Danbooru Tag Autocompletion For Fooocus

Tag autocompletion for fooocus

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         Danbooru Tag Autocompletion For Fooocus
// @namespace    http://tampermonkey.net/
// @version      2025-06-05
// @description  Tag autocompletion for fooocus
// @author       CTRN43062
// @match        https://*.gradio.live
// @match        http://127.0.0.1:7865
// @icon         https://www.google.com/s2/favicons?sz=64&domain=0.1
// @grant        GM_addStyle
// @license MIT
// ==/UserScript==

GM_addStyle(`
  .autocomplete-list {
    position: absolute;
    display: flex;
    background: #eeeeed;
    border-radius: 5px;
    z-index: 1123;
    max-height: 12rem;
    overflow: auto;
    bottom: 105%;
    left: 5px;
    width: 300px !important;
    min-width: fit-content;
  }

  .autocomplete-list div {
    line-height: 1.5rem;
    padding: 4px 10px;
    display: flex;
    justify-content: space-between;
  }

  .autocomplete-list div:nth-child(2n) {
    background: #ffffff;
  }

  .autocomplete-list div.active {
    background: #e5e7eb;
  }
 `);

/**
 * 从网络或者本地加载 tags 数据并返回
 *
 */

const CONFIG = {
    // [[textarea, parent]]
    selectors: [["#positive_prompt > label > textarea", "#component-11"]],
    first_n: 5,
};

class Tags {
    static TAG_FILES = {
        danbooru: {
            url: "https://raw.githubusercontent.com/DominikDoom/a1111-sd-webui-tagcomplete/refs/heads/main/tags/danbooru.csv",
            key: "danbooru",
        },
    };

    constructor() {
        this.save = true;

        Object.keys(Tags.TAG_FILES).forEach((key) => {
            this[`load${key.toUpperCase()}Tags`] = async () =>
            await this.loadTagsFromLocal(Tags.TAG_FILES[key].key);
        });
    }

    _csvTextToTagsItem(text) {
        const keys = ["name", "type", "count", "alias"];
        const result = [];

        for (const line of text.split("\n")) {
            const item = line.split(",");
            if (item.length < 3) {
                console.warn("Unknown csv format:", line);
                continue;
            }

            const obj = {};

            item.forEach((val, idx) => {
                obj[keys[idx]] = val;
            });

            result.push(obj);
        }

        return result;
    }

    saveTagsToLocal(key, tags) {
        localStorage.setItem(key, tags);
    }

    async loadTagsFromInternet(key) {
        const resp = await fetch(Tags.TAG_FILES[key].url);
        const text = await resp.text();
        return text;
    }

    async loadTagsFromLocal(key, update = false) {
        // 1girl,0,5882641,"1girls,sole_female"
        // name,type,count,alias
        let rawTags = localStorage.getItem(key);
        console.info("loading tags");
        if (!rawTags || update) {
            console.info("loading tags from web");
            rawTags = await this.loadTagsFromInternet(key);
            if (this.save) {
                this.saveTagsToLocal(key, rawTags);
            }
        }

        return this._csvTextToTagsItem(rawTags);
    }
}

class AutoCompleteList {
    constructor(doneCallback) {
        this.isShow = false;
        this.mounted = false;
        this.items = [];
        this.itemsEl = [];
        this.doneCallback = doneCallback;

        this.activeIndex = 0;
    }

    switchActive(idx) {
        this.itemsEl.forEach((item) => item.classList.remove("active"));
        this.itemsEl[idx].classList.add("active");
        // console.log(this.items[idx].name);
    }

    reset() {
        this.items = [];
        this.itemsEl = [];
        this.activeIndex = 0;
    }

    autocompleteDone() {
        if (typeof this.doneCallback !== "function") {
            throw Error("done callback must be a function");
        }

