Struct IntersectionObservationOutput

struct IntersectionObservationOutput {
    pub(crate) threshold_index: i32,
    pub(crate) is_intersecting: bool,
    pub(crate) target_rect: Rect<Au>,
    pub(crate) intersection_rect: Rect<Au>,
    pub(crate) intersection_ratio: f64,
    pub(crate) is_visible: bool,
    pub(crate) root_bounds: Rect<Au>,
}

The values from computing step 2.2.4-2.2.14 in https://w3c.github.io/IntersectionObserver/#update-intersection-observations-algo. See IntersectionObserver::maybe_compute_intersection_output.

Fields

threshold_index: i32

is_intersecting: bool

target_rect: Rect<Au>

intersection_rect: Rect<Au>

intersection_ratio: f64

is_visible: bool

root_bounds: Rect<Au>

The root intersection rectangle IntersectionObserver::root_intersection_rectangle. If the processing is skipped, computation should report the default zero value.

Implementations

impl IntersectionObservationOutput

fn default_skipped() -> Self

Default values according to https://w3c.github.io/IntersectionObserver/#update-intersection-observations-algo. Step 4.

Let:

• thresholdIndex be 0.
• isIntersecting be false.
• targetRect be a DOMRectReadOnly with x, y, width, and height set to 0.
• intersectionRect be a DOMRectReadOnly with x, y, width, and height set to 0.

For fields that the default values is not directly mentioned, the values conformant to current browser implementation or WPT test is used instead.

fn new_computed( threshold_index: i32, is_intersecting: bool, target_rect: Rect<Au>, intersection_rect: Rect<Au>, intersection_ratio: f64, is_visible: bool, root_bounds: Rect<Au>, ) -> Self