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Fix issue where WaveAI text area would resize on launch #1397

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Merged
esimkowitz merged 1 commit into from
Dec 5, 2024
Merged

Fix issue where WaveAI text area would resize on launch #1397

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41 changes: 25 additions & 16 deletions frontend/app/view/waveai/waveai.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -572,24 +572,33 @@ const ChatInput = forwardRef<HTMLTextAreaElement, ChatInputProps>(
model.textAreaRef = textAreaRef;
}, []);

const adjustTextAreaHeight = () => {
if (textAreaRef.current == null) {
return;
}
// Adjust the height of the textarea to fit the text
const textAreaMaxLines = 100;
const textAreaLineHeight = termFontSize * 1.5;
const textAreaMinHeight = textAreaLineHeight;
const textAreaMaxHeight = textAreaLineHeight * textAreaMaxLines;

textAreaRef.current.style.height = "1px";
const scrollHeight = textAreaRef.current.scrollHeight;
const newHeight = Math.min(Math.max(scrollHeight, textAreaMinHeight), textAreaMaxHeight);
textAreaRef.current.style.height = newHeight + "px";
};
const adjustTextAreaHeight = useCallback(
(value: string) => {
if (textAreaRef.current == null) {
return;
}

// Adjust the height of the textarea to fit the text
const textAreaMaxLines = 5;
const textAreaLineHeight = termFontSize * 1.5;
const textAreaMinHeight = textAreaLineHeight;
const textAreaMaxHeight = textAreaLineHeight * textAreaMaxLines;

if (value === "") {
textAreaRef.current.style.height = `${textAreaLineHeight}px`;
return;
}

textAreaRef.current.style.height = `${textAreaLineHeight}px`;
const scrollHeight = textAreaRef.current.scrollHeight;
const newHeight = Math.min(Math.max(scrollHeight, textAreaMinHeight), textAreaMaxHeight);
textAreaRef.current.style.height = newHeight + "px";
},
[termFontSize]
);

useEffect(() => {
adjustTextAreaHeight();
adjustTextAreaHeight(value);
}, [value]);

return (
Expand Down