josdejong/jsoneditor

Code mode (Ace editor) not working inside shadow DOM

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#742 opened on Jul 16, 2019

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 (3 comments) (0 reactions) (0 assignees)JavaScript (2,034 forks)batch import
bughelp wanted

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Description

Hi, I want to make a JSON editor custom element. But I meet some problems. Here is my code:

<!DOCTYPE HTML>
<html>
<head>
    <!-- when using the mode "code", it's important to specify charset utf-8 -->
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <script src="jsoneditor/jsoneditor.min.js"></script>
</head>
<body>
    <json-editor></json-editor>
</body>
<template id='custom-template'>
        <link href="jsoneditor/jsoneditor.min.css" rel="stylesheet" type="text/css">
        <div id="jsoneditor" style="width: 500px; height: 500px;"></div>
</template>
<script>
        var template = document.getElementById('custom-template')
        class CustomJsonEditor extends HTMLElement {
        constructor() {
          super();
          this._shadowRoot = this.attachShadow({mode: 'open'})
          this._shadowRoot.appendChild(template.content.cloneNode(true))
          var options = {
            mode: 'code',
            modes: ["code", "tree"],
          };
    
          this.container = this._shadowRoot.querySelector('div');
          this.editor = new JSONEditor(this.container, options);
        }
      }
      customElements.define('json-editor', CustomJsonEditor);
    </script>
</html>

And the Json editor will become this: image It seems that I need to load the ace theme somewhere, right? I am a beginner on JavaScript. Could you give me some helps? Thank you.

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