Bug 101316

Summary: ShadowRoot::insertedInto is called many times without calling removedFrom when parsing <video controls>
Product: WebKit Reporter: Shinya Kawanaka <shinyak>
Component: DOMAssignee: Web Components Team <webcomponents-bugzilla>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: dglazkov, dominicc, eric.carlson, morrita, rniwa, webcomponents-bugzilla
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 72352    

Shinya Kawanaka
Reported 2012-11-06 00:28:15 PST
I noticed this when I was working for Bug 100922. This might cause mysterious errors in future.
Attachments
Shinya Kawanaka
Comment 1 2012-11-06 20:26:44 PST
The root cause seems HTMLMediaElement creates Shadow subtree in insertedInto(). This seems a bad signal...
Hajime Morrita
Comment 2 2012-11-08 22:31:55 PST
(In reply to comment #1) > The root cause seems HTMLMediaElement creates Shadow subtree in insertedInto(). > This seems a bad signal... It sounds reasonable to get rid of the shadow construction from insertedInto(). I'm not sure where is the best place though. It needs further investigation.
Dimitri Glazkov (Google)
Comment 3 2012-11-09 09:18:23 PST
Yeah, this is crufty. insertedInto is a really low-level hook, and it's tempting to use it various convenient purposes. However, being a low-level hook, it's also a minefield in situations like this.
Ryosuke Niwa
Comment 4 2019-10-04 22:48:34 PDT
configureMediaControls() is now called in HTMLMediaElement::didFinishInsertingNode() so this is no longer happening.
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