Struct ImageAnimationManager

pub struct ImageAnimationManager {
    node_to_image_map: Arc<RwLock<FxHashMap<OpaqueNode, ImageAnimationState>>>,
    rooted_nodes: DomRefCell<FxHashMap<NoTrace<OpaqueNode>, Dom<Node>>>,
    callback_timer_id: Cell<Option<TimerId>>,
}

Fields

node_to_image_map: Arc<RwLock<FxHashMap<OpaqueNode, ImageAnimationState>>>

rooted_nodes: DomRefCell<FxHashMap<NoTrace<OpaqueNode>, Dom<Node>>>

A list of nodes with in-progress image animations.

TODO(mrobinson): This does not properly handle animating images that are in pseudo-elements.

callback_timer_id: Cell<Option<TimerId>>

The TimerId of the currently scheduled animated image update callback.

Implementations

impl ImageAnimationManager

pub(crate) fn node_to_image_map( &self, ) -> Arc<RwLock<FxHashMap<OpaqueNode, ImageAnimationState>>>

fn duration_to_next_frame(&self, now: f64) -> Option<Duration>

pub(crate) fn update_active_frames(&self, window: &Window, now: f64)

pub(crate) fn update_rooted_dom_nodes(&self, window: &Window, now: f64)

Ensure that all nodes with animating images are rooted and unroots any nodes that no longer have an animating image. This should be called immediately after a restyle, to ensure that these addresses are still valid.

fn maybe_schedule_animated_image_update_callback( &self, window: &Window, now: f64, )

Trait Implementations

impl Clone for ImageAnimationManager

fn clone(&self) -> ImageAnimationManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for ImageAnimationManager

fn default() -> ImageAnimationManager

Returns the “default value” for a type.

impl MallocSizeOf for ImageAnimationManager

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl Traceable for ImageAnimationManager

unsafe fn trace(&self, tracer: *mut JSTracer)

Trace self.