[Webkit-unassigned] [Bug 213966] New: ios safari doesn't call deviceorientation event

Sat Jul 4 16:39:51 PDT 2020

https://bugs.webkit.org/show_bug.cgi?id=213966

            Bug ID: 213966
           Summary: ios safari doesn't call deviceorientation event
           Product: WebKit
           Version: Safari 13
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Website
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: giorgi.lagidze at toptal.com
                CC: jond at apple.com

Hi Safari Team...

I am trying to use `deviceorientation` event to be called. The problem is it doesn't get called.

I know that I should request permission to be able to listen to that event.

Here is the code I am using ..

<html>

<button onclick="test()">click here</button>

<script>
    function test(){
        DeviceOrientationEvent.requestPermission()
                .then(response => {
                    if (response == 'granted') {
                        console.log("granted good");
                        window.addEventListener('deviceorientation', (e) => {
                            // do something with e
                            console.log("device orientation changed ", e);
                        })
                    }
                }).catch(err => {
                    console.log("Err ", err);
                })

    }
</script>
</html>

It logs `granted good` , but when I change orientation, it never logs the below log nor the error.

To reproduce the above thing, go to https://glagidze.com/index1.html
Questions:

1) Why doesn't it log when orientation changes ? 
2) Will this work for below IOS versions (even after requesting permission ? )
3) What other solutions (if this doesn't work) should I provide ? (window.orientation looks like it's working, but it's deprecated).

Thanks in advance..

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