✨ Ny komponent: Combobox (#1868)

✨Ny komponent: Combobox 🎉 

Combobox er en ny komponent som kombinerer tekstfelt og nedtrekksliste. 
- Velg mellom predefinerte alternativer i nedtrekkslisten
- Bruk input-feltet som filter for alternativene i nedtrekkslisten.
- Legg inn nye svar, hvis svaret du ikke finnes i listen
- Velg mellom SingleSelect eller MultiSelect-versjon for henholdsvis ett og flere valg. 
- Autocomplete svar i inputfeltet når man velger SingleSelect

Dokumentasjonen finner du på https://aksel.nav.no/komponenter/core/combobox

.changeset/spotty-onions-cough.md

@@ -0,0 +1,7 @@
+---
+"@navikt/ds-css": minor
+"@navikt/ds-react": minor
+"aksel.nav.no": minor
+---
+
+Combobox

@navikt/core/css/config/_mappings.js

@@ -54,6 +54,11 @@ const StyleMappings = {
     { component: "Checkbox", main: formCss, dependencies: [typoCss] },
     { component: "CheckboxGroup", main: formCss, dependencies: [typoCss] },
     { component: "Chips", main: "chips.css", dependencies: [typoCss] },
+    {
+      component: "UNSAFE_Combobox",
+      main: "combobox.css",
+      dependencies: [typoCss],
+    },
     {
       component: "ConfirmationPanel",
       main: formCss,

