On 21 Jan 2007, at 19:16, David Bovill wrote:
I have not used "load" much... just starting some experiments. Am I
right
that you can "load" stacks and then go to the url and it will fetch
the
stack from the cache?
That's right. But don't be misled by thinking this is a special
feature of stacks that are downloaded by "load url". You can "go" to
any stack whose file data is held in any kind of "data container"
such as a variable, custom property or url. The following will work too:
on mouseUp
answer file ""
if it is not empty then
put url ("binfile:" & it) into tStackData
go tStackData
end if
end mouseUp
As any data retrieved by "load url" is held in a cache, and as
subsequent calls using "get url" will retrieve the data from the
cache, using "go url "http://whatever/whatever.rev"; is just taking
advantage of the above feature. (What I'm trying to say is that "load/
get url" wasn't designed with the idea of opening stacks in mind. The
ability to do that is just a consequence of an already existing
feature.)
The other thing I cannot figure out is how to find out the name of
the file
in the cache
Do you mean the name of the file, or the name of the stack? The
cachedUrls() function will return of the currently cached URLs. I
don't know of a straightforward way to get the name of a stack in the
url cache. Possible ways are to "toplevel" the url and then
immediately get the name of the topStack, or write the url to a local
file and get the stack name from the file.
(and where the cache is).
It's just a local script variable in the libUrl script.
It would be
nice to store the cache somewhere permanent and take advantage of
the asynch
load.
You could use libUrlDownloadToFile to do an asynchronous load
directly to a file instead of the cache. Or in the callback message
for load, save the url to a local file. For example:
load url myUrl with message "loaded"
on loaded pUrl, pStatus
if pStatus = "cached" then
put url pUrl into url ("binfile:" & pathToLocalFile)
end if
unload url pUrl
end loaded
Cheers
Dave
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