Trait ImageCache

pub trait ImageCache: Sync + Send {
    // Required methods
    fn new(
        compositor_api: CrossProcessCompositorApi,
        rippy_data: Vec<u8>,
    ) -> Self
       where Self: Sized;
    fn memory_report(&self, prefix: &str, ops: &mut MallocSizeOfOps) -> Report;
    fn get_image(
        &self,
        url: ServoUrl,
        origin: ImmutableOrigin,
        cors_setting: Option<CorsSettings>,
    ) -> Option<Image>;
    fn get_cached_image_status(
        &self,
        url: ServoUrl,
        origin: ImmutableOrigin,
        cors_setting: Option<CorsSettings>,
        use_placeholder: UsePlaceholder,
    ) -> ImageCacheResult;
    fn rasterize_vector_image(
        &self,
        image_id: VectorImageId,
        size: DeviceIntSize,
    ) -> Option<RasterImage>;
    fn add_rasterization_complete_listener(
        &self,
        pipeline_id: PipelineId,
        image_id: VectorImageId,
        size: DeviceIntSize,
        sender: IpcSender<ImageCacheResponseMessage>,
    );
    fn add_listener(&self, listener: ImageLoadListener);
    fn notify_pending_response(
        &self,
        id: PendingImageId,
        action: FetchResponseMsg,
    );
    fn create_new_image_cache(
        &self,
        compositor_api: CrossProcessCompositorApi,
    ) -> Arc<dyn ImageCache>;
}

Required Methods

fn new(compositor_api: CrossProcessCompositorApi, rippy_data: Vec<u8>) -> Self

where Self: Sized,

fn memory_report(&self, prefix: &str, ops: &mut MallocSizeOfOps) -> Report

fn get_image( &self, url: ServoUrl, origin: ImmutableOrigin, cors_setting: Option<CorsSettings>, ) -> Option<Image>

Definitively check whether there is a cached, fully loaded image available.

fn get_cached_image_status( &self, url: ServoUrl, origin: ImmutableOrigin, cors_setting: Option<CorsSettings>, use_placeholder: UsePlaceholder, ) -> ImageCacheResult

fn rasterize_vector_image( &self, image_id: VectorImageId, size: DeviceIntSize, ) -> Option<RasterImage>

Returns Some if the given image_id has already been rasterized at the given size. Otherwise, triggers a new job to perform the rasterization. If a notification is needed after rasterization is completed, the add_rasterization_complete_listener API below can be used to add a listener.

fn add_rasterization_complete_listener( &self, pipeline_id: PipelineId, image_id: VectorImageId, size: DeviceIntSize, sender: IpcSender<ImageCacheResponseMessage>, )

Adds a new listener to be notified once the given image_id has been rasterized at the given size. The listener will receive a VectorImageRasterizationComplete message on the given sender, even if the listener is called after rasterization at has already completed.

fn add_listener(&self, listener: ImageLoadListener)

Add a new listener for the given pending image id. If the image is already present, the responder will still receive the expected response.

fn notify_pending_response(&self, id: PendingImageId, action: FetchResponseMsg)

Inform the image cache about a response for a pending request.

fn create_new_image_cache( &self, compositor_api: CrossProcessCompositorApi, ) -> Arc<dyn ImageCache>

Create new image cache based on this one, while reusing the existing thread_pool.

Implementors