RESOLVED FIXED 29219
Document.elementFromPoint() should take page scroll into consideration 
https://bugs.webkit.org/show_bug.cgi?id=29219
Summary Document.elementFromPoint() should take page scroll into consideration
Xiaomei Ji
Reported 2009-09-11 18:30:37 PDT
I am not sure whether this is a bug or not. document.elementFromPoint() currently does not take page scroll into consideration. If the input parameter (x, y) is the point in viewport, it should be increased by (document.body.scrollLeft, document.body.scrollTop), then apply zoomFactor, in order to get the correct point in the document. Or it is expected user to pass in (x, y) with scoll offset, such as (event.clientX + document.body.scrollLeft, event.clientY + document.body.scrollTop)?
Attachments
patch (8.35 KB, patch)
2009-09-12 01:59 PDT, Sam Weinig 		andersca: review+
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Sam Weinig
Comment 1 2009-09-11 19:00:12 PDT
Can you gather stats on what the other browsers do?
Sam Weinig
Comment 2 2009-09-12 01:16:00 PDT
My experiments show that Firefox behaves as the spec describes, and I don't believe IE implements this API. We should probably change.
Sam Weinig
Comment 3 2009-09-12 01:24:50 PDT
I take it back, IE implements it, but I don't have a windows machine to test on at the moment.
Sam Weinig
Comment 4 2009-09-12 01:59:28 PDT
Created attachment 39511 [details] patch
Anders Carlsson
Comment 5 2009-09-12 10:33:41 PDT
Comment on attachment 39511 [details] patch r=me
Sam Weinig
Comment 6 2009-09-12 12:12:38 PDT
Fixed in r48334.
Mark Rowe (bdash)
Comment 7 2009-09-15 21:49:48 PDT
This broke dragging files on to file inputs: bug 29276.
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