vue-touch-events

Enable tap / swipe events for VueJS 2.x

Note: This is for Vue 2.x only.

Install

To install with npm or yarn, use

npm i -S vue2-touch-events

// or

yarn add vue2-touch-events

Usage

import Vue from 'vue'
import Vue2TouchEvents from 'vue2-touch-events'

Vue.use(Vue2TouchEvents)

In your .vue file:

<!-- bind a tap event -->
<span v-touch:tap="touchHandler">Tap Me</span>

<!-- tap is the default event, you can omit it -->
<span v-touch="touchHandler">Tap Me</span>

<!-- bind the swipe event, no matter direction -->
<span v-touch:swipe="swipeHandler">Swipe Here</span>

<!-- only when swipe left can trigger the callback -->
<span v-touch:swipe.left="swipeHandler">Swipe Here</span>

<!-- bind a long tap event -->
<span v-touch:longtap="longtapHandler">Long Tap Event</span>

<!-- bind a start and end event -->
<span v-touch:start="startHandler" v-touch:end="endHandler">Down,start/Up,end Event</span>

<!-- bind a move and moving event -->
<span v-touch:moved="movedHandler">Triggered once when starting to move and tapTolerance is exceeded</span>
<span v-touch:moving="movingHandler">Continuously triggering Event</span>


<!-- you can even mix multiple events -->
<span v-touch:tap="tapHandler"
    v-touch:longtap="longtapHandler"
    v-touch:swipe.left="swipeLeftHandler"
    v-touch:start="startHandler" 
    v-touch:end="endHandler"
    v-touch:swipe.right="swipeRightHandler">Mix Multiple Events</span>

APIs

Global config (optional)

Vue.use(Vue2TouchEvents, {
    disableClick: false,
    touchClass: '',
    tapTolerance: 10,
    swipeTolerance: 30,
    longTapTimeInterval: 400
})

• disableClick default false. Use touch event only, will not trigger click event.

  You should keep this value default if you use your website on both mobile and PC.

  If your website uses on mobile only, it's a good choice to set this value to true to get a better user experience, and it can resolve some touch pass-through issue.

• touchClass default: ''. Add an extra CSS class when touch start, and remove it when touch end.

  If disableClick is false, it will bind mouseenter and mouseleave event on your components too. So you can use it instead of :hover and :active.

  This is a global config, and you can use v-touch-class directive to overwrite this setting in a single component.

• tapTolerance default 10. The tolerance to ensure whether the tap event effective or not.

• swipeTolerance default 30. The tolerance to ensure whether the swipe event effective or not.

• longTapTimeInterval default 400 in millsecond. The minimum time interval to detect whether long tap event effective or not.

If you don't want bind click event at same time, just set disableClick to true.

Directives

v-touch

Bind the v-touch directive to components which you want to enable touch events.

v-touch accepts an argument to tell it which event you want to bind. tap, longtap and swipe are available.

<span v-touch:tap="tapHandler">Tap</span>

The first argument of the v-swipe callback is the direction of swipe event. It could be left, right, top or bottom.

v-swipe can accept extra modifiers. It means you can bind events only for specify direction.

export default {
    methods: {
        swipeHandler (direction) {
            console.log(direction)  // May be left / right / top / bottom
        }
    }
}

v-touch-class

v-touch-class directive allows you set an extra class on your components. If you already have a global config touchClass, this value will overwrite it.

For example:

<span v-touch:tap="touchHandler" v-touch-class="'active'">Tap Me</span>

Now, when you start to touch, it will add an extra active class automatically. And remove it when touch end.

If your setting of disableClick is false (it's default), it will bind mouseenter and mouseleave events, too.

So that you can use this feature to instead of :active and :hover pseudo class, for a better user experience.

/* before */
span:active, span:hover {
  background: green;
}

/* now, you can write like this */
span.active {
  background: green;
}

Modifiers

left, right, top, bottom

This four modifiers are for v-touch:swipe only, to specify which direction you want to bind events to.

self

Same as v-on:click.self, only trigger events when the event target is the currentTarget.

stop

Same as v-on:click.stop, stops event propagation.

prevent

Same as v-on:click.prevent, prevents default event handler from firing.

Others

How to add extra parameters

As mentioned by #3, if you want to add extra parameters for v-touch, you can't do that like v-on. The hack is that you can let your method returns a function and handle the extra parameters in the returned function.

<div v-touch:swipe="myMethod('myOtherParam')">Swipe</div>

export default {
  methods: {
    myMethod (param) {
      return function(direction, event) {
        console.log(direction, param);
        // do something ~
      }
    }
  }
}

Change History

Look at here

LICENSE

MIT License