primeng
Version:
[](https://opensource.org/licenses/MIT) [](https://badge.fury.io/js/primeng) [ • 14.9 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, i0, i2, api, i1) { 'use strict';
function _interopNamespace(e) {
if (e && e.__esModule) return e;
var n = Object.create(null);
if (e) {
Object.keys(e).forEach(function (k) {
if (k !== 'default') {
var d = Object.getOwnPropertyDescriptor(e, k);
Object.defineProperty(n, k, d.get ? d : {
enumerable: true,
get: function () {
return e[k];
}
});
}
});
}
n['default'] = e;
return Object.freeze(n);
}
var i0__namespace = /*#__PURE__*/_interopNamespace(i0);
var i2__namespace = /*#__PURE__*/_interopNamespace(i2);
var i1__namespace = /*#__PURE__*/_interopNamespace(i1);
var VirtualScroller = /** @class */ (function () {
function VirtualScroller(el) {
this.el = el;
this.delay = 250;
this.trackBy = function (index, item) { return item; };
this.onLazyLoad = new i0.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.ɵfac = i0__namespace.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0__namespace, type: VirtualScroller, deps: [{ token: i0__namespace.ElementRef }], target: i0__namespace.ɵɵFactoryTarget.Component });
VirtualScroller.ɵcmp = i0__namespace.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "12.0.4", type: VirtualScroller, selector: "p-virtualScroller", inputs: { value: "value", itemSize: "itemSize", style: "style", styleClass: "styleClass", scrollHeight: "scrollHeight", lazy: "lazy", rows: "rows", minBufferPx: "minBufferPx", maxBufferPx: "maxBufferPx", delay: "delay", trackBy: "trackBy", totalRecords: "totalRecords", first: "first", cache: "cache" }, outputs: { onLazyLoad: "onLazyLoad" }, queries: [{ propertyName: "header", first: true, predicate: api.Header, descendants: true }, { propertyName: "footer", first: true, predicate: api.Footer, descendants: true }, { propertyName: "templates", predicate: api.PrimeTemplate }], viewQueries: [{ propertyName: "viewport", first: true, predicate: i1.CdkVirtualScrollViewport, descendants: true }], ngImport: i0__namespace, 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 ", isInline: true, styles: ["cdk-virtual-scroll-viewport{outline:0 none}"], components: [{ type: i1__namespace.CdkVirtualScrollViewport, selector: "cdk-virtual-scroll-viewport", inputs: ["orientation"], outputs: ["scrolledIndexChange"] }], directives: [{ type: i2__namespace.NgClass, selector: "[ngClass]", inputs: ["class", "ngClass"] }, { type: i2__namespace.NgStyle, selector: "[ngStyle]", inputs: ["ngStyle"] }, { type: i2__namespace.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { type: i2__namespace.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet"] }, { type: i1__namespace.CdkFixedSizeVirtualScroll, selector: "cdk-virtual-scroll-viewport[itemSize]", inputs: ["itemSize", "minBufferPx", "maxBufferPx"] }, { type: i1__namespace.CdkVirtualForOf, selector: "[cdkVirtualFor][cdkVirtualForOf]", inputs: ["cdkVirtualForOf", "cdkVirtualForTrackBy", "cdkVirtualForTemplate", "cdkVirtualForTemplateCacheSize"] }], changeDetection: i0__namespace.ChangeDetectionStrategy.Default, encapsulation: i0__namespace.ViewEncapsulation.None });
i0__namespace.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0__namespace, type: VirtualScroller, decorators: [{
type: i0.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: i0.ChangeDetectionStrategy.Default,
encapsulation: i0.ViewEncapsulation.None,
styleUrls: ['./virtualscroller.css']
}]
}], ctorParameters: function () { return [{ type: i0__namespace.ElementRef }]; }, propDecorators: { value: [{
type: i0.Input
}], itemSize: [{
type: i0.Input
}], style: [{
type: i0.Input
}], styleClass: [{
type: i0.Input
}], scrollHeight: [{
type: i0.Input
}], lazy: [{
type: i0.Input
}], rows: [{
type: i0.Input
}], minBufferPx: [{
type: i0.Input
}], maxBufferPx: [{
type: i0.Input
}], delay: [{
type: i0.Input
}], trackBy: [{
type: i0.Input
}], header: [{
type: i0.ContentChild,
args: [api.Header]
}], footer: [{
type: i0.ContentChild,
args: [api.Footer]
}], templates: [{
type: i0.ContentChildren,
args: [api.PrimeTemplate]
}], viewport: [{
type: i0.ViewChild,
args: [i1.CdkVirtualScrollViewport]
}], onLazyLoad: [{
type: i0.Output
}], totalRecords: [{
type: i0.Input
}], first: [{
type: i0.Input
}], cache: [{
type: i0.Input
}] } });
var VirtualScrollerModule = /** @class */ (function () {
function VirtualScrollerModule() {
}
return VirtualScrollerModule;
}());
VirtualScrollerModule.ɵfac = i0__namespace.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0__namespace, type: VirtualScrollerModule, deps: [], target: i0__namespace.ɵɵFactoryTarget.NgModule });
VirtualScrollerModule.ɵmod = i0__namespace.ɵɵngDeclareNgModule({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0__namespace, type: VirtualScrollerModule, declarations: [VirtualScroller], imports: [i2.CommonModule, i1.ScrollingModule], exports: [VirtualScroller, api.SharedModule, i1.ScrollingModule] });
VirtualScrollerModule.ɵinj = i0__namespace.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0__namespace, type: VirtualScrollerModule, imports: [[i2.CommonModule, i1.ScrollingModule], api.SharedModule, i1.ScrollingModule] });
i0__namespace.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "12.0.4", ngImport: i0__namespace, type: VirtualScrollerModule, decorators: [{
type: i0.NgModule,
args: [{
imports: [i2.CommonModule, i1.ScrollingModule],
exports: [VirtualScroller, api.SharedModule, i1.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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