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Reddit Advanced Content Filter

Automatically hides posts and comments on Reddit based on keywords or subreddits you specify. Case-insensitive filtering supports plural forms. Perfect for curating your feed.

目前为 2024-12-06 提交的版本。查看 最新版本。

// ==UserScript==
// @name         Reddit Advanced Content Filter
// @namespace    https://gf.qytechs.cn/en/users/567951-stuart-saddler
// @version      2.0
// @description  Automatically hides posts and comments on Reddit based on keywords or subreddits you specify. Case-insensitive filtering supports plural forms. Perfect for curating your feed.
// @author       Stuart Saddler
// @license      MY
// @icon         https://clipart-library.com/images_k/smoke-clipart-transparent/smoke-clipart-transparent-6.png
// @supportURL   https://gf.qytechs.cn/en/users/567951-stuart-saddler
// @match        *://www.reddit.com/*
// @match        *://old.reddit.com/*
// @run-at       document-end
// @grant        GM.getValue
// @grant        GM.setValue
// @grant        GM_addStyle
// @grant        GM_registerMenuCommand
// @grant        GM_unregisterMenuCommand
// ==/UserScript==

(async function () {
    'use strict';

    let filteredCount = 0;
    let menuCommand = null;
    let processedPosts = new WeakSet();
    let blocklistArray = [];

    const CSS = `
        .content-filtered {
            display: none !important;
            height: 0 !important;
            overflow: hidden !important;
        }
        /* Updated CSS to match Bluesky's configuration dialog styles */
        .reddit-filter-dialog {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: white;
            padding: 20px;
            border-radius: 8px;
            z-index: 1000000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            min-width: 300px;
            max-width: 350px;
            font-family: Arial, sans-serif;
            color: #333;
        }
        .reddit-filter-dialog h2 {
            margin-top: 0;
            color: #0079d3;
            font-size: 1.5em;
            font-weight: bold;
        }
        .reddit-filter-dialog p {
            font-size: 0.9em;
            margin-bottom: 10px;
            color: #555;
        }
        .reddit-filter-dialog textarea {
            width: calc(100% - 16px); /* Ensures consistent padding */
            height: 150px; /* Adjusted height to match Bluesky's */
            padding: 8px;
            margin: 10px 0;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-family: monospace;
            background: #f9f9f9;
            color: #000;
            resize: vertical;
        }
        .reddit-filter-dialog .button-container {
            display: flex;
            justify-content: flex-end;
            gap: 10px;
            margin-top: 10px;
        }
        .reddit-filter-dialog button {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 8px 16px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1em;
            text-align: center;
        }
        .reddit-filter-dialog .save-btn {
            background-color: #0079d3;
            color: white;
        }
        .reddit-filter-dialog .cancel-btn {
            background-color: #f2f2f2;
            color: #333;
        }
        .reddit-filter-dialog button:hover {
            opacity: 0.9;
        }
        .reddit-filter-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999999;
        }
    `;

    // Add CSS
    if (typeof GM_addStyle !== 'undefined') {
        GM_addStyle(CSS);
    } else {
        const style = document.createElement('style');
        style.textContent = CSS;
        document.head.appendChild(style);
    }

    // Function to create and display a modal dialog for configuration
    async function showConfig() {
        const overlay = document.createElement('div');
        overlay.className = 'reddit-filter-overlay';

        const dialog = document.createElement('div');
        dialog.className = 'reddit-filter-dialog';
        dialog.innerHTML = `
            <h2>Reddit Filter: Blocklist</h2>
            <p>Enter keywords or subreddit names one per line. Filtering is case-insensitive.</p>
            <p><em>Keywords can match common plural forms (e.g., "apple" blocks "apples"). Irregular plurals (e.g., "mouse" and "mice") must be added separately. Subreddit names should be entered without the "r/" prefix (e.g., "subredditname").</em></p>
            <textarea spellcheck="false" id="blocklist">${blocklistArray.join('\n')}</textarea>
            <div class="button-container">
                <button class="cancel-btn">Cancel</button>
                <button class="save-btn">Save</button>
            </div>
        `;

        document.body.appendChild(overlay);
        document.body.appendChild(dialog);

        const closeDialog = () => {
            dialog.remove();
            overlay.remove();
        };

        dialog.querySelector('.save-btn').addEventListener('click', async () => {
            const blocklistInput = dialog.querySelector('#blocklist').value;

            blocklistArray = blocklistInput
                .split('\n')
                .map(item => item.trim().toLowerCase())
                .filter(item => item.length > 0);

            await GM.setValue('blocklist', blocklistArray);

            closeDialog();
            location.reload();
        });

        dialog.querySelector('.cancel-btn').addEventListener('click', closeDialog);
        overlay.addEventListener('click', closeDialog);
    }

    // Function to update menu commands with the current count of blocked items
    function updateCounter() {
        if (menuCommand !== null) {
            GM_unregisterMenuCommand(menuCommand);
        }

        menuCommand = GM_registerMenuCommand(
            `Configure Blocklist (${filteredCount} blocked)`, // Updated to show blocked count
            showConfig
        );
    }

    // Function to process and filter individual posts
    function processPost(post) {
        if (!post || processedPosts.has(post)) return;
        processedPosts.add(post);

        let shouldHide = false;

        // Check for blocked subreddits
        const subredditElement = post.querySelector('a[data-click-id="subreddit"], a.subreddit');
        if (subredditElement) {
            const subredditName = subredditElement.textContent.trim().replace(/^r\//i, '').toLowerCase();
            if (blocklistArray.includes(subredditName)) {
                shouldHide = true;
            }
        }

        // Check for blocked keywords if not already hidden
        if (!shouldHide && blocklistArray.length > 0) {
            const postContent = post.textContent.toLowerCase();
            for (const keyword of blocklistArray) {
                const escapedKeyword = keyword.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
                const pattern = new RegExp(`\\b${escapedKeyword}(s|es|ies)?\\b`, 'i');
                if (pattern.test(postContent)) {
                    shouldHide = true;
                    break;
                }
            }
        }

        if (shouldHide) {
            post.classList.add('content-filtered');
            const parentArticle = post.closest('article, div[data-testid="post-container"], shreddit-post');
            if (parentArticle) {
                parentArticle.classList.add('content-filtered');
            }
            filteredCount++;
            updateCounter();
        }
    }

    // Initialization function
    async function init() {
        blocklistArray = (await GM.getValue('blocklist', [])).map(item => item.toLowerCase());

        // Initialize menu commands
        updateCounter();

        // Set up MutationObserver to handle dynamically loaded content
        const observer = new MutationObserver(mutations => {
            for (const mutation of mutations) {
                for (const node of mutation.addedNodes) {
                    if (node.nodeType === Node.ELEMENT_NODE) {
                        if (node.matches('article, div[data-testid="post-container"], shreddit-post')) {
                            processPost(node);
                        }
                        node.querySelectorAll('article, div[data-testid="post-container"], shreddit-post')
                            .forEach(processPost);
                    }
                }
            }
        });

        observer.observe(document.body, {
            childList: true,
            subtree: true
        });

        // Initial processing of existing posts
        document.querySelectorAll('article, div[data-testid="post-container"], shreddit-post')
            .forEach(processPost);
    }

    // Run initialization
    await init();

})();

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