Bug 159731 – REGRESSION (r191907): Maxthon Browser -After exit full screen video playback the browser window is blank with audio running

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Jer Noble]

REGRESSION (r191907): Maxthon Browser -After exit full screen video playback the browser window is blank with audio running

[Jer Noble]

<rdar://problem/26674003>

[Jer Noble]

Created attachment 283555 [details]
Patch

[Tim Horton]

Comment on attachment 283555 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=283555&action=review

> Source/WebKit2/UIProcess/mac/WKFullScreenWindowController.mm:68
> +@interface NSView (WebNSViewDetails)
> +- (NSArray *)_referencingConstraints;
> +@end

This should be in an SPI header. Actually... do you ever use it?

> Source/WebKit2/UIProcess/mac/WKFullScreenWindowController.mm:254
> +    self.savedConstraints = _webView.superview.constraints;

Did you mean to use _referencingConstraints here? I'm not sure that saving all constraints on a view we don't own is right.

> Source/WebKit2/UIProcess/mac/WKFullScreenWindowController.mm:317
> +        [NSLayoutConstraint activateConstraints:self.savedConstraints];

Should we be more careful if this throws?

[Jer Noble]

Created attachment 283556 [details]
Patch

[Jer Noble]

Comment on attachment 283555 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=283555&action=review

>> Source/WebKit2/UIProcess/mac/WKFullScreenWindowController.mm:254
>> +    self.savedConstraints = _webView.superview.constraints;
> 
> Did you mean to use _referencingConstraints here? I'm not sure that saving all constraints on a view we don't own is right.

Nope. I removed the SPI header in the most recent patch.

>> Source/WebKit2/UIProcess/mac/WKFullScreenWindowController.mm:317
>> +        [NSLayoutConstraint activateConstraints:self.savedConstraints];
> 
> Should we be more careful if this throws?

Will this throw? that seems.... Weird.

[Jer Noble]

Created attachment 283567 [details]
Patch

[Tim Horton]

Comment on attachment 283567 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=283567&action=review

> Source/WebKit2/UIProcess/mac/WKFullScreenWindowController.mm:313
> +        @try {

I mean, if you're going to do it, do it to both :) And one would expect some {BEGIN,END}_BLOCK_OBJC_EXCEPTIONS, not this.

[Sam Weinig]

How are going to test this so it doesn't regress again?

[Jeremy Jones]

Created attachment 283823 [details]
Patch for landing.

[Jeremy Jones]

Created attachment 283831 [details]
Patch for landing.

[Jeremy Jones]

(In reply to comment #8)
> How are going to test this so it doesn't regress again?

I'm working on an API test for this.

[WebKit Commit Bot]

Comment on attachment 283831 [details]
Patch for landing.

Clearing flags on attachment: 283831

Committed r203335: <http://trac.webkit.org/changeset/203335>