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189 lines
8.6 KiB
JavaScript
189 lines
8.6 KiB
JavaScript
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6 years ago
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"use strict";
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var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
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var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
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return c > 3 && r && Object.defineProperty(target, key, r), r;
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};
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var __metadata = (this && this.__metadata) || function (k, v) {
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if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var core_1 = require("@angular/core");
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var common_1 = require("@angular/common");
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var shared_1 = require("../common/shared");
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var scrolling_1 = require("@angular/cdk/scrolling");
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var VirtualScroller = /** @class */ (function () {
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function VirtualScroller(el) {
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this.el = el;
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this.cache = true;
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this.first = 0;
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this.trackBy = function (index, item) { return item; };
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this.onLazyLoad = new core_1.EventEmitter();
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this._totalRecords = 0;
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this.lazyValue = [];
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this.page = 0;
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}
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Object.defineProperty(VirtualScroller.prototype, "totalRecords", {
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get: function () {
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return this._totalRecords;
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},
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set: function (val) {
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this._totalRecords = val;
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this.lazyValue = Array.from({ length: this._totalRecords });
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this.onLazyLoad.emit(this.createLazyLoadMetadata());
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this.first = 0;
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this.scