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A decentralized music tracking and discovery platform built on AT Protocol 🎵 rocksky.app
spotify atproto lastfm musicbrainz scrobbling listenbrainz
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12345678910111213141516171819202122232425262728293031323334353637383940414243/** Keep end-of-list demand alive while a query is busy. Each list owns one gate. */export class RemoteLibraryPaging { private height = 0; private contentHeight = 0; private offset = 0; private nearEnd = false; private requested = false;
scroll(offset: number, height: number, contentHeight: number) { this.offset = offset; this.height = height; this.contentHeight = contentHeight; return this.measure(); }
layout(height: number) { this.height = height; return this.measure(); }
contentSize(height: number) { this.contentHeight = height; return this.measure(); }
private measure() { const previous = this.nearEnd; this.nearEnd = this.height > 0 && this.contentHeight > 0 && this.contentHeight - this.offset - this.height <= this.height; return previous !== this.nearEnd; }
endReached() { this.nearEnd = true; } request() { this.requested = true; }
take(hasNext: boolean, fetching: boolean, failed: boolean) { if (!hasNext || fetching || (!this.requested && (!this.nearEnd || failed))) return false; this.requested = false; return true; }}