[Glitch] Add components RadioButton and Fieldset

Port 29e5532870 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/components/form_fields/checkbox.module.scss

@@ -1,5 +1,6 @@
 .checkbox {
   --size: 16px;
+  --border-width: 1px;
 
   appearance: none;
   box-sizing: border-box;
@@ -10,18 +11,26 @@
   height: var(--size);
   vertical-align: top;
   border-radius: calc(var(--size) / 4);
-  border: 1px solid var(--color-border-primary);
+  border: var(--border-width) solid var(--color-border-primary);
   background-color: var(--color-bg-primary);
   transition: 0.15s ease-out;
   transition-property: background-color, border-color;
   cursor: pointer;
 
-  @supports not (appearance: none) {
-    accent-color: var(--color-bg-brand-base);
+  /* Increase clickable area, prevents misclicks and covers gap between control and label */
+  &::after {
+    content: '';
+    position: absolute;
+
+    --spread: calc(var(--border-width) + var(--form-field-label-gap, 8px));
+
+    inset-inline: calc(-1 * var(--spread));
+    inset-block: calc(-0.75 * var(--spread));
   }
 
   &:disabled {
-    background: var(--color-bg-secondary);
+    background: var(--color-bg-tertiary);
+    border: none;
     cursor: not-allowed;
   }
 
@@ -53,9 +62,12 @@
     border-color: var(--color-bg-brand-base);
 
     &:disabled {
-      border-color: var(--color-bg-disabled);
-      background: var(--color-bg-disabled);
-      color: var(--color-text-on-disabled);
+      border: none;
+      background-color: var(--color-text-disabled);
+
+      &::before {
+        background-color: var(--color-bg-tertiary);
+      }
     }
 
     &::before {

app/javascript/flavours/glitch/components/form_fields/checkbox_field.stories.tsx

@@ -1,6 +1,7 @@
 import type { Meta, StoryObj } from '@storybook/react-vite';
 
 import { Checkbox, CheckboxField } from './checkbox_field';
+import { Fieldset } from './fieldset';
 
 const meta = {
   title: 'Components/Form Fields/CheckboxField',
@@ -29,6 +30,37 @@ export const WithoutHint: Story = {
   },
 };
 
+export const InFieldset: Story = {
+  render() {
+    return (
+      <Fieldset
+        legend='Choose your options'
+        hint='This is a description of this set of options'
+      >
+        <CheckboxField label='Option 1' />
+        <CheckboxField label='Option 2' />
+        <CheckboxField label='Option 3' defaultChecked />
+      </Fieldset>
+    );
+  },
+};
+
+export const InFieldsetHorizontal: Story = {
+  render() {
+    return (
+      <Fieldset
+        legend='Choose your options'
+        hint='This is a description of this set of options'
+        layout='horizontal'
+      >
+        <CheckboxField label='Option 1' />
+        <CheckboxField label='Option 2' />
+        <CheckboxField label='Option 3' defaultChecked />
+      </Fieldset>
+    );
+  },
+};
+
 export const Required: Story = {
   args: {
     required: true,
@@ -82,6 +114,6 @@ export const Small: Story = {
 
 export const Large: Story = {
   args: {
-    size: 64,
+    size: 36,
   },
 };

app/javascript/flavours/glitch/components/form_fields/fieldset.module.scss

@@ -0,0 +1,19 @@
+.fieldset {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  color: var(--color-text-primary);
+  font-size: 15px;
+}
+
+.fieldsWrapper {
+  display: flex;
+  flex-direction: column;
+  row-gap: 8px;
+
+  &[data-layout='horizontal'] {
+    flex-direction: row;
+    flex-wrap: wrap;
+    column-gap: 24px;
+  }
+}

