Hi Patrick,
Could you give a little more context? Are you using ToT WebKit?
On Sep 18, 2007, at 9:27 AM, Patrick Hanna wrote:
Load www.google.com, FrameLoaderClient::dispatchDidReceiveIcon is
called. IconDatabase::iconForPageURL returns an icon, this is
perfect.
Right
Load www.google.com/search?hl=en&q=some_query&btnG=Google+Search,
dispatchDidReceiveIcon is *not* called.
In current ToT WebKit, it should be called for every single page
load. Specifically as of revision 25557 (http://trac.webkit.org/projects/webkit/changeset/25557
)
If I call iconForPageURL *before* the load is finished, I won't
get an icon unless I have already visited the site. If I call it
after the load has finished, this could potentially show the wrong
icon until the load has finished.
This is expected - until you visit a site, the icon database
doesn't know what icon belongs to the site. You might think it
quite obvious that "www.google.com/search?hl=en&q=some_query&btnG=Google+Search
" should use the google site icon, but "www.google.com/search?hl=en&q=some_query&btnG=Google+Search
" might manually link to "www.foobar.com/favicon.ico" in it's
<head> element - we simply don't know until the sight has loaded
once.
Therefore, until you do actually load the site, iconForPageURL("www.google.com/search?hl=en&q=some_query&btnG=Google+Search
") should return the default icon.
Here is the behavior that I want:
Load www.google.com, show the default icon until the google
favicon is loaded and dispatchDidReceiveIcon is called. Load www.google.com/search?hl=whatever
, show the google favicon unless dispatchDidReceiveIcon is called.
Load www.someothersite.com, show the default icon until
dispatchDidReceiveIcon is called. How can I accomplish this
behavior when the IconDatabase doesn't know about pageUrls-
>iconUrls until *after* the load has completed?
To accomplish this behavior you'll have to do a little work.
As I said above, it is impossible to know for sure which icon
belongs to a site until you've visited that site once. But I think
it's quite reasonable if an API client wants to make assumptions by
itself and ask for a different icon.
Maybe what you're going for here is to have your API client run
it's own logic that says "Okay, I don't know the icon for http://www.google.com/search?hl=en&q=some_query&btnG=Google+Search
, but I do know the icon for http://www.google.com/, so I'll show
that icon instead until I know the http://www.google.com/search?hl=en&q=some_query&btnG=Google+Search
icon for sure"
And the tools *are* in place to accomplish that now.
Hope this helps,
Brady
Safari/WebKit Engineer
Thanks,
Patrick
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