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Endless Gamersky

Load more results automatically and endlessly.

当前为 2015-11-27 提交的版本，查看 最新版本。

// ==UserScript==
// @name            Endless Gamersky
// @description     Load more results automatically and endlessly.
// @author          fluffy
// @oujs:author     fluffy
// @namespace       [email protected]
// @homepageURL     https://greasyfork.org/en/scripts/14183-endless-gamersky
// @supportURL      
// @icon            
// @include         http://*.gamersky.com/*
// @run-at          document-start
// @grant           GM_xmlhttpRequest
// @version         0.0.6
// ==/UserScript==

document.addEventListener('DOMContentLoaded', function () {

    // NOTE: Options
    var request_pct = 10; // percentage of window height left on document to request next page, value must be between 0-1
    var event_type = "scroll"; // or "wheel"
    var on_page_refresh = 1;
    // 0: reload all previous pages requested
    // 1: load only the first page (prevent restoring the scroll position)
    // 2: load only the last page requested

    var Mid2L_ctt = document.querySelector(".Mid2L_con");
    var old_scrollY = 0;
    var scroll_events = 0;
    var next_link = null;
    var cols = [];
    var request_offsetHeight = 0;
    var stop = false;

    window.addEventListener(event_type, onScroll, false);
    window.addEventListener("beforeunload", function () {
        window.scrollTo(0, 0);
    }, false);

    function requestNextPage(link) {
        console.log("request next");
        console.log(link);
        GM_xmlhttpRequest({
            method: "GET",
            url: link,
            onload: function (response) {
                var holder = document.createElement("div");
                holder.innerHTML = response.responseText;

                if (holder.querySelector(".page_css>a:last-of-type").innerHTML!="下一页") {
                    stop = true;
                }

                next_link = holder.querySelector(".page_css>a:last-of-type").href;

                var next_col = document.createElement("div");
                next_col.className = "EG_col";
                next_col.appendChild(holder.querySelector(".Mid2L_con"));

                cols.push(next_col);
                console.log("Page no: " + cols.length);
                next_col.id = next_col.className + "_" + (cols.length - 1); // NOTE: add unique id for every new col

                if (!Mid2L_ctt || cols.length === 1) // NOTE: needs to be rechecked on a state reset too, and late insertation of element on google instant
                    Mid2L_ctt = document.querySelector(".Mid2L_con");
                Mid2L_ctt.appendChild(next_col);
                window.addEventListener(event_type, onScroll, false);
            }
        });

    }

    function onScroll(e) {
        if (stop) {
            window.removeEventListener(event_type, onScroll, false);
            return;
        }
        var y = window.scrollY;
        // if (scroll_events === 0) old_scrollY = y; // stops only if scroll position was on 2. page
        var delta = e.deltaY || y - old_scrollY; // NOTE: e.deltaY for "wheel" event
        if (delta > 0 && (window.innerHeight + y) >= (document.body.clientHeight - (window.innerHeight * request_pct))) {
            console.log("scroll end");
            window.removeEventListener(event_type, onScroll, false);

            try {
                requestNextPage(next_link || document.querySelector(".page_css>a:last-of-type").href);
            } catch (err) {
                console.error(err.name + ": " + err.message);
                // NOTE: recovery unnecessary, input event handles it with reset on new search
            }
        }
        old_scrollY = y;
        scroll_events += 1;
    }

    // NOTE: Resets the script state on a new search
    function reset() {
        if (input.value !== input_value) {
            input_value = input.value;
            window.scrollTo(0, 0);
            for (var i = 0; i < cols.length; i++)
                rcnt.removeChild(cols[i]);
            cols = [];
            next_link = null;
            old_scrollY = 0;
            scroll_events = 0;
            console.log("RESET");
            }
    }

    console.log("eGamersky.js initialized");
});
console.log("eGamersky.js loaded");