Replaced initMouseEvent with MouseEvent constructor and added composed: true

[Taal91]

Description

The deprecated method initMouseEvent has been replaced by the MouseEvent constructor. Additionally, compose: true has been added to allow gridstack.js to be used inside of a web component with touch events.

Checklist

• Created tests which fail without the change (if possible)
• All tests passing (yarn test)
• Extended the README / documentation, if necessary

[adumesny]

thanks for making this change

[h4de5]

it seems this was not part of the latest release 11.3.
any chance you can estimate when this will be published?

[adumesny]

It should be there. I merged it. Will have to check when I'm back on computer...

[h4de5]

it seems files on npmjs.com differ from the one in the github release.

https://www.npmjs.com/package/gridstack?activeTab=code

[adumesny]

I found the issue. there were 2 initMouseEvent() but only 1 was changed
https://github.com/gridstack/gridstack.js/blob/master/src/dd-touch.ts#L86
I thought my local git repo didn't have the changes....

[h4de5]

hm. yes this is true.
But I mean in the version on npmjs.com none have been replaced. both places in dd-touch still use the .createEvent method.