[Webkit-unassigned] [Bug 64143] Page-Up or Page-Down inside textarea scrolls not just its content but the page

Tue Jul 12 02:24:55 PDT 2011

https://bugs.webkit.org/show_bug.cgi?id=64143

--- Comment #11 from Kentaro Hara <haraken at google.com>  2011-07-12 02:24:55 PST ---
Thank you very much for the review.

> This seems to only affect Chrome, so fixing the problem by modifying cross platform code needs a very good explanation.

Yes, this seems to affect only Chrome. This problem does not happen on Mac Safari since it uses its own rendering code for scroll operations (Source/WebKit/mac/WebCoreSupport/WebEditorClient.mm etc...).

> Is this a regression? Can you find out when it started?

Regression. I found that the problem starts from r60268 (http://trac.webkit.org/changeset/60268/), which changed WebCore codes. The attached test (pageup-and-pagedown-in-textarea.html) passes r60267, but does not pass r60268.

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