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Paste to Grok Textarea

Paste text into Grok textarea from main page

// ==UserScript==
// @name         Paste to Grok Textarea
// @description  Paste text into Grok textarea from main page
// @match        *://grok.com/*
// @version 0.0.1.20250516100733
// @namespace https://greasyfork.org/users/1435046
// ==/UserScript==

(function () {
  'use strict';

  window.addEventListener("message", event => {
    const data = event.data;

    if (event.data && event.data.type === 'reasonButtonClicked') {
      document.querySelector('button[aria-label="Think"]').click();
      return;
    }

    if (event.data?.type === 'newChatButtonClicked') {
      const customNewChatButton = document.querySelector('a[href="/chat"]');
      if (customNewChatButton) customNewChatButton.click();
    }

    if (event.data.type === "prompt" && event.data.content.trim()) {
      const textarea = document.querySelector('textarea[aria-label="Ask Grok anything"]');
      if (textarea) {
        const nativeInputValueSetter = Object.getOwnPropertyDescriptor(window.HTMLTextAreaElement.prototype, "value").set;
        nativeInputValueSetter.call(textarea, event.data.content); // Set like the browser would

        // Now trigger a React-compatible InputEvent
        const inputEvent = new InputEvent('input', {
          bubbles: true,
          cancelable: true,
          inputType: 'insertText',
          data: event.data.content,
        });

        textarea.dispatchEvent(inputEvent);

        document.querySelector('button[aria-label="Submit"]').click();
      }
    }
  });
})();