app/javascript/flavours/glitch/components/form_fields/fieldset.tsx

@@ -0,0 +1,64 @@
+/* eslint-disable @typescript-eslint/prefer-nullish-coalescing */
+
+import type { ReactNode, FC } from 'react';
+import { createContext, useId } from 'react';
+
+import classes from './fieldset.module.scss';
+import formFieldWrapperClasses from './form_field_wrapper.module.scss';
+
+interface FieldsetProps {
+  legend: ReactNode;
+  hint?: ReactNode;
+  name?: string;
+  hasError?: boolean;
+  layout?: 'vertical' | 'horizontal';
+  children: ReactNode;
+}
+
+export const FieldsetNameContext = createContext<string | undefined>(undefined);
+
+/**
+ * A fieldset suitable for wrapping a group of checkboxes,
+ * radio buttons, or other grouped form controls.
+ */
+
+export const Fieldset: FC<FieldsetProps> = ({
+  legend,
+  hint,
+  name,
+  hasError,
+  layout,
+  children,
+}) => {
+  const uniqueId = useId();
+  const labelId = `${uniqueId}-label`;
+  const hintId = `${uniqueId}-hint`;
+  const fieldsetName = name || `${uniqueId}-fieldset-name`;
+  const hasHint = !!hint;
+
+  return (
+    <fieldset
+      className={classes.fieldset}
+      data-has-error={hasError}
+      aria-labelledby={labelId}
+      aria-describedby={hintId}
+    >
+      <div className={formFieldWrapperClasses.labelWrapper}>
+        <div id={labelId} className={formFieldWrapperClasses.label}>
+          {legend}
+        </div>
+        {hasHint && (
+          <p id={hintId} className={formFieldWrapperClasses.hint}>
+            {hint}
+          </p>
+        )}
+      </div>
+
+      <div className={classes.fieldsWrapper} data-layout={layout}>
+        <FieldsetNameContext.Provider value={fieldsetName}>
+          {children}
+        </FieldsetNameContext.Provider>
+      </div>
+    </fieldset>
+  );
+};

app/javascript/flavours/glitch/components/form_fields/form_field_wrapper.module.scss

@@ -1,13 +1,16 @@
 .wrapper {
+  --form-field-label-gap: 6px;
+
   display: flex;
   flex-direction: column;
-  gap: 6px;
+  gap: var(--form-field-label-gap);
   color: var(--color-text-primary);
   font-size: 15px;
 
   &[data-input-placement^='inline'] {
     flex-direction: row;
-    gap: 8px;
+
+    --form-field-label-gap: 8px;
   }
 
   &[data-input-placement='inline-start'] {
@@ -29,6 +32,10 @@
 .label {
   font-weight: 500;
 
+  &[data-has-parent-fieldset='true'] {
+    font-weight: normal;
+  }
+
   [data-has-error='true'] & {
     color: var(--color-text-error);
   }

app/javascript/flavours/glitch/components/form_fields/form_field_wrapper.tsx

@@ -1,10 +1,11 @@
 /* eslint-disable @typescript-eslint/prefer-nullish-coalescing */
 
 import type { ReactNode, FC } from 'react';
-import { useId } from 'react';
+import { useContext, useId } from 'react';
 
 import { FormattedMessage } from 'react-intl';
 
+import { FieldsetNameContext } from './fieldset';
 import classes from './form_field_wrapper.module.scss';
 
 interface InputProps {
@@ -51,6 +52,8 @@ export const FormFieldWrapper: FC<FieldWrapperProps> = ({
   const hintId = `${inputIdProp || uniqueId}-hint`;
   const hasHint = !!hint;
 
+  const hasParentFieldset = !!useContext(FieldsetNameContext);
+
   const inputProps: InputProps = {
     required,
     id: inputId,
@@ -72,7 +75,11 @@ export const FormFieldWrapper: FC<FieldWrapperProps> = ({
       {inputPlacement === 'inline-start' && input}
 
       <div className={classes.labelWrapper}>
-        <label htmlFor={inputId} className={classes.label}>
+        <label
+          htmlFor={inputId}
+          className={classes.label}
+          data-has-parent-fieldset={hasParentFieldset}
+        >
           {label}
           {required !== undefined && <RequiredMark required={required} />}
         </label>

app/javascript/flavours/glitch/components/form_fields/radio_button.module.scss

@@ -0,0 +1,51 @@
+.radioButton {
+  --size: 16px;
+  --border-width: calc(var(--size) / 4);
+
+  appearance: none;
+  box-sizing: border-box;
+  position: relative;
+  display: inline-flex;
+  margin: 0;
+  width: var(--size);
+  height: var(--size);
+  vertical-align: top;
+  border-radius: 100%;
+  border: var(--border-width) solid transparent;
+  box-shadow: 0 0 0 1px var(--color-border-primary);
+  background-color: var(--color-bg-primary);
+  transition: 0.15s ease-out;
+  transition-property: border-color;
+  cursor: pointer;
+
+  /* Increase clickable area, prevents misclicks and covers gap between control and label */
+  &::after {
+    content: '';
+    position: absolute;
+
+    --spread: calc(var(--border-width) + var(--form-field-label-gap, 8px));
+
+    inset-inline: calc(-1 * var(--spread));
+    inset-block: calc(-0.75 * var(--spread));
+  }
+
+  &:disabled {
+    background: var(--color-bg-tertiary);
+    box-shadow: none;
+    cursor: not-allowed;
+  }
+
+  &:checked {
+    border-color: var(--color-bg-brand-base);
+    box-shadow: none;
+
+    &:disabled {
+      border-color: var(--color-text-disabled);
+    }
+  }
+
+  &:focus-visible {
+    outline: var(--outline-focus-default);
+    outline-offset: 2px;
+  }
+}

app/javascript/flavours/glitch/components/form_fields/radio_button_field.stories.tsx

