ChatLLM Reverse Enter

A tiny browser extension (Chrome / Chromium / Firefox) that reverses the Enter behavior in the Abacus.AI ChatLLM chat box:

• Enter → inserts a newline (lets you write multi-line prompts comfortably)
• Shift + Enter → submits the prompt

This is useful when you write longer or more structured prompts and don’t want to accidentally send them by hitting Enter too early.

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How it works

The extension injects a content script on the ChatLLM app (https://apps.abacus.ai/*) and:

1. Locates the main chat textarea inside the element with data-id="prependMsg".
2. Intercepts keydown events on that textarea:
   • Blocks the app’s default Enter behavior.
   • On plain Enter:
     • Manually inserts a \n at the cursor position.
     • Dispatches an input event so the React/Vue app updates its internal state.
   • On Shift + Enter:
     • Prevents the newline.
     • Triggers the same send action as clicking the send button (or calling the ul() function when available).

Because the ChatLLM UI is a SPA and may render the textarea asynchronously, the script uses a combination of:

• A short polling loop on load (up to ~20 seconds)
• A MutationObserver to re-attach if the textarea is recreated

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Installation (Chrome / Edge / Brave)

1. Clone this repository:

git clone https://github.com/cclambie/ChatLLM-Reverse-Enter.git cd ChatLLM-Reverse-Enter

2. Open Chrome and go to:

chrome://extensions

3. Turn on Developer mode (top-right toggle).
4. Click "Load unpacked".
5. Select the ChatLLM-Reverse-Enter folder.

The extension should now appear in your extensions list.

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Files

• manifest.json
  Chrome Manifest V3 definition for the extension.

• Matches https://apps.abacus.ai/*

• Injects content.js as a content script at document_idle.

• content.js
  Content script that:

• Finds the ChatLLM input textarea (div[data-id="prependMsg"] textarea).

• Intercepts keydown events.

• Implements:

• Enter → newline

• Shift + Enter → submit (via send button / ul())

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Usage

1. Make sure the extension is loaded.
2. Open Abacus.AI ChatLLM (e.g. https://apps.abacus.ai/chatllm/...).
3. In the chat input:

• Press Enter → a newline should be inserted (no message sent).
• Press Shift + Enter → the message should be submitted without adding a newline.

If it doesn't work, open DevTools → Console and look for log messages starting with SHIFTENTER: for debugging.

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Development

After making changes to manifest.json or content.js:

1. Go to chrome://extensions.
2. Click Reload on the ChatLLM Reverse Enter extension.
3. Reload the ChatLLM tab.

You can add additional logging with console.log('SHIFTENTER: ...') in content.js to inspect behavior.

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License

MIT

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