NovelAI Mod

Extention for NovelAI Image Generator. Fast Suggestion, Chant, Save in JPEG, Get aspect ratio.

Ajankohdalta 12.1.2024. Katso uusin versio.

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 or Violentmonkey 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         NovelAI Mod
// @namespace    https://www6.notion.site/dc99953d5f04405c893fba95dace0722
// @version      13
// @description  Extention for NovelAI Image Generator. Fast Suggestion, Chant, Save in JPEG, Get aspect ratio.
// @author       SenY
// @match        https://novelai.net/image
// @icon         https://www.google.com/s2/favicons?sz=64&domain=novelai.net
// @grant        none
// @license      MIT
// ==/UserScript==

(function () {
    const gcd = function(a, b){
        if(b == 0) return a;
        return gcd(b, a % b);
    }
    const getAspect = function(whArray){
        return whArray.map(x => x / gcd(whArray[0], whArray[1]));
    }
    const aspectList = function(wa, ha, maxpixel) {
        if( !maxpixel ){
            maxpixel = 1024 * 1024;
        }
        let aspect = wa / ha;
        let limit = 16384;
        let steps = 64;
        let ws = []
        for(let i=steps;i<=limit;i+=steps){
            ws.push(i);
        }
        let hs = ws.slice(0, ws.length+1);
        let results = [];
        ws.forEach(w => {
            hs.forEach(h => {
                if(w / h == aspect && w * h <= maxpixel){
                    results.push([w, h]);
                }
            })
        });
        return results;
    }

    let suggested_at = new Date();
    const colors = {
        "-1": ["red", "maroon"],
        "0": ["lightblue", "dodgerblue"],
        "1": ["gold", "goldenrod"],
        "3": ["violet", "darkorchid"],
        "4": ["lightgreen", "darkgreen"],
        "5": ["tomato", "darksalmon"],
        "6": ["red", "maroon"],
        "7": ["whitesmoke", "black"],
        "8": ["seagreen", "darkseagreen"]
    }
    const getChantURL = function (force) {
        if (force === true) {
            localStorage.removeItem("chantURL");
        }
        let chantURL = localStorage.getItem("chantURL") || prompt("Input your chants json url.\nThe URL must be a Cors-enabled server (e.g., gist.github.com).", "https://gist.githubusercontent.com/vkff5833/989808aadebf8648831955cdf2a7b3e3/raw/yuuri.json");
        if (chantURL) {
            localStorage.setItem("chantURL", chantURL);
        }
        return chantURL;
    }
    let chantURL = getChantURL(null);
    let ui = document.createElement("div");
    ui.style.padding = "0.5rem";


    let seedButton;
    const saveJpeg = function () {
        let seed = Array.from(seedButton.querySelectorAll("span")).map(x => x.textContent).find(x => x.search(/^[0-9]*$/) == 0);
        let filename = seed + ".jpg";
        let imgs = Array.from(document.querySelectorAll('img[src]')).filter(x => x.offsetParent);
        let url = imgs.find(x => x.height == Math.max.apply(null, imgs.map(x => x.height))).getAttribute("src");
        if ( !url ){
            url = document.querySelector('img[src]').getAttribute("src");
        }
        let blob = fetch(url).then(r => r.blob()).then(blob => {
            let fileReader = new FileReader();
            fileReader.onload = function () {
                let dataURI = this.result;
                let canvas = document.createElement("canvas");
                let context = canvas.getContext("2d");
                let image = new Image();
                image.src = dataURI;
                image.onload = function () {
                    canvas.width = image.width;
                    canvas.height = image.height;
                    context.drawImage(image, 0, 0);
                    let JPEG = canvas.toDataURL("image/jpeg", document.getElementById("jpegQuality").value - 0);
                    let link = document.createElement('a');
                    link.href = JPEG;
                    link.download = filename;
                    link.click();
                };
            }
            fileReader.readAsDataURL(blob);
        });
    }
    let jpegButton = document.createElement("div");
    let jpegQuality = document.createElement("div");
    jpegButton.textContent = "JPEG";
    jpegButton.addEventListener("click", () => {
        saveJpeg();
    });
    jpegQuality.textContent = "";
    let input = document.createElement("input");
    input.value = 0.85;
    input.setAttribute("id", "jpegQuality");
    input.setAttribute("type", "number");
    input.setAttribute("step", "0.01");
    input.setAttribute("max", "1");
    input.setAttribute("min", "0");
    input.style.maxWidth = "3rem";
    jpegQuality.appendChild(input);

