[Webkit-unassigned] [Bug 12753] New: Incorrect value for javascript window.screenX and window.screenY values.

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=12753

           Summary: Incorrect value for javascript window.screenX and
                    window.screenY values.
           Product: WebKit
           Version: 420+ (nightly)
          Platform: All
        OS/Version: Mac OS X 10.4
            Status: UNCONFIRMED
          Severity: Major
          Priority: P2
         Component: WebCore JavaScript
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tom at bungeelabs.com


In javascript, the screenX and screenY members of the window object give the
screen coordinates of the top-left coordinates of the chrome window. This is
incorrect. The values returned should point to the first pixel in the content
window.

Firefox returns the first pixel of the content window as (window.screenX,
window.screenY). IE returns the first pixel of the content window as
(window.screenTop,window.screenLeft).

This is happening because the outer window rectangle is used as the return
value for these properties: kjs_window.cpp:

case ScreenTop:
case ScreenY:
  return jsNumber(m_frame->page()->chrome()->windowRect().y());


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