3.0.0 HTML5 drag'n'drop initial GridStack.enable() Error

[infime]

Subject of the issue

Calling enable() with the new native drag'n'drop throws an Error.

Your environment

• v3.0.0 HTML5
• Chrome 86.0.4240.111

Steps to reproduce

Will follow up with a reproduction

Expected behavior

Calling enable should not throw an error

Actual behavior

Stack trace

gridstack-dd-native.js?9be6:33 Uncaught (in promise) TypeError: Cannot read property 'enable' of undefined
    at eval (gridstack-dd-native.js?9be6:33)
    at Array.forEach (<anonymous>)
    at GridStackDDNative.resizable (gridstack-dd-native.js?9be6:31)
    at eval (gridstack-dd.js?a66a:484)
    at Array.forEach (<anonymous>)
    at GridStack.gridstack_1.GridStack.resizable (gridstack-dd.js?a66a:473)
    at eval (gridstack.js?7e36:558)
    at Array.forEach (<anonymous>)
    at GridStack.enableResize (gridstack.js?7e36:558)
    at GridStack.enable (gridstack.js?7e36:527)

[adumesny]

thanks for the effort! let find a reproduceable case and I will fix it!

looks like you are calling enable on a static grid maybe ??? (no DD created and jumping to enabling on null DD)

  public enableResize(doEnable: boolean, includeNewWidgets = true): GridStack {
    if (doEnable && this.opts.staticGrid) { return this; } // can't size a static grid!

should prevent resize() from being called on static grid, yet if not static it should NOT be null. So curious how you got there ?
did you mod the grid .staticGrid option directly ? big no no :)
because calling setStatic(false) would create DD as tested...

https://gridstackjs.com/demo/static.html is exactly to test this BUT it uses setStatic(true/false) which is more permanent version of enable()/disable(). I need to refresh my memory why we have both method
Update: added more doc why we have both - subtle difference.

[infime]

Nope no static grid involved, I think it's potentially related to using load(). I'll get a reproduction going.

[infime]

https://jsfiddle.net/anzojxum/19/ reproduces the issue. It's being triggered when calling enableResize when at least one of the widgets is locked

[adumesny]

ha, that makes sense... taking a look.