fix: Updating handling of ComboboxInput to better handle multiline va…

…riants

src/Css.ts

@@ -3966,12 +3966,15 @@ class CssBuilder<T extends Properties> {
   }
 
   // visuallyHidden
-  /** Sets `position: "absolute"; overflow: "hidden"; clip: "inset(50%)"; clipPath: ""; border: 0; height: "1px"; margin: "-1px"; width: "1px"; padding: 0; whiteSpace: "nowrap"`. */
+  /** Sets `position: "absolute"; overflow: "hidden"; clip: "inset(50%)"; clipPath: ""; border: 0; height: "1px"; margin: "-1px"; width: "1px"; padding: 0; whiteSpace: "nowrap"; opacity: 0`. */
   get visuallyHidden() {
     return this.add("position", "absolute").add("overflow", "hidden").add("clip", "inset(50%)").add("clipPath", "").add(
       "border",
       0,
-    ).add("height", "1px").add("margin", "-1px").add("width", "1px").add("padding", 0).add("whiteSpace", "nowrap");
+    ).add("height", "1px").add("margin", "-1px").add("width", "1px").add("padding", 0).add("whiteSpace", "nowrap").add(
+      "opacity",
+      0,
+    );
   }
 
   // contentEmpty

src/components/Chips.tsx

@@ -13,12 +13,13 @@ export interface ChipsProps<X> {
   values: string[] | ChipValue[];
   xss?: X;
   compact?: boolean;
+  wrap?: boolean;
 }
 
 /** Renders a list of `Chip`s, with wrapping & appropriate margin between each `Chip`. */
 export function Chips<X extends Only<ChipsXss, X>>(props: ChipsProps<X>) {
-  const { wrap } = usePresentationContext();
-  const { values, compact, xss = {} } = props;
+  const { wrap: presentationWrap } = usePresentationContext();
+  const { values, compact, xss = {}, wrap = presentationWrap } = props;
   return (
     <div
       css={{

src/inputs/TextFieldBase.tsx

@@ -126,10 +126,7 @@ export function TextFieldBase<X extends Only<TextFieldXss, X>>(props: TextFieldB
     container: Css.df.fdc.w100.maxw(fieldMaxWidth).relative.if(labelStyle === "left").maxw100.fdr.gap2.jcsb.aic.$,
     inputWrapper: {
       ...Css[typeScale].df.aic.br4.px1.w100
-        .hPx(fieldHeight - maybeSmaller)
-        .if(compact)
-        .hPx(compactFieldHeight - maybeSmaller).$,
-      ...Css.bgColor(bgColor)
+        .bgColor(bgColor)
         .gray900.if(contrast)
         .white.if(labelStyle === "left").w50.$,
       // When borderless then perceived vertical alignments are misaligned. As there is no longer a border, then the field looks oddly indented.
@@ -141,6 +138,15 @@ export function TextFieldBase<X extends Only<TextFieldXss, X>>(props: TextFieldB
         : Css.bGray300.if(contrast).bGray700.$),
       // Do not add borders to compound fields. A compound field is responsible for drawing its own borders
       ...(!compound ? Css.ba.$ : {}),
+      // When multiline is true, then we want to allow the field to grow to the height of the content, but not shrink below the minHeight
+      // Otherwise, set fixed heights values accordingly.
+      ...(multiline
+        ? Css.mhPx(fieldHeight - maybeSmaller)
+            .if(compact)
+            .mhPx(compactFieldHeight - maybeSmaller).$
+        : Css.hPx(fieldHeight - maybeSmaller)
+            .if(compact)
+            .hPx(compactFieldHeight - maybeSmaller).$),
     },
     inputWrapperReadOnly: {
       ...Css[typeScale].df.aic.w100.gray900.if(contrast).white.if(labelStyle === "left").w50.$,
@@ -255,9 +261,15 @@ export function TextFieldBase<X extends Only<TextFieldXss, X>>(props: TextFieldB
               {startAdornment && <span css={Css.df.aic.asc.fs0.br4.pr1.$}>{startAdornment}</span>}
               {unfocusedPlaceholder && (
                 <div
+                  // Setting -1 tabIndex as this is a scrollable container, which is focusable by default.
+                  // However, we want the user's focus to move to the field element, which will hide this container.
+                  tabIndex={-1}
                   {...tid.unfocusedPlaceholderContainer}
                   css={{
-                    ...Css.df.asc.w100.maxh100.overflowAuto.$,
+                    ...Css.df.asc.w100.maxhPx(74).overflowAuto.$,
+                    ...fieldStyles.input,
+                    ...(showHover ? fieldStyles.hover : {}),
+                    ...(inputProps.disabled ? fieldStyles.disabled : {}),
                     ...(isFocused && Css.visuallyHidden.$),
                   }}
                 >