    const changePixel = function(w, h) {
        let wh = [w, h];
        let i = 0;
        document.querySelectorAll('input[type="number"][step="64"]').forEach(x => {
            x.value = wh[i];
            x._valueTracker = '';
            x.dispatchEvent(new Event('input', { bubbles: true }));
            i++;
        });
    }

    const createUI = function(){
        document.querySelectorAll("textarea[placeholder]").forEach(textarea => {
            if( textarea.offsetParent ){
                textarea.parentElement.appendChild(ui);
            }
        });
        seedButton = Array.from(document.querySelectorAll('span[style]')).find(x => x.textContent.trim().search(/^[0-9]*(seed|シード)/i) == 0);
        if(seedButton){
            seedButton = seedButton.closest("button");
            seedButton.classList.forEach(x => {
                jpegButton.classList.add(x);
                jpegQuality.classList.add(x);
            });
            seedButton.parentNode.insertBefore(jpegButton, seedButton);
            seedButton.parentNode.insertBefore(jpegQuality, seedButton);
        }
        let widthInput = document.querySelector('input[type="number"][step="64"]');
        if ( widthInput ){
            let heightInput = document.querySelectorAll('input[type="number"][step="64"]')[1];
            let displayAspect = document.querySelector("#displayAspect");
            if( !displayAspect ){
                displayAspect = document.createElement("div");
                displayAspect.setAttribute("id", "displayAspect");
                let container = document.createElement("div");
                container.style.maxWidth = "130px";
                container.style.display = "flex";
                let widthAspect = document.createElement("input");
                let heightAspect = document.createElement("input");
                let largeCheck = document.createElement("input");
                let submitButton = document.createElement("input");
                widthAspect.setAttribute("type", "number");
                heightAspect.setAttribute("type", "number");
                largeCheck.setAttribute("type", "checkbox");
                largeCheck.setAttribute("title", "Check to large size.");
                submitButton.setAttribute("type", "submit");
                submitButton.value = "Aspect => Pixel";
                widthInput.classList.forEach(x => {
                    widthAspect.classList.add(x);
                    heightAspect.classList.add(x);
                });
                container.appendChild( widthAspect );
                container.appendChild( heightAspect );
                container.appendChild( largeCheck );
                displayAspect.appendChild(container);
                displayAspect.appendChild(submitButton);
                widthInput.parentNode.appendChild( displayAspect );
                const changePixelByAspect = function(){
                    let wa = widthAspect.value;
                    let ha = heightAspect.value;
                    let maxpixel = 1024 * 1024;
                    if( largeCheck.checked ){
                        maxpixel = 1664 * 1664;
                    }
                    let as = aspectList(wa, ha, maxpixel);
                    if(as.length){
                        let wh = as[as.length-1];
                        changePixel(wh[0], wh[1]);
                    }
                }
                submitButton.addEventListener("click", function(){
                    changePixelByAspect();
                });
            }else{
                let widthAspect = displayAspect.querySelectorAll("input")[0];
                let heightAspect = displayAspect.querySelectorAll("input")[1];
                let Aspect = getAspect(Array.from(document.querySelectorAll('input[type="number"][step="64"]')).map(x => x.value));
                console.log(widthAspect, heightAspect);
                widthAspect.value = Aspect[0];
                heightAspect.value = Aspect[1];
            }
        }
    }


    const observer = new MutationObserver((mutations) => {
        mutations.forEach((mutation) => {
            if (mutation.type === 'childList') {
                if (mutation.addedNodes.length > 0) {
                    mutation.addedNodes.forEach((node) => {
                        if (node.tagName == "SPAN"){
                            createUI();
                        }
                    })
                }
            }
        });
    });

