zoom(activeDocument.selection[0]);

function zoom(object) {
    var doc = app.activeDocument;
    if (doc !== undefined) {
        var view = doc.views[0];
        var viewBounds = view.bounds;
        var viewDimentions = dimentions(viewBounds);

        var objectBounds = object.geometricBounds;
        var objectDimentions = dimentions(objectBounds);

        var orientation = objectDimentions.width >= objectDimentions.height ? "landscape" : "portrait";

        var currentZoom = view.zoom;
        var visibleWidth = viewDimentions.width * currentZoom;
        var visibleHeight = viewDimentions.height * currentZoom;
        var margin = 56.692913385826772;
        var zoom = orientation === "landscape" ? (visibleWidth / (objectDimentions.width + margin)) : (visibleHeight / (objectDimentions.height + margin));

        var x = (objectBounds[0] + objectBounds[2]) / 2;
        var y = (objectBounds[1] + objectBounds[3]) / 2;

        view.centerPoint = [x, y];
        view.zoom = zoom;

    }
}

function dimentions(bounds) {
    return {
        width : bounds[2]-bounds[0],
        height : bounds[1]-bounds[3]
    };
}