Filter, Highlight & Delete

List Filter

Customizes various sites based on specified block values.
目前為 2019-06-06 提交的版本，檢視最新版本。
安裝腳本 ?
Wrap lines
// ==UserScript==
// @name         List Filter
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Customizes various sites based on specified block values.
// @author       listfilterEric
// @match        *://news.google.com/*
// @match        *://www.youtube.com/*
// @match        *://www.reddit.com/r/*
// @grant        none
// @require      http://code.jquery.com/jquery-1.12.4.min.js
// @require      https://gf.qytechs.cn/scripts/5392-waitforkeyelements/code/WaitForKeyElements.js?version=115012
// @licence      CC-BY-NC-SA-4.0; https://creativecommons.org/licenses/by-nc-sa/4.0/
// @licence      GPL-3.0-or-later; http://www.gnu.org/licenses/gpl-3.0.txt
// ==/UserScript==
/*jshint esversion: 6 */

/* Last update: 6-05-2019 */

/*
    Search for these markers for locations where you need to add new selectors for new sites.
    markA (select the text block)
    markB (select the block you want to apply css to)
    markC (css of each class)
*/

(function() {
    'use strict';

    const lfShowFilterButton = 0; // set to 1 to show a button to manually run this script.
    const lfDynamicChecking = 1; // set to 1 to run the script automatically when new block elements are detected.
    const lfShowConsoleMsg = 0; // set to 1 to show console messages about how the filter checked each block.

    function consolelog(text) {
        if (lfShowConsoleMsg) {
            console.log(text);
        }
    }
    consolelog("list filter script start.");

    // ==== filter lists ====

    //strong highlight
    var highlight1 = [
        /apple/i,
    ];
    //weak highlight
    var highlight2 = [
        /gamestop/i,
    ];
    //weak lowlight
    var lowlight1 = [
        /goodbye/i,
    ];
    //strong lowlight
    var lowlight2 = [
        /\btv\b/i,
    ];
    //delete block
    var delete1 = [
        /throne|dany|\bgot\b/i,
    ];

    var domainName = window.location.hostname; //href might be less limiting
    var hrefString = window.location.href;

    // ==== function definitions ====

    // checks string against given list of regular expressions.
    function checkReg(string, regList) {
        for (var i = 0; i < regList.length; i++) {
            if (regList[i].test(string)) {
                return true;
            }
        }
        return false;
    }

    var elementCounter = 0;

    // check attributes of a block to choose what class to add to it.
    function checkBlock(index, element) {

        var titleText;

        // markA start
        if (/news\.google\.com/gi.test(domainName)) {
            titleText = jQuery(this).find("div>article>h3").eq(0).text().trim();
        }else if (/www\.youtube\.com/gi.test(domainName)) {
            titleText = jQuery(this).find("span#video-title").text().trim();
        }else if (/www\.reddit\.com/gi.test(domainName)) {
            titleText = jQuery(this).find("span>a>h2").text().trim();
        }
        // markA end

        // class list identifies what was checked in past iterations
        var classList = "";
        if ( jQuery(this).attr("class") ) {
            classList = jQuery(this).attr("class");
            //consolelog(classList);
        }

        if ( titleText && (!classList || !/\blf-/.test(classList)) ) {
        //if ( titleText ) {
            elementCounter++;
            var matchCode = "n1";

            // delete and lowlight lists are checked before highlight lists
            if (checkReg(titleText,delete1)) {
                matchCode = "d1";
                jQuery(this).remove();
            }else if (checkReg(titleText,lowlight2)) {
                matchCode = "l2";
                jQuery(this).addClass("lf-lowlight2");
            }else if (checkReg(titleText,lowlight1)) {
                matchCode = "l1";
                jQuery(this).addClass("lf-lowlight1");
            }else if (checkReg(titleText,highlight1)) {
                matchCode = "h1";
                jQuery(this).addClass("lf-highlight1");
            }else if (checkReg(titleText,highlight2)) {
                matchCode = "h2";
                jQuery(this).addClass("lf-highlight2");
            }else {
                jQuery(this).addClass("lf-checked");
            }

