Thread Navigating by Arrow keys

Use ← or → and Ctrl to navigate to previous, next, first or last page

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name            Thread Navigating by Arrow keys
// @name:vi         Thread Navigating by Arrow keys
// @namespace       https://greasyfork.org/scripts/6849-thread-navigating-by-arrow-keys
// @description     Use ← or → and Ctrl to navigate to previous, next, first or last page
// @description:vi  Use ← or → and Ctrl to navigate to previous, next, first or last page
// @author          theheroofvn
// @include         /^.*(thread|forum|diendan).*$/
// @include         http://www.vn-zoom.com/*
// @require         https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js
// @noframes
// @grant           GM_addStyle
// @version         6.8
// ==/UserScript==

$(document).ready(function () {
    $(window).focus();

    function custom_site(list) {
        if (list.length === 0) return 0;
        for (var i = 0; i < list.length; i++) {
            if (location.hostname == list[i].host) {
                prev = list[i].prev;
                next = list[i].next;
                first = list[i].first;
                last = list[i].last;
                up = list[i].up;
                return 1;
            }
        }
        return 0;
    }

    function checkScriptExist(script) {
        return $('script[src*="' + script + '"]').length > 0 ? true : false;
    }

    function detect_forum() {
        if (window.location.hostname === 'forum.xda-developers.com') {
            return 'vbb';
        }

        let result = "";

        if (checkScriptExist("vbulletin")) result = "vbb";
        else if (checkScriptExist("/js/xf/")) result = "xenforo";
        else if (checkScriptExist("general.js")) result = "mybb";
        else if (checkScriptExist("forum_fn.js")) result = "phpbb";

        return result;
    }

    var prev, next, first, last, up, up_sub = '[itemtype="https://schema.org/BreadcrumbList"] a';
    var site_info = [
        {
            host: "voz.vn",
            prev: "a.pageNav-jump--prev",
            next: "a.pageNav-jump--next",
            first: ".pageNav-main>.pageNav-page:first-child>a",
            last: ".pageNav-main>.pageNav-page:last-child>a"
        }
        , {
            host: "www.webtretho.com",
            prev: "a.arrowPrePage",
            next: "a.arrowNextPage",
            first: "a.arrowFstPage",
            last: "a.arrowLstPage"
        }, {
            host: "forum.bkav.com.vn",
            prev: "a.js-pagenav-prev-button",
            next: "a.js-pagenav-next-button",
            first: "a[data-page='1']",
            last: "a.js-pagenav-button:nth-last-child(2)",
            up: "#breadcrumbs a.crumb-link"
        }
    ];

    if (custom_site(site_info) === 0) {
        switch (detect_forum()) {
            case 'vbb':
                prev = 'a[rel="prev"]';
                next = 'a[rel="next"]';
                first = 'a[rel="start"], a[rel="first"]';
                last = 'a[title^="Last"], a[title*="uối"]';
                up = "span.navbar a, li.navbit a";
                break;
            case 'xenforo':
                prev = "a.pageNav-jump--prev";
                next = "a.pageNav-jump--next";
                last = ".pageNav-main > .pageNav-page:last-child > a";
                first = '.pageNav-main > .pageNav-page:first-child > a';
                // up = ".p-breadcrumbs";
                break;
            case 'mybb':
                prev = "a.pagination_previous";
                next = "a.pagination_next";
                first = "a.pagination_first";
                last = "a.pagination_last";
                up = ".navigation > a";
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            case 'phpbb':
                prev = ".display-options a.left-box.left";
                next = ".display-options a.right-box.right";
                first = ".pagination > span > a:first-child";
                last = ".pagination > span > a:last-child";
                up = ".navlinks > .icon-home a";
                break;
            default:
                return;
        }
    }

    var nav = {
        prev: function () {
            return $(prev);
        },

        next: function () {
            return $(next);
        },

        first: function () {
            if ($(first).length > 0) {
                return $(first);
            } else {
                var $prev = $(prev).first();

                if ($prev) {
                    $prev.attr('href', function (_, value) {
                        return value.replace(/page=\d+/, 'page=1');
                    });

                    return $prev;
                } else {
                    return $();
                }
            }
        },

        last: function () {
            if ($(last).length > 0) {
                return $(last);
            } else {
                var $next = $(next).first();

                if ($next) {
                    $next.attr('href', function (_, value) {
                        return value.replace(/page=\d+/, 'page=9999');
                    });

                    return $next;
                } else {
                    return $();
                }
            }
        },

        up: function () {
            return $(up).length > 0 ? $(up).last() : $(up_sub).last();
        }
    };

    var allowed = true;

    $(document).keydown(function (e) {
        if (!allowed) {
            return;
        }

        allowed = false;

        var key = e.keyCode,
            action = null;

        if (e.ctrlKey) {
            allowed = true;
            if (key == 39) action = "last";
            else if (key == 37) action = "first";
            else if (key == 8) action = "up";
        } else if (key == 39) {
            action = "next";
        } else if (key == 37) {
            action = "prev";
        } else {
            return;
        }

        if (!action || e.target.tagName == "INPUT" || e.target.tagName == "TEXTAREA" || e.target.isContentEditable) {
            return;
        }

        var $anchor = nav[action]();

        if ($anchor.length) {
            window.location.href = $anchor[0].href;
        }
    }).keyup(function (e) {
        allowed = true;
    });
});