- From: Rik Cabanier <cabanier@gmail.com>
- Date: Mon, 1 Aug 2011 14:36:26 -0700
- To: Dean Jackson <dino@apple.com>
- Cc: Jonathan Snook <jonathan@snook.ca>, www-style@w3.org
- Message-ID: <CAGN7qDBsTKj=ZaMyWbWRsWT=+aaR+7qLb8G6=q5eQEcuVuc_Zg@mail.gmail.com>
Yes, you're absolutely right. I assumed that the default fill-mode was 'forwards'. Are you proposing that the following constructs become valid as well: @keyframes fade { 10% { display:block; opacity: 1; } 90% { display:none; opacity:0; } } and @keyframes fade { 10% { display:block; opacity: 1; } 30% { display:none; opacity:0; } 60% { display:block; opacity: 1; } 90% { display:none; opacity:0; } } This would be most helpful, but it seems odd that an element has a running animation and a style of 'display: none'. Rik Rik On Mon, Aug 1, 2011 at 2:20 PM, Dean Jackson <dino@apple.com> wrote: > > On 01/08/2011, at 2:16 PM, Rik Cabanier wrote: > > I think Jonathan was looking for a solution that removes the DIV from the > flow. Setting opacity to 0 will not remove the object so it will still take > up space and be part of the page's layout. > If you have a lot of animations, this causes significant slowdowns. > > > But he has display:none; on the div.hidden rule. > > So basically the animation should run with display:block through all > keyframes, then once it is done it reverts to the non-animated style where > display is none. > > This could lead to some weird behaviour, such as if the animation had a > delay. A lot depends on when exactly the animation starts. The spec is awful > in these areas :( > > Dean > > > Rik > > On Mon, Aug 1, 2011 at 1:46 PM, Dean Jackson <dino@apple.com> wrote: > >> >> On 28/07/2011, at 10:22 PM, Jonathan Snook wrote: >> >> > However, currently, non-transitionable properties are ignored. I'd like >> to suggest that this be changed and I'll give you a particular use case: >> > >> > div { >> > display:block; >> > } >> > >> > div.hidden { >> > display:none; >> > animation: slide-out 1s 1; >> > } >> > >> > In this example, the hidden class is applied to a DIV via JavaScript. >> The problem is that by setting display:none, neither animations nor >> transitions will work. I would propose that non-transitionable values be >> allowed. >> > >> > @keyframes slide-out { >> > 0% { display:block; opacity: 1; } >> > 100% { display:none; opacity:0; } >> > } >> >> I think if you set 100% { display: block; opacity: 0; } you'd get the >> effect you're looking for. >> >> The spec should say that non-animatable properties in a keyframe value >> rule are applied (we agreed for transitions that non-animatable properties >> do actually change over time, at the end of the duration). If that's not the >> case then I'll fix it. If WebKit doesn't implement this then it's a bug too. >> >> So basically, I think there is a workaround, but it might not be specified >> or implemented :) Hopefully others agree. >> >> Dean >> >> >> >> > >
Received on Monday, 1 August 2011 21:36:53 UTC