    // 監視を開始する
    observer.observe(document.body, {
        childList: true, // 直接の子ノードの変更を監視
        subtree: true, // すべての子孫ノードの変更も監視
    });

    let allTags = [];
    fetch("https://gist.githubusercontent.com/vkff5833/275ccf8fa51c2c4ba767e2fb9c653f9a/raw/danbooru.json", {
        method: "GET",
    }).then((response) => response.json())
        .then((data) => {
            allTags = data;
            fetch("https://gist.githubusercontent.com/vkff5833/275ccf8fa51c2c4ba767e2fb9c653f9a/raw/danbooru_wiki.slim.json", {
                method: "GET",
            }).then((response) => response.json())
                .then((wikiPages) => {
                    allTags = allTags.map(x => {
                        let wikiPage = wikiPages.find(y => y.name == x.name);
                        if (wikiPage) {
                            x.terms = x.terms.concat(wikiPage.otherNames);
                        }
                        return x;
                    });
                });
        });
    let chants = [];

    const getTargetTag = function () {
        let textarea = document.querySelector("textarea[placeholder]");
        if (textarea) {
            let oldTags = textarea.value.split(",").map(x => x.trim());
            let beforeTags = textarea.value.slice(0, textarea.selectionEnd).split(",").map(x => x.trim());
            let targetTag = beforeTags[beforeTags.length - 2];
            targetTag = oldTags[oldTags.indexOf(targetTag) + 1];
            return targetTag.trim();
        } else {
            return null;
        }
    };
    const Crease = function (value) {
        const getTagPower = function (tag) {
            let tagPower = 0;
            tagPower += tag.split("").filter(x => x == "{").length;
            tagPower -= tag.split("").filter(x => x == "[").length;
            return tagPower;
        }
        let textarea = document.querySelector("textarea[placeholder]");
        let selectionEnd = textarea.selectionEnd;
        let oldTags = textarea.value.split(",").map(x => x.trim());
        let targetTag = getTargetTag();
        let tags = [];
        if (targetTag) {
            oldTags.forEach(tag => {
                if (tag == targetTag) {
                    let tagPower = getTagPower(targetTag) + value;
                    tag = tag.replace(/[\{\}\[\]]/g, "", tag);
                    for (let i = 0; i < Math.abs(tagPower); i++) {
                        if (tagPower > 0) {
                            tag = '{' + tag + '}';
                        }
                        if (tagPower < 0) {
                            tag = '[' + tag + ']';
                        }
                    }
                }
                tags.push(tag);
            });
            tags = tags.filter(x => x);
            textarea.textContent = tags.join(", ").replace(/^, /g, "");
            textarea.value = tags.join(", ").replace(/^, /g, "") + ", ";
            textarea._valueTracker = '';
            textarea.dispatchEvent(new Event('input', { bubbles: true }));
            textarea.focus();
            textarea.selectionEnd = selectionEnd;
        }
    }

    const Append = function (key, value) {
        let targetTag = getTargetTag();
        let text;
        let newTags;
        let textarea = document.querySelector("textarea[placeholder]");
        let selectionEnd = textarea.selectionEnd;
        let oldTags = textarea.value.split(",").map(x => x.trim());
        if (key) {
            let chant = chants.find(x => x.name == key.trim());
            if (chant) {
                newTags = chant.content.split(",").map(x => x.trim());
            }
        }

