Geocaching Puzzle Helper

Show hidden user added elements on Geocaching Mystery Cache Page
当前为 2023-05-22 提交的版本，查看最新版本。
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// ==UserScript==
// @name Geocaching Puzzle Helper
// @description Show hidden user added elements on Geocaching Mystery Cache Page
// @match http://www.geocaching.com/geocache/*
// @match https://www.geocaching.com/geocache/*
// @match http://geocaching.com/geocache/*
// @match https://geocaching.com/geocache/*
// @version 1.8
// @namespace    https://gf.qytechs.cn/en/scripts/464566-geocaching-puzzle-helper
// @homepage     https://gf.qytechs.cn/en/scripts/464566-geocaching-puzzle-helper
// @license         MIT
// ==/UserScript==

(function() {
    'use strict';

    scanElemForStuff(document.getElementById("ctl00_ContentBody_ShortDescription"));
    scanElemForStuff(document.getElementById("ctl00_ContentBody_LongDescription"));
    showFinalLocation();

    function showFinalLocation() {
        var elemFN = document.getElementById("awpt_FN");

        if (elemFN !== null) {
           var coordElem = elemFN.parentNode.nextElementSibling.nextElementSibling.nextElementSibling;
;
           // Find right sibling

           if (coordElem !== null) {
               var txt = coordElem.innerText;
               if (txt.length > 4) {
                   var locElem = document.getElementById("ctl00_ContentBody_CacheInformationTable").firstElementChild.firstElementChild.firstElementChild.firstElementChild;
                   addButton(locElem, "FN",txt, onClickHandler, true);
               }
           }
        }
    }

    function addButton(parent, text, title, onclick, bAppend=false) {
        const button = document.createElement('button');
        button.innerHTML = text;
        button.onclick = onclick;
        button.title = title;
        button.addEventListener('contextmenu', (e) => e.preventDefault());

        if (bAppend) {
            parent.appendChild(button);
        }
        else {
            parent.insertBefore(button, parent.firstChild);
        }
        return button;
    }

    function scanElemForStuff(elem) {
        var item;
        if (elem != null) {

            item = getHostedLinks(elem);
            if (item.length > 0) {
                addButton(elem,"Hosted",item.join('\r\n'),onClickHandler);
            }

            item = getExtraText(elem);
            if (item.length > 0) {
                addButton(elem,"Extra",item.join('\r\n'),onClickHandler);
            }

            item = getWhiteText(elem);
            if (item.length > 0) {
                addButton(elem,"White Text",item.join('\r\n'),onClickHandler);
            }

            item = getAllComments(elem);
            if (item.length > 0) {
                addButton(elem,"Comments",item.join('\r\n'),onClickHandler);
            }

            item = getAllLinks(elem);
            if (item.length > 0) {
                addButton(elem,"Links",item.join('\r\n'),onClickHandler);
            }


        }
    }

    function getAllComments(rootElem) {
        var comments = [];
        // Fourth argument, which is actually obsolete according to the DOM4 standard, is required in IE 11
        var iterator = document.createNodeIterator(rootElem, NodeFilter.SHOW_COMMENT, null, false);
        var curNode;
        while (curNode = iterator.nextNode()) {
            comments.push(curNode.nodeValue);
        }
        return comments;
    }

    function getAllLinks(rootElem) {
        var comments = [];
 
        var iterator = rootElem.getElementsByTagName('a');
        for (var i = 0; i < iterator.length; i++) {
            var elem = iterator[i];
            comments.push(elem.href);
        }

        return comments;
    }

        function getHostedLinks(rootElem) {
        var comments = [];

        var iterator = rootElem.getElementsByTagName('img');
        for (var i = 0; i < iterator.length; i++) {
            var elem = iterator[i];
            var str = elem.src.toLowerCase();
            if ((!str.includes("s3.amazonaws.com/gs-geo-images") && !str.includes(".geocaching.com") && !str.includes(".groundspeak.com")) ||
                str.includes("?")) {
                 comments.push(str);
            }
        }

        return comments;
    }

    function getWhiteText(rootElem) {
        var comments = [];
        var attribute1 = "color";
        var values = ["#ffffff","white", "rgb(255, 255, 255)"];

        var element_type = element_type || "*";
        var All = rootElem.getElementsByTagName(element_type);
        for (var i = 0; i < All.length; i++) {
            var elem = All[i];
            if (elem.getAttribute(attribute1) !== null) {
                if (values.includes(elem.getAttribute(attribute1).toLowerCase())) { comments.push( elem.innerHTML); }
            }
            if (values.includes(elem.style.color)) { comments.push( elem.innerHTML); }
        }

        return comments;
    }

        function getExtraText(rootElem) {
        var comments = [];
        var attributes = ["alt", "name", "id"];

        var element_type = element_type || "*";
        var All = rootElem.getElementsByTagName(element_type);
        for (var i = 0; i < All.length; i++) {
            for (var j = 0; j < All.length; j++) {
                if (All[i].getAttribute(attributes[j]) != null) { comments.push( All[i].getAttribute(attributes[j])); }
            }
        }

        return comments;
    }

    function onClickHandler(e) {
        alert(this.title);
        return false;
    }



})();
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