MyAnimeList(MAL) - Search Filter

This script hides search results that you already have on your list
当前为 2016-08-16 提交的版本，查看最新版本。
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// MAL Search Filter!
// version 1.2
// 2010-06-14
// Copyright (c) 2009, Bastvera <[email protected]>
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script.
//
// To install, you need Greasemonkey: http://greasemonkey.mozdev.org/
// Then restart Firefox and revisit this script. (Or Tampermonkey for chrome & Opera / Violentmonkey for Opera 12)
// Under Tools, there will be a new menu item to "Install User Script".
// Accept the default configuration and install.
//
// To uninstall, go to Tools/Manage User Scripts,
// select "MAL Search Filter", and click Uninstall.
//
// --------------------------------------------------------------------
//
// ==UserScript==
// @name           MyAnimeList(MAL) - Search Filter
// @namespace      http://thayanger.neostrada.pl
// @include        http://myanimelist.net/anime.php?*
// @include        http://myanimelist.net/manga.php?*
// @include        http://myanimelist.net/anime/genre/*
// @include        http://myanimelist.net/manga/genre/*
// @include        http://myanimelist.net/anime/producer/*
// @include        http://myanimelist.net/manga/magazine/*
// @exclude        http://myanimelist.net/anime.php?id=*
// @exclude        http://myanimelist.net/manga.php?id=*
// @description    This script hides search results that you already have on your list
// @version        1.3.0
// @author         Bastvera <[email protected]>, Cpt_mathix <fixed script>
// ==/UserScript==

//Anchor for checkbox
var	Anchor = document.evaluate(
    "//*[@id='content']/div[contains(@class,'normal_header')]",
    document,
    null,
    XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
    null);

var AnchorLink = Anchor.snapshotItem(0);

if(AnchorLink !== null){

    //Element Placing
    var newElement;
    newElement = document.createElement('BR');
    AnchorLink.appendChild(newElement);

    var checkbox1 = document.createElement('input');
    checkbox1.type = 'checkbox';
    AnchorLink.appendChild(checkbox1);

    newElement = document.createElement('label');
    newElement.setAttribute('for','firstName');
    newElement.appendChild(document.createTextNode('Hide Search Results that you have on your list. (Show PTW:'));
    AnchorLink.appendChild(newElement);
    newElement.style.fontWeight="normal";
    newElement.style.fontSize="10px";
	
	var checkbox2 = document.createElement('input');
    checkbox2.type = 'checkbox';
    AnchorLink.appendChild(checkbox2);
	
	newElement = document.createElement('label');
    newElement.setAttribute('for','firstName');
    newElement.appendChild(document.createTextNode(')'));
    AnchorLink.appendChild(newElement);
    newElement.style.fontWeight="normal";
    newElement.style.fontSize="10px";

    //Anime list entries search
    var allElements = document.evaluate(
        "//a[contains(@class,'Lightbox_AddEdit button_edit')]",
        document,
        null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
        null);
	
	var ptwElements = document.evaluate(
        "//a[contains(@class,'Lightbox_AddEdit button_edit') and contains(@class,'plantowatch')]",
        document,
        null,
        XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
        null);

    //Get or Set status of checkbox
	var activate = true;
    var checkboxmem1 = (localStorage.getItem('checkboxmem1_search') === "true"); //Get checkbox status
    if(checkboxmem1 === null){
        checkboxmem1=false;
        localStorage.setItem('checkboxmem1_search', checkboxmem1);
        checkbox1.checked=checkboxmem1;
		activate = false;
    }
	var checkboxmem2 = (localStorage.getItem('checkboxmem2_search') === "true"); //Get checkbox status PTW
	if(checkboxmem2 === null){
        checkboxmem2=false;
        localStorage.setItem('checkboxmem2_search', checkboxmem2);
        checkbox2.checked=checkboxmem2;
		activate = false;
    }
	
    if (activate) {
        checkbox1.checked=checkboxmem1;
		checkbox2.checked=checkboxmem2;
        if(checkbox1.checked === true)
            HideDivs();
    }

    //Listener 1
    checkbox1.addEventListener('change',function () {

        if(checkbox1.checked === true){
			checkbox2.disabled = false;
            HideDivs(checkbox2.checked, allElements);
        }

        if(checkbox1.checked === false){
			checkbox2.disabled = true;
            ShowDivs(checkbox2.checked, allElements);
        }

        localStorage.setItem('checkboxmem1_search', checkbox1.checked);

    },false);
	
	//Listener 2
    checkbox2.addEventListener('change',function () {

        if(checkbox2.checked === true && checkbox1.checked === true){
            ShowDivs(false, ptwElements);
        }

        if(checkbox2.checked === false && checkbox1.checked === true){
            HideDivs(false, ptwElements);
        }

        localStorage.setItem('checkboxmem2_search', checkbox2.checked);

    },false);
}

function HideDivs(showPTW, elements){
    for (var i = 0; i < elements.snapshotLength; i++){
        var EditLink = elements.snapshotItem(i);
		var PTW = showPTW ? !EditLink.classList.contains("plantowatch") : true;
        if (EditLink.parentNode.parentNode.parentNode.classList.contains("js-seasonal-anime") && PTW)
            EditLink.parentNode.parentNode.parentNode.style.display="none";
        else if (PTW) {
			EditLink.parentNode.parentNode.style.display="none";
		}
    }
}

function ShowDivs(showPTW, elements){
    for (var i = 0; i < elements.snapshotLength; i++){
        var EditLink = elements.snapshotItem(i);
		var PTW = showPTW ? !EditLink.classList.contains("plantowatch") : true;
        if (EditLink.parentNode.parentNode.parentNode.classList.contains("js-seasonal-anime") && PTW)
            EditLink.parentNode.parentNode.parentNode.removeAttribute('style');
        else if (PTW) {
			EditLink.parentNode.parentNode.removeAttribute('style');
		}
    }
}