feat: Create basic input table component

frontend/libs/studio-components/src/components/StudioInputTable/Cell/BaseInputCell.ts

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+import type { ForwardedRef, ForwardRefRenderFunction, PropsWithoutRef } from 'react';
+import { forwardRef } from 'react';
+import type { InputCellComponent } from '../types/InputCellComponent';
+import type { HTMLCellInputElement } from '../types/HTMLCellInputElement';
+
+export abstract class BaseInputCell<Element extends HTMLCellInputElement, Props extends {}> {
+  displayName: string;
+
+  constructor(displayName: string) {
+    this.displayName = displayName;
+  }
+
+  component(): InputCellComponent<Props, Element> {
+    const component = forwardRef<Element, Props>(this.render);
+    component.displayName = this.displayName;
+    return component;
+  }
+
+  protected abstract render(
+    props: PropsWithoutRef<Props>,
+    ref: ForwardedRef<Element>,
+  ): ReturnType<ForwardRefRenderFunction<Element, Props>>;
+}

frontend/libs/studio-components/src/components/StudioInputTable/Cell/Cell.module.css

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+.textfieldCell,
+.textareaCell {
+  padding: var(--fds-spacing-1) 0;
+  font-size: var(--studio-input-table-font-size);
+}
+
+.buttonCell {
+  text-align: center;
+}
+
+.buttonCell button {
+  display: inline-flex;
+}
+
+.textfieldCell:not(:hover) input:not(:hover):not(:active):not(:focus),
+.textareaCell:not(:hover) textarea:not(:hover):not(:active):not(:focus) {
+  background-color: transparent;
+  border-color: transparent;
+}

frontend/libs/studio-components/src/components/StudioInputTable/Cell/Cell.tsx

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+import { StudioTable } from '../../StudioTable';
+
+export const Cell = StudioTable.Cell;

frontend/libs/studio-components/src/components/StudioInputTable/Cell/CellButton.tsx

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+import { StudioTable } from '../../StudioTable';
+import type { ForwardedRef, ReactElement } from 'react';
+import React from 'react';
+import classes from './Cell.module.css';
+import type { StudioButtonProps } from '../../StudioButton';
+import { StudioButton } from '../../StudioButton';
+import { BaseInputCell } from './BaseInputCell';
+import cn from 'classnames';
+
+export type CellButtonProps = StudioButtonProps;
+
+export class CellButton extends BaseInputCell<HTMLButtonElement, CellButtonProps> {
+  render(
+    { className: givenClass, ...rest }: StudioButtonProps,
+    ref: ForwardedRef<HTMLButtonElement>,
+  ): ReactElement {
+    const className = cn(classes.buttonCell, givenClass);
+    return (
+      <StudioTable.Cell className={className}>
+        <StudioButton ref={ref} variant='secondary' {...rest} />
+      </StudioTable.Cell>
+    );
+  }
+}

frontend/libs/studio-components/src/components/StudioInputTable/Cell/CellCheckbox.tsx

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+import { StudioTable } from '../../StudioTable';
+import type { ForwardedRef, ReactElement } from 'react';
+import React from 'react';
+import type { StudioCheckboxProps } from '../../StudioCheckbox';
+import { StudioCheckbox } from '../../StudioCheckbox';
+import { BaseInputCell } from './BaseInputCell';
+
+export type CellCheckboxProps = StudioCheckboxProps;
+
+export class CellCheckbox extends BaseInputCell<HTMLInputElement, CellCheckboxProps> {
+  render(
+    { className, ...rest }: CellCheckboxProps,
+    ref: ForwardedRef<HTMLInputElement>,
+  ): ReactElement {
+    return (
+      <StudioTable.Cell className={className}>
+        <StudioCheckbox ref={ref} {...rest} />
+      </StudioTable.Cell>
+    );
+  }
+}

frontend/libs/studio-components/src/components/StudioInputTable/Cell/CellTextarea.tsx

