[Webkit-unassigned] [Bug 83276] New: WebKit2 crashes when calling event.dataTransfer.setDragImage with an HTML element
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Apr 5 07:15:28 PDT 2012
https://bugs.webkit.org/show_bug.cgi?id=83276
Summary: WebKit2 crashes when calling
event.dataTransfer.setDragImage with an HTML element
Product: WebKit
Version: 528+ (Nightly build)
Platform: Macintosh Intel
OS/Version: Mac OS X 10.6
Status: UNCONFIRMED
Severity: Normal
Priority: P2
Component: WebKit2
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: matt.cg at ft.com
Created an attachment (id=135818)
--> (https://bugs.webkit.org/attachment.cgi?id=135818&action=review)
Crash log
Steps to reproduce:
1) In the dragstart callback for a draggable element, call event.dataTransfer.setDragImage(document.createElement('div'), 0, 0).
What should happen:
In browsers that support passing an HTML element to setDragImage, the element should be painted below the cursor while dragging. WebKit does not seem to support this behaviour, so I would expect the default drag image to be used instead.
What happens instead:
The page reloads immediately and a crash log is saved to ~/Library/Logs/DiagnosticReports on Mac OS.
The Drag and Drop section of the HTML5 spec says[1]:
If the element argument is an img element, then set the drag
data store bitmap to the element's image (at its intrinsic size);
otherwise, set the drag data store bitmap to an image generated
from the given element (the exact mechanism for doing so is
not currently specified).
[1] http://www.w3.org/TR/2011/WD-html5-20110405/dnd.html#dom-datatransfer-setdragimage
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