Of course. But when the status quo has been robustly defended, it seems reasonable to lobby for change as a start.
________________________________________ From: [email protected] [[email protected]] On Behalf Of Stéphane Ducasse [[email protected]] Sent: Tuesday, January 18, 2011 2:22 PM To: [email protected] Subject: Re: [Pharo-project] Unsubscribing for Announcements Yes but having good weakstructure will not arrive by accident. On Jan 17, 2011, at 4:34 PM, Schwab,Wilhelm K wrote: > Two comments: > > (1) there needs to be a way to unregister interest; > (2) the registrations need to be weak so that (1) is largely optional. > > If Dolphin has a weakness, it is that failure of an MVP triad to open can > leave the system in a confused state. Morphic appears to be a little more > robust about that, though in fairness, I do not push Pharo's GUI nearly as > hard as I have Dolphin's. If in doubt, some type of #ifCurtailed: or similar > protection around the assembly of a complex morph might be a good idea. > > > ________________________________________ > From: [email protected] > [[email protected]] On Behalf Of Sean P. DeNigris > [[email protected]] > Sent: Monday, January 17, 2011 1:18 AM > To: [email protected] > Subject: [Pharo-project] Unsubscribing for Announcements > > I really like Announcements! It's so much easier to update complex GUIs when > you can pass state :) > > I hit one glitch when unsubscribing... The CollaborActive book suggests > unsubscribing in #delete. For complex UIs, this doesn't seem to work > because #delete is only called for the one morph that was deleted, not for > its submorphs (which may need to unsubscribe). > > I tried this: > MyMorph>>delete > super delete. "Must come first. Deleting a submorph before self = > emergency evaluator" > aSubmorphThatNeedsToUnsubscribe delete. > > SubmorphMentionedAbove>>delete > self inventory announcer unsubscribe: self. > super delete. > > > But it seems like a lot of work and coupling. Is there no hook that is > guaranteed to be called when a morph is going away - i.e. it or a morph in > the owner chain is being deleted? > > Thanks. > Sean > -- > View this message in context: > http://forum.world.st/Unsubscribing-for-Announcements-tp3220751p3220751.html > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. > >
