Dropdown

In progress
Aria
RTL

Dropdowns is a custom select component that allows users to make single or multiple selections.

An option that's been selected can represent a corresponding value in forms or be used to filter/sort content.

Dropdown

Anatomy

<Dropdown>
  <Dropdown.Options>
    <Dropdown.Option>...</Dropdown.Option>
    <Dropdown.Option>...</Dropdown.Option>
    <Dropdown.Option>...</Dropdown.Option>
  </Dropdown.Options>
  <Dropdown.Trigger>...</Dropdown.Trigger>
</Dropdown>

Default

Trigger elements

Option layouts

Positions

Sizes

Datepicker

Responsive dropdown

With header and footer

With form

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States

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Multiple

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Custom

Dropdown props
Component for rendering dropdown info, mostly lists
Name Type Required Default Description
id string Yes - The id of the live component (required by LiveView for stateful components).
value any No - Value(s) of the options to be marked as selected
on_trigger event No - Event fired when trigger is clicked
on_close event No - Event fired to close Dropdown.BottomOptions
is_open boolean No - Put true here if you want dropdown to be shown by default
class css_class No - Addictional classes to be added to a dropdown
testid string No - Data-testid attribute for HTML tag
autoclose boolean No true Dropdown autoclose on click away
disabled boolean No - Disabled state for the dropdown
hook string No - Attribute phx-hook. Used for dependant components
side_values map No %{} Additional values to be passed
on_change event No - Event fired when option is selected
trigger slot Yes - Slot for triggering the open/closing state
default slot No - Content to be showable
backdrop slot No - Backdrop of Dropdown as BottomSheet on small screens, see Dropdown.Backdrop
Dropdown.Options props
Options list for the Dropdown component
Name Type Required Default Description
id string No - Id attribute for div
value any No - Value of the selected option(s)
on_change event No - On option click event, in most cases got from context
is_open boolean No - If the optionlist is open, got from context
size sm | md | lg No "md" Size of the options
class css_class No - Additional CSS classes for the div
position top-start | top | top-end | bottom-start | bottom | bottom-end | right-start | right | right-end | left-start | left | left-end No - Specifies the position of the dropdown
values map No - Additional values to be passed
titles list No [] List of the options. Used when no option slot is given
option_module atom No Moon.Design.Dropdown.Option Option module
testid string No - Data-testid attribute for div
option slot No - -
default slot No - -
header slot No - -
footer slot No - -
Dropdown.Trigger props
Element that triggers Dropdown component, renders with no HTML tag
Name Type Required Default Description
title string No - Title to be shown when no defaul slot given
is_open boolean No - If the trigger is open. Should be taken from context
on_click event No - Event that fired when trigger is clicked
testid string No - Data-testid attribute for HTML tag
class css_class No - Additional Tailwind classes
disabled boolean No - If the item should be marked as disabled
default slot No - Inner content of the component
Dropdown.Option props
Single oprion for the dropdown component. Renders as a button
Name Type Required Default Description
id string No - Id attribute for buttons
testid string No - Data-testid attribute for button
title string No - Title to be shown when no default slot is given
class css_class No - Additional CSS classes for the button tag
disabled boolean No - If the button is disabled
on_click event No - On click event, in most cases got from context
value any No - Value of the option, in most cases got from context
is_selected boolean No - If the option is selected, in most cases got from context
size sm | md | lg No - Text size & paddings for the option. Is set by Dropdown.Options in most cases
values map No - Additional values to be passed
default slot No - Inner content of the option
Dropdown.BottomOptions props
Options list for the Dropdown component
Name Type Required Default Description
id string No - Id attribute for div
value any No - Value of the selected option(s)
on_change event No - On option click event, in most cases got from context
on_close event No - Click event, in most cases got from context
is_open boolean No - If the optionlist is open, got from context
size sm | md | lg No "md" Size of the options
class css_class No - Additional CSS classes for the div
values map No - Additional values to be passed
titles list No [] List of the options. Used when no
option_module atom No Moon.Design.Dropdown.Option -
testid string No - Data-testid attribute for div
option slot No - -
default slot No - -
Dropdown.Backdrop props
Name Type Required Default Description
id string No - Id attribute for html tag
testid string No - Data-testid attribute for html tag
class css_class No - Additional CSS classes for the html tag
is_open boolean No - If the optionlist is open, got from context
Dropdown.Header props
Optional dropdown header
Name Type Required Default Description
id string No - Id attribute for HTML tag
testid string No - Data-testid attribute for HTML tag
class css_class No - Additional Taiilwind classes
default slot No - Inner content of the component
Dropdown.Footer props
Optional dropdown header
Name Type Required Default Description
id string No - Id attribute for HTML tag
testid string No - Data-testid attribute for HTML tag
class css_class No - Additional Taiilwind classes
default slot No - Inner content of the component
Dropdown.CustomOption props
Single oprion for the dropdown component. Renders as a button
Name Type Required Default Description
id string No - Id attribute for buttons
testid string No - Data-testid attribute for button
title string No - Title to be shown when no default slot is given
class css_class No - Additional CSS classes for the button tag
disabled boolean No - If the button is disabled
on_click event No - On click event, in most cases got from context
value any No - Value of the option, in most cases got from context
is_selected boolean No - If the option is selected, in most cases got from context
has_bottom_divider boolean No false Adds section divider after the option
values map No - Additional values to be passed
default slot No - Inner content of the option
Form.Dropdown props
Fully styled select component for the forms
Name Type Required Default Description
id string No - Id to be given to the select tag
options list Yes - ... format: [%{key: shown_label, value: option_value, disabled: bool}], diisabled is optional
field atom No - Name of the field, usually should be taken from context
form form No - Form info, usually should be taken from context
value any No - Selected option(s) value - do not use it inside the form, just for away-from-form components
disabled boolean No - Well, disabled
size sm | md | lg No "md" Common moon size property
class css_class No - Additional classes for the <select> tag
prompt string No - Some prompt to be shown on empty value
testid string No - Data-testid attribute value
error boolean No - Some additional styling will be set to indicate field is iinvalid
is_multiple boolean No - If field does support multiselect, `multiple` attribute for select tag in HTML terms
is_open boolean No - Should dropdown be open
default slot No - Option for custom stylings - use it to show icons or anything else
trigger slot No - Trigger element for the dropdown, default is Dropdown.Select
option slot No - Slot used for rendering single option. option[:key] will be used if not given
Dropdown.Select props
Element that triggers Dropdown component, renders as a button
Name Type Required Default Description
id string No - Id attribute for html tag
testid string No - Data-testid attribute for html tag
class css_class No - Additional CSS classes for the html tag
prompt string No "..." Text to be shown when no value given
value string No - Value to be shown
badge integer No - Badge to show selected items count or smth else
error boolean No - Some additional styling will be set to indicate field is iinvalid
is_open boolean No - If the open indicator is active or not
size sm | md | lg No - Site of the select
disabled boolean No - If the item should be marked as disabled
on_click event No - Event that fired when trigger is clicked
default slot No - Content of the button