fix(ui): allow decimals in number inputs

still some jank but eh

invokeai/frontend/web/src/common/components/IAINumberInput.tsx

@@ -28,7 +28,7 @@ import {
   useState,
 } from 'react';
 
-const numberStringRegex = /^-?(0\.)?\.?$/;
+export const numberStringRegex = /^-?(0\.)?\.?$/;
 
 interface Props extends Omit<NumberInputProps, 'onChange'> {
   label?: string;

invokeai/frontend/web/src/features/nodes/components/fields/NumberInputFieldComponent.tsx

@@ -6,6 +6,7 @@ import {
   NumberInputStepper,
 } from '@chakra-ui/react';
 import { useAppDispatch } from 'app/store/storeHooks';
+import { numberStringRegex } from 'common/components/IAINumberInput';
 import { fieldValueChanged } from 'features/nodes/store/nodesSlice';
 import {
   FloatInputFieldTemplate,
@@ -13,7 +14,7 @@ import {
   IntegerInputFieldTemplate,
   IntegerInputFieldValue,
 } from 'features/nodes/types/types';
-import { memo } from 'react';
+import { memo, useEffect, useState } from 'react';
 import { FieldComponentProps } from './types';
 
 const NumberInputFieldComponent = (
@@ -23,17 +24,42 @@ const NumberInputFieldComponent = (
   >
 ) => {
   const { nodeId, field } = props;
-
   const dispatch = useAppDispatch();
+  const [valueAsString, setValueAsString] = useState<string>(
+    String(field.value)
+  );
 
-  const handleValueChanged = (_: string, value: number) => {
-    dispatch(fieldValueChanged({ nodeId, fieldName: field.name, value }));
+  const handleValueChanged = (v: string) => {
+    setValueAsString(v);
+    // This allows negatives and decimals e.g. '-123', `.5`, `-0.2`, etc.
+    if (!v.match(numberStringRegex)) {
+      // Cast the value to number. Floor it if it should be an integer.
+      dispatch(
+        fieldValueChanged({
+          nodeId,
+          fieldName: field.name,
+          value:
+            props.template.type === 'integer'
+              ? Math.floor(Number(v))
+              : Number(v),
+        })
+      );
+    }
   };
 
+  useEffect(() => {
+    if (
+      !valueAsString.match(numberStringRegex) &&
+      field.value !== Number(valueAsString)
+    ) {
+      setValueAsString(String(field.value));
+    }
+  }, [field.value, valueAsString]);
+
   return (
     <NumberInput
       onChange={handleValueChanged}
-      value={field.value}
+      value={valueAsString}
       step={props.template.type === 'integer' ? 1 : 0.1}
       precision={props.template.type === 'integer' ? 0 : 3}
     >