src/inputs/hooks/useGrowingTextField.tsx

@@ -27,7 +27,13 @@ export function useGrowingTextField({ inputRef, inputWrapRef, value, disabled }:
   }, [inputRef, disabled, inputWrapRef]);
 
   useLayoutEffect(() => {
-    if (disabled) return;
+    if (disabled) {
+      // reset the height property if it was flipped to disabled
+      if (inputWrapRef.current) {
+        inputWrapRef.current.style.removeProperty("height");
+      }
+      return;
+    }
 
     if (inputRef.current) {
       // Temp hack until we can figure out a better way to ensure proper measurements when rendered through a portal (i.e. Modals)
@@ -37,5 +43,5 @@ export function useGrowingTextField({ inputRef, inputWrapRef, value, disabled }:
       }
       onHeightChange();
     }
-  }, [onHeightChange, value, inputRef, disabled]);
+  }, [onHeightChange, value, inputRef, disabled, inputWrapRef]);
 }

src/inputs/internal/ComboBoxInput.tsx

@@ -17,6 +17,7 @@ import { useTreeSelectFieldProvider } from "src/inputs/TreeSelectField/TreeSelec
 import { isLeveledNode } from "src/inputs/TreeSelectField/utils";
 import { Value } from "src/inputs/Value";
 import { maybeCall } from "src/utils";
+import { useGrowingTextField } from "src/inputs/hooks/useGrowingTextField";
 
 interface ComboBoxInputProps<O, V extends Value> extends PresentationFieldProps {
   buttonProps: any;
@@ -94,11 +95,22 @@ export function ComboBoxInput<O, V extends Value>(props: ComboBoxInputProps<O, V
 
   const chipLabels = isTree ? selectedOptionsLabels || [] : selectedOptions.map((o) => getOptionLabel(o));
 
+  useGrowingTextField({
+    // This says: When using a multiselect, then only enable the growing textfield when we are focused on it.
+    // Because otherwise, we're not displaying the input element that dictates the height (we're displaying <Chips/>). This would cause incorrect calculations
+    disabled: (isMultiSelect && (!allowWrap || !isFocused)) || (!isMultiSelect && !allowWrap),
+    inputRef,
+    inputWrapRef,
+    value: inputProps.value,
+  });
+
   return (
     <TextFieldBase
       {...otherProps}
       {...multilineProps}
-      unfocusedPlaceholder={showChipSelection && <Chips compact={otherProps.compact} values={chipLabels} />}
+      unfocusedPlaceholder={
+        showChipSelection && <Chips compact={otherProps.compact} values={chipLabels} wrap={allowWrap} />
+      }
       inputRef={inputRef}
       inputWrapRef={inputWrapRef}
       errorMsg={errorMsg}

truss-config.ts

@@ -129,6 +129,7 @@ const sections: Sections = {
       width: "1px",
       padding: 0,
       whiteSpace: "nowrap",
+      opacity: 0,
     }),
   ],
   contentEmpty: () => [newMethod("contentEmpty", { content: "''" })],