primeng/fesm2020/primeng-virtualscroller.mjs.map

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{"version":3,"file":"primeng-virtualscroller.mjs","sources":["../../src/app/components/virtualscroller/virtualscroller.ts","../../src/app/components/virtualscroller/primeng-virtualscroller.ts"],"sourcesContent":["import { NgModule, Component, ElementRef, AfterContentInit, Input, Output, EventEmitter, ContentChild, ContentChildren, QueryList, TemplateRef, ChangeDetectionStrategy, ViewEncapsulation, Inject, Optional, ViewChild, ChangeDetectorRef } from '@angular/core';\nimport { CommonModule } from '@angular/common';\nimport { Header, Footer, PrimeTemplate, SharedModule, BlockableUI } from 'primeng/api';\nimport { Scroller, ScrollerModule, ScrollerOptions } from 'primeng/scroller';\n\n@Component({\n    selector: 'p-virtualScroller',\n    template: `\n        <div [ngClass]=\"'p-virtualscroller p-component'\" [ngStyle]=\"style\" [class]=\"styleClass\">\n            <div class=\"p-virtualscroller-header\" *ngIf=\"header || headerTemplate\">\n                <ng-content select=\"p-header\"></ng-content>\n                <ng-container *ngTemplateOutlet=\"headerTemplate\"></ng-container>\n            </div>\n            <div #content class=\"p-virtualscroller-content\">\n                <p-scroller #scroller [items]=\"value\" styleClass=\"p-virtualscroller-list\" [style]=\"{'height': scrollHeight}\" [itemSize]=\"itemSize\"\n                    [lazy]=\"lazy\" (onLazyLoad)=\"onLazyItemLoad($event)\" [options]=\"options\">\n                    <ng-template pTemplate=\"item\" let-item let-scrollerOptions=\"options\">\n                        <div [ngStyle]=\"{'height': itemSize + 'px'}\" class=\"p-virtualscroller-item\">\n                            <ng-container *ngTemplateOutlet=\"item ? itemTemplate : loadingItemTemplate; context: {$implicit: item, options: scrollerOptions}\"></ng-container>\n                        </div>\n                    </ng-template>\n                </p-scroller>\n            </div>\n            <div class=\"p-virtualscroller-footer\" *ngIf=\"footer || footerTemplate\">\n                <ng-content select=\"p-footer\"></ng-content>\n                <ng-container *ngTemplateOutlet=\"footerTemplate\"></ng-container>\n            </div>\n        </div>\n    `,\n    changeDetection: ChangeDetectionStrategy.Default,\n    encapsulation: ViewEncapsulation.None,\n    host: {\n        'class': 'p-element'\n    }\n})\nexport class VirtualScroller implements AfterContentInit, BlockableUI {\n\n    @Input() value: any[];\n\n    @Input() itemSize: number;\n\n    @Input() style: any;\n\n    @Input() styleClass: string;\n\n    @Input() scrollHeight: any;\n\n    @Input() lazy: boolean;\n\n    @Input() options: ScrollerOptions;\n\n    @Input() delay: number = 250;\n\n    @ContentChild(Header) header: Header;\n\n    @ContentChild(Footer) footer: Footer;\n\n    @ContentChildren(PrimeTemplate) templates: QueryList<any>;\n\n    @ViewChild('scroller') scroller: Scroller;\n\n    @Output() onLazyLoad: EventEmitter<any> = new EventEmitter();\n\n    itemTemplate: TemplateRef<any>;\n\n    headerTemplate: TemplateRef<any>;\n\n    footerTemplate: TemplateRef<any>;\n\n    loadingItemTemplate: TemplateRef<any>;\n\n    virtualScrollTimeout: any;\n\n    constructor(public el: ElementRef, public cd: ChangeDetectorRef) { }\n\n    ngAfterContentInit() {\n        this.templates.forEach((item) => {\n            switch (item.getType()) {\n                case 'item':\n                    this.itemTemplate = item.template;\n                    break;\n\n                case 'loadingItem':\n                    this.loadingItemTemplate = item.template;\n                    break;\n\n                case 'header':\n                    this.headerTemplate = item.template;\n                    break;\n\n                case 'footer':\n                    this.footerTemplate = item.template;\n                    break;\n\n                default:\n                    this.itemTemplate = item.template;\n                    break;\n            }\n        });\n    }\n\n    onLazyItemLoad(event) {\n        if (this.virtualScrollTimeout) {\n            clearTimeout(this.virtualScrollTimeout);\n        }\n\n        this.virtualScrollTimeout = setTimeout(() => {\n            this.onLazyLoad.emit({\n                ...event,\n                rows: event.last - event.first,\n                forceUpdate: () => this.cd.detectChanges()\n            });\n        }, this.delay);\n    }\n\n    getBlockableElement(): HTMLElement {\n        return this.el.nativeElement.children[0];\n    }\n\n    scrollToIndex(index: number, mode?: ScrollBehavior): void {\n        this.scroller?.scrollToIndex(index, mode);\n    }\n}\n\n@NgModule({\n    imports: [CommonModule, SharedModule, ScrollerModule],\n    exports: [VirtualScroller, SharedModule, ScrollerModule],\n    declarations: [VirtualScroller]\n})\nexport class VirtualScrollerModule { }\n\n","/**\n * Generated bundle index. 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