[webkit-dev] shiftLeft property compatibility

[David Ford]

We at CNS Vital Signs would like to request that the shiftLeft property 
for the keydown and keyup events be implemented in the Safari web browser.

CNS Vital Signs has developed software that presents a series of 
computerized neurocognitive tests that are designed to be used as a 
routine part of a clinical practice, as a research instrument, and in 
schools or workplaces where health and safety are an issue.  The CNS 
Vital Signs test battery offers 54 languages and has been utilized as a 
research tool in over 35 countries world wide.  The tests run on a PC 
and are designed to collect responses from patients and calculate 
performance scores based on the accuracy and timing of the response.  
The original program was a stand-alone application that is downloaded 
and installed on the PC. We have recently released a web version of the 
same program.

One of the tests originally written makes use of the right and left 
shift keys.  Patients are asked to press the left shift key or the right 
shift key to respond to a presented rule.  Currently, only Internet 
Explorer has implemented the shiftLeft property for the keydown and 
keyup events.  Our pharmacutical customers require the web version of 
our test be identical in nature to the local version, so we have had to 
restrict all web deployments to support Internet Explorer only.

We have programmed the web application to use the right and left arrow 
keys for other browsers but we have had to restrict it's use to clinical 
practice use.

Thanks for considering our request.
David J. Ford
VP Quality Assurance
CNS Vital Signs, LLC
https://www.cnsvs.com