Enum Positioning 

pub enum Positioning {
    Top,
    TopStart,
    TopEnd,
    Right,
    RightStart,
    RightEnd,
    Bottom,
    BottomStart,
    BottomEnd,
    Left,
    LeftStart,
    LeftEnd,
}

Specifies where content should be positioned relative to a trigger element.

Each variant places the content along one of the four edges of the trigger, with optional alignment (Start / End) along the perpendicular axis. When no alignment suffix is given, the content is centered along that edge.

        TopStart    Top    TopEnd
           ┌─────────────────┐
LeftStart  │                 │  RightStart
      Left │     trigger     │  Right
 LeftEnd   │                 │  RightEnd
           └─────────────────┘
     BottomStart  Bottom  BottomEnd

Variants

Top

Centered above the trigger.

TopStart

Above the trigger, aligned to the start (left) edge.

TopEnd

Above the trigger, aligned to the end (right) edge.

Right

Centered to the right of the trigger.

RightStart

To the right of the trigger, aligned to the start (top) edge.

RightEnd

To the right of the trigger, aligned to the end (bottom) edge.

Bottom

Centered below the trigger.

BottomStart

Below the trigger, aligned to the start (left) edge.

BottomEnd

Below the trigger, aligned to the end (right) edge.

Left

Centered to the left of the trigger.

LeftStart

To the left of the trigger, aligned to the start (top) edge.

LeftEnd

To the left of the trigger, aligned to the end (bottom) edge.

Implementations

impl Positioning

pub fn calculate_position( self, trigger_top: f64, trigger_left: f64, trigger_width: f64, trigger_height: f64, content_height: f64, content_width: f64, offset: f64, ) -> (f64, f64)

Calculate the position of content relative to a trigger element.

Returns (top, left) coordinates in pixels, suitable for use with position: fixed CSS styling.

Arguments

• trigger_top / trigger_left – the trigger element’s viewport coordinates.
• trigger_width / trigger_height – the trigger element’s dimensions.
• content_height / content_width – the content element’s dimensions.
• offset – additional spacing (in pixels) between the trigger and content.

pub fn calculate_arrow_position( self, trigger_top: f64, trigger_left: f64, trigger_width: f64, trigger_height: f64, arrow_size: f64, ) -> (f64, f64, i32)

Calculate the position and rotation for an arrow indicator.

Returns (top, left, rotation) where top and left are pixel coordinates and rotation is in degrees. The arrow is intended to be a small square element rotated so that one corner points toward the trigger.

Arguments

• trigger_top / trigger_left – the trigger element’s viewport coordinates.
• trigger_width / trigger_height – the trigger element’s dimensions.
• arrow_size – the width/height of the square arrow element in pixels.

pub fn calculate_position_style( self, trigger_top: f64, trigger_left: f64, trigger_width: f64, trigger_height: f64, content_height: f64, content_width: f64, offset: f64, arrow_size: f64, ) -> String

Calculate position as a CSS style attribute string including arrow CSS custom properties.

The returned string sets position: fixed, top, left, and three CSS custom properties consumed by the arrow element:

• --biji-tooltip-arrow-top
• --biji-tooltip-arrow-left
• --biji-tooltip-arrow-rotation

pub fn calculate_position_style_simple( self, trigger_top: f64, trigger_left: f64, trigger_width: f64, trigger_height: f64, content_height: f64, content_width: f64, offset: f64, ) -> String

Calculate position as a simple CSS style attribute string without arrow variables.

Returns a string containing only position: fixed, top, and left. Use this when an arrow indicator is not needed (e.g., dropdown menus).

Trait Implementations

impl Clone for Positioning

fn clone(&self) -> Positioning

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Positioning

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Positioning

fn default() -> Positioning

Returns the “default value” for a type.

impl Copy for Positioning