Better Medium for Korean

Supply a font setting dialog for Medium

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Better Medium for Korean
// @version      0.3
// @description  Supply a font setting dialog for Medium
// @author       lqez
// @include      https://medium.com/*
// @grant        GM.setValue
// @grant        GM.getValue
// @namespace publy.co
// ==/UserScript==
(function() {
    'use strict';

    var state = {
        fontFamily: 'system',
        fontSize: 21,
        contentWidth: 728,
        lineHeight: 1.58,
        letterSpacing: 0,
        colorScheme: 'light'
    };

    function addGlobalStyle(css) {
        var head, style;
        head = document.getElementsByTagName('head')[0];
        if (!head) { return; }
        style = document.createElement('style');
        style.type = 'text/css';
        style.innerHTML = css;
        head.appendChild(style);
    }

    function apply(key) {
        var i, node, nodes;

        if (key == 'colorScheme') {
            node = document.querySelector("body");
            if (state.colorScheme == 'dark') {
                node.style.filter = 'invert(0.9)';
            } else {
                node.style.filter = '';
            }

            nodes = document.querySelectorAll("body img");

            for (i = 0; i < nodes.length; i++) {
                node = nodes[i];
                if (state.colorScheme == 'dark') {
                    node.style.filter = 'invert(1)';
                } else {
                    node.style.filter = '';
                }
            }

        } else {
            nodes = document.querySelectorAll("article section > div > div");
            for (i = 0; i < nodes.length; i++) {
                node = nodes[i];

                switch(key) {
                    case 'contentWidth':
                        node.style.maxWidth = state.contentWidth + 'px';
                        node.style.width = state.contentWidth + 'px';
                        break;
                }
            }

            nodes = document.querySelectorAll("article section [data-selectable-paragraph]");
            for (i = 0; i < nodes.length; i++) {
                node = nodes[i];

                switch(key) {
                    case 'fontFamily':
                        node.style.fontFamily = state.fontFamily;
                        break;
                    case 'fontSize':
                        node.style.fontSize = state.fontSize + 'px';
                        break;
                    case 'lineHeight':
                        node.style.lineHeight = state.lineHeight;
                        break;
                    case 'letterSpacing':
                        node.style.letterSpacing = state.letterSpacing + 'px';
                        break;
                }
            }
        }
    }

    function set(key, value) {
        switch(key) {
            case 'fontFamily':
                state.fontFamily = value;
                break;
            case 'fontSize':
                state.fontSize = parseInt(state.fontSize) + parseInt(value);
                break;
            case 'contentWidth':
                state.contentWidth = parseInt(state.contentWidth) + parseInt(value);
                break;
            case 'lineHeight':
                state.lineHeight = Math.round((parseFloat(state.lineHeight) + parseFloat(value)) * 10) / 10;
                break;
            case 'letterSpacing':
                state.letterSpacing = Math.round((parseFloat(state.letterSpacing) + parseFloat(value)) * 10) / 10;
                break;
            case 'colorScheme':
                state.colorScheme = value;
                break;
        }
        apply(key);
        savePref(key, state[key]);
    }

    function loadPref(key, value) {
        return GM.getValue(key, value).then((v) => {
            if (v != null && !isNaN(v)) {
                state[key] = v;
                apply(key);
            }
        });
    }

    function savePref(key, value) {
        GM.setValue(key, value);
    }

    addGlobalStyle(`
        @font-face { font-family: 'BareunBatang'; font-style: normal; font-weight: 400; src: url('//cdn.jsdelivr.net/korean-webfonts/1/orgs/othrs/kpa/BareunBatang/BareunBatangOTFM.woff2') format('woff2'), url('//cdn.jsdelivr.net/korean-webfonts/1/orgs/othrs/kpa/BareunBatang/BareunBatangOTFM.woff') format('woff'); } @font-face { font-family: 'BareunBatang'; font-style: normal; font-weight: 700; src: url('//cdn.jsdelivr.net/korean-webfonts/1/orgs/othrs/kpa/BareunBatang/BareunBatangOTFB.woff2') format('woff2'), url('//cdn.jsdelivr.net/korean-webfonts/1/orgs/othrs/kpa/BareunBatang/BareunBatangOTFB.woff') format('woff'); } @font-face { font-family: 'BareunBatang'; font-style: normal; font-weight: 300; src: url('//cdn.jsdelivr.net/korean-webfonts/1/orgs/othrs/kpa/BareunBatang/BareunBatangOTFL.woff2') format('woff2'), url('//cdn.jsdelivr.net/korean-webfonts/1/orgs/othrs/kpa/BareunBatang/BareunBatangOTFL.woff') format('woff'); }
        @font-face { font-family: 'RIDIBatang'; src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/[email protected]/RIDIBatang.woff') format('woff'); font-weight: normal; font-style: normal; }
    `);

    addGlobalStyle(`
        @import url('https://fonts.googleapis.com/css?family=Nanum+Gothic|Nanum+Myeongjo|Noto+Serif+KR&display=swap');
        @import url(//fonts.googleapis.com/earlyaccess/kopubbatang.css);
        .bmk {
          position: fixed;
          right: 0;
          top: 0;
          margin: 8px;
          padding: 8px;
          background: #f1f1f1;
          color: #666;
          border-radius: 50%;
          font-size: 14px;
          cursor: pointer;
          user-select: none;
          z-index: 1000;
        }

