Bug 107291 – Web Inspector: data grid resize is slow

• Component: Web Inspector (Deprecated)
• Status: RESOLVED FIXED

[Andrey Kosyakov]

0. Open inspector
1. Switch to network panel (or Resources -> Cookies)
2. Quickly drag a resizer in the table
3. Observe update lags considerably

[Andrey Kosyakov]

Created attachment 183475 [details]
Patch

[Pavel Feldman]

Comment on attachment 183475 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=183475&action=review

> Source/WebCore/inspector/front-end/DataGrid.js:688
> +                    resizer._position = left;

Resizers are cached and I don't see where this property is reset. Do you want to split this loop into two loops? First would measure, second would apply.

[Andrey Kosyakov]

Comment on attachment 183475 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=183475&action=review

>> Source/WebCore/inspector/front-end/DataGrid.js:688
>> +                    resizer._position = left;
> 
> Resizers are cached and I don't see where this property is reset. Do you want to split this loop into two loops? First would measure, second would apply.

Why would we have to reset this property? It just mirrors resize.style.left, so its life time is meant to match the life time of resizer.

[Andrey Kosyakov]

Committed r140335: <http://trac.webkit.org/changeset/140335>