Implementation of the slider input element.

that have this behavior applied by default:

• <input type=“hslider”> - horizontal slider, inline block;
• <widget type=“hslider”> - horizontal slider, block;
• <input type=“vslider”> - vertical slider, inline block;
• <widget type=“vslider”> - vertical slider, block;

that this behavior knows about:

• value - integer, intital value.
• min - integer, minmum value.
• max - integer, maximum value.
• step - integer, optional (default=1), step value.
• buddy - string, id of buddy element that recives string representation of the value when value is changed.

• BUTTON_STATE_CHANGED event - value has changed by the user.
• BUTTON_CLICK event - the user has finished selection (e.g. on MOUSE_UP).

type json::value::V_INT, reflects current value of the slider.