checkVisibility method
The checkVisibility()
method of the Element
interface checks
whether the element is visible.
The method returns false
in either of the following situations:
- The element doesn't have an associated box, for example because the CSS
display
property is set tonone
orcontents
. - The element is not being rendered because the element or an ancestor
element sets the property to
hidden
.
The optional parameter enables additional checks to test for other
interpretations of what "visible" means.
For example, you can further check whether an element has an opacity of
0
, if the value of the element
visibility
property makes it invisible, or if the element property has a value of
auto
and its rendering is currently being skipped.
Implementation
external bool checkVisibility([CheckVisibilityOptions options]);