Dave wrote:
This is a Mac only question!
Is it possible to register a URL Hander for an Application built using
RunRev?
Please see:
http://www.cocoadev.com/index.pl?HowToRegisterURLHandler
Which describes (sort of) how to do it for a regular Cocoa Application.
Some specific questions are:
Will this work in the IDE?
On a Standalone, how would I get the URL string in order to find out
what to do?
I'm not sure if I've understood you correctly (or how this relates to your
polling issue) but FWIW: I do have an app which is set up to handle a custom
protocol URL.
The app related to an extranet; by setting it up to handle a custom protocol,
we were able to add links in the standard HTML pages which (if the user was
appropriately set up) launched the app and made it do various things as
appropriate.
Note that these weren't "real" URLs: the custom protocal at the front of the
URL was sufficient to make the browser hand the whole URL off to our app, and
the app then parsed the string to figure what it was supposed to do.
Anyway, if that is what you're after, the code looks like this (our custom
protocol was "cdz", ie URLs were things like "cdz://resetresource/AIC01"):
on appleEvent c, i, s
if (i = "odoc") or (i = "codo") then -- note catch for intel Macs
request appleEvent data
handleAppleEvent c, i, s, it
else if (c = "GURL") and (i = "GURL") then
request appleEvent data
handleAppleEvent c, i, s, it
else if (c = "core") and (i = "save") then
-- simple handling for now
...
else
pass appleEvent
end if
end appleEvent
on handleAppleEvent tClass, tID, tSender, tData
switch tClass && tID
case "aevt odoc"
case "tvea codo" -- intel Macs
... do stuff to open a file: tData is path to file
break
case "GURL GURL"
case "LRUG LRUG" -- intel Macs
-- do stuff to handle the request, tData is the URL, including protocol
if char 1 to 4 of tData = "cdz:" then
processCDZgurl char 6 to -1 of tData -- strip leading "cdz://"
else
dbgReport ("Unknown protocol in GURL event:" && tData)
end if
break
end switch
end handleAppleEvent
(NB checking for reversed four character codes was necessary when the first
intel Macs came in, and I was still building PPC apps which ran under Rosetta;
I've never bothered to find out whether this was an Apple or Rev issue, and
whether it's fixed with current versions. So it might be redundant now.)
This does work in the IDE, so long as the "on appleEvent" handler is in the
message path when the call arrives (eg your stack is top-level, or you've put
it in the backscripts). However, you'll have to set Revolution to be the
protocol handler when you're working in the IDE, and then set it back to your
app when you want the standalone to work - obviously, the operating system has
just one view at any time as to what app should handle a particular protocol,
it doesn't broadcast the request to all possible apps.
(I use a third party control panel "More Internet" to control this mapping;
there are many others eg TinkerTool - for some reason Apple no longer include
a GUI for modifying this directly. Evidently not something users are supposed
to worry their pretty little heads about...)
HTH,
- Ben
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