round-slider

A simple round slider webcomponent - demo

Properties

• value - Required for single slider

• low - Required for high/low slider

• high - Required for high/low slider

• min - Lower limit of values

• max - Higher limit of values

• step - Step size of slider

• startAngle - Angle in degrees at which slider bar starts (default: 135)

• arcLength - Length in degrees of slider bar (default: 270)

• handleSize - Radius of handle in pixels (default: 6)

• handleZoom - The factor the handle size scales when dragged (default: 1.5)

• disabled - Boolean property disabling the slider (default: false)

• readonly - Boolean property disabling slider events (default: false)

• rtl - Boolean property to have the slider move Right to Left (default: false)

• valueLabel - Value to apply to aria-label property of value handle.

• lowLabel - Value to apply to aria-label property of low handle.

• highLabel - Value to apply to aria-label property of high handle.

Events

The slider dispatches two events

• value-changing when the value is changed but the mouse button is still pressed
• value-changed on release of mouse button

Both events pass an object as detail with either value, low, or high set to the new value depending on which slider was pulled.

CSS styles

The following css variables can be used to change the styles:

• --round-slider-path-color - color of bar path
• --round-slider-bar-color - color of bar
• --round-slider-handle-color - color of handles
• --round-slider-low-handle-color - color of low handle (overrides --round-slider-handle-color)
• --round-slider-high-handle-color - color of high handle (overrides --round-slider-handle-color)
• --round-slider-handle-cursor - cursor to use on the handles (default pointer)
• --round-slider-path-width - bar width in pixels (default: 3)
• --round-slider-linecap - svg linecaps of bar (default: round)

Examples

See example.html for usage examples.