draggableUnzoomed behaviour

[atlasan]

This is not an issue, but maybe somebody likes it.

Probably just due to my necessity but..

I've added an option unzoomedFactor: 0.01

I've modified isCloseTo function like this:

isCloseTo = function isCloseTo(value, expected, factor) {
factor = (factor!==undefined) ? factor : 0.01;
return value > expected - factor && value < expected + factor;
};

Than modified its calls like this isCloseTo(this.zoomFactor, 1, this.options.unzoomedFactor)

And added a line in handleZoomEnd

if (!this.options.draggableUnzoomed && isCloseTo(this.zoomFactor, 1, this.options.unzoomedFactor)) this.resetOffset();

And in handleZoom I added the condition if (this.canDrag()) before the this.drag like this
if (this.canDrag()) this.drag(touchCenter, this.lastZoomCenter);

All together makes ::

• when zooming out ends the image replace itself in it's original position
• when zooming close to scale 1 factor and dont whant to drag, it doesn't
• factor is an option so makes more control over it