This is some working code that makes a Draggable:
this.draggable = new Draggable(ts.up("div.rsrcRow"), {
revert: true,
ghosting: true,
onStart: function(draggable, event) {
var G = window.grid;
var dzs = G.gridElt.select("div.rsrcRow");
G.dropZoneElts = dzs;
// But why doesn't this store window.grid ?
G.shouldBeGridObj = this; // ? But IS draggable.options.
}.bind(window.grid),
...
});
I would think the value of 'onStart' here would be the
wrapper that bind puts around the function object, but
it clearly is not.
window.grid is a prototypejs-style object, and when
onStart is called, 'this' is bound not to that object,
but to draggable.options. And looking at it after
the drag+drop (as window.grid.shouldBeGridObj) I can
see that the 'onStart' member is the original function body
with no indication of a bind-wrapper.
What am I missing here?
TIA,
Mike
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