Struct AssetLoader 

pub struct AssetLoader { /* private fields */ }

An asynchronous asset loader that fetches resources over HTTP and populates a shared AssetCache.

Implementations

impl AssetLoader

Implements asynchronous asset loading for AssetLoader.

pub fn load_image(&mut self, url: String)

Begins loading an image asset from the given URL.

Creates an HtmlImageElement, sets its src, and registers onload/onerror callbacks to update the shared cache state. The image loads asynchronously.

Arguments

• String - The URL of the image to load.

pub fn is_all_loaded(&self) -> bool

Returns whether all requested assets have finished loading.

Returns

• bool - True if no assets are pending.

pub fn get_image(&self, url: &str) -> Option<HtmlImageElement>

Returns the loaded image for the given URL.

Arguments

• &str - The asset URL.

Returns

• Option<HtmlImageElement> - The loaded image, or None.

pub fn progress(&self) -> f64

Returns the progress ratio of loaded assets.

Returns

• f64 - The ratio in the range 0.0 to 1.0.

impl AssetLoader

Implements static asset creation utilities for AssetLoader.

pub fn create_image_element(url: &str) -> Option<HtmlImageElement>

Creates an HtmlImageElement from the given URL without caching.

The image loads asynchronously. Returns immediately with the image element whose src is set but may not have finished loading yet.

Arguments

• &str - The image URL.

Returns

• Option<HtmlImageElement> - The image element, or None if creation failed.

impl AssetLoader

pub fn get_cache(&self) -> &Rc<RefCell<AssetCache>>

pub fn get_mut_cache(&mut self) -> &mut Rc<RefCell<AssetCache>>

pub fn set_cache(&mut self, val: Rc<RefCell<AssetCache>>) -> &mut Self

impl AssetLoader

pub fn new() -> Self

Trait Implementations

impl Clone for AssetLoader

fn clone(&self) -> AssetLoader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for AssetLoader

Implements Default for AssetLoader as a new empty loader.

fn default() -> AssetLoader

Returns the “default value” for a type.