[Webkit-unassigned] [Bug 90158] -webkit-user-select: none causes performance issue on large pages

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=90158





--- Comment #1 from Giacomino Veltri <gveltri at gmail.com>  2013-02-01 20:54:48 PST ---
Created an attachment (id=186211)
 --> (https://bugs.webkit.org/attachment.cgi?id=186211&action=review)
Another web page test case

This test case tests dragging large numbers of objects around on screen*.  To start, simply click the text/grey area and drag.  If you hold CTRL when clicking on the text/grey area, webkitUserSelect will be set to 'none', otherwise it will be set to 'auto'.

Note that I am currently running in Chrome, and that the result I'm seeing is that the performance while dragging is significantly reduced when webkitUserSelect is set to 'none'.

* The particular project I am working on currently requires large numbers of DOM elements (and I'd like to have the text not get selected :) ).

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