Struct PointerCaptureTracker 

pub struct PointerCaptureTracker { /* private fields */ }

Tracks pointer capture events on views for testing.

This helper makes it easy to verify which views received GainedPointerCapture and LostPointerCapture events.

Example

let tracker = PointerCaptureTracker::new();

let view = tracker.track("my_view", my_view);
// ... set pointer capture ...
assert!(tracker.got_capture_count() > 0);

Implementations

impl PointerCaptureTracker

pub fn new() -> Self

Create a new pointer capture tracker.

pub fn track<V: IntoView>(&self, name: &str, view: V) -> impl IntoView + use<V>

Wrap a view to track pointer capture events with a name.

pub fn gained_capture_count(&self) -> usize

Returns the number of GainedPointerCapture events recorded.

pub fn lost_capture_count(&self) -> usize

Returns the number of LostPointerCapture events recorded.

pub fn got_capture_names(&self) -> Vec<String>

Returns the names of views that got pointer capture, in order.

pub fn lost_capture_names(&self) -> Vec<String>

Returns the names of views that lost pointer capture, in order.

pub fn pointer_down_names(&self) -> Vec<String>

Returns the names of views that received PointerDown events, in order.

pub fn pointer_move_names(&self) -> Vec<String>

Returns the names of views that received PointerMove events, in order.

pub fn pointer_up_names(&self) -> Vec<String>

Returns the names of views that received PointerUp events, in order.

pub fn reset(&self)

Reset the tracker, clearing all recorded events.

Trait Implementations

impl Clone for PointerCaptureTracker

fn clone(&self) -> PointerCaptureTracker

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for PointerCaptureTracker

fn default() -> PointerCaptureTracker

Returns the “default value” for a type.