@@ -0,0 +1,108 @@
+import type { Meta, StoryObj } from '@storybook/react-vite';
+
+import { Fieldset } from './fieldset';
+import { RadioButton, RadioButtonField } from './radio_button_field';
+
+const meta = {
+  title: 'Components/Form Fields/RadioButtonField',
+  component: RadioButtonField,
+  args: {
+    label: 'Label',
+    hint: 'This is a description of this form field',
+    checked: false,
+    disabled: false,
+  },
+  argTypes: {
+    size: {
+      control: { type: 'range', min: 10, max: 64, step: 1 },
+    },
+  },
+} satisfies Meta<typeof RadioButtonField>;
+
+export default meta;
+
+type Story = StoryObj<typeof meta>;
+
+export const Simple: Story = {};
+
+export const WithoutHint: Story = {
+  args: {
+    hint: undefined,
+  },
+};
+
+export const InFieldset: Story = {
+  render() {
+    return (
+      <Fieldset
+        legend='Choose one option'
+        hint='This is a description of this set of options'
+      >
+        <RadioButtonField label='Option 1' defaultChecked />
+        <RadioButtonField label='Option 2' />
+        <RadioButtonField label='Option 3' />
+      </Fieldset>
+    );
+  },
+};
+
+export const InFieldsetHorizontal: Story = {
+  render() {
+    return (
+      <Fieldset
+        legend='Choose one option'
+        hint='This is a description of this set of options'
+        layout='horizontal'
+      >
+        <RadioButtonField label='Option 1' defaultChecked />
+        <RadioButtonField label='Option 2' />
+        <RadioButtonField label='Option 3' />
+      </Fieldset>
+    );
+  },
+};
+
+export const Optional: Story = {
+  args: {
+    required: false,
+  },
+};
+
+export const WithError: Story = {
+  args: {
+    required: false,
+    hasError: true,
+  },
+};
+
+export const DisabledChecked: Story = {
+  args: {
+    disabled: true,
+    checked: true,
+  },
+};
+
+export const DisabledUnchecked: Story = {
+  args: {
+    disabled: true,
+    checked: false,
+  },
+};
+
+export const Plain: Story = {
+  render(props) {
+    return <RadioButton {...props} />;
+  },
+};
+
+export const Small: Story = {
+  args: {
+    size: 14,
+  },
+};
+
+export const Large: Story = {
+  args: {
+    size: 36,
+  },
+};

app/javascript/flavours/glitch/components/form_fields/radio_button_field.tsx

@@ -0,0 +1,56 @@
+/* eslint-disable @typescript-eslint/prefer-nullish-coalescing */
+
+import type { ComponentPropsWithoutRef, CSSProperties } from 'react';
+import { forwardRef, useContext } from 'react';
+
+import { FieldsetNameContext } from './fieldset';
+import type { CommonFieldWrapperProps } from './form_field_wrapper';
+import { FormFieldWrapper } from './form_field_wrapper';
+import classes from './radio_button.module.scss';
+
+type Props = Omit<ComponentPropsWithoutRef<'input'>, 'type'> & {
+  size?: number;
+};
+
+export const RadioButtonField = forwardRef<
+  HTMLInputElement,
+  Props & CommonFieldWrapperProps
+>(({ id, label, hint, hasError, required, ...otherProps }, ref) => {
+  const fieldsetName = useContext(FieldsetNameContext);
+
+  return (
+    <FormFieldWrapper
+      label={label}
+      hint={hint}
+      required={required}
+      hasError={hasError}
+      inputId={id}
+      inputPlacement='inline-start'
+    >
+      {(inputProps) => (
+        <RadioButton
+          {...otherProps}
+          {...inputProps}
+          name={otherProps.name || fieldsetName}
+          ref={ref}
+        />
+      )}
+    </FormFieldWrapper>
+  );
+});
+
+RadioButtonField.displayName = 'RadioButtonField';
+
+export const RadioButton = forwardRef<HTMLInputElement, Props>(
+  ({ className, size, ...otherProps }, ref) => (
+    <input
+      {...otherProps}
+      type='radio'
+      className={classes.radioButton}
+      style={size ? ({ '--size': `${size}px` } as CSSProperties) : undefined}
+      ref={ref}
+    />
+  ),
+);
+
+RadioButton.displayName = 'RadioButton';