        .bmk-row {
          display: flex;
          flex-direction: row;
        }

        .bmk-row + .bmk-row {
            margin-top: 1px;
        }

        .bmk-hidden {
            visibility: hidden;
        }

        .bmk-popup {
            position: fixed;
            right: 48px;
            top: 8px;
            display: flex;
            flex-direction: column;
            background: #ddd;
            border: 1px solid #ddd;
            border-radius: 5px;
            overflow: hidden;
            box-shadow: 0 0.5px 3px 1px rgba(0,0,0,.1);
            z-index: 1001;
        }

        .bmk-button {
            color: #222;
            width: 80px;
            height: 48px;
            font-size: 16px;
            display: flex;
            justify-content: center;
            align-items: center;
            background: white;
            cursor: pointer;
            user-select: none;
            flex-grow:1
        }

        .bmk-button:hover {
            background: #efefef;
        }

        .bmk-button + .bmk-button {
            margin-left: 1px;
        }

        .bmk-line-height {
            display: flex;
            flex-direction: column;
        }
    `);

    document.body.appendChild(new DOMParser().parseFromString(`<div>
        <div class="bmk" id="bmk">Aa</div>
        <div class="bmk-popup bmk-hidden" id="bmk-popup">
            <div class="bmk-row">
                <div class="bmk-button" style="font-family: 'Noto Sans KR', sans-serif" data-key="fontFamily" data-value="">기본</div>
                <div class="bmk-button" style="font-family: 'Noto Serif KR'"
                     data-key="fontFamily" data-value="'Noto Serif', serif">노토세리프</div>
                <div class="bmk-button" style="font-family: 'KoPub Batang'"
                     data-key="fontFamily" data-value="'KoPub Batang', serif">KoPub바탕</div>
            </div>
            <div class="bmk-row">
                <div class="bmk-button" style="font-family: 'RIDIBatang'"
                     data-key="fontFamily" data-value="'RIDIBatang', serif">RIDI바탕</div>
                <div class="bmk-button" style="font-family: 'BareunBatang'"
                     data-key="fontFamily" data-value="'BareunBatang', serif">바른바탕</div>
                <div class="bmk-button" style="font-family: 'Nanum Gothic'"
                     data-key="fontFamily" data-value="'Nanum Gothic', sans-serif">나눔고딕</div>
                <div class="bmk-button" style="font-family: 'Nanum Myeongjo'"
                     data-key="fontFamily" data-value="'Nanum Myeongjo', serif">나눔명조</div>
            </div>
            <div class="bmk-row">
            </div>
            <div class="bmk-row">
                <div class="bmk-button" data-key="fontSize" data-value="+1">&#43;</div>
                <div class="bmk-button" data-key="fontSize" data-value="-1">&#8722;</div>
            </div>
            <div class="bmk-row">
                <div class="bmk-button" data-key="contentWidth" data-value="+40">← →</div>
                <div class="bmk-button" data-key="contentWidth" data-value="-40">→←</div>
            </div>
            <div class="bmk-row">
                <div class="bmk-button" data-key="letterSpacing" data-value="+0.1">A a</div>
                <div class="bmk-button" data-key="letterSpacing" data-value="-0.1">Aa</div>
            </div>
            <div class="bmk-row">
                <div class="bmk-button" data-key="lineHeight" data-value="+0.1">
                    <div class="bmk-line-height" style="line-height: 0.38"><span>—</span><span>—</span><span>—</span></div></div>
                <div class="bmk-button" data-key="lineHeight" data-value="-0.1">
                    <div class="bmk-line-height" style="line-height: 0.25"><span>—</span><span>—</span><span>—</span></div></div>
            </div>
            <div class="bmk-row">
                <div class="bmk-button" data-key="colorScheme" data-value="light">
                    Light ☀️</div>
                <div class="bmk-button" data-key="colorScheme" data-value="dark">
                    Dark 🌙</div>
            </div>
        </div>
    </div>`, 'text/html').getRootNode().body.firstChild);

    document.getElementById("bmk").addEventListener("click", function () {
        var popup = document.getElementById("bmk-popup");
        popup.classList.toggle("bmk-hidden");
    });

    var buttons = document.getElementsByClassName("bmk-button");
    for (var i = 0; i < buttons.length; i++) {
        buttons[i].addEventListener('click', function(event) {
            var elem = event.currentTarget;
            var key = elem.getAttribute("data-key");
            var value = elem.getAttribute("data-value");
            console.log("BMK", key, value);
            set(key, value);
        }, false);
    }

    Object.keys(state).forEach(key => {
        loadPref(key, state[key]);
    });
})();