touchy

Yet another tap, tap:hold and swipe events enabler. Based on xtap-event/tap.js

TODO: Add unit tests

installation

npm i --save touchy

usage

// usually this is enough to generate the events
// this can be done in a module that can be required
// at the beginning of your app to generate the events
var touchy = require('touchy');
touchy.enableOn(document);

Events

This library will generate the following events:

• tap
• tap:hold
• swipe
• swipe:up
• swipe:down
• swipe:left
• swipe:right

tap

The tap event is generated when:

• a touchstart/mousedown event is followed by a touchend/mouseup
• the end target is the same as the start target
• the user hasn't move the finger between the starting event and the end event for more than options.minTapDisplacementTolerance (default: 10px)
• the time between touchstart/mousedown and touchend/mouseup is less than opts.tapHoldMinThreshold (default: 500ms)

Example

// usually this is enough to generate the events
var touchy = require('touchy');
touchy.enableOn(document);

var ele = document.querySelector('#selector');
ele.on('tap', function (e) {
  console.log('tap!');
});

tap:hold

The tap:hold event is generated when:

• a touchstart/mousedown event is followed by a touchend/mouseup
• the end target is the same as the start target
• the user hasn't move the finger between the starting event and the end event for more than options.minTapDisplacementTolerance (default: 10px)
• the user has not released the finger for more than opts.tapHoldMinThreshold (default: 500ms)

Example

// usually this is enough to generate the events
var touchy = require('touchy');
touchy.enableOn(document);

var ele = document.querySelector('#selector');
ele.on('tap:hold', function (e) {
  console.log('tap:hold!');
});

swipe, swipe:left, swipe:right, swipe:up and swipe:down

The swipe event is generated when

• a touchstart/mousedown event is followed by touchmove/mousemove and then by a touchend/mouseup
• the user has moved the finger between the starting event and the end event for more than options.minTapDisplacementTolerance (default: 10px)
• a tap:hold event has not being generated

Example

// usually this is enough to generate the events
var touchy = require('touchy');
touchy.enableOn(document);

var ele = document.querySelector('#selector');
ele.on('swipe', function (e) {
  console.log('swipe', e.detail.direction); // direction: down, up, left, right
});

Custom events are also generated with the direction of the swipe: swipe:left, swipe:right, swipe:up and swipe:down

// usually this is enough to generate the events
var touchy = require('touchy');
touchy.enableOn(document);

var ele = document.querySelector('#selector');
ele.on('swipe:left', function (e) {
  console.log('swipe:left');
});