Anilist: Activity-Feed Filter

Control the content displayed in your activity feeds

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         Anilist: Activity-Feed Filter
// @namespace    https://github.com/SeyTi01/
// @version      1.8.5
// @description  Control the content displayed in your activity feeds
// @author       SeyTi01
// @match        https://anilist.co/*
// @grant        none
// @license      MIT
// ==/UserScript==

const config = {
    remove: {
        images: false, // Remove activities with images
        gifs: false, // Remove activities with gifs
        videos: false, // Remove activities with videos
        text: false, // Remove activities with only text
        uncommented: false, // Remove activities without comments
        unliked: false, // Remove activities without likes
        containsStrings: [], // Remove activities containing user-defined strings
    },
    options: {
        targetLoadCount: 2, // Minimum number of activities to display per "Load More" button click
        caseSensitive: false, // Use case-sensitive matching for string-based removal
        reverseConditions: false, // Display only posts that meet the specified removal conditions
        linkedConditions: [], // Groups of conditions to be evaluated together
    },
    runOn: {
        home: true, // Run the script on the home feed
        social: true, // Run the script on the 'Recent Activity' of anime/manga entries
        profile: false, // Run the script on user profile feeds
        guestHome: false, // Run the script on the home feed for non-user visitors
    },
};

class MainApp {
    constructor(activityHandler, uiHandler, config) {
        this.ac = activityHandler;
        this.ui = uiHandler;
        this.config = config;
        this.URLS = {
            home: 'https://anilist.co/home',
            social: 'https://anilist.co/*/social',
            profile: 'https://anilist.co/user/*/',
            guestHome: 'https://anilist.co/social',
        };
    }

    initializeObserver() {
        this.observer = new MutationObserver(this._observeMutations.bind(this));
        this.observer.observe(document.body, { childList: true, subtree: true });
    }

    _observeMutations(mutations) {
        if (this._isUrlAllowed()) {
            mutations.forEach(mutation => mutation.addedNodes.forEach(node => this._handleAddedNode(node)));
            this._processLoadOrReset();
        }
    }

    _handleAddedNode(node) {
        if (!(node instanceof HTMLElement)) {
            return;
        }

        if (node.matches(SELECTORS.DIV.ACTIVITY)) {
            this.ac.processActivityNode(node);
        } else if (node.matches(SELECTORS.DIV.BUTTON)) {
            this.ui.bindLoadMoreButton(node);
        } else if (node.matches(SELECTORS.DIV.MARKDOWN)) {
            const entry = node.closest(SELECTORS.DIV.ACTIVITY);
            if (entry) this.ac.processActivityNode(entry);
        }
    }

    _processLoadOrReset() {
        if (this.ac.currentLoadCount < this.config.options.targetLoadCount && this.ui.userPressed) {
            this.ui.triggerLoadMore();
        } else {
            this.ac._resetLoadCount();
            this.ui.resetUIState();
        }
    }

    _isUrlAllowed() {
        const allowedPatterns = Object.keys(this.URLS).filter(pattern => this.config.runOn[pattern]);

        return allowedPatterns.some(pattern => {
            const regex = new RegExp(this.URLS[pattern].replace('*', '.*'));
            return regex.test(window.location.href);
        });
    }
}

class ActivityHandler {
    constructor(config) {
        this.currentLoadCount = 0;
        this.config = config;
        this.LINKED = { TRUE: 1, FALSE: 0, NONE: -1 };

        const wrap = method => (node, reverse) => {
            const res = method.call(this, node);
            return reverse ? !res : res;
        };

        const handlers = {
            uncommented: this._evaluateUncommentedRemoval,
            unliked: this._evaluateUnlikedRemoval,
            text: this._evaluateTextRemoval,
            images: this._evaluateImageRemoval,
            gifs: this._evaluateGifRemoval,
            videos: this._evaluateVideoRemoval,
            containsStrings: this._evaluateStringRemoval
        };

        this.CONDITIONS_MAP = new Map(
            Object.entries(handlers).map(
                ([name, method]) => [name, wrap(method)]
            )
        );
    }

    processActivityNode(node) {
        const { options: { reverseConditions, linkedConditions } } = this.config;
        this.linkedConditionsFlat = linkedConditions.flat();

        const linkedResult = this._evaluateLinkedConditions(node);
        const shouldRemove = reverseConditions
            ? this._evaluateReverseConditions(node, linkedResult)
            : this._evaluateNormalConditions(node, linkedResult);

        shouldRemove ? node.remove() : this.currentLoadCount++;
    }

    _evaluateLinkedConditions(node) {
        const { options: { linkedConditions } } = this.config;

        if (this.linkedConditionsFlat.length === 0) {
            return this.LINKED.NONE;
        }

        const lists = this._extractLinkedConditions(linkedConditions);
        const results = lists.map(list => this._evaluateConditionList(node, list));
        const hasTrue = results.some(Boolean);
        const hasFalse = results.some(r => !r);

        return hasTrue && (!this.config.options.reverseConditions || !hasFalse)
            ? this.LINKED.TRUE
            : this.LINKED.FALSE;
    }