@navikt/core/css/form/combobox.css

@@ -0,0 +1,287 @@
+.navds-combobox__wrapper {
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+  position: relative;
+}
+
+.navds-combobox__wrapper-inner {
+  position: relative;
+  display: flex;
+  flex-direction: row;
+  justify-content: space-between;
+  width: 100%;
+  border: 1px solid black;
+}
+
+.navds-combobox__wrapper-inner > :first-child {
+  flex: 2;
+}
+
+.navds-combobox__wrapper-inner > :last-child {
+  display: flex;
+  flex-flow: row nowrap;
+}
+
+.navds-form-field--small .navds-combobox__wrapper-inner {
+  padding: var(--a-spacing-1) calc(var(--a-spacing-3) / 2);
+}
+
+.navds-combobox__wrapper-inner:hover {
+  cursor: text;
+}
+
+.navds-combobox__selected-options {
+  gap: var(--a-spacing-2);
+}
+
+.navds-combobox__selected-options > li {
+  margin: auto 0;
+  border-radius: var(--a-border-radius-full);
+}
+
+.navds-combobox__selected-options > li:last-of-type {
+  display: flex;
+  flex: 1;
+}
+
+.navds-combobox__selected-options--no-bg {
+  font-family: inherit;
+  font-size: var(--a-font-size-large);
+  font-weight: var(--a-font-weight-regular);
+  letter-spacing: 0;
+  line-height: var(--a-font-line-height-large);
+  margin: 0;
+  padding-left: calc(0.5rem - 4px);
+}
+
+.navds-combobox__input-wrapper {
+  width: 100%;
+}
+
+.navds-combobox__input {
+  z-index: 1;
+  flex: 1;
+  border: none;
+  padding: 0;
+  margin: 0;
+  min-width: 10ch;
+  width: 100%;
+}
+
+.navds-combobox__input:focus-visible {
+  outline: none;
+  border: none;
+  box-shadow: none;
+}
+
+.navds-combobox__wrapper-inner:has(.navds-combobox__input:focus-visible) {
+  box-shadow: 0 0 0 1px var(--a-surface-default) inset, var(--a-shadow-focus);
+  box-shadow: var(--a-shadow-focus);
+}
+
+.navds-combobox__wrapper-inner:has(.navds-combobox__input:focus-visible).navds-combobox__wrapper-inner--virtually-unfocused {
+  box-shadow: none;
+}
+
+@supports not selector(:focus-visible) {
+  .navds-combobox__input:focus-visible {
+    outline: none;
+    border: none;
+    box-shadow: none;
+  }
+
+  .navds-combobox__wrapper-inner:has(.navds-combobox__input:focus) {
+    box-shadow: 0 0 0 1px var(--a-surface-default) inset, var(--a-shadow-focus);
+    box-shadow: var(--a-shadow-focus);
+  }
+
+  .navds-combobox__wrapper-inner:has(.navds-combobox__input:focus).navds-combobox__wrapper-inner--virtually-unfocused {
+    box-shadow: none;
+  }
+}
+
+.navds-combobox__button-clear {
+  border-radius: var(--a-border-radius-medium);
+  color: var(--ac-combobox-clear-icon, var(--a-text-subtle));
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  cursor: pointer;
+  background: none;
+  border: none;
+  font-size: 1rem;
+  padding: 0;
+}
+
+.navds-combobox__button-clear svg {
+  width: 1.5rem;
+  height: 1.5rem;
+}
+
+.navds-combobox__input::-webkit-search-cancel-button {
+  display: none;
+}
+
+.navds-combobox__button-toggle-list {
+  border-radius: var(--a-border-radius-medium);
+  color: var(--a-text-default);
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  cursor: pointer;
+  background: none;
+  border: none;
+  font-size: 1rem;
+  padding: 0;
+}
+
+.navds-combobox__button-clear:active:hover,
+.navds-combobox__button-toggle-list:active:hover {
+  color: var(--ac-combobox-clear-icon-active, var(--a-text-action));
+}
+
+.navds-combobox__button-clear:hover,
+.navds-combobox__button-toggle-list:hover {
+  color: var(--ac-combobox-clear-icon-hover, var(--a-text-action-selected));
+}
+
+.navds-combobox__button-toggle-list:focus-visible {
+  box-shadow: 0 0 0 1px var(--a-surface-default) inset, var(--a-shadow-focus);
+  box-shadow: var(--a-shadow-focus);
+  outline: none;
+}
+
+@supports not selector(:focus-visible) {
+  .navds-combobox__button-toggle-list:focus {
+    box-shadow: 0 0 0 1px var(--a-surface-default) inset, var(--a-shadow-focus);
+    box-shadow: var(--a-shadow-focus);
+    outline: none;
+  }
+}
+
+.navds-combobox__button-toggle-list svg {
+  width: 1.5rem;
+  height: 1.5rem;
+  pointer-events: none;
+}
+
+.navds-form-field--small .navds-combobox__button-toggle-list svg,
+.navds-form-field--small .navds-combobox__button-clear svg {
+  width: 1.25rem;
+  height: 1.25rem;
+}
+
+/* dropdown list */
+
+.navds-combobox__list {
+  max-height: 290px;
+  overflow-y: auto;
+  position: absolute;
+  left: 0;
+  right: 0;
+  z-index: 9999;
+  top: calc(100% + var(--a-spacing-2));
+  list-style: none;
+  margin: 0;
+  border: 1px solid var(--ac-combobox-list-border-color, var(--a-border-divider));
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  padding: 0;
+  box-shadow: var(--a-shadow-small);
+  border-radius: 4px;
+  gap: 4px 0;
+  background-color: var(--ac-combobox-list-bg, var(--a-surface-default));
+  color: var(--ac-combobox-list-text, var(--a-text-default));
+}
+
+.navds-combobox__list--closed {
+  display: none;
+}
+
+.navds-combobox__list svg {
+  height: 1.5rem;
+  width: 1.5rem;
+}
+
+.navds-combobox__list-item,
+.navds-combobox__list-item__no-options,
+.navds-combobox__list-item__new-option {
+  display: flex;
+  flex-direction: row;
+  justify-content: space-between;
+  align-items: center;
+  padding: var(--a-spacing-3);
+  width: 100%;
+  background-color: var(--ac-combobox-list-item-bg, var(--a-surface-default));
+}
+
+.navds-form-field--small .navds-combobox__list-item,
+.navds-form-field--small .navds-combobox__list-item__no-options,
+.navds-form-field--small .navds-combobox__list-item__new-option {
+  padding: calc(var(--a-spacing-3) / 2) var(--a-spacing-2);
+}
+
+.navds-combobox__list-item--loading {
+  display: flex;
+  justify-content: center;
+  padding: var(--a-spacing-3);
+  background-color: var(--ac-combobox-list-item-loading-bg, var(--a-surface-default));
+  width: 100%;
+}
+
+.navds-combobox__list-item--focus,
+.navds-combobox__list-item:hover {
+  background-color: var(--ac-combobox-list-item-hover-bg, var(--a-surface-hover));
+  cursor: pointer;
+  border-left: 4px solid var(--ac-combobox-list-item-hover-border-left, var(--a-border-strong));
+  padding-left: calc(var(--a-spacing-3) - 4px);
+}
+
+.navds-combobox__list-item--selected {
+  background-color: var(--ac-combobox-list-item-selected-bg, var(--a-surface-selected));
+}
+
+.navds-combobox__list-item--selected.navds-combobox__list-item--focus,
+.navds-combobox__list-item--selected:hover {
+  background-color: var(--ac-combobox-list-item-selected-hover-bg, var(--a-surface-action-subtle-hover));
+  border-left: 4px solid var(--ac-combobox-list-item-selected-hover-border-left, var(--a-border-focus));
+  padding-left: calc(var(--a-spacing-3) - 4px);
+}
+
+.navds-combobox__list-item__new-option {
+  border-bottom: 1px solid var(--a-border-divider);
+  background: var(--a-surface-neutral-subtle);
+  cursor: pointer;
+  justify-content: flex-start;
+  gap: 0.25rem;
+}
+
+.navds-combobox__list-item__new-option:hover {
+  border-bottom: 1px solid var(--a-border-divider);
+  background: var(--a-surface-neutral-subtle-hover);
+}
+
+.navds-combobox__list-item__new-option--focus {
+  box-shadow: var(--a-shadow-focus) inset, var(--a-border-action) 0 0 0 5px inset;
+  border-radius: 3px;
+}
+
+/* Mobile */
+
+@media (max-width: 479px) {
+  .navds-combobox__button-toggle-list {
+    right: 0.5rem;
+  }
+
+  /* add bigger click area for input */
+  .navds-combobox__input {
+    min-width: min-content;
+    padding: 0.75rem 0;
+  }
+
+  .navds-combobox__selected-options {
+    gap: var(--a-spacing-1);
+  }
+}

