When ratio is set, direction should be updated

[RaananW]

if dragging in one direction but asking to preserve ratio the direction should actually be one of the corners

[xieziyu]

@RaananW
This PR will make n and s handles stop to work if rzAspectRatio is set

[RaananW]

Hey,

I checked it locally and it worked, but I might have missed something (it didn't push it?) . I'll check and let you know

[RaananW]

I didn't commit a small change to resizeTo, which makes it work:

    let tmpX = Math.round(p.x / this._gridSize.x) * this._gridSize.x;
    let tmpY = Math.round(p.y / this._gridSize.y) * this._gridSize.y;

    // if aspectRatio is set, change should be max on both
    if (this._aspectRatio) {
      tmpX = tmpY = (Math.abs(tmpX) >= Math.abs(tmpY)) ? tmpX : tmpY;
    }

I have noticed, however, that it is eventually better to keep the single-direction approach, because this implementation will not work if dragging south, but making a big move on e or w.

I still believe that the direction SHOULD be updated, but direction should also have "original handler", to know which one was triggered. So, if I am using "s", originalHandler would be "s" (or s: true), but direction would be s: true, e: true , because the box is going to change in both directions.

[xieziyu]

Yes, I agree. The original _direction was designed to mean "dragging a handler in this direction" which is different from "the box is changing in these directions". So it's better to introduce another variable for this purpose.