        this.doneCallback(this.items[this.activeIndex]);
        this.hide();
    }

    _initEvent() {
        const handlers = {
            ArrowDown: () => {
                if (this.activeIndex < this.items.length - 1) {
                    this.activeIndex++;
                    this.switchActive(this.activeIndex);
                }
            },
            ArrowUp: () => {
                if (this.activeIndex > 0) {
                    this.activeIndex--;
                    this.switchActive(this.activeIndex);
                }
            },
            Enter: () => {
                this.autocompleteDone();
            },
            Tab: () => {
                this.autocompleteDone();
            },
        };

        addEventListener("keydown", (e) => {
            const { key } = e;

            if (!this.isShow || !handlers[key]) {
                return;
            }

            e.preventDefault();
            e.stopPropagation();

            handlers[key]();
        });
    }

    mount(el) {
        // const parent = this.textarea.parentElement;
        // if (!parent) {
        //   throw Error("无法挂载提示词列表");
        // }
        const div = document.createElement("div");
        el.appendChild(div);
        div.classList.add("autocomplete-list");

        this.el = div;
        this.mounted = true;

        this.el.addEventListener("click", (evt) => {
            // 子元素点击
            if (evt.target != el && el.contains(evt.target)) {
                const idx = this.itemsEl.findIndex((item) => item.contains(evt.target));
                if (idx > 0) {
                    this.activeIndex = idx;
                    this.autocompleteDone();
                }
            }
        });

        this._initEvent();

        return div;
    }

    _createItem(item) {
        const { name, type, count, alias } = item;
        const div = document.createElement("div");
        const typeColor = {
            0: "#337ab7",
            1: "#A00",
            // 2: "darkorchid",
            3: "#A0A",
            4: "#0A0",
            5: "#F80",
        };

        div.style.color = `${typeColor[type] || "black"}`;
        div.innerHTML = `<span>${name}</span><span>${count}</span>`;

        return div;
    }

    appendItems(items) {
        this.el.innerHTML = ``;
        this.reset();
        this.items = items;

        const frg = document.createDocumentFragment();

        for (const item of items) {
            const itemEl = this._createItem(item);
            this.itemsEl.push(itemEl);
            frg.appendChild(itemEl);
        }

        this.el.appendChild(frg);
        this.switchActive(0);
    }

    hide() {
        if (this.isShow) {
            this.isShow = false;
            this.el.style.display = "none";
            this.reset();
        }
    }

    show() {
        if (!this.isShow) {
            this.isShow = true;
            this.el.style.display = "flex";
            this.el.style.flexFlow = "column";
        }
    }
}

class AutoComplete {
    constructor(textarea, parentEl, first_n) {
        this.textarea = textarea;
        this.FIRST_N = first_n;

        this.prevPrompt = this.textarea.value;
        this.userInputLength = -1;

        this.whiteList = ["-", "_", "(", ")", ".", "$"];

        this.autocompleteList = new AutoCompleteList((item) =>
                                                     this.handleCompleteDone(item)
                                                    );

        this.autocompleteList.mount(parentEl);
        this._initEvent();
    }

    _diffPrompt(prev, cur) {
        prev = prev
            .split(/[,\n]/)
            .map((p) => p.trim())
            .filter((p) => p);
        cur = cur
            .split(/[,\n]/)
            .map((p) => p.trim())
            .filter((p) => p);
        const count = {};

        for (const t of prev) {
            count[t] = count[t] == undefined ? 1 : count[t] + 1;
        }

        const result = [];
        for (const t of cur) {
            count[t] = count[t] == undefined ? -1 : count[t] - 1;
            if (count[t] < 0) {
                result.push(t.trim());
            }
        }

        return result;
    }

    handleCompleteDone(item) {
        item = { ...item };
        item.name = item.name.replace(/([\(\)\[\]])/g, "\\$1").replace(/_/g, " ");

        const { value, selectionStart, selectionEnd } = this.textarea;
        const start = selectionStart - this.userInputLength;
        const before = value.substring(0, start),
              after = value.substring(selectionEnd);
        const p = start + item.name.length + 2;
        this.textarea.value = before + item.name + ", " + after;
        this.textarea.setSelectionRange(p, p);

