examples/hint-emoji.html

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  <script type="text/javascript">
    $(document).ready(function () {
      var self = this;

      // load github's emoji list
      $.ajax({
        url: 'https://api.github.com/emojis'
      }).then(function (data) {
        var emojis = Object.keys(data);
        var emojiUrls = data;

        $('.summernote').summernote({
          height: 300,
          hint: [{
            search: function (keyword, callback) {
              callback($.grep(emojis, function (item) {
                return item.indexOf(keyword)  === 0;
              }));
            },
            match: /\B:([\-+\w]+)$/,
            template: function (item) {
              var content = emojiUrls[item];
              return '<img src="' + content + '" width="20" /> :' + item + ':';
            },
            content: function (item) {
              var url = emojiUrls[item];
              if (url) {
                return $('<img />').attr('src', url).css('width', 20)[0];
              }
              return '';
            }
          }]
        });
      });
    });
  </script>
</head>
<body>
<textarea class="summernote">Type text start with ":". For example, :smile or :+1:.</textarea>
</body>
</html>