1340177 - Custom cursor offsets mouse location reported by mouse event on high resolution screen with text zoom enabled on windows

Status: UNCONFIRMED

(Core :: Widget: Win32, defect, P3)

Description

[brendan.c.stevenson]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Steps to reproduce:

Implement a custom cursor through CSS.  Here is an example: http://jsfiddle.net/TmsrP/898/

In windows display settings, set the text zoom higher than 100%.  (http://www.windowscentral.com/how-make-text-apps-bigger-windows-10 for windows 10, similar instructions for windows 8 can be found online, i can repro in both)

Click with that custom cursor on an element where you can be sure you can reproduce the click-location.  Note the x & y values reported.  (the jsfiddle above writes those values to console.log)

Set the windows text zoom display setting to 100%.  

Repeat the click with the custom cursor.  Note the x & y values reported.


Actual results:

The x & y values should be the same for both zoom settings (chrome, IE both show this behavior).


Expected results:

The x & y values are different (there is a consistent offset) when the windows display settings are set to zoom text.

Comment 1

[brendan.c.stevenson]

Slight update to JSFiddle to provide a non-svg example as well: http://jsfiddle.net/TmsrP/899/