webui : Prevent rerendering on textarea input (#12299)

* webui: Make textarea uncontrolled to eliminate devastating lag

* Update index.html.gz

* use signal-style implementation

* rm console log

* no duplicated savedInitValue set

---------

Co-authored-by: Xuan Son Nguyen <son@huggingface.co>
This commit is contained in:
Woof Dog 2025-03-20 14:57:43 +00:00 committed by GitHub
parent dbb3a4739e
commit e04643063b
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3 changed files with 58 additions and 32 deletions

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@ -1,5 +1,6 @@
import { useEffect, useState } from 'react';
import { MessageExtraContext } from './types';
import { OptimizedTextareaValue } from '../components/ChatScreen';
// Extra context when using llama.cpp WebUI from llama-vscode, inside an iframe
// Ref: https://github.com/ggml-org/llama.cpp/pull/11940
@ -14,10 +15,7 @@ interface SetTextEvData {
* window.postMessage({ command: 'setText', text: 'Spot the syntax error', context: 'def test()\n return 123' }, '*');
*/
export const useVSCodeContext = (
inputRef: React.RefObject<HTMLTextAreaElement>,
setInputMsg: (text: string) => void
) => {
export const useVSCodeContext = (textarea: OptimizedTextareaValue) => {
const [extraContext, setExtraContext] = useState<MessageExtraContext | null>(
null
);
@ -27,20 +25,20 @@ export const useVSCodeContext = (
const handleMessage = (event: MessageEvent) => {
if (event.data?.command === 'setText') {
const data: SetTextEvData = event.data;
setInputMsg(data?.text);
textarea.setValue(data?.text);
if (data?.context && data.context.length > 0) {
setExtraContext({
type: 'context',
content: data.context,
});
}
inputRef.current?.focus();
textarea.focus();
}
};
window.addEventListener('message', handleMessage);
return () => window.removeEventListener('message', handleMessage);
}, [inputRef, setInputMsg]);
}, [textarea]);
// Add a keydown listener that sends the "escapePressed" message to the parent window
useEffect(() => {