discourse-data-explorer/assets/javascripts/discourse/components/hljs-code-view.js.es6

import debounce from "discourse/lib/debounce";
import highlightSyntax from "discourse/lib/highlight-syntax";
import { bufferedRender } from "discourse-common/lib/buffered-render";

export default Ember.Component.extend(
  bufferedRender({
    buildBuffer(buffer) {
      buffer.push("<pre><code class='" + this.get("codeClass") + "'>");
      buffer.push(Handlebars.Utils.escapeExpression(this.get("value")));
      buffer.push("</code></pre>");
    },

    _refreshHighlight: debounce(function() {
      this.rerenderBuffer();
    }, 50).observes("value"),

    _applyHighlight: function() {
      highlightSyntax(this.$());
    }.on("didInsertElement")
  })
);