    _evaluateReverseConditions(node, linkedResult) {
        const { options: { reverseConditions } } = this.config;

        const results = this._getActiveConditionFunctions().map(fn => fn(node, reverseConditions));

        return linkedResult !== this.LINKED.FALSE
            && !results.includes(false)
            && (linkedResult === this.LINKED.TRUE || results.includes(true));
    }

    _evaluateNormalConditions(node, linkedResult) {
        const { options: { reverseConditions } } = this.config;

        const anyMatch = this._getActiveConditionFunctions().some(fn => fn(node, reverseConditions));

        return linkedResult === this.LINKED.TRUE || anyMatch;
    }

    _getActiveConditionFunctions() {
        const { remove } = this.config;

        return [...this.CONDITIONS_MAP]
            .filter(([name]) => {
                if (this.linkedConditionsFlat.includes(name)) return false;
                const cfg = remove[name];
                return cfg === true || (Array.isArray(cfg) && cfg.flat().length > 0);
            })
            .map(([, fn]) => fn);
    }

    _evaluateConditionList(node, list) {
        const { options: { reverseConditions } } = this.config;

        return reverseConditions
            ? list.some(cond => this.CONDITIONS_MAP.get(cond)(node, reverseConditions))
            : list.every(cond => this.CONDITIONS_MAP.get(cond)(node, reverseConditions));
    }

    _extractLinkedConditions(linkedConditions) {
        const isNested = linkedConditions.some(Array.isArray);

        return isNested
            ? linkedConditions.map(c => Array.isArray(c) ? c : [c])
            : [linkedConditions];
    }

    _evaluateStringRemoval(node) {
        const { remove: { containsStrings }, options: { caseSensitive } } = this.config;

        const matches = substr => {
            const text = node.textContent;

            return caseSensitive
                ? text.includes(substr)
                : text.toLowerCase().includes(substr.toLowerCase());
        };

        return containsStrings.some(group =>
            Array.isArray(group)
                ? group.every(matches)
                : matches(group)
        );
    }

    _evaluateTextRemoval(node) {
        const hasTextClass =
            node.classList.contains(SELECTORS.ACTIVITY.TEXT) || node.classList.contains(SELECTORS.ACTIVITY.MESSAGE);

        return hasTextClass && !(
            this._evaluateImageRemoval(node) ||
            this._evaluateGifRemoval(node) ||
            this._evaluateVideoRemoval(node)
        );
    }

    _evaluateVideoRemoval(node) {
        return node.querySelector(SELECTORS.CLASS.VIDEO) || node.querySelector(SELECTORS.SPAN.YOUTUBE);
    }

    _evaluateImageRemoval(node) {
        const img = node.querySelector(SELECTORS.CLASS.IMAGE);

        return img && !img.src.includes('.gif');
    }

    _evaluateGifRemoval(node) {
        const img = node.querySelector(SELECTORS.CLASS.IMAGE);

        return img && img.src.includes('.gif');
    }

    _evaluateUncommentedRemoval(node) {
        const replies = node.querySelector(SELECTORS.DIV.REPLIES);

        return !replies || !replies.querySelector(SELECTORS.SPAN.COUNT);
    }

    _evaluateUnlikedRemoval(node) {
        const likes = node.querySelector(SELECTORS.DIV.LIKES);

        return !likes || !likes.querySelector(SELECTORS.SPAN.COUNT);
    }

    _resetLoadCount() {
        this.currentLoadCount = 0;
    }
}

class UIHandler {
    constructor() {
        this.userPressed = true;
        this.loadMoreButton = null;
        this.cancelButton = null;
    }

    bindLoadMoreButton(button) {
        this.loadMoreButton = button;
        button.addEventListener('click', () => {
            this.userPressed = true;
            this._startScrollTrigger();
            this._showCancelButton();
        });
    }

    triggerLoadMore() {
        this.loadMoreButton?.click();
    }

    resetUIState() {
        this.userPressed = false;
        this._hideCancelButton();
    }

    displayErrorMessage(message) {
        if (!this.errorContainer) {
            const style =
                `position: fixed;` +
                `bottom: 10px;` +
                `right: 10px;` +
                `z-index: 10000;` +
                `background-color: rgba(255,0,0,0.85);` +
                `color: #fff;` +
                `padding: 12px 20px;` +
                `border-radius: 4px;` +
                `font: 1.4rem Roboto, sans-serif;` +
                `box-shadow: 0 2px 6px rgba(0,0,0,0.3);`;

            this.errorContainer = Object.assign(
                document.createElement('div'),
                {
                    textContent: message,
                    className: 'config-error-message',
                }
            );

            this.errorContainer.setAttribute('style', style);
            document.body.appendChild(this.errorContainer);
        } else {
            this.errorContainer.textContent = message;
            this.errorContainer.style.display = 'block';
        }

        setTimeout(() => {
            if (this.errorContainer) {
                this.errorContainer.style.display = 'none';
            }
        }, 5000);
    }

