Hide the window shadow while dragging on Mac

[jaredhirsch]

On MacOS, there's a box shadow chasing the player as it's dragged around.

The fix is to set -moz-window-shadow: none on the panel while dragging.

I wasn't able to test this in the debugger, some debugger bug, I think. But it should work, it's used a lot in dxr.

[meandavejustice]

How do you set css props on the actual panel? Do you have an example you can link to?

[jaredhirsch]

@meandavejustice You can get the panel like this: let el = getActiveView(panel). getActiveView comes from view/core.

To style it, you can just setAttribute('style', inlineStyles) to set inlineStyles. This is done in a couple places in dxr: https://dxr.mozilla.org/mozilla-central/search?q=panel.setAttribute+style&redirect=false

[jaredhirsch]

Hmm, I think you might have to set the styles in the older style: panelElement.style.property = value. I can take this bug.

[jaredhirsch]

This was fixed by #179. Closing 🎉