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+import { StudioTable } from '../../StudioTable';
+import type { ForwardedRef, ReactElement } from 'react';
+import React from 'react';
+import classes from './Cell.module.css';
+import type { StudioTextareaProps } from '../../StudioTextarea';
+import { StudioTextarea } from '../../StudioTextarea';
+import { BaseInputCell } from './BaseInputCell';
+import cn from 'classnames';
+
+export type CellTextareaProps = StudioTextareaProps;
+
+export class CellTextarea extends BaseInputCell<HTMLTextAreaElement, CellTextareaProps> {
+  render(
+    { className: givenClass, ...rest }: CellTextareaProps,
+    ref: ForwardedRef<HTMLTextAreaElement>,
+  ): ReactElement {
+    const className = cn(classes.textareaCell, givenClass);
+    return (
+      <StudioTable.Cell className={className}>
+        <StudioTextarea hideLabel ref={ref} size='small' {...rest} />
+      </StudioTable.Cell>
+    );
+  }
+}

frontend/libs/studio-components/src/components/StudioInputTable/Cell/CellTextfield.tsx

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+import { StudioTable } from '../../StudioTable';
+import type { ForwardedRef, ReactElement } from 'react';
+import React from 'react';
+import type { StudioTextfieldProps } from '../../StudioTextfield';
+import { StudioTextfield } from '../../StudioTextfield';
+import classes from './Cell.module.css';
+import { BaseInputCell } from './BaseInputCell';
+import cn from 'classnames';
+
+export type CellTextfieldProps = StudioTextfieldProps;
+
+export class CellTextfield extends BaseInputCell<HTMLInputElement, CellTextfieldProps> {
+  render(
+    { className: givenClass, ...rest }: CellTextfieldProps,
+    ref: ForwardedRef<HTMLInputElement>,
+  ): ReactElement {
+    const className = cn(classes.textfieldCell, givenClass);
+    return (
+      <StudioTable.Cell className={className}>
+        <StudioTextfield hideLabel ref={ref} size='small' {...rest} />
+      </StudioTable.Cell>
+    );
+  }
+}

frontend/libs/studio-components/src/components/StudioInputTable/Cell/index.ts

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+import type { CellTextfieldProps } from './CellTextfield';
+import { CellTextfield } from './CellTextfield';
+import type { CellTextareaProps } from './CellTextarea';
+import { CellTextarea } from './CellTextarea';
+import type { CellButtonProps } from './CellButton';
+import { CellButton } from './CellButton';
+import { Cell } from './Cell';
+import type { CellCheckboxProps } from './CellCheckbox';
+import { CellCheckbox } from './CellCheckbox';
+import type { InputCellComponent } from '../types/InputCellComponent';
+
+type CellComponent = typeof Cell & {
+  Textfield: InputCellComponent<CellTextfieldProps, HTMLInputElement>;
+  Textarea: InputCellComponent<CellTextareaProps, HTMLTextAreaElement>;
+  Button: InputCellComponent<CellButtonProps, HTMLButtonElement>;
+  Checkbox: InputCellComponent<CellCheckboxProps, HTMLInputElement>;
+};
+
+export const StudioInputTableCell = Cell as CellComponent;
+
+StudioInputTableCell.Textfield = new CellTextfield('StudioInputTable.Cell.Textfield').component();
+StudioInputTableCell.Textarea = new CellTextarea('StudioInputTable.Cell.Textarea').component();
+StudioInputTableCell.Button = new CellButton('StudioInputTable.Cell.Button').component();
+StudioInputTableCell.Checkbox = new CellCheckbox('StudioInputTable.Cell.Checkbox').component();
+
+StudioInputTableCell.displayName = 'StudioInputTable.Cell';

frontend/libs/studio-components/src/components/StudioInputTable/HeaderCell/HeaderCell.tsx

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+import { StudioTable } from '../../StudioTable';
+
+export const HeaderCell = StudioTable.HeaderCell;

frontend/libs/studio-components/src/components/StudioInputTable/HeaderCell/HeaderCellCheckbox.tsx

