On Wed, Dec 1, 2010 at 11:43 AM, Chris Marrin <cmarrin@apple.com> wrote: > On Nov 30, 2010, at 3:25 PM, Simon Fraser wrote: >> On Nov 30, 2010, at 2:49 PM, Tab Atkins Jr. wrote: >> >>> Right now, the Transitions spec still says that only certain types of >>> values can be transitioned. Other types of values are ignored (merely >>> kept in the transition-property list to maintain relative list >>> positions). >>> >>> I thought we'd agreed to let any property without specified transition >>> rules transition, with the rule that it's equal to the start value at >>> t=0 and the end value at t>0 (or the opposite, whatever)? Part of the >>> reason we introduced the step timing-function was specifically to help >>> control this case, if I recall correctly. >>> >>> I assume this is just a temporary omission, and the necessary edits >>> will be made in time? >> >> David Baron suggested that transition-delay should apply to all properties. >> I said that I supported that in principle, but was worried about implementation >> performance implications, given that the default for transition-property is "all". > > Maybe we've discussed this in the misty past, but why is the default 'all'? Wouldn't 'none' avoid expensive (in terms of processing) mistakes? This is noted in the current spec - using transition-duration:0 and transition-property:all by default is apparently somewhat aesthetically prettier than transition-duration:250ms (or some reasonable default) and transition-property:none. There's no technical reason for it, though. ~TJReceived on Wednesday, 1 December 2010 21:46:32 UTC
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