@navikt/core/css/form/index.css

@@ -11,3 +11,4 @@
 @import "text-field.css";
 @import "textarea.css";
 @import "search.css";
+@import "combobox.css";

@navikt/core/css/tokens.json

@@ -372,6 +372,21 @@
     "--ac-search-button-focus-active-border": "--a-surface-default",
     "--ac-search-error-border": "--a-border-danger"
   },
+  "combobox": {
+    "--ac-combobox-clear-icon": "--a-text-subtle",
+    "--ac-combobox-clear-icon-hover": "--a-text-action-selected",
+    "--ac-combobox-clear-icon-active": "--a-text-action",
+    "--ac-combobox-list-bg": "--a-surface-default",
+    "--ac-combobox-list-text": "--a-text-default",
+    "--ac-combobox-list-border-color": "--a-border-divider",
+    "--ac-combobox-list-item-bg": "--a-surface-default",
+    "--ac-combobox-list-item-hover-bg": "--a-surface-hover",
+    "--ac-combobox-list-item-selected-bg": "--a-surface-default",
+    "--ac-combobox-list-item-selected-hover-bg": "--a-surface-action-subtle-hover",
+    "--ac-combobox-list-item-loading-bg": "--a-surface-default",
+    "--ac-combobox-list-item-hover-border-left": "--a-border-strong",
+    "--ac-combobox-list-item-selected-hover-border-left": "--a-border-focus"
+  },
   "select": {
     "--ac-select-bg": "--a-surface-default",
     "--ac-select-text": "--a-text-default",

@navikt/core/react/src/chips/Chips.tsx

@@ -70,7 +70,7 @@ export const Chips: ChipsComponent = forwardRef<HTMLUListElement, ChipsProps>(
         })}
       >
         {React.Children.map(children, (chip, index) => {
-          return <li key={index + (chip?.toString() ?? "")}>{chip}</li>;
+          return <li key={chip?.toString() || index}>{chip}</li>;
         })}
       </ul>
     );

@navikt/core/react/src/form/combobox/ClearButton.tsx

@@ -0,0 +1,29 @@
+import React from "react";
+import { XMarkIcon } from "@navikt/aksel-icons";
+
+interface ClearButtonProps extends React.HTMLAttributes<HTMLButtonElement> {
+  handleClear: (event: any) => void;
+  clearButtonLabel?: string;
+}
+
+export const ClearButton: React.FC<ClearButtonProps> = ({
+  handleClear,
+  clearButtonLabel,
+  ...rest
+}) => {
+  return (
+    <button
+      type="button"
+      onClick={handleClear}
+      className="navds-combobox__button-clear"
+      {...rest}
+    >
+      <span className="navds-sr-only">
+        {clearButtonLabel ? clearButtonLabel : "Tøm"}
+      </span>
+      <XMarkIcon aria-hidden />
+    </button>
+  );
+};
+
+export default ClearButton;