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+import { StudioTable } from '../../StudioTable';
+import React, { forwardRef, useId } from 'react';
+import type { StudioCheckboxProps } from '../../StudioCheckbox';
+import { StudioCheckbox } from '../../StudioCheckbox';
+
+export type HeaderCellCheckboxProps = Omit<StudioCheckboxProps, 'value'> & { value?: string };
+
+export const HeaderCellCheckbox = forwardRef<HTMLInputElement, HeaderCellCheckboxProps>(
+  ({ value: givenValue, className, ...rest }, ref) => {
+    const defaultValue = useId();
+    const value = givenValue ?? defaultValue;
+    return (
+      <StudioTable.HeaderCell className={className}>
+        <StudioCheckbox ref={ref} value={value} {...rest} />
+      </StudioTable.HeaderCell>
+    );
+  },
+);
+
+HeaderCellCheckbox.displayName = 'HeaderCell.Checkbox';

frontend/libs/studio-components/src/components/StudioInputTable/HeaderCell/index.ts

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+import { HeaderCell } from './HeaderCell';
+import { HeaderCellCheckbox } from './HeaderCellCheckbox';
+
+type HeaderCellComponent = typeof HeaderCell & {
+  Checkbox: typeof HeaderCellCheckbox;
+};
+
+export const StudioInputTableHeaderCell = HeaderCell as HeaderCellComponent;
+
+StudioInputTableHeaderCell.Checkbox = HeaderCellCheckbox;
+
+StudioInputTableHeaderCell.displayName = 'StudioInputTableHeaderCell.HeaderCell';
+StudioInputTableHeaderCell.Checkbox.displayName = 'StudioInputTableHeaderCell.Checkbox';

frontend/libs/studio-components/src/components/StudioInputTable/Row/Row.tsx

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+import type { ComponentProps } from 'react';
+import React, { forwardRef } from 'react';
+import { StudioTable } from '../../StudioTable';
+
+type RowProps = ComponentProps<typeof StudioTable.Row>;
+
+export const Row = forwardRef<HTMLTableRowElement, RowProps>(({ children, ...rest }, ref) => (
+  <StudioTable.Row ref={ref} {...rest}>
+    {children}
+  </StudioTable.Row>
+));
+
+Row.displayName = 'StudioInputTable.Row';

frontend/libs/studio-components/src/components/StudioInputTable/Row/index.ts

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+import { Row } from './Row';
+
+export const StudioInputTableRow = Row;

frontend/libs/studio-components/src/components/StudioInputTable/StudioInputTable.module.css

@@ -0,0 +1,4 @@
+.inputTable {
+  --studio-input-table-font-size: --fds-font-size-f0;
+  font-size: var(--studio-input-table-font-size);
+}

frontend/libs/studio-components/src/components/StudioInputTable/StudioInputTable.stories.tsx

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+import type { ReactElement } from 'react';
+import React from 'react';
+import type { Meta, StoryFn } from '@storybook/react';
+import { TestTable } from './test-data/TestTable';
+import type { StudioInputTableProps } from './StudioInputTable';
+
+type Story = StoryFn<typeof TestTable>;
+
+export function render(props: StudioInputTableProps): ReactElement {
+  return <TestTable {...props} />;
+}
+
+const meta: Meta<Story> = {
+  title: 'Components/StudioInputTable',
+  component: TestTable,
+  render,
+};
+export default meta;

frontend/libs/studio-components/src/components/StudioInputTable/StudioInputTable.test.tsx

