4 Aug
2015
4 Aug
'15
12:18 a.m.
On Mon, Aug 3, 2015 at 11:36 PM, Offray Vladimir Luna Cárdenas <
offray(a)riseup.net> wrote:
Peter, I like your proposed syntax. Seems more
understandable (but I don't
know nothing about announcements).
Announcements are Pharo's event system.... and I am kind of surprised that
there is no chapter about it in neither Pharo books. Because it definitely
should be there.
Unfortunately I have no idea where I learned announcements (quite possibly
from exploring code), maybe this could help
http://pharo.gemtalksystems.com/book/LanguageAndLibraries/announcements/ or
google, sorry. :(
Cheers,
Offray
On 27/07/15 16:51, Peter Uhnák wrote:
Instead of (or alongside) a callback
anElement addCallback: (TRExtentCallback block: [ :event | "do something"
])
have an event
anElement when: TRExtentChanged do: [ :event | "do something" ]
While it looks like a subtle difference it's more versatile and doesn't
introduce a different way to do things, when we already perfectly feasible
way in pharo - Announcements.
And I am asking what do you think about such proposition.
Cheers,
Peter
On Mon, Jul 27, 2015 at 10:03 PM, Alexandre Bergel <
<alexandre.bergel@me.com>alexandre.bergel@me.com> wrote:
Hi Peter,
I do not know whether this is the jetlag effect or not, but I do not
understand your email.
What do you mean that a callback be attached just like regular event?
Cheers,
Alexandre
--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
On Jul 27, 2015, at 6:55 AM, Peter Uhnák <i.uhnak(a)gmail.com> wrote:
Hi,
this is just an idea that's been bugging me for some time...
what if callbacks could be attached just like regular events?
e.g.
aBox when: TRExtentChanged do: [ :event | (self parentFor: aBox) rebuild ]
Is there benefit in having some events as events and some as callbacks?
Isn't event more versatile?
What do you think?
I should probably check how this is done in Bloc...
Peter
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