gethue/ko/bindings/ko.augmentHtml.js

Hue is an Open source SQL Query Editor for Databases/Warehouses

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//
//     http://www.apache.org/licenses/LICENSE-2.0
//
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import $ from 'jquery';
import * as ko from 'knockout';

// TODO: less from bootstrap?

ko.bindingHandlers.augmentHtml = {
  render: function (element, valueAccessor) {
    const _val = ko.unwrap(valueAccessor());
    const _enc = $('<span>').html(_val);
    if (_enc.find('style').length > 0) {
      const parser = new less.Parser();
      $(_enc.find('style')).each((cnt, item) => {
        const _less = '.result-container {' + $(item).text() + '}';
        try {
          parser.parse(_less, (err, tree) => {
            $(item).text(tree.toCSS());
          });
        } catch (e) {}
      });
      $(element).html(_enc.html());
    } else {
      $(element).html(_val);
    }
  },
  init: function (element, valueAccessor, allBindingsAccessor, viewModel) {
    ko.bindingHandlers.augmentHtml.render(element, valueAccessor, allBindingsAccessor, viewModel);
  },
  update: function (element, valueAccessor, allBindingsAccessor, viewModel) {
    ko.bindingHandlers.augmentHtml.render(element, valueAccessor, allBindingsAccessor, viewModel);
  }
};