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+import type { ForwardedRef, ReactNode } from 'react';
+import React from 'react';
+import { StudioInputTable } from './';
+import type { RenderResult } from '@testing-library/react';
+import { render, screen } from '@testing-library/react';
+import { TestTable } from './test-data/TestTable';
+import type { StudioInputTableProps } from './StudioInputTable';
+import { expect } from '@storybook/test';
+import { testRefForwarding } from '../../test-utils/testRefForwarding';
+import { testRootClassNameAppending } from '../../test-utils/testRootClassNameAppending';
+import { testCustomAttributes } from '../../test-utils/testCustomAttributes';
+
+describe('StudioInputTable', () => {
+  it('Renders a table', () => {
+    renderStudioInputTable();
+    expect(getTable()).toBeInTheDocument();
+  });
+
+  it('Forwards the ref if provided', () => {
+    const renderTable = (ref: ForwardedRef<HTMLTableElement>) =>
+      render(
+        <StudioInputTable ref={ref}>
+          <StudioInputTable.Body>
+            <StudioInputTable.Row>
+              <StudioInputTable.Cell />
+            </StudioInputTable.Row>
+          </StudioInputTable.Body>
+        </StudioInputTable>,
+      );
+    testRefForwarding<HTMLTableElement>(renderTable, getTable);
+  });
+
+  it('Appends the given class to the table', () => {
+    testRootClassNameAppending((className) => renderStudioInputTable({ className }));
+  });
+
+  it('Applies the given props to the table', () => {
+    testCustomAttributes<HTMLTableElement>(renderStudioInputTable, getTable);
+  });
+
+  it('Renders all headers', () => {
+    render(<TestTable />);
+    const headers = screen.getAllByRole('columnheader');
+    expect(headers).toHaveLength(expectedNumberOfColumns);
+  });
+
+  it('Renders all rows', () => {
+    render(<TestTable />);
+    const rows = screen.getAllByRole('row');
+    expect(rows).toHaveLength(expectedNumberOfRows);
+  });
+
+  describe('Forwards the refs to the input elements', () => {
+    type TestCase<Element extends HTMLElement = HTMLElement> = {
+      render: (ref: ForwardedRef<Element>) => RenderResult;
+      getElement: () => Element;
+    };
+    const testLabel = 'test';
+    const testCases: {
+      checkbox: TestCase<HTMLInputElement>;
+      textfield: TestCase<HTMLInputElement>;
+      textarea: TestCase<HTMLTextAreaElement>;
+      button: TestCase<HTMLButtonElement>;
+    } = {
+      checkbox: {
+        render: (ref) =>
+          render(
+            <SingleRow>
+              <StudioInputTable.Cell.Checkbox value='test' aria-label={testLabel} ref={ref} />
+            </SingleRow>,
+          ),
+        getElement: () => getCheckbox(testLabel),
+      },
+      textfield: {
+        render: (ref) =>
+          render(
+            <SingleRow>
+              <StudioInputTable.Cell.Textfield label={testLabel} ref={ref} />
+            </SingleRow>,
+          ),
+        getElement: () => getTextbox(testLabel) as HTMLInputElement,
+      },
+      textarea: {
+        render: (ref) =>
+          render(
+            <SingleRow>
+              <StudioInputTable.Cell.Textarea label={testLabel} ref={ref} />
+            </SingleRow>,
+          ),
+        getElement: () => getTextbox(testLabel) as HTMLTextAreaElement,
+      },
+      button: {
+        render: (ref) =>
+          render(
+            <SingleRow>
+              <StudioInputTable.Cell.Button ref={ref}>{testLabel}</StudioInputTable.Cell.Button>
+            </SingleRow>,
+          ),
+        getElement: () => getButton(testLabel),
+      },
+    };
+
+    it.each(Object.keys(testCases))('%s', (key) => {
+      const { render: renderComponent, getElement } = testCases[key];
+      testRefForwarding(renderComponent, getElement);
+    });
+  });
+});
+
+const renderStudioInputTable = (props: StudioInputTableProps = {}) =>
+  render(<TestTable {...props} />);
+
+const getTable = (): HTMLTableElement => screen.getByRole('table');
+const getCheckbox = (name: string): HTMLInputElement =>
+  screen.getByRole('checkbox', { name }) as HTMLInputElement;
+const getTextbox = (name: string) => screen.getByRole('textbox', { name });
+const getButton = (name: string): HTMLButtonElement =>
+  screen.getByRole('button', { name }) as HTMLButtonElement;
+
+const expectedNumberOfColumns = 5;
+const expectedNumberOfHeaderRows = 1;
+const expectedNumberOfBodyRows = 3;
+const expectedNumberOfRows = expectedNumberOfBodyRows + expectedNumberOfHeaderRows;
+
+function SingleRow({ children }: { children: ReactNode }) {
+  return (
+    <StudioInputTable>
+      <StudioInputTable.Body>
+        <StudioInputTable.Row>{children}</StudioInputTable.Row>
+      </StudioInputTable.Body>
+    </StudioInputTable>
+  );
+}