Bangumi EpPopuVisualizer

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Bangumi EpPopuVisualizer

用颜色标注ep的讨论人气
当前为 2016-06-12 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Bangumi EpPopuVisualizer
// @namespace    http://bgm.tv/user/prevails
// @version      0.1.3
// @description  用颜色标注ep的讨论人气
// @author       "Donuts."
// @match        http://bgm.tv/subject/*
// @match        http://bgm.tv/
// @match        http://bangumi.tv/subject/*
// @match        http://bangumi.tv/
// @match        http://chii.in/subject/*
// @match        http://chii.in/
// @encoding     utf-8
// @require      http://code.jquery.com/jquery-2.2.4.min.js
// @grant        none
// ==/UserScript==

function main() {
    var $uls = $('ul.prg_list');
    $uls.each(function () {
        var $lis = $('li:not(.subtitle)', this);
        addVisualBar($lis);
    });
}

function addVisualBar($lis) {
    var ids = [];
    $lis.each(function () {
        var $a = $(this).find('a');
        var id = $a[0].id.replace("prg_", '');
        ids.push(id);
    });
    var values = ids.map(getEpValue);
    var max = values.reduce(function (a, b) {
        return Math.max(a, b);
    });
    values = values.map(getColor(max));
    $lis.each(function (index) {
        var $li = $(this);
        $li.prepend('<div style="height:3px;width:85%;background:' + values[index] + ';"></div>');
    });
}

function getEpValue(id) {
    var value = $("#subject_prg_content > #prginfo_" + id + " > span > span > small.na").html();
    value = value.substring(2, value.length - 1);
    return parseInt(value);
}

function getColor(max) {
    var rfactor = (255 - 0xff) / max;
    var gfactor = (255 - 0x80) / max;
    var bfactor = (255 - 0x40) / max;
    return function (v) {
        var r = 255 - Math.floor(v * rfactor);
        var g = 255 - Math.floor(v * gfactor);
        var b = 255 - Math.floor(v * bfactor);
        return "rgb(" + r + "," + g + "," + b + ")";
    };
}

main();