Chrome扩展程序仅适用于一个网址

时间:2013-02-12 11:58:04

标签: google-chrome iframe google-chrome-extension

我正在创建Chrome扩展程序 我创造了一个指挥 1.background.js 2.icon.png 3.icon2.png 4.manifest.json 5.myscript.js

我的manifest.json代码是

{
  "manifest_version": 2,

  "name": "One-click Kittens",
  "description": "This extension demonstrates a browser action with kittens.",
  "version": "1.0",
"background": {
    "scripts": ["background.js"]
  },

  "permissions": [ "storage"],
"content_scripts": [
    {
      "matches": ["http://*/*"],
      "js": ["myscript.js"]
    }
  ],
  "browser_action": {
    "default_icon": "icon.png"
  }
}
  1. myscript.js的代码是内容脚本

    document.body.innerHTML =''+ document.body.innerHTML +'';         var iframe = document.getElementById(“frame1”);         function addingevent(){         chrome.extension.sendMessage({change:“icon”},function(response){           的console.log(response.resp);         });

        }
        iframe.onload = function(){
    
        var iframeDocument = iframe.contentDocument || iframe.contentWindow.document;
        if(iframeDocument != null)
        {var bb=iframeDocument.getElementById('mybutton');
        if(bb != null)
        {
        bb.addEventListener("click",addingevent,false)
        alert("Hello World");
    
        }}
    
        }
    
  2. 和background.js的代码是

    chrome.extension.onMessage.addListener(
      function(request, sender, sendResponse) {
    
        console.log("from a content script:from the extension");
    
    chrome.storage.local.get("icon",function(val){
    
    if(val.icon == "icon1")
    {chrome.browserAction.setIcon({"path" :"icon2.png"},function(){});
    chrome.storage.local.set({"icon":"icon"},function(){});
    }
    else
    {chrome.browserAction.setIcon({"path" :"icon.png"},function(){});
    
    chrome.storage.local.set({"icon":"icon1"},function(){});
    
    }
    
    });
    
    sendResponse({resp: "success"});
    
      });
    

    此扩展的目标是当用户点击从url http://onemoredemo.appspot.com/图标加载的框架中的按钮时,应在icon.png和icon2.png之间切换

    当我在网页中加载网址时,这个扩展功能非常有效{urg http://onemoredemo.appspot.com/创建了框架,当我点击按钮时它正在改变图标但是当我打开url stackoverflow.com然后框架被创建并显示一个按钮它,但是当我点击按钮图标保持不变时,我预计该图标将被更改而不管url为什么它在其他网址中没有变化?请指明原因

1 个答案:

答案 0 :(得分:0)

有多个问题

  • 您是否希望http://stackoverflow.com上存在ID为frame1的DOM元素 的document.getElementById( “帧1”);
  • document.body.innerHTML=''+document.body.innerHTML+'';的重要性是什么?