    _createCancelButton() {
        if (this.cancelButton) {
            this.cancelButton.style.display = 'block';
            return;
        }

        const style =
            `position: fixed;` +
            `bottom: 10px;` +
            `right: 10px;` +
            `z-index: 9999;` +
            `line-height: 1.3;` +
            `background-color: rgb(var(--color-background-blue-dark));` +
            `color: rgb(var(--color-text-bright));` +
            `font: 1.6rem Roboto, sans-serif;` +
            `box-sizing: border-box;`;

        this.cancelButton = document.createElement('button');
        this.cancelButton.textContent = 'Cancel';
        this.cancelButton.className = 'cancel-button';
        this.cancelButton.setAttribute('style', style);
        this.cancelButton.addEventListener('click', () => {
            this.userPressed = false;
            this.cancelButton.style.display = 'none';
        });

        document.body.appendChild(this.cancelButton);
    }

    _showCancelButton() {
        if (this.cancelButton) {
            this.cancelButton.style.display = 'block';
        } else {
            this._createCancelButton();
        }
    }

    _hideCancelButton() {
        if (this.cancelButton) {
            this.cancelButton.style.display = 'none';
        }
    }

    _startScrollTrigger() {
        const event = new Event('scroll', { bubbles: true });
        const interval = setInterval(() => {
            this.userPressed
                ? window.dispatchEvent(event)
                : clearInterval(interval);
        }, 100);
    }
}

class ConfigValidator {
    constructor(config) {
        this.config = config;
        this.errors = [];
    }

    validateConfig() {
        this._validatePositiveInteger('options.targetLoadCount');
        this._validateStringArray('remove.containsStrings');
        this._validateStringArray('options.linkedConditions');
        this._validateLinkedConditions();
        this._validateBooleanSettings([
            'remove.uncommented',
            'remove.unliked',
            'remove.text',
            'remove.images',
            'remove.gifs',
            'remove.videos',
            'options.caseSensitive',
            'options.reverseConditions',
            'runOn.home',
            'runOn.social',
            'runOn.profile',
            'runOn.guestHome'
        ]);

        if (this.errors.length) {
            throw new Error(`Anilist Activity Feed Filter: Script disabled due to configuration errors: ${this.errors.join(', ')}`);
        }
    }

    _validateLinkedConditions() {
        const linked = this._flattenArray(this._getConfigValue('options.linkedConditions'));
        const allowed = ['uncommented', 'unliked', 'text', 'images', 'gifs', 'videos', 'containsStrings'];
        if (linked.some(cond => !allowed.includes(cond))) {
            this.errors.push(`options.linkedConditions should only contain: ${allowed.join(', ')}`);
        }
    }

    _validateBooleanSettings(paths) {
        paths.forEach(path => {
            if (typeof this._getConfigValue(path) !== 'boolean') {
                this.errors.push(`${path} should be a boolean`);
            }
        });
    }

    _validateStringArray(path) {
        const value = this._getConfigValue(path);
        if (!Array.isArray(value)) {
            this.errors.push(`${path} should be an array`);
        } else if (!this._flattenArray(value).every(item => typeof item === 'string')) {
            this.errors.push(`${path} should only contain strings`);
        }
    }

    _validatePositiveInteger(path) {
        const value = this._getConfigValue(path);
        if (!Number.isInteger(value) || value <= 0) {
            this.errors.push(`${path} should be a positive non-zero integer`);
        }
    }

    _getConfigValue(path) {
        return path.split('.').reduce((obj, key) => obj[key], this.config);
    }

    _flattenArray(arr) {
        return arr.reduce((acc, val) => acc.concat(Array.isArray(val) ? this._flattenArray(val) : val), []);
    }
}

const SELECTORS = {
    DIV: {
        BUTTON: 'div.load-more',
        ACTIVITY: 'div.activity-entry',
        REPLIES: 'div.action.replies',
        LIKES: 'div.action.likes',
        MARKDOWN: 'div.markdown'
    },
    SPAN: {
        COUNT: 'span.count',
        YOUTUBE: 'span.youtube',
    },
    ACTIVITY: {
        TEXT: 'activity-text',
        MESSAGE: 'activity-message',
    },
    CLASS: {
        IMAGE: 'img',
        VIDEO: 'video',
    },
};

function initializeApp() {
    const uiHandler = new UIHandler();
    try {
        new ConfigValidator(config).validateConfig();
    } catch (error) {
        uiHandler.displayErrorMessage(error.message);
        return;
    }

    const activityHandler = new ActivityHandler(config);
    const mainApp = new MainApp(activityHandler, uiHandler, config);

    mainApp.initializeObserver();
}

initializeApp();