Filter Reddit

Hide posts and comments containing specified keywords on Reddit

目前為 2024-11-13 提交的版本,檢視 最新版本

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Filter Reddit
// @namespace    https://greasyfork.org/en/users/567951-stuart-saddler
// @version      1.3
// @description  Hide posts and comments containing specified keywords on Reddit
// @license      MIT
// @match        *://www.reddit.com/*
// @match        *://old.reddit.com/*
// @run-at       document-end
// @grant        GM.getValue
// @grant        GM.setValue
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_addStyle
// @grant        GM_registerMenuCommand
// @grant        GM_unregisterMenuCommand
// ==/UserScript==

(function() {
    'use strict';

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

    // Cross-compatibility wrapper for GM functions
    const GM = {
        async getValue(name, defaultValue) {
            return typeof GM_getValue !== 'undefined'
                ? GM_getValue(name, defaultValue)
                : await GM.getValue(name, defaultValue);
        },
        async setValue(name, value) {
            if (typeof GM_setValue !== 'undefined') {
                GM_setValue(name, value);
            } else {
                await GM.setValue(name, value);
            }
        }
    };

    const CSS = `
        .content-filtered {
            display: none !important;
            height: 0 !important;
            overflow: hidden !important;
        }
        .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: 500px;
        }
        .reddit-filter-dialog textarea {
            width: 100%;
            min-height: 200px;
            margin: 10px 0;
            padding: 8px;
            border: 1px solid #ccc;
            border-radius: 4px;
            font-family: monospace;
        }
        .reddit-filter-dialog button {
            padding: 8px 16px;
            margin: 0 5px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }
        .reddit-filter-dialog .save-btn {
            background-color: #0079d3;
            color: white;
        }
        .reddit-filter-dialog .cancel-btn {
            background-color: #f2f2f2;
        }
        .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 getKeywords() {
        return GM_getValue('filterKeywords', []);
    }

    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 style="margin-top: 0;">Reddit Filter Keywords</h2>
            <p>Enter keywords one per line:</p>
            <textarea spellcheck="false">${keywordsArray.join('\n')}</textarea>
            <div style="text-align: right;">
                <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 newKeywords = dialog.querySelector('textarea').value
                .split('\n')
                .map(k => k.trim())
                .filter(k => k.length > 0);
            await GM.setValue('filterKeywords', newKeywords);
            closeDialog();
            location.reload();
        });

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

    function updateCounter() {
        if (menuCommand) {
            GM_unregisterMenuCommand(menuCommand);
        }
        menuCommand = GM_registerMenuCommand(
            `Configure Filter Keywords (${filteredCount} blocked)`,
            showConfig
        );
    }

    function processPost(post) {
        if (!post || processedPosts.has(post)) return;
        processedPosts.add(post);

        const postContent = [
            post.textContent,
            ...Array.from(post.querySelectorAll('h1, h2, h3, p, a[href], [role="heading"]'))
                .map(el => el.textContent)
        ].join(' ').toLowerCase();

        if (keywordsArray.some(keyword => postContent.includes(keyword.toLowerCase()))) {
            post.classList.add('content-filtered');
            const parentArticle = post.closest('article, div[data-testid="post-container"]');
            if (parentArticle) {
                parentArticle.classList.add('content-filtered');
            }
            filteredCount++;
            updateCounter();
        }
    }

    async function init() {
        keywordsArray = await GM.getValue('filterKeywords', []);

        // Initialize menu
        updateCounter();

        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
        document.querySelectorAll('article, div[data-testid="post-container"], shreddit-post')
            .forEach(processPost);
    }

    // Ensure DOM is ready before initializing
    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', init);
    } else {
        init();
    }
})();