[Webkit-unassigned] [Bug 137269] New: weird input[type=number] incr/decrement button behavior at odd-numbered font sizes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=137269

           Summary: weird input[type=number] incr/decrement button
                    behavior at odd-numbered font sizes
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://jsfiddle.net/FFXEc/
        OS/Version: Mac OS X 10.9
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Forms
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: webkit at rebertia.com


OS Version: OS X 10.9.5
Safari Version: 7.1 (9537.85.10.17.1)

Steps to reproduce the problem:
1. Open the demo JS Fiddle ( http://jsfiddle.net/FFXEc/ ) in Safari.
2. (All further instructions are regarding the second/middle input[type=number] field on the demo.)
[Bug A]:
3. Hover the cursor up and down along the inner right edge of the field, in horizontal alignment with the increment and decrement buttons.
[Bug B/C]:
4. Click on the top part of the decrement button, such that you observe normal behavior.
5. Continue clicking repeatedly while moving your cursor downward, beyond the decrement button but still within the bounds of the input field.

What is the expected behavior?
A: The cursor ought to always remain a pointer while it's within the bounds of the decrement button.
B: Clicking outside the bounds of the increment/decrement buttons should not cause the input field's value to change.
C: Invoking the decrement button should always cause it to flash blue to indicate that it was clicked.

What went wrong?
A: The cursor changes from a pointer to an "I"-bar (for text entry/selection) before you have gone outside the bounds of the decrement button.
B: The field's number value continues to decrement.
C: The decrement button did not flash blue to indicate that it was somehow clicked.

Original Bootstrap bug report: https://github.com/twbs/bootstrap/issues/8350
Related Chromium bug: https://code.google.com/p/chromium/issues/detail?id=337668

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