consul/ui/packages/consul-ui/app/components/code-editor/index.hbs

<div class="toolbar-container">
  <div class="toolbar">
    <label class="title">
      {{#if (has-block "label")}}
        {{yield to="label"}}
      {{/if}}
    </label>
    <div class="tools">
      {{#if (has-block "tools")}}
        {{yield to="tools"}}
      {{else}}
        {{#if (and (not readonly) (not syntax))}}
          <PowerSelect
              @onChange={{action "change"}}
              @selected={{mode}}
              @searchEnabled={{false}}
              @options={{modes}} as |mode|>
            {{mode.name}}
          </PowerSelect>
          <div class="toolbar-separator"></div>
          <CopyButton
            @value={{value}}
            @name="value"
          />
        {{/if}}
      {{/if}}
    </div>
  </div>
</div>
<IvyCodemirror
  @value={{value}}
  @name={{name}}
  @class={{class}}
  @options={{options}}
  @valueUpdated={{action onkeyup}}
/>
<pre><code>{{#if (has-block "content")}}{{yield to="content"}}{{else}}{{value}}{{/if}}</code></pre>