quixote/src/descriptors/absolute_position.js

CSS unit and integration testing

// Copyright (c) 2017 Titanium I.T. LLC. All rights reserved. For license, see "README" or "LICENSE" file.
"use strict";

var ensure = require("../util/ensure.js");
var PositionDescriptor = require("./position_descriptor.js");
var Position = require("../values/position.js");

var X_DIMENSION = "x";
var Y_DIMENSION = "y";

var Me = module.exports = function AbsolutePosition(dimension, value) {
  ensure.signature(arguments, [ String, Number ]);

  this.should = this.createShould();

  switch(dimension) {
		case X_DIMENSION:
			PositionDescriptor.x(this);
			this._value = Position.x(value);
			break;
		case Y_DIMENSION:
			PositionDescriptor.y(this);
			this._value = Position.y(value);
			break;
		default: ensure.unreachable("Unknown dimension: " + dimension);
  }
  this._dimension = dimension;
};
PositionDescriptor.extend(Me);

Me.x = function(value) {
	ensure.signature(arguments, [ Number ]);
  return new Me(X_DIMENSION, value);
};

Me.y = function(value) {
	ensure.signature(arguments, [ Number ]);
	return new Me(Y_DIMENSION, value);
};

Me.prototype.value = function() {
  return this._value;
};

Me.prototype.toString = function() {
  return this._value + " " + this._dimension + "-coordinate";
};