99 lines
1.3 KiB
JavaScript
99 lines
1.3 KiB
JavaScript
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/**
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* @author mrdoob / http://mrdoob.com/
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*/
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function LoadingManager( onLoad, onProgress, onError ) {
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var scope = this;
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var isLoading = false;
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var itemsLoaded = 0;
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var itemsTotal = 0;
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var urlModifier = undefined;
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// Refer to #5689 for the reason why we don't set .onStart
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// in the constructor
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this.onStart = undefined;
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this.onLoad = onLoad;
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this.onProgress = onProgress;
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this.onError = onError;
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this.itemStart = function ( url ) {
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itemsTotal ++;
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if ( isLoading === false ) {
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if ( scope.onStart !== undefined ) {
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scope.onStart( url, itemsLoaded, itemsTotal );
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}
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}
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isLoading = true;
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};
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this.itemEnd = function ( url ) {
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itemsLoaded ++;
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if ( scope.onProgress !== undefined ) {
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scope.onProgress( url, itemsLoaded, itemsTotal );
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}
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if ( itemsLoaded === itemsTotal ) {
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isLoading = false;
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if ( scope.onLoad !== undefined ) {
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scope.onLoad();
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}
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}
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};
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this.itemError = function ( url ) {
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if ( scope.onError !== undefined ) {
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scope.onError( url );
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}
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};
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this.resolveURL = function ( url ) {
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if ( urlModifier ) {
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return urlModifier( url );
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}
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return url;
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};
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this.setURLModifier = function ( transform ) {
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urlModifier = transform;
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return this;
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};
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}
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var DefaultLoadingManager = new LoadingManager();
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export { DefaultLoadingManager, LoadingManager };
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