        if (value) {
            newTags = [value.trim()];
        }
        if (newTags.length) {
            //let tags = oldTags.concat(newTags).filter(x => x);
            let tags = [];
            oldTags.forEach(tag => {
                if (tag == targetTag) {
                    if (key) {
                        tags.push(tag);
                    }
                    newTags.forEach(newTag => {
                        tags.push(newTag);
                    });
                } else {
                    tags.push(tag);
                }
            });
            if (!targetTag) {
                tags = tags.concat(newTags);
            }
            tags = Array.from(new Set(tags.filter(x => x)));
            textarea.textContent = tags.join(", ").replace(/^, /g, "");
            textarea.value = tags.join(", ").replace(/^, /g, "") + ", ";
            // Special Thanks to https://fate.5ch.net/test/read.cgi/liveuranus/1702763225/730
            textarea._valueTracker = '';
            textarea.dispatchEvent(new Event('input', { bubbles: true }));
            textarea.focus();
            textarea.selectionEnd = selectionEnd;
        }
    }
    const Suggest = function () {
        let textarea = document.querySelector("textarea[placeholder]");
        if (textarea) {
            let tags = textarea.value.split(",").map(x => x.trim());
            if (tags.length) {
                let targetTag = getTargetTag().replace(/[\\^$.*+?()[\]{}|]/g, '\\$&');
                document.getElementById("suggestionField").textContent = "";
                let suggestions = [];
                if (targetTag) {
                    suggestions = allTags.filter(x => x.name.search(targetTag.replace(/_/g, " ").replace(/[\{\}\[\]\\]/g, "")) >= 0).slice(0, 10);
                    suggestions = suggestions.concat(allTags.filter(x => {
                        return x.terms.map(y => y.search(targetTag.replace(/_/g, " ").replace(/[\{\}\[\]\\]/g, "")) >= 0).includes(true);
                    }).slice(0, 20));
                }
                let done = new Set();
                suggestions.forEach(tag => {
                    if (!done.has(tag.name)) {
                        let button = document.createElement("button");
                        let count = tag.coumt;
                        if (count > 1000) {
                            count /= 1000;
                            count = Math.round(count * 10) / 10;
                            count += "k";
                        }
                        button.textContent = tag.name + " (" + count + ")";
                        button.style.color = colors[tag.category][1];
                        button.setAttribute("title", tag.terms.map(x => x.trim()).filter(x => x).join(", "));
                        button.addEventListener("click", function () {
                            Append(null, tag.name);
                        });
                        document.getElementById("suggestionField").appendChild(button);
                        if (textarea.value.split(",").map(y => y.trim().replace(/_/g, " ").replace(/[\{\}\[\]\\]/g, "")).includes(tag.name.replace(/_/g, " "))) {
                            button.style.opacity = 0.5;
                        }
                    }
                    done.add(tag.name);
                });
            }
        }
    }

    const Build = function () {
        ui.textContent = "";
        let hr = document.createElement("hr");
        hr.style.color = "grey";
        hr.style.borderWidth = "2px";
        let optionField = document.createElement("div");
        let chantsField = document.createElement("div");
        let suggestionField = document.createElement("div");
        suggestionField.setAttribute("id", "suggestionField");
        ui.appendChild(optionField);
        ui.appendChild(hr.cloneNode());
        ui.appendChild(chantsField);
        ui.appendChild(hr.cloneNode());
        ui.appendChild(suggestionField);

        let resetButton = document.createElement("button");
        resetButton.textContent = "Reset Chants URL";
        resetButton.style.color = "red";
        resetButton.addEventListener("click", function () {
            chantURL = getChantURL(true);
            Build();
        });
        optionField.appendChild(resetButton);
        let clearButton = document.createElement("button");
        clearButton.textContent = "Clear Suggestion";
        clearButton.style.color = "red";
        clearButton.addEventListener("click", function () {
            document.getElementById("suggestionField").textContent = "";
        });
        optionField.appendChild(clearButton);


        fetch(chantURL, {
            method: "GET",
        }).then((response) => response.json())
            .then((data) => {
                chants = data;
                chants.forEach(chant => {
                    let button = document.createElement("button");
                    button.textContent = chant.name;
                    button.style.color = colors[chant.color][1];
                    button.addEventListener("click", function () {
                        Append(chant.name, null);
                    });
                    chantsField.appendChild(button);
                });
            });
    }
    let init = false;
    document.addEventListener("DOMContentLoaded", function () {
        if (init === false) {
            Build();
            init = true;
        }
    });
    document.addEventListener("keydown", function (e) {
        if (e.ctrlKey == true && e.code == "ArrowUp") {
            e.preventDefault();
            Crease(1);
        }
        if (e.ctrlKey == true && e.code == "ArrowDown") {
            e.preventDefault();
            Crease(-1);
        }
    });
    const SUGGESTION_LIMIT = 300;
    document.addEventListener("keyup", function (e) {
        let typed = new Date();
        if ( typed - suggested_at > SUGGESTION_LIMIT && e.target.tagName == "TEXTAREA") {
            Suggest();
            suggested_at = typed;
        }
    });
    document.addEventListener("click", function (e) {
        if (e.target.tagName == "TEXTAREA") {
            Suggest();
        }
    });
})();