        setTimeout(() => {
            this.textarea.dispatchEvent(new Event('input'))
            this.textarea.dispatchEvent(new Event('change'))
            this.textarea.dispatchEvent(new Event('blur'))
        }, 0)

        this.hideAutoComplete();
    }

    hideAutoComplete() {
        this.resetInputState();
        this.autocompleteList.hide();
    }

    resetInputState() {
        this.userInputLength = -1;
        this.prevPrompt = this.textarea.value;
    }

    getPopListPosition() {
        return { left: 20 };
        const tmp_div = document.createElement("div");
        const text = this.textarea.value;
        tmp_div.textContent = text.substring(0, this.textarea.selectionStart);
        const tmp_span = document.createElement("span");
        tmp_span.textContent = ".";
        let { top, left } = this.textarea.getBoundingClientRect();

        Object.assign(tmp_div.style, {
            position: "absolute",
            left: `${left}px`,
            top: `${top}px`,
            visibility: "hidden",
            "word-break": "break-all",
            "white-space": "pre",
        });

        tmp_div.appendChild(tmp_span);
        this.textarea.parentElement.style.position = "relative";
        this.textarea.parentElement.appendChild(tmp_div);
        left = tmp_span.offsetLeft;
        tmp_div.remove();
        // tmp_div.classList.add("tmp1");

        return { left };
    }

    async _initEvent() {
        this.textarea.addEventListener("click", (e) => {
            e.stopPropagation();
            this.hideAutoComplete();
        });

        // this.textarea.addEventListener("blur", () => {
        //   this.hideAutoComplete();
        // });

        // 排除 metadata tag
        this.allTags = (await new Tags().loadDANBOORUTags()).filter(tag => tag.type != 5);

        this.textarea.addEventListener("input", (e) => {
            const diff = this._diffPrompt(this.prevPrompt, this.textarea.value);

            if (diff.length != 1) {
                return this.hideAutoComplete();
            }

            const text = diff[0].toLowerCase();

            this.autocompleteList.show();
            const results = this.allTags.filter((item) => item.name.includes(text));

            this.userInputLength = diff[0].length;

            if (!results.length) {
                return this.hideAutoComplete();
            }

            // 简单的前缀匹配优先排序
            if (results.length <= 500) {
                results.sort((a, b) => {
                    if (a.name.startsWith(text)) {
                        return a.count;
                    } else if (b.name.startsWith(text)) {
                        return b.count;
                    }

                    return 0;
                });
            }

            const { left } = this.getPopListPosition();

            if (left) {
                this.autocompleteList.el.style.left = `${left}px`;
            }
            const slicedResult = results.slice(0, this.FIRST_N)

            // 匹配到了完整的输入,隐藏
            if(slicedResult.length === 1 && slicedResult.find(item => item.name === diff[0])) {
                 return this.hideAutoComplete()
            }

            this.autocompleteList.appendItems(slicedResult);
        });

        // this.textarea.addEventListener("keyup", (e) => {
        //   const key = e.key;

        //   if (key.length > 1) {
        //     return;
        //   }

        //   // 非 数字、字母,- _ 的跳过
        //   // if (!/\w/.test(key) && !this.whiteList.includes(key)) {
        //   //   this.hideAutoComplete();
        //   // }
        // });
    }
}

async function waitingForEl(selector) {
    function delay(ms) {
        return new Promise((resolve) => {
            setTimeout(() => resolve(), ms);
        });
    }

    let MAX_WATING_MS = 5000 * 5;

    while (MAX_WATING_MS >= 0) {
        if (document.querySelector(selector)) {
            break;
        }
        await delay(50);
        MAX_WATING_MS -= 50;
    }
}

(function () {
    // console.log(document.title)
    // if(!document.title.startsWith('Fooocus')) {
    //    return
    // }

    "use strict";
    for (const [textarea, parent] of CONFIG.selectors) {
        console.log(textarea, parent);
        waitingForEl(textarea).then(() => {
            new AutoComplete(
                document.querySelector(textarea),
                document.querySelector(parent),
                CONFIG.first_n
            );
        });
    }
})();