            // prints to console the outcome of what the block matched.
            //if (1) {
            if (/d|l/gi.test(matchCode)) {
                var printMsg = elementCounter;
                printMsg += " "+ matchCode;
                printMsg += ": "+ titleText;
                consolelog(printMsg);
            }
            //console.log(elementCounter +" "+ matchCode +": "+ titleText +"("+ vidLength +")");
        }

    } // end function checkBlock()

    // ==== adds reset button for highlight/lowlight and runs initial execution. ====

    // markB start
    var blockSelector = "article";
    if(/news\.google\.com/gi.test(domainName)) {
        blockSelector = "main>c-wiz>div>div";
        checkBlocks();
    }else if (/www\.youtube\.com/gi.test(domainName)) {
        blockSelector = "ytd-compact-video-renderer";
        checkBlocks();
    }else if (/www\.reddit\.com/gi.test(domainName)) {
        blockSelector = ".scrollerItem>div>div:nth-child(2)";
        checkBlocks();
    }
    // markB end

    function checkBlocks() {
        jQuery(blockSelector).each(checkBlock);
        consolelog("end checkBlocks().");
    }

    jQuery("#lf-reset").click(function() {
        consolelog("highlight/lowlight reset began.");
        elementCounter = 0;
        checkBlocks();
        consolelog("highlight/lowlight reset finished.");
    });

    if (lfDynamicChecking) {
        waitForKeyElements( blockSelector, checkBlocks );
    }else {
        checkBlocks();
    }

    const listFilterCss =
`<style>
    #lf-reset {
        display: block !important;
        background: #177e14;
        padding: 5px;
        border-radius: 5px;
        position: fixed;
        top: 5px;
        right: 5px;
        z-index: 999;
        color: white;
        font-weight: bold;
        cursor: pointer;
    }
</style>`;
    if (lfShowFilterButton) {
        jQuery("body").prepend('<div id="lf-reset" hidden>H/L</div>');
        jQuery(document.body).append(listFilterCss);
    }

    // markC start
    const googleFilterCss =
    `<style>
    main>c-wiz>div>div.lf-highlight1 {
        background: #baffc9;/*green*/
    }
    main>c-wiz>div>div.lf-highlight2 {
        background: #ffffba;/*yellow*/
    }
    main>c-wiz>div>div.lf-lowlight1 {
        background: #ffdfba;/*orange*/
        opacity: .3;
    }
    main>c-wiz>div>div.lf-lowlight2 {
        background: #ffccca;/*red*/
        opacity: .5;
    }
    </style>`;
        const youtubeFilterCss =
    `<style>
    ytd-compact-video-renderer.lf-highlight1 {
        background: #baffc9;/*green*/
    }
    ytd-compact-video-renderer.lf-highlight2 {
        background: #ffffba;/*yellow*/
    }
    ytd-compact-video-renderer.lf-lowlight1 {
        background: #ffdfba;/*orange*/
        opacity: .3;
    }
    ytd-compact-video-renderer.lf-lowlight2 {
        background: #ffccca;/*red*/
        opacity: .5;
    }
    </style>`;
        const redditFilterCss =
    `<style>
    .scrollerItem>div>div:nth-child(2).lf-highlight1 {
        background: #baffc9;/*green*/
    }
    .scrollerItem>div>div:nth-child(2).lf-highlight2 {
        background: #ffffba;/*yellow*/
    }
    .scrollerItem>div>div:nth-child(2).lf-lowlight1 {
        background: #ffdfba;/*orange*/
        opacity: .3;
    }
    .scrollerItem>div>div:nth-child(2).lf-lowlight2 {
        background: #ffccca;/*red*/
        opacity: .5;
    }
    </style>`;
    
    if(/news\.google\.com/gi.test(domainName)) {
        jQuery(document.body).append(googleFilterCss);
    }else if (/www\.youtube\.com/gi.test(domainName)) {
        jQuery(document.body).append(youtubeFilterCss);
    }else if (/www\.reddit\.com/gi.test(domainName)) {
        jQuery(document.body).append(redditFilterCss);
    }
    // markC end

    consolelog("list filter script finished.");
})();
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