SOURCE

/*
 * Linkedin 1 click connect tools
 *
 * Version: 1.0-alpha
 * This tools is developed based on Chrome for MAC 60.0
 * Previous versions support will not be considered
 * Use at your own risk
 * /


/* Find the embed element */
mainDiv = document.querySelector(".mn-connections-summary__no-top-border-radius.p0");


/* Add the action form to DOM */

form = document.createElement("form");
form.className = "mn-connections-summary ember-view";
mainDiv.appendChild(form);
form.style.width = "90%";

/*
 * Button START SCROLL will only scroll the page, and button STOP SCROLL will stop scroll.
 * After the scroll process is done, then you can hit the CONNECT All button to connect people on this page.
 * ONE CLICK TO CONNECT will auto scroll down and connect people with your settings or default if none available.
 */

 form.innerHTML = ''
    + '<lable style="font-size: 10px; text-align: left;">How much time to spare for connecting people? - 10 mins default</lable>'
    + '<input style="margin-top:5px; margin-right: 5px;"class= "time-mins-scroll" placeholder="number of minutes" type="text" name="scroll_time">'
    + '<lable style="font-size: 10px; text-align: left;">Page fresh interval - 5s default</lable>'
    + '<input style="margin-top:5px; margin-right: 5px;"class= "scroll-interval" placeholder="number of seconds" type="text" name="scroll_interval">'
    + '<input style="margin-top:5px; margin-right: 5px;"class= "start-scroll-btn button-secondary-medium" type="button" value="Start scroll">'
    + '<input style="margin-top:5px; margin-right: 5px;"class= "stop-scroll-btn button-secondary-medium" type="button" value="Stop scroll">'
    + '<input style="margin-top:5px; margin-right: 5px;"class= "connect-all-btn button-secondary-medium" type="button" value="Connect all">'
    + '<input style="margin-top:5px; margin-right: 5px;"class= "one-click-connect-btn button-secondary-medium" type="button" value="One Click to Connect all">';

var startScrollBtn = document.querySelector(".start-scroll-btn"),
stopScrollBtn = document.querySelector(".stop-scroll-btn"),
connectAllBtn = document.querySelector(".connect-all-btn"),
oneClickConnectBtn = document.querySelector(".one-click-connect-btn");

var cycleTimes = 0, scrollCycle = 10 * 60, scrollInterval = 5, scrollIntevalInit, peoplesOnPage = {};

(document.querySelector(".time-mins-scroll").value == "") ? scrollCycle = 10 * 60 : scrollCycle = document.querySelector(".time-mins-scroll").value * 60;

(document.querySelector(".scroll-interval").value == "") ? scrollInterval = 5 : scrollInterval = document.querySelector(".scroll-interval").value;


scrollToBottom = function(){
    scrollHeight = document.documentElement.scrollHeight;
    window.scrollTo(0, scrollHeight);
    cycleTimes = cycleTimes + 1;
    console.log("page refresh #" + cycleTimes);
};

//@todo 阻止重复点击事件


startScrollBtn.addEventListener("click", function(){

    (document.querySelector(".time-mins-scroll").value == "") ? scrollCycle = 10 * 60 : scrollCycle = document.querySelector(".time-mins-scroll").value * 60;
    (document.querySelector(".scroll-interval").value == "") ? scrollInterval = 5 : scrollInterval = document.querySelector(".scroll-interval").value;
    console.log(scrollCycle);
    console.log(scrollInterval);
    if(cycleTimes <= (scrollCycle / scrollInterval)){
        scrollIntevalInit = setInterval(scrollToBottom, scrollInterval * 1000);
    }
}, false);


//@todo 阻止重复点击事件

stopScrollBtn.addEventListener("click",function(){
    clearInterval(scrollIntevalInit);
});

connectAllBtn.addEventListener("click",function(){

    clearInterval(scrollIntevalInit);

    peoplesOnPage = document.querySelectorAll(".mn-pymk-list__action-container .button-secondary-small");
    for (var i = 0 ; i < peoplesOnPage.length; i++) {
        (function(index){
            setTimeout(
                function(){
                    peoplesOnPage[index].click();
                    console.log("#" + index + "clicked");
                }, scrollInterval * index * 1000);
        })(i);
    }
});

oneClickConnectBtn.addEventListener("click", function () {

    (document.querySelector(".time-mins-scroll").value == "") ? scrollCycle = 10 * 60 : scrollCycle = document.querySelector(".time-mins-scroll").value * 60;
    (document.querySelector(".scroll-interval").value == "") ? scrollInterval = 5 : scrollInterval = document.querySelector(".scroll-interval").value;

    scrollIntevalInit = setInterval(scrollToBottom, scrollInterval * 1000);

    if(cycleTimes > (scrollCycle/scrollInterval)){

        clearInterval(scrollIntevalInit);

        peoplesOnPage = document.querySelectorAll(".mn-pymk-list__action-container .button-secondary-small");

        for (var i = 0 ; i < peoplesOnPage.length; i++) {
            (function(index){
                setTimeout(
                    function(){
                        console.log(index);
                        peoplesOnPage[index].click();
                    }, scrollInterval * index * 1000);
            })(i);
        }
    }
});