examples/richtext.html

<!doctype html>
<!-- See http://www.firepad.io/docs/ for detailed embedding docs. -->
<html>

<head>
  <meta charset="utf-8" />
  <!-- Firebase -->
  <script src="https://www.gstatic.com/firebasejs/3.3.0/firebase.js"></script>

  <!-- CodeMirror -->
  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.17.0/codemirror.js"></script>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.17.0/codemirror.css" />

  <!-- Firepad -->
  <link rel="stylesheet" href="https://cdn.firebase.com/libs/firepad/1.4.0/firepad.css" />
  <script src="https://cdn.firebase.com/libs/firepad/1.4.0/firepad.min.js"></script>

  <style>
    html { height: 100%; }
    body { margin: 0; height: 100%; position: relative; }
      /* Height / width / positioning can be customized for your use case.
         For demo purposes, we make firepad fill the entire browser. */
    #firepad-container {
      width: 100%;
      height: 100%;
    }
  </style>
</head>

<body onload="init()">
  <div id="firepad-container"></div>

  <script>
    function init() {
      //// Initialize Firebase.
      //// TODO: replace with your Firebase project configuration.
      var config = {
        apiKey: "AIzaSyC_JdByNm-E1CAJUkePsr-YJZl7W77oL3g",
        authDomain: "firepad-tests.firebaseapp.com",
        databaseURL: "https://firepad-tests.firebaseio.com"
      };
      firebase.initializeApp(config);

      //// Get Firebase Database reference.
      var firepadRef = getExampleRef();

      //// Create CodeMirror (with lineWrapping on).
      var codeMirror = CodeMirror(document.getElementById('firepad-container'), { lineWrapping: true });

      //// Create Firepad (with rich text toolbar and shortcuts enabled).
      var firepad = Firepad.fromCodeMirror(firepadRef, codeMirror,
          { richTextToolbar: true, richTextShortcuts: true });

      //// Initialize contents.
      firepad.on('ready', function() {
        if (firepad.isHistoryEmpty()) {
          firepad.setHtml(
              '<span style="font-size: 24px;">Rich-text editing with <span style="color: red">Firepad!</span></span><br/>\n' +
              '<br/>' +
              '<div style="font-size: 18px">' +
              'Supports:<br/>' +
              '<ul>' +
                '<li>Different ' +
                  '<span style="font-family: impact">fonts,</span>' +
                  '<span style="font-size: 24px;"> sizes, </span>' +
                  '<span style="color: blue">and colors.</span>' +
                '</li>' +
                '<li>' +
                  '<b>Bold, </b>' +
                  '<i>italic, </i>' +
                  '<u>and underline.</u>' +
                '</li>' +
                '<li>Lists' +
                  '<ol>' +
                    '<li>One</li>' +
                    '<li>Two</li>' +
                  '</ol>' +
                '</li>' +
                '<li>Undo / redo</li>' +
                '<li>Cursor / selection synchronization.</li>' +
                '<li><checkbox></checkbox> It supports customized entities.</li>' +
                '<li>And it\'s all fully collaborative!</li>' +
              '</ul>' +
              '</div>');
        }
      });

      // An example of a complex custom entity.
      firepad.registerEntity('checkbox', {
        render: function (info, entityHandler) {
          var inputElement = document.createElement('input');
          inputElement.setAttribute('type', 'checkbox');
          if(info.checked) {
            inputElement.checked = 'checked';
          }
          inputElement.addEventListener('click', function () {
            entityHandler.replace({checked:this.checked});
          });
          return inputElement;
        }.bind(this),
        fromElement: function (element) {
          var info = {};
          if(element.hasAttribute('checked')) {
            info.checked = true;
          }
          return info;
        },
        update: function (info, element) {
          if (info.checked) {
            element.checked = 'checked';
          } else {
            element.checked = null;
          }
        },
        export: function (info) {
          var inputElement = document.createElement('checkbox');
          if(info.checked) {
            inputElement.setAttribute('checked', true);
          }
          return inputElement;
        }
      });
    }

    // Helper to get hash from end of URL or generate a random one.
    function getExampleRef() {
      var ref = firebase.database().ref();
      var hash = window.location.hash.replace(/#/g, '');
      if (hash) {
        ref = ref.child(hash);
      } else {
        ref = ref.push(); // generate unique location.
        window.location = window.location + '#' + ref.key; // add it as a hash to the URL.
      }
      if (typeof console !== 'undefined') {
        console.log('Firebase data: ', ref.toString());
      }
      return ref;
    }
  </script>
</body>
</html>