在Chrome扩展程序中运行Javascript - >基本?

时间:2013-10-06 05:43:56

标签: javascript google-chrome google-chrome-extension

我觉得我错过了一些非常明显的东西,但我一直在寻找各处,似乎无法使这项工作成功。简而言之,我想将一个小的Javascript脚本转换为chrome扩展,以使其更易于使用。

脚本只是从textArea读取文本,修改脚本并将其输出到div中。在独立运行时,它可以与任何浏览器完美配合,但在作为Chrome扩展程序运行时似乎不想工作

以下是文件(我基本上试图转换示例):

谢谢!

的manifest.json

    {
  "manifest_version": 2,

  "name": "One-click Kittens",
  "description": "This extension demonstrates a 'browser action' with kittens.",
  "version": "1.0",

  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "https://secure.flickr.com/"
  ]
}

popup.html

<!doctype html>
<html>
  <head>
    <title>Getting Started Extension's Popup</title>
    <style>
      body {
        min-width: 357px;
        overflow-x: hidden;
      }

      img {
        margin: 5px;
        border: 2px solid black;
        vertical-align: middle;
        width: 75px;
        height: 75px;
      }
    </style>

    <!--
      - JavaScript and HTML must be in separate files: see our Content Security
      - Policy documentation[1] for details and explanation.
      -
      - [1]: http://developer.chrome.com/extensions/contentSecurityPolicy.html
     -->
    <script src="popup.js"></script>
  </head>
  <body>

    <textarea id="source">Text Entry.</textarea>
    <button onclick="main()" id="buttons">Generate</button>

    <div id="result">       
    </div>

  </body>
</html>

popup.js

function main() {
    var source = document.getElementById('source').value;
    document.getElementById("result").innerHTML = source;
}

1 个答案:

答案 0 :(得分:8)

根据chrome扩展文档,

不会执行内联JavaScript。此限制禁止内联<script>块和内联事件处理程序(例如<button onclick="...">)。

阅读:http://developer.chrome.com/extensions/contentSecurityPolicy.html#JSExecution

在popup.js中用作

document.addEventListener('DOMContentLoaded', function () {
      document.querySelector('button').addEventListener('click', main);      
});
function main() {
    var source = document.getElementById('source').value;
    document.getElementById("result").innerHTML = source;
}