const getDirection = (t, s) => (t > s && t > 10 ? 'horizontal' : s > t && s > 10 ? 'vertical' : ''); export default { data() { return {}; }, methods: { resetTouchStatus() { this.direction = ''; this.deltaX = 0; this.deltaY = 0; this.offsetX = 0; this.offsetY = 0; }, touchStart(t) { this.resetTouchStatus(); const [s] = t.touches; this.startX = s.clientX; this.startY = s.clientY; }, touchMove(t) { const [s] = t.touches; this.deltaX = s.clientX - this.startX; this.deltaY = s.clientY - this.startY; this.offsetX = Math.abs(this.deltaX); this.offsetY = Math.abs(this.deltaY); this.direction = getDirection(this.offsetX, this.offsetY); }, }, };