Telegram Web K with changes to work inside I2P
https://web.telegram.i2p/
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64 lines
1.7 KiB
64 lines
1.7 KiB
/* |
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* https://github.com/morethanwords/tweb |
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* Copyright (C) 2019-2021 Eduard Kuzmenko |
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* https://github.com/morethanwords/tweb/blob/master/LICENSE |
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*/ |
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import indexOfAndSplice from '../helpers/array/indexOfAndSplice'; |
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import LazyLoadQueueIntersector, {LazyLoadElement} from './lazyLoadQueueIntersector'; |
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import VisibilityIntersector, {OnVisibilityChange} from './visibilityIntersector'; |
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export default class LazyLoadQueueRepeat extends LazyLoadQueueIntersector { |
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private elementsMap: Map<HTMLElement, LazyLoadElement> = new Map(); |
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constructor( |
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parallelLimit?: number, |
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protected onVisibilityChange?: OnVisibilityChange, |
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options?: IntersectionObserverInit |
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) { |
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super(parallelLimit); |
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this.intersector = new VisibilityIntersector((item) => { |
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const {target, visible} = item; |
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const queueItem = this.elementsMap.get(target); |
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queueItem.visible = visible; |
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if(visible) { |
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queueItem.wasSeen = true; |
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if(!this.queue.includes(queueItem)) { |
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this.queue.push(queueItem); |
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} |
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} else { |
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indexOfAndSplice(this.queue, queueItem); |
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} |
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this.onVisibilityChange?.(item); |
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this.setProcessQueueTimeout(); |
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}, options); |
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} |
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public clear() { |
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super.clear(); |
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this.elementsMap.clear(); |
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} |
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/* public async processItem(item: LazyLoadElement) { |
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//await super.processItem(item); |
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await LazyLoadQueueBase.prototype.processItem.call(this, item); |
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if(this.lazyLoadMedia.length) { |
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this.processQueue(); |
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} |
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} */ |
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public observe(el: LazyLoadElement) { |
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this.elementsMap.set(el.div, el); |
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super.observe(el); |
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} |
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public unobserve(el: LazyLoadElement) { |
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this.elementsMap.delete(el.div); |
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super.unobserve(el); |
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} |
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}
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