Panning Touch/Mouse Action     

Quasar offers full-featured Vue directives that can totally replace libraries like Hammerjs: v-touch-pan, v-touch-swipe and v-touch-hold.

These directives also work with mouse events, not only touch events, so you are able to build cool functionality for your App on desktops too.

We will be describing v-touch-pan on the lines below.

Basic Usage

<div v-touch-pan="handler">...</div>
// "handler" is a Function which receives an Object as parameter

Handler Parameter

The handler function/method will be called by the directive when a pan touch (or with mouse) action is taking place (any change in touch position triggers a call) on the DOM element and it receives the following parameter:

evt, // JS Native Event
position, // {top, left} Position in pixels
// where the user's finger is currently at
direction, // "left", "right", "up" or "down"
duration, // Number in ms since "pan" started
distance, // {x, y} Distance in pixels covered by panning
// on horizontal and vertical
delta, // {x, y} Distance in pixels since last called handler
isFirst, // Boolean; Has panning just been started?
isFinal // Boolean; Is panning over?

// example:
handler (obj) {
console.log(obj.direction) // "right"
console.log(obj.duration) // 78
console.log(obj.distance.x) // 273


Use horizontal or vertical when you only want to capture horizontal or vertical swipes.

<div v-touch-pan.horizontal="userSwiped">...</div>

Directive allows vertical scroll when capturing only horizontal panning.

When you don’t want to capture mouse actions too, use the nomouse modifier:

directive won't be triggered by mouse actions;
it's exclusively triggered by touch actions now:
<div v-touch-pan.nomouse="userHasSwiped">...</div>