Le Chat - Disable Slash Command

Prevents "/" from becoming a command chip and hides the slash-command palette popover
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// ==UserScript==
// @name         Le Chat - Disable Slash Command
// @namespace    https://chat.mistral.ai/
// @version      1.0.0
// @description  Prevents "/" from becoming a command chip and hides the slash-command palette popover
// @match        https://chat.mistral.ai/*
// @run-at       document-start
// @grant        none
// @icon         https://chat.mistral.ai/favicons/favicon.ico
// @license MIT
// ==/UserScript==

(function () {
  'use strict';

  const ZWSP = '\u200B';
  const SAFE_SLASH = '/' + ZWSP;

  function isEditable(el) {
    if (!el) return false;
    const tag = (el.tagName || '').toLowerCase();
    if (tag === 'textarea') return true;
    if (tag === 'input') return true;
    if (el.isContentEditable) return true;
    return !!el.closest?.('[contenteditable="true"]');
  }

  function insertText(text) {
    // The most compatible method in contenteditable editors
    document.execCommand('insertText', false, text);
  }

  function getTextBeforeCursor(maxChars = 10) {
    const sel = window.getSelection();
    if (!sel || sel.rangeCount === 0) return '';
    const range = sel.getRangeAt(0).cloneRange();
    if (!range.collapsed) return '';

    const container = range.startContainer;
    let root = container.nodeType === 1 ? container : container.parentElement;
    root = root?.closest?.('.ProseMirror, [contenteditable="true"]') || root;
    if (!root) return '';

    const r = document.createRange();
    r.selectNodeContents(root);
    r.setEnd(range.startContainer, range.startOffset);
    const txt = r.toString();
    return txt.slice(-maxChars);
  }

  function deleteSafeSlashIfNeeded(e) {
    const before = getTextBeforeCursor(4);
    if (!before.endsWith(SAFE_SLASH)) return false;

    e.preventDefault();
    const sel = window.getSelection();
    if (!sel) return true;

    try {
      sel.modify('extend', 'backward', 'character');
      sel.modify('extend', 'backward', 'character');
      document.execCommand('delete', false);
    } catch {
      document.execCommand('delete', false);
      document.execCommand('delete', false);
    }
    return true;
  }

  // 1) Input interception: make “/” “safe”
  document.addEventListener('beforeinput', (e) => {
    if (!isEditable(e.target)) return;

    if (e.inputType === 'insertText' && e.data === '/') {
      e.preventDefault();
      insertText(SAFE_SLASH);
      return;
    }
    if (e.inputType === 'deleteContentBackward') {
      deleteSafeSlashIfNeeded(e);
    }
  }, true);

  // 2) Fallback
  document.addEventListener('keydown', (e) => {
    if (!isEditable(e.target)) return;

    if (e.key === '/' && !e.ctrlKey && !e.metaKey && !e.altKey) {
      e.preventDefault();
      insertText(SAFE_SLASH);
      return;
    }
    if (e.key === 'Backspace') {
      deleteSafeSlashIfNeeded(e);
    }
  }, true);

  // 3) Targeted hide: Hide only the “slash command palette” popover (cmdk)
  function isSlashPaletteWrapper(wrapper) {
    if (!wrapper?.querySelector) return false;

    // The profile menu is role="menu" / data-radix-menu-content – we will NOT touch that.
    if (wrapper.querySelector('[data-radix-menu-content][role="menu"]')) return false;

    // The Slash palette in your “after” HTML is cmdk-based and typically contains beta-* values
    // (e.g., beta-websearch, beta-trampoline).:contentReference[oaicite:4]{index=4}
    const hasCmdk = !!wrapper.querySelector('[cmdk-root]');
    const hasKnownItems = !!wrapper.querySelector('[cmdk-item][data-value="beta-websearch"],[cmdk-item][data-value="beta-trampoline"]');

    return hasCmdk && hasKnownItems;
  }

  function hideIfSlashPalette(node) {
    if (!node || node.nodeType !== 1) return;
    const el = /** @type {Element} */ (node);

    // The node itself can be a wrapper; otherwise, find wrappers under
    const wrappers = [];
    if (el.matches?.('[data-radix-popper-content-wrapper]')) wrappers.push(el);
    el.querySelectorAll?.('[data-radix-popper-content-wrapper]').forEach(w => wrappers.push(w));

    for (const w of wrappers) {
      if (isSlashPaletteWrapper(w)) {
        w.style.display = 'none';
        w.style.visibility = 'hidden';
        w.style.pointerEvents = 'none';
      }
    }
  }

  function startObserver() {
    const obs = new MutationObserver((mutations) => {
      for (const m of mutations) {
        for (const n of m.addedNodes) hideIfSlashPalette(n);
      }
    });
    obs.observe(document.documentElement, { childList: true, subtree: true });

    // cleanup if it already exists
    hideIfSlashPalette(document.documentElement);
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', startObserver, { once: true });
  } else {
    startObserver();
  }
})();