Roundcube Plugin: Ctrl+Enter (⌘+Enter) to Send Message

This plugin adds a convenient keyboard shortcut for sending emails while composing in Roundcube with the TinyMCE editor.
It binds Ctrl+Enter (Windows/Linux) and ⌘+Enter (macOS) to the Send action, without patching Roundcube core files.

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Features

• Works on Roundcube compose screen only.
• Supports both TinyMCE 5 and 6 APIs.
• Resilient across different Roundcube versions and skins:
  • Uses the official window.rcmail_editor_settings.setup_callback.
  • Hooks into TinyMCE editors even if this script loads after initialization.
• Falls back to clicking the Send button if the internal command API is unavailable.
• Avoids double-registration across multiple editors.

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Installation

1. Copy this plugin into your Roundcube plugins/ directory:

   cd /path/to/roundcube/plugins
   git clone https://github.com/gloony/ctrl_enter_send.git
   

The folder structure should look like:

roundcube/ └── plugins/ └── ctrl_enter_send/ ├── ctrl_enter_send.php └── compose-shortcuts.js

2. Enable the plugin in your Roundcube config (config/config.inc.php):

   $config['plugins'][] = 'ctrl_enter_send';
   

3. Clear Roundcube’s cache (optional but recommended):

   rm -rf /path/to/roundcube/temp/*
   
   

4. Reload Roundcube in your browser and open the compose screen.

Usage

While writing an email in the HTML editor (TinyMCE):

Press Ctrl+Enter (Windows/Linux) or ⌘+Enter (macOS) to send.

The plugin calls Roundcube’s internal send command.

If the API call fails (different Roundcube branch), it gracefully falls back to simulating a click on the Send button.