Dragging drawings across the date line does not move them to the target "world"

• Leaflet version I’m using: 0.7.2
• Leaflet Draw version I’m using: 0.4.9
• Browser (with version) I’m using: Chrome 60
• OS/Platform (with version) I’m using: Ubuntu 14.04

A user makes a drawing (for example, a polygon) and drags it across the date line in the Pacific:

As soon as they release the mouse, the drawing seems to vanish off the map. In fact it simply stays in the Leaflet “world” it came from, instead of moving to the new one that the user dragged it to. It remains in the right location, but in the wrong copy of the world and probably way outside the viewing area.

I tried worldCopyJump and other possible solutions from here: https://github.com/Leaflet/Leaflet/issues/2333

Unfortunately, nothing helps.

[germanjoey]

@Techn1x oh man, I totally forgot to follow up on this. I bundled my code as a plugin here:

https://github.com/germanjoey/Leaflet.ShadowWrap

I meant to announce it here because I had remembered that there was a lot of requests for this feature for Leaflet.Draw (and in general, for Leaflet to correctly handle shapes spanning the IDL), but then my IRL got very insane the last few months and I totally forgot about this.

Anyways, the demo uses Leaflet v1.2 and is untested with the recent round of Leaflet.Draw PRs included by @ddproxy, but it does include the by-now-forgotten undo/redo PR that I submitted like 14 months ago, lol.

Give it a whirl, lemme know how it goes.

[germanjoey]

This plugin should be compatible with most Leaflet plugins btw, but I had to add a bunch of special-casing for Leaflet.Draw to make it work outta the box. Lots of special/edge cases, kinda drove me nuts. BUT - it should work with Leaflet.Draw just by including the plugin and hooking in your add-shape callback - see demo2.html.

At any rate, if you find a bug please let me know about it (and exactly how I can reproduce it).