Bluesky Threading Improvements

Adds colors and expand/collapse functionality to Bluesky threads

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         Bluesky Threading Improvements
// @namespace    zetaphor.com
// @description  Adds colors and expand/collapse functionality to Bluesky threads
// @version      0.4
// @license      MIT
// @match        https://bsky.app/*
// @grant        GM_addStyle
// ==/UserScript==

(function() {
    'use strict';

    // Add our styles
    GM_addStyle(`
        /* Thread depth colors */
        div[style*="border-left-width: 2px"] {
            border-left-width: 2px !important;
            border-left-style: solid !important;
        }

        /* Color definitions */
        div[style*="border-left-width: 2px"]:nth-child(1) { border-color: #2962ff !important; }  /* Blue */
        div[style*="border-left-width: 2px"]:nth-child(2) { border-color: #8e24aa !important; }  /* Purple */
        div[style*="border-left-width: 2px"]:nth-child(3) { border-color: #2e7d32 !important; }  /* Green */
        div[style*="border-left-width: 2px"]:nth-child(4) { border-color: #ef6c00 !important; }  /* Orange */
        div[style*="border-left-width: 2px"]:nth-child(5) { border-color: #c62828 !important; }  /* Red */
        div[style*="border-left-width: 2px"]:nth-child(6) { border-color: #00796b !important; }  /* Teal */
        div[style*="border-left-width: 2px"]:nth-child(7) { border-color: #c2185b !important; }  /* Pink */
        div[style*="border-left-width: 2px"]:nth-child(8) { border-color: #ffa000 !important; }  /* Amber */
        div[style*="border-left-width: 2px"]:nth-child(9) { border-color: #1565c0 !important; }  /* Dark Blue */
        div[style*="border-left-width: 2px"]:nth-child(10) { border-color: #6a1b9a !important; } /* Deep Purple */
        div[style*="border-left-width: 2px"]:nth-child(11) { border-color: #558b2f !important; } /* Light Green */
        div[style*="border-left-width: 2px"]:nth-child(12) { border-color: #d84315 !important; } /* Deep Orange */
        div[style*="border-left-width: 2px"]:nth-child(13) { border-color: #303f9f !important; } /* Indigo */
        div[style*="border-left-width: 2px"]:nth-child(14) { border-color: #b71c1c !important; } /* Dark Red */
        div[style*="border-left-width: 2px"]:nth-child(15) { border-color: #006064 !important; } /* Cyan */

        /* Collapse button styles */
        .thread-collapse-btn {
            cursor: pointer;
            width: 20px;
            height: 20px;
            position: absolute;
            left: -16px;
            top: 18px;
            background-color: #1e2937;
            color: #aebbc9;
            border: 1px solid #4a6179;
            border-radius: 25%;
            z-index: 100;
            padding: 0;
            transition: background-color 0.2s ease;
        }

        .thread-collapse-btn:hover {
            background-color: #2e4054;
        }

        /* Indicator styles */
        .thread-collapse-indicator {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-family: monospace;
            font-size: 16px;
            line-height: 1;
            user-select: none;
        }

        /* Collapsed thread styles */
        .thread-collapsed {
            display: none !important;
        }

        /* Post container relative positioning for collapse button */
        .post-with-collapse {
            position: relative;
        }

        /* Animation for button spin */
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .thread-collapse-btn.spinning {
            animation: spin 0.2s ease-in-out;
        }
    `);

