function constrain(value, max, size) {
				if (value < 0) {
					return 0;
				}

				if (value + size > max) {
					value = max - size;
					return value < 0 ? 0 : value;
				}

				return value;
			}
Move to absolute position.

@method moveTo
@param {Number} x Absolute x position.
@param {Number} y Absolute y position.
@return {tinymce.ui.Control} Current control instance.