contextmenu: Menu button trigger not just on root

[Herst]

See also https://developer.mozilla.org/en-US/docs/Web/Events/contextmenu.

On a side note, can the root element always be assumed to be html?

[jsf-clabot]

All committers have signed the CLA.

[AurelioDeRosa]

Thank you for contributing. In an HTML document, the root will always be the html element.

[mgol]

@AurelioDeRosa The PR's intention wasn't to specify if the html element is equivalent to the root element but to specify the keyboard-activated context menu fires the contextmenu event at the currently focused element. I'll reopen it then.

@Herst Have you verified that this behavior is true? I don't have a Windows laptop to check that and Macs don't have the context menu key.

[AurelioDeRosa]

@mgol I know the PR wasn't about that, I replied to the question asked in this very PR.

On a side note, can the root element always be assumed to be html?

Also, I'm a Windows user and I did verify that this is true. That's why I merged the PR.

[mgol]

Sorry, my bad. Somehow I thought you rejected it, not landed. Closing again then!

[Herst]

@mgol Yes, I have confirmed the behavior and not just on Windows BTW.

Cocerning the root document question I asked because when reading the documentation here I remembered that are reset stylesheets which for some reason use :root instead of the html selector in some places.

Again on a side note, I am using the contextmenu event to reliably prevent long-press touches from causing the context menu to pop up on certain interactive elements. Sadly there seems to be no way to prevent specifically prevent the event calls which where the result of a long-tap action as opposed to a right-click, see: https://stackoverflow.com/q/47202631/2261442 I would be glad if someone here knows the right committees or such where such feature requests could be brought up.