    // Utility function to check if we're on a post page
    function isPostPage() {
        return window.location.pathname.match(/^\/profile\/[^\/]+\/post\/.+/);
    }

    function getIndentCount(postContainer) {
        const parent = postContainer.parentElement;
        if (!parent) return 0;

        const indents = Array.from(parent.parentElement.children).filter(child =>
            child.getAttribute('style')?.includes('border-left-width: 2px')
        );

        return indents.length;
    }

    function hasChildThreads(postContainer) {
        const currentIndents = getIndentCount(postContainer);
        const threadContainer = postContainer.closest('[data-thread-container]') ||
                              postContainer.parentElement?.parentElement?.parentElement?.parentElement;

        if (!threadContainer) return false;

        const nextThreadContainer = threadContainer.nextElementSibling;
        if (!nextThreadContainer) return false;

        const nextPost = nextThreadContainer.querySelector('div[role="link"][tabindex="0"]');
        if (!nextPost) return false;

        const nextIndents = getIndentCount(nextPost);
        return nextIndents > currentIndents;
    }

    function toggleThread(threadStart, isCollapsed) {
        const currentIndents = getIndentCount(threadStart);
        const threadContainer = threadStart.closest('[data-thread-container]') ||
                              threadStart.parentElement?.parentElement?.parentElement?.parentElement;

        let nextContainer = threadContainer?.nextElementSibling;
        while (nextContainer) {
            const nextPost = nextContainer.querySelector('div[role="link"][tabindex="0"]');
            if (nextPost) {
                const nextIndents = getIndentCount(nextPost);

                if (nextIndents <= currentIndents) break;

                if (isCollapsed) {
                    nextContainer.classList.add('thread-collapsed');
                } else {
                    nextContainer.classList.remove('thread-collapsed');
                }
            }
            nextContainer = nextContainer.nextElementSibling;
        }
    }

    function addCollapseButton(postContainer) {
        if (!postContainer || postContainer.querySelector('.thread-collapse-btn')) {
            return;
        }

        const button = document.createElement('button');
        button.className = 'thread-collapse-btn';
        button.setAttribute('aria-label', 'Collapse thread');

        const indicator = document.createElement('div');
        indicator.className = 'thread-collapse-indicator';
        indicator.textContent = '-';
        button.appendChild(indicator);

        postContainer.classList.add('post-with-collapse');
        postContainer.appendChild(button);

        button.addEventListener('click', (e) => {
            e.stopPropagation();
            const isCollapsed = button.classList.toggle('collapsed');

            button.classList.add('spinning');

            setTimeout(() => {
                indicator.textContent = isCollapsed ? '+' : '-';
                button.classList.remove('spinning');
            }, 200);

            toggleThread(postContainer, isCollapsed);
        });
    }

    function initializeThreadCollapse() {
        if (!isPostPage()) return false;

        const posts = document.querySelectorAll('div[role="link"][tabindex="0"]');
        let hasAddedButtons = false;

        posts.forEach(post => {
            if (hasChildThreads(post)) {
                addCollapseButton(post);
                hasAddedButtons = true;
            }
        });

        return hasAddedButtons;
    }

    // Enhanced initialization with retry mechanism
    function initializeWithRetry() {
        const maxAttempts = 10;
        let attempts = 0;
        let initialized = false;

        function attempt() {
            if (attempts >= maxAttempts || initialized) return;

            attempts++;

            // Check if the main post container is present
            const mainPost = document.querySelector('div[role="link"][tabindex="0"]');
            if (!mainPost) {
                setTimeout(attempt, 500);
                return;
            }

            // Try to initialize
            initialized = initializeThreadCollapse();

            if (!initialized) {
                setTimeout(attempt, 500);
            }
        }

        // Start the first attempt
        attempt();
    }

    // Initialize on page load
    initializeWithRetry();

    // Set up observer for dynamic content changes
    const observer = new MutationObserver((mutations) => {
        for (const mutation of mutations) {
            for (const node of mutation.addedNodes) {
                if (node.nodeType === 1) {
                    const posts = node.querySelectorAll('div[role="link"][tabindex="0"]');
                    if (posts.length > 0) {
                        initializeWithRetry();
                        break;
                    }
                }
            }
        }
    });

    // Start observing after a short delay to ensure the page is ready
    setTimeout(() => {
        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    }, 1000);
})();