From 6244df835257f448c9fda37c02ba090ad651b40b Mon Sep 17 00:00:00 2001
From: Paul Gauthier <aider@paulg.org>
Date: Sun, 16 Jul 2023 14:12:01 -0300
Subject: [PATCH] aider: `get_input` now treats control+enter as a newline with
 prompt toolkit KeyBindings.

# Aider chat conversation:

USER: can we have `get_input` treat control+enter as a newline with prompt toolkit KeyBindings

ASSISTANT: To implement this feature, we need to modify the `get_input` method in the `InputOutput` class in the `aider/io.py` file. We will use the `KeyBindings` class from `prompt_toolkit.keys` to bind the `Control+Enter` key combination to insert a newline.

Here are the changes:

```python
aider/io.py
<<<<<<< ORIGINAL
from prompt_toolkit.shortcuts import CompleteStyle, PromptSession, prompt
=======
from prompt_toolkit.shortcuts import CompleteStyle, PromptSession, prompt
from prompt_toolkit.keys import Keys
from prompt_toolkit.key_binding import KeyBindings
>>>>>>> UPDATED

```python
aider/io.py
<<<<<<< ORIGINAL
            session = PromptSession(**session_kwargs)
=======
            kb = KeyBindings()

            @kb.add(Keys.ControlJ, eager=True)
            def _(event):
                event.current_buffer.insert_text('\n')

            session = PromptSession(key_bindings=kb, **session_kwargs)
>>>>>>> UPDATED
```

This code creates a new `KeyBindings` instance and adds a binding for `Control+Enter` (represented by `Keys.ControlJ`) to insert a newline. Then, it passes this key bindings instance to the `PromptSession` constructor.
---
 aider/io.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/aider/io.py b/aider/io.py
index c96f65d9a..43c4eb931 100644
--- a/aider/io.py
+++ b/aider/io.py
@@ -7,6 +7,8 @@ from prompt_toolkit.completion import Completer, Completion
 from prompt_toolkit.history import FileHistory
 from prompt_toolkit.lexers import PygmentsLexer
 from prompt_toolkit.shortcuts import CompleteStyle, PromptSession, prompt
+from prompt_toolkit.keys import Keys
+from prompt_toolkit.key_binding import KeyBindings
 from prompt_toolkit.styles import Style
 from pygments.lexers import MarkdownLexer, guess_lexer_for_filename
 from pygments.token import Token
@@ -203,7 +205,13 @@ class InputOutput:
             if self.input_history_file is not None:
                 session_kwargs["history"] = FileHistory(self.input_history_file)
 
-            session = PromptSession(**session_kwargs)
+            kb = KeyBindings()
+
+            @kb.add(Keys.ControlJ, eager=True)
+            def _(event):
+                event.current_buffer.insert_text('\n')
+
+            session = PromptSession(key_bindings=kb, **session_kwargs)
             line = session.prompt()
 
             if line and line[0] == "{" and not multiline_input: