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# Pull Request Template ## Description This PR includes, On Windows, pressing **Ctrl+Enter** in the reply editor was inserting an unintended line break before sending. This led to two issues: * **Unexpected blank lines** After adding a line break with Shift+Enter and removing it with Backspace, the editor looked correct. However, sending with Ctrl+Enter reintroduced a hidden break, resulting in an extra blank line in the final message. * **Selected text being replaced** When text was selected and Ctrl+Enter was pressed, the selection was replaced with a line break instead of being sent. Fixes https://linear.app/chatwoot/issue/CW-6840/newline-bug-in-the-editor ### **Cause** Two keyboard handlers responded to **Ctrl+Enter** on Windows: * ProseMirror (`Mod-Enter`) inserted a hard break * ReplyBox (`$mod+Enter`) triggered send The existing guard only checked `metaKey` (Cmd), so it never worked on Windows. As a result, a line break was inserted just before sending. ### **Solution** Make the modifier check platform-aware so the editor correctly intercepts the send shortcut: * Added `detectOS`, `isMac`, and `OS` constants * Introduced `hasPressedMod` (uses `metaKey` on macOS, `ctrlKey` elsewhere) This ensures Ctrl+Enter sends the message without modifying content, while keeping existing behavior unchanged. **NB:** macOS behavior with Cmd+Enter remains unchanged ## Type of change - [x] Bug fix (non-breaking change which fixes an issue) ## How Has This Been Tested? **Case 1: line break** 1. Type `hello` 2. Press Shift+Enter, then Backspace 3. Press Ctrl+Enter → Message contains an unexpected blank new line **Case 2: Selection replaced** 1. Type two lines using Shift+Enter 2. Select text on the second line 3. Press Ctrl+Enter → Selected text is replaced and not sent ### Screencast **Before** https://github.com/user-attachments/assets/d6d285a9-260b-4711-8bbd-d0c8519e8d20 **After** https://github.com/user-attachments/assets/c0ace1f7-5d22-44a2-8e08-22190ee21e61 ## Checklist: - [x] My code follows the style guidelines of this project - [x] I have performed a self-review of my code - [x] I have commented on my code, particularly in hard-to-understand areas - [ ] I have made corresponding changes to the documentation - [x] My changes generate no new warnings - [x] I have added tests that prove my fix is effective or that my feature works - [x] New and existing unit tests pass locally with my changes - [ ] Any dependent changes have been merged and published in downstream modules |
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