Javascript 如何将chrome扩展名仅获取一次sendMessage?
当前版本的my chrome扩展从当前选项卡中提取一组字符串,打开带有特定url的新选项卡,然后继续插入字符串并使用jQuery提交表单。我遇到的问题是,如果我在之后打开一个单独的选项卡并转到带有表单的URL,它会继续再次插入数据并提交表单。它将持续这样做,所以我永远不能使用网站以外的自动化与铬扩展 这是background.js中发送字符串的函数Javascript 如何将chrome扩展名仅获取一次sendMessage?,javascript,jquery,google-chrome-extension,Javascript,Jquery,Google Chrome Extension,当前版本的my chrome扩展从当前选项卡中提取一组字符串,打开带有特定url的新选项卡,然后继续插入字符串并使用jQuery提交表单。我遇到的问题是,如果我在之后打开一个单独的选项卡并转到带有表单的URL,它会继续再次插入数据并提交表单。它将持续这样做,所以我永远不能使用网站以外的自动化与铬扩展 这是background.js中发送字符串的函数 chrome.browserAction.onClicked.addListener(function (tab) { //Fired when U
chrome.browserAction.onClicked.addListener(function (tab) { //Fired when User Clicks ICON
if(zip){
zipCode = zip;
zip = null;
}else{
zipCode = prompt('Zip code');
}
if(/^\d{5}(-\d{4})?$/.test(zipCode)){
var newURL = "https://www.medicare.gov/find-a-plan/questions/home.aspx?search";
chrome.tabs.create({ url: newURL });
chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
id = "2136760320";
if (changeInfo.status == 'complete') {
chrome.tabs.query({active: true, currentWindow: true}, function(tabs){
chrome.tabs.sendMessage(tabId, {zip: zipCode, pass: pwd, drugID: id}, function(response) {});
});
}
});
}
});
这是与URL匹配的内容脚本,与jquery一起插入。只有当chrome扩展是打开页面的扩展时,我才需要运行它
var pwd = "";
var id = "";
var onMessageHandler = function(message, sender, sendResponse){
pwd = message.pass;
id = message.drugID;
$("#saveWorkID").val(id);
var date = pwd.split("/");
var month = date[0];
if (month.length < 2) month = "0" + month;
var day = date[1];
var year = date[2];
$("#month").val(month);
$("#day").val(day);
$("#year").val(year);
$("#lnkFind span").trigger("click");
}
chrome.runtime.onMessage.addListener(onMessageHandler);
任何关于如何防止内容脚本尝试读取已发送消息的帮助都将不胜感激。不要通过清单文件注入内容脚本,而是尝试将其注入chrome.tabs.create的回调函数中,类似于
chrome.tabs.create({url:newURL},函数(tabcreated){
executeScript(tabcreated,{file:“jquery.js”},function(){
executeScript(tabcreated,{file:“stage1.js”});
});
})
这样,只有在您的扩展创建了选项卡之后,才会注入该URL,而不是以任何其他方式打开带有该URL的选项卡。这个问题似乎有您的答案
{
"manifest_version": 2,
"name": "PDP Lookup",
"description": "Lookup the PDP druglist of a current user",
"version": "1.0",
"icons": {"48": "icon.png",
"128": "icon128.png" },
"browser_action":
{
"default_icon": "icon.png"
},
"background":{
"scripts": [
"jquery.js",
"background.js"
]
},
"content_scripts": [
{
"matches": [
"https://www.medicare.gov/find-a-plan/questions/home.aspx?search"
],
"js": [
"jquery.js",
"stage1.js"
]
},
{
"matches": [
"https://www.medicare.gov/find-a-plan/questions/enter-your-information.aspx"
],
"js": [
"jquery.js",
"stage2.js"
]
},
{
"matches": [
"https://XXX.XXX.XXX/XX*"
],
"js": [
"jquery.js",
"search.js"
]
},
{
"matches": [
"https://plancompare.medicare.gov/pfdn/PlanFinder/DrugSearch"
],
"js": [
"jquery.js",
"stage3.js"
]
}
],
"permissions": [
"tabs",
"https://*/*",
"http://*/*"
]
}