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Dropdownmenu

A Dropdown Menu is a menu that offers a list of options that a user can select from. They are typically positioned near a button that will control their appearance and disappearance.

A Dropdown Menu is composed of a menu.root, a menu.trigger and a menu.content. The menu.trigger is the element that the user interacts with to open the menu. It wraps the element that will open the dropdown menu. The menu.content is the component that pops out when the dropdown menu is open.

The menu.item contains the actual dropdown menu items and sits under the menu.content. The shortcut prop is an optional shortcut command displayed next to the item text.

The menu.sub contains all the parts of a submenu. There is a menu.sub_trigger, which is an item that opens a submenu. It must be rendered inside a menu.sub component. The menu.sub_component is the component that pops out when a submenu is open. It must also be rendered inside a menu.sub component.

The menu.separator is used to visually separate items in a dropdown menu.

rx.menu.root(
    rx.menu.trigger(
        rx.button("Options", variant="soft"),
    ),
    rx.menu.content(
        rx.menu.item("Edit", shortcut="⌘ E"),
        rx.menu.item("Duplicate", shortcut="⌘ D"),
        rx.menu.separator(),
        rx.menu.item("Archive", shortcut="⌘ N"),
        rx.menu.sub(
            rx.menu.sub_trigger("More"),
            rx.menu.sub_content(
                rx.menu.item("Move to project…"),
                rx.menu.item("Move to folder…"),
                rx.menu.separator(),
                rx.menu.item("Advanced options…"),
            ),
        ),
        rx.menu.separator(),
        rx.menu.item("Share"),
        rx.menu.item("Add to favorites"),
        rx.menu.separator(),
        rx.menu.item("Delete", shortcut="⌘ ⌫", color="red"),
    ),
)
rx.flex(
    rx.menu.root(
        rx.menu.trigger(
            rx.button("Options", variant="soft", size="2"),
        ),
        rx.menu.content(
            rx.menu.item("Edit", shortcut="⌘ E"),
            rx.menu.item("Duplicate", shortcut="⌘ D"),
            rx.menu.separator(),
            rx.menu.item("Archive", shortcut="⌘ N"),
            rx.menu.separator(),
            rx.menu.item(
                "Delete", shortcut="⌘ ⌫", color="red"
            ),
            size="2",
        ),
    ),
    rx.menu.root(
        rx.menu.trigger(
            rx.button("Options", variant="soft", size="1"),
        ),
        rx.menu.content(
            rx.menu.item("Edit", shortcut="⌘ E"),
            rx.menu.item("Duplicate", shortcut="⌘ D"),
            rx.menu.separator(),
            rx.menu.item("Archive", shortcut="⌘ N"),
            rx.menu.separator(),
            rx.menu.item(
                "Delete", shortcut="⌘ ⌫", color="red"
            ),
            size="1",
        ),
    ),
    spacing="3",
    align="center",
)

The on_open_change event, from the menu.root, is called when the open state of the dropdown menu changes. It is used in conjunction with the open prop, which is passed to the event handler.

Number of times Dropdown Menu opened or closed: 0

Dropdown Menu open: false

class DropdownMenuState(rx.State):
    num_opens: int = 0
    opened: bool = False

    def count_opens(self, value: bool):
        self.opened = value
        self.num_opens += 1


def dropdown_menu_example():
    return rx.flex(
        rx.heading(
            f"Number of times Dropdown Menu opened or closed: {DropdownMenuState.num_opens}"
        ),
        rx.heading(
            f"Dropdown Menu open: {DropdownMenuState.opened}"
        ),
        rx.menu.root(
            rx.menu.trigger(
                rx.button(
                    "Options", variant="soft", size="2"
                ),
            ),
            rx.menu.content(
                rx.menu.item("Edit", shortcut="⌘ E"),
                rx.menu.item("Duplicate", shortcut="⌘ D"),
                rx.menu.separator(),
                rx.menu.item("Archive", shortcut="⌘ N"),
                rx.menu.separator(),
                rx.menu.item(
                    "Delete", shortcut="⌘ ⌫", color="red"
                ),
            ),
            on_open_change=DropdownMenuState.count_opens,
        ),
        direction="column",
        spacing="3",
    )

The Dropdown Menu Root Component.

PropTypeDescriptionValues
default_openbool

The open state of the dropdown menu when it is initially rendered. Use when you do not need to control its open state.

openbool

The controlled open state of the dropdown menu. Must be used in conjunction with onOpenChange.

modalbool

The modality of the dropdown menu. When set to true, interaction with outside elements will be disabled and only menu content will be visible to screen readers. Defaults to True.

dirLiteral

The reading direction of submenus when applicable. If omitted, inherits globally from DirectionProvider or assumes LTR (left-to-right) reading mode.

Event Triggers

TriggerDescription
on_open_change

Fired when the open state changes.

The Dropdown Menu Content component that pops out when the dropdown menu is open.

PropTypeDescriptionValues
sizeUnion

Dropdown Menu Content size "1" - "2"

variantLiteral

Variant of Dropdown Menu Content: "solid" | "soft"

color_schemeLiteral

Override theme color for Dropdown Menu Content

high_contrastbool

Renders the Dropdown Menu Content in higher contrast

as_childbool

Change the default rendered element for the one passed as a child, merging their props and behavior. Defaults to False.

loopbool

When True, keyboard navigation will loop from last item to first, and vice versa. Defaults to False.

force_mountbool

Used to force mounting when more control is needed. Useful when controlling animation with React animation libraries.

sideLiteral

The preferred side of the trigger to render against when open. Will be reversed when collisions occur and avoid_collisions is enabled.The position of the tooltip. Defaults to "top".

side_offsetUnion

The distance in pixels from the trigger. Defaults to 0.

alignLiteral

The preferred alignment against the trigger. May change when collisions occur. Defaults to "center".

align_offsetUnion

An offset in pixels from the "start" or "end" alignment options.

avoid_collisionsbool

When true, overrides the side and align preferences to prevent collisions with boundary edges. Defaults to True.

collision_paddingUnion

The distance in pixels from the boundary edges where collision detection should occur. Accepts a number (same for all sides), or a partial padding object, for example: { "top": 20, "left": 20 }. Defaults to 0.

arrow_paddingUnion

The padding between the arrow and the edges of the content. If your content has border-radius, this will prevent it from overflowing the corners. Defaults to 0.

stickyLiteral

The sticky behavior on the align axis. "partial" will keep the content in the boundary as long as the trigger is at least partially in the boundary whilst "always" will keep the content in the boundary regardless. Defaults to "partial".

hide_when_detachedbool

Whether to hide the content when the trigger becomes fully occluded. Defaults to False.

Event Triggers

TriggerDescription
on_close_auto_focus

Fired when the dialog is closed.

on_escape_key_down

Fired when the escape key is pressed.

on_pointer_down_outside

Fired when the pointer is down outside the dialog.

on_focus_outside

Fired when focus moves outside the dialog.

on_interact_outside

Fired when the pointer interacts outside the dialog.

The button that toggles the dropdown menu.

PropTypeDescriptionValues
as_childbool

Change the default rendered element for the one passed as a child, merging their props and behavior. Defaults to False.

The Dropdown Menu Item Component.

PropTypeDescriptionValues
color_schemeLiteral

Override theme color for Dropdown Menu Item

shortcutstr

Shortcut to render a menu item as a link

as_childbool

Change the default rendered element for the one passed as a child, merging their props and behavior. Defaults to False.

disabledbool

When true, prevents the user from interacting with the item.

text_valuestr

Optional text used for typeahead purposes. By default the typeahead behavior will use the .textContent of the item. Use this when the content is complex, or you have non-textual content inside.

Event Triggers

TriggerDescription
on_select

Fired when the item is selected.

Dropdown Menu Separator Component. Used to visually separate items in the dropdown menu.

Props

No component specific props

The component that pops out when a submenu is open. Must be rendered inside DropdownMenuSub.

PropTypeDescriptionValues
as_childbool

Change the default rendered element for the one passed as a child, merging their props and behavior. Defaults to False.

loopbool

When True, keyboard navigation will loop from last item to first, and vice versa. Defaults to False.

force_mountbool

Used to force mounting when more control is needed. Useful when controlling animation with React animation libraries.

side_offsetUnion

The distance in pixels from the trigger. Defaults to 0.

align_offsetUnion

An offset in pixels from the "start" or "end" alignment options.

avoid_collisionsbool

When true, overrides the side and align preferences to prevent collisions with boundary edges. Defaults to True.

collision_paddingUnion

The distance in pixels from the boundary edges where collision detection should occur. Accepts a number (same for all sides), or a partial padding object, for example: { "top": 20, "left": 20 }. Defaults to 0.

arrow_paddingUnion

The padding between the arrow and the edges of the content. If your content has border-radius, this will prevent it from overflowing the corners. Defaults to 0.

stickyLiteral

The sticky behavior on the align axis. "partial" will keep the content in the boundary as long as the trigger is at least partially in the boundary whilst "always" will keep the content in the boundary regardless. Defaults to "partial".

hide_when_detachedbool

Whether to hide the content when the trigger becomes fully occluded. Defaults to False.

Event Triggers

TriggerDescription
on_escape_key_down

Fired when the escape key is pressed.

on_pointer_down_outside

Fired when the pointer is down outside the dialog.

on_focus_outside

Fired when focus moves outside the dialog.

on_interact_outside

Fired when the pointer interacts outside the dialog.

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