Decimal size value on element size causing scrollbar unnecessarily appearing

[sabdol]

After 1.5.6 update, when browser is zoomed in or out to 90% or 110%, scrollbar is appearing where it does not have to.

This seems due to 1.5.6 update contains

    i.containerWidth = Math.floor(rect.width);
    i.containerHeight = Math.floor(rect.height);

this 2 lines change.

The scroller active status was determined by comparing i.containerWidth/Height and i.contentWidth/Height.

Due to using Math.floor instead of round causing the issue as when the value is like 559.99 is the size of element,

i.container size becomes 599 due to floor. while i.content size will be 600 as Chrome round the value when doing element.scrollHeight.

Now container is recognised as smaller then contents and scrollbar appearing, which is wrong.

Tested on: Chrome Version 137.0.7151.120 (Official Build) (arm64)

[MaximBalaganskiy]

Try setting 1px offsets

this.instance = new PerfectScrollbar(this.element, { scrollXMarginOffset: 1, scrollYMarginOffset: 1 });