我创建一个Chrome扩展 我创建了一个diretory与 1.background.js 2.icon.png 3.icon2.png 4.manifest.json 5.myscript.jsChrome扩展工作只为一个URL
我的manifest.json代码为myscript.js
{
"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"
}
}
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){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"); }} }
和background.js的代码是这个扩展的
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"});
});
目的是当在按钮上,其是在从URL http://onemoredemo.appspot.com/图标加载的帧应当之间切换用户点击icon.png和icon2.png
这个扩展工作完美时,我加载在网址与url http://onemoredemo.appspot.com/有框架创建,当我点击按钮它是更改图标,但当我打开url stackoverflow.com然后框架被创建并显示一个按钮,但当我点击按钮图标仍然是相同的我期待该图标将被改变而不考虑url为什么它不会改变其他网址? ?请说明原因
document.body.innerHTML ='
'+document.body.innerHTML+'
我正在使用JavaScript添加frame1,然后得到它 – 2013-02-12 12:37:38
由于某些格式化原因它已被省略,现在请回复 – 2013-02-12 12:38:03