primeng
Version:
[](https://opensource.org/licenses/MIT) [](https://badge.fury.io/js/primeng) [ • 8.59 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/common'), require('primeng/api'), require('@angular/cdk/scrolling')) :
typeof define === 'function' && define.amd ? define('primeng/virtualscroller', ['exports', '@angular/core', '@angular/common', 'primeng/api', '@angular/cdk/scrolling'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.primeng = global.primeng || {}, global.primeng.virtualscroller = {}), global.ng.core, global.ng.common, global.primeng.api, global.ng.cdk.scrolling));
}(this, (function (exports, core, common, api, scrolling) { 'use strict';
var VirtualScroller = /** @class */ (function () {
function VirtualScroller(el) {
this.el = el;
this.delay = 250;
this.trackBy = function (index, item) { return item; };
this.onLazyLoad = new core.EventEmitter();
this._totalRecords = 0;
this.page = 0;
this._first = 0;
}
Object.defineProperty(VirtualScroller.prototype, "totalRecords", {
get: function () {
return this._totalRecords;
},
set: function (val) {
this._totalRecords = val;
console.log("totalRecords is deprecated, provide a value with the length of virtual items instead.");
},
enumerable: false,
configurable: true
});
Object.defineProperty(VirtualScroller.prototype, "first", {
get: function () {
return this._first;
},
set: function (val) {
this._first = val;
console.log("first property is deprecated, use scrollToIndex function to scroll a specific item.");
},
enumerable: false,
configurable: true
});
Object.defineProperty(VirtualScroller.prototype, "cache", {
get: function () {
return this._cache;
},
set: function (val) {
this._cache = val;
console.log("cache is deprecated as it is always on.");
},
enumerable: false,
configurable: true
});
VirtualScroller.prototype.ngAfterContentInit = function () {
var _this = this;
this.templates.forEach(function (item) {
switch (item.getType()) {
case 'item':
_this.itemTemplate = item.template;
break;
case 'loadingItem':
_this.loadingItemTemplate = item.template;
break;
case 'header':
_this.headerTemplate = item.template;
break;
case 'footer':
_this.footerTemplate = item.template;
break;
default:
_this.itemTemplate = item.template;
break;
}
});
};
VirtualScroller.prototype.onScrollIndexChange = function (index) {
var _this = this;
if (this.lazy) {
if (this.virtualScrollTimeout) {
clearTimeout(this.virtualScrollTimeout);
}
this.virtualScrollTimeout = setTimeout(function () {
var page = Math.floor(index / _this.rows);
var virtualScrollOffset = page === 0 ? 0 : (page - 1) * _this.rows;
var virtualScrollChunkSize = page === 0 ? _this.rows * 2 : _this.rows * 3;
if (page !== _this.virtualPage) {
_this.virtualPage = page;
_this.onLazyLoad.emit({ first: virtualScrollOffset, rows: virtualScrollChunkSize });
}
}, this.delay);
}
};
VirtualScroller.prototype.getBlockableElement = function () {
return this.el.nativeElement.children[0];
};
//@deprecated
VirtualScroller.prototype.scrollTo = function (index, mode) {
this.scrollToIndex(index, mode);
};
VirtualScroller.prototype.scrollToIndex = function (index, mode) {
if (this.viewport) {
this.viewport.scrollToIndex(index, mode);
}
};
return VirtualScroller;
}());
VirtualScroller.decorators = [
{ type: core.Component, args: [{
selector: 'p-virtualScroller',
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 <div class=\"p-virtualscroller-list\">\n <cdk-virtual-scroll-viewport #viewport [ngStyle]=\"{'height': scrollHeight}\" tabindex=\"0\" [itemSize]=\"itemSize\" [minBufferPx]=\"minBufferPx\" [maxBufferPx]=\"maxBufferPx\" (scrolledIndexChange)=\"onScrollIndexChange($event)\">\n <ng-container *cdkVirtualFor=\"let item of value; trackBy: trackBy; let i = index; let c = count; let f = first; let l = last; let e = even; let o = odd;\">\n <div [ngStyle]=\"{'height': itemSize + 'px'}\" class=\"p-virtualscroller-item\">\n <ng-container *ngTemplateOutlet=\"item ? itemTemplate : loadingItemTemplate; context: {$implicit: item, index: i, count: c, first: f, last: l, even: e, odd: o}\"></ng-container>\n </div>\n </ng-container>\n </cdk-virtual-scroll-viewport>\n </div>\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 ",
changeDetection: core.ChangeDetectionStrategy.Default,
encapsulation: core.ViewEncapsulation.None,
styles: ["cdk-virtual-scroll-viewport{outline:0 none}"]
},] }
];
VirtualScroller.ctorParameters = function () { return [
{ type: core.ElementRef }
]; };
VirtualScroller.propDecorators = {
value: [{ type: core.Input }],
itemSize: [{ type: core.Input }],
style: [{ type: core.Input }],
styleClass: [{ type: core.Input }],
scrollHeight: [{ type: core.Input }],
lazy: [{ type: core.Input }],
rows: [{ type: core.Input }],
minBufferPx: [{ type: core.Input }],
maxBufferPx: [{ type: core.Input }],
delay: [{ type: core.Input }],
trackBy: [{ type: core.Input }],
header: [{ type: core.ContentChild, args: [api.Header,] }],
footer: [{ type: core.ContentChild, args: [api.Footer,] }],
templates: [{ type: core.ContentChildren, args: [api.PrimeTemplate,] }],
viewport: [{ type: core.ViewChild, args: [scrolling.CdkVirtualScrollViewport,] }],
onLazyLoad: [{ type: core.Output }],
totalRecords: [{ type: core.Input }],
first: [{ type: core.Input }],
cache: [{ type: core.Input }]
};
var VirtualScrollerModule = /** @class */ (function () {
function VirtualScrollerModule() {
}
return VirtualScrollerModule;
}());
VirtualScrollerModule.decorators = [
{ type: core.NgModule, args: [{
imports: [common.CommonModule, scrolling.ScrollingModule],
exports: [VirtualScroller, api.SharedModule, scrolling.ScrollingModule],
declarations: [VirtualScroller]
},] }
];
/**
* Generated bundle index. Do not edit.
*/
exports.VirtualScroller = VirtualScroller;
exports.VirtualScrollerModule = VirtualScrollerModule;
Object.defineProperty(exports, '__esModule', { value: true });
})));
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