RESOLVED CONFIGURATION CHANGED 94905
ShadowHost should be reattached during recalcStyle. 
https://bugs.webkit.org/show_bug.cgi?id=94905
Summary ShadowHost should be reattached during recalcStyle.
Takashi Sakamoto
Reported 2012-08-23 23:19:14 PDT
Created attachment 160338 [details] repro When new shadow roots are added to the shadow host or content distribution is changed, the shadow host is reattached (detached and lazyAttached). However, the detach clear the shadow host's style (the style is set to be null). The detach is invoked not during recalcStyle. So suppose that adding a shadow root and applying css transition to the shadow host in the same time. Since the shadow host's style is reset, no css transition can be started. This looks not good. So it might be better to set some flag here and to recreate a renderer during in Element::recalcStyle (i.e. during recalcStyle).
Attachments
repro (466 bytes, text/html)
2012-08-23 23:19 PDT, Takashi Sakamoto 		no flags
Details
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Dominic Cooney
Comment 1 2012-12-10 21:39:53 PST
The spec is not clear whether CSS transitions should be applied in this case.
Ryosuke Niwa
Comment 2 2019-10-04 22:11:35 PDT
We don't do this anymore.
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