Combine Trumbowyg with RestInPlace. I had some difficulties extending RestInPlaceEditor.forms with the "trumbowyg" type. Mainly because the callbacks are not documented in Trumbowyg, I believe. I was not able to use the RestInPlace method _this.update(); but had to copy the code from restinplace.js and implement a custom ajax handling. This leav…

editablepage.html

<div id=page_1 data-url=/pages/1><>
  <h1 class="rest-in-place" data-attribute="title">Nord-Norges stØrste næringsmagasin</h1>
  <div id=pagebody_1 class="pagebody" data-attribute="body" data-formtype="trumbowyg" tabindex=1>
    <h1>mama</h1>
    <p>written text</p>
  </div>

  <script>
    $("#pagebody_1").restInPlace();
  </script>
</div>

trumbo_in_place.js

// Define the Trumbowyg form type for RestInPlace
var trumbowyg = {
  "trumbowyg" : {
    activateForm: function() {
      var _this = this;
      var domid = this.$element[0].id;

      this.$element.trumbowyg({
        autogrow: true
      });

      this.$element[0].focus();

      this.$element.keyup(function(e){
        if (e.keyCode === 27) {
          $("#"+domid).trumbowyg("destroy");
          return _this.abort();
        }
      });

      return this.$element.focusout(function() {
        var updateRequest, data;

        data = _this.getEncodedTokenAuthenticationParams();
        data["_method"] = 'put';
        data["" + _this.objectName + "[" + _this.attributeName + "]"] = _this.$element[0].innerHTML;

        _this.$element.trigger('update.rest-in-place', data);

        updateRequest = _this.ajax({
          type: "post",
          data: data
        });
        updateRequest.done(function(data) {
          if (data) {
            return _this.loadSuccessCallback(data);
          } else {
            return _this.loadViaGET();
          }
        });
        updateRequest.fail(function(jqXHR, textStatus) {
          if (jqXHR.status === 200 && textStatus === "parsererror") {
            return _this.loadViaGET();
          } else {
            _this.$element.trigger('failure.rest-in-place');
            return _this.abort();
          }
        });
        _this.$element.trumbowyg("destroy");
        $(domid).restInPlace();
//        return _this.update(); // does not work
      });
    },
    getValue: function() {
      return null;
      return this.$element[0].innerHTML; // does not do anything
    }
  }
};

// Extend RestInPlaceEditor with Trumbowyg form type
$.extend(RestInPlaceEditor.forms, trumbowyg);

I've made a pull request at janv/rest_in_place#47