Advanced Keyboard Shortcut Plugin With jQuery - Chordly.js

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License: MIT
Advanced Keyboard Shortcut Plugin With jQuery - Chordly.js

Chordly.js is an advanced, cross-browser key binding jQuery plugin that allows you to define and capture a sequence of key presses and then fire an event in the web application.

Perfect for cheatcodes, hotkeys, keyboard navigation, easter eggs, etc.

More features:

  • Allows multiple key keyboard combinations on the page.
  • Allows to ignore input fields.
  • Allows to pause, resume, toggle the key bindings.
  • Allows to customize the key buffer.

How to use it:

1. Include the Chordly.js plugin after you've loaded the latest jQuery JavaScript library.

<script src="/path/to/cdn/jquery.min.js"></script>
<script src="/path/to/js/chordly.js"></script>

2. Initialize the plugin and bind key sequences using the sequenceMap parameter:

    sequence: [
    matched: function () { console.log('bark!') }
    sequence: $.chordly.stringToSequence('[66] A [84]'), // B A T
    matched: function () { console.log('na na na na na') }
    sequence: [
      $.chordly.makeSequencePart($.chordly.scanCodeMap.Q, null, null, true),
    matched: function () { console.log('ctrl + (q | Q)!') }
    sequence: [
      $.chordly.makeSequencePart($.chordly.scanCodeMap.H, true, null, false),
    matched: function () { console.log('shift + H!') }

3. The example to bind a konami cheatcode.

$(document).chordly('bind', [{
  sequence: [
  matched: function () { console.log('cheat codes!') }

// or
$(document).chordly('bindSequence', 'UpArrow UpArrow DownArrow DownArrow LeftArrow RightArrow LeftArrow RightArrow B A', function () { alert("Konami Code!"); });

4. All possible options to customize the plugin.


  // don't treat shift as a individual key press
  captureShift: false, 

  // don't treat alt as a individual  key press
  captureAlt: false, 

  // don't treat ctrl as a individual key press
  captureCtrl: false, 

  // don't capture key events on form elements
  ignoreFormElements: true, 

  // event(s) to trigger the hot key check
  keyEvent: 'keyup', 

  // default buffer length
  maxBufferLength: 5, 

  // clear buffer on match
  clearBufferOnMatch: true, 

  // mapping of key sequences
  sequenceMap: [], 

  // true the pause the key listening
  paused: false, 

  // timeout length for key buffer clearing (0 means no timeout)
  bufferTimeoutMs: 0, 

  // timeout length since last recording of a key press before executing a match event (reset by next key press)
  greedyTimeoutMs: 0  

5. Fire an event after you type the correct key squence.

  .on('chordlyMatch', function (e) {
    console.log('chordlyMatch event:');
    console.log('\t event:', e);
    console.log('\t lookup:', e.lookup);
    console.log('\t sequence:', e.sequence);
    console.log('\t sequenceString:', e.sequenceString);
    console.log('\t originalEvent:', e.originalEvent);

6. API methods.

// pause

// resume

// toggle

// destroy

// push a key squence to the buffer
$(document).chordly('pushSequence', $.chordly.literalStringToSequence('dog'))

// unbind
$(document).chordly('unbind', $.chordly.literalStringToSequence('dog'));

// act on butter

// clear sequence buffer

// push and act a key squence
$(document).chordly('pushSequenceAndAct', $.chordly.literalStringToSequence('dog'));

This awesome jQuery plugin is developed by sandialabs. For more Advanced Usages, please check the demo page or visit the official website.