Clear last message clears last user message as well as model's response.

Editing the message history does not move the history cursor to the bottom, so you can keep editing another message.
Pressing esc moves history cursor to the bottom for new message.

VOLlama.py

@@ -1,4 +1,4 @@
-version = 17
+version = 18
 import wx
 import threading
 import sounddevice as sd
@@ -141,13 +141,12 @@ def setStatus(self, text):
 			self.SetStatusText(text)
 
 	def clearLast(self, event):
-		if len(self.model.messages)==0: return
-		if len(self.model.messages)==1 and self.model.messages[0].role == 'system': return
-		if self.model.messages[-1].role == 'user':
-			self.prompt.SetValue(self.model.messages[-1].content)
-		else:
+		if len(self.model.messages)==0 | (len(self.model.messages)==1 and self.model.messages[0].role == 'system'):
 			self.prompt.SetValue("")
-		self.model.messages = self.model.messages[:-1]
+			return
+		delete=-1 if self.model.messages[-1].role == 'user' else -2
+		self.prompt.SetValue(self.model.messages[delete].content)
+		self.model.messages = self.model.messages[:delete]
 		self.historyIndex = len(self.model.messages)
 		self.refreshChat()
 
@@ -260,6 +259,9 @@ def OnHistoryUp(self, event):
 		self.historyIndex -= 1
 		if self.historyIndex<0:
 			self.historyIndex = 0
+		if self.model.messages[self.historyIndex].role == "system":
+			self.historyIndex = 1
+			return
 		self.prompt.SetValue(self.model.messages[self.historyIndex].content)
 		self.prompt.SetInsertionPointEnd()
 		self.sendButton.SetLabel("Edit")
@@ -284,6 +286,10 @@ def FocusOnPrompt(self, event=None):
 		self.model.generate = False
 		self.speech.stop()
 		self.prompt.SetFocus()
+		self.historyIndex = len(self.model.messages)
+		self.prompt.SetValue("")
+		self.sendButton.SetLabel("Send")
+
 
 	def onStopGeneration(self):
 		play("receive.wav")
@@ -303,7 +309,6 @@ def processMessage(message):
 				if self.historyIndex<len(self.model.messages):
 					self.model.messages[self.historyIndex].content = message
 					self.refreshChat()
-					self.onStopGeneration()
 					return
 				self.response.AppendText("You: " + message + "\n")
 				self.sendButton.SetLabel("Stop")

changelog.md

@@ -1,6 +1,9 @@
 # Change log
 
-* Fixed setting history index incorrectly when there's a system message.
+* Clear last message clears last user message as well as model's response.
+* Editing the message history does not move the history cursor to the bottom, so you can keep editing another message.
+* Pressing esc moves history cursor to the bottom for new message.
+* Fixed incorrect history cursor when there's a system message.
 * Changed send button to edit when editing history.
 * Paste last cleared user message into the prompt for editing or simply resending.
 * Edit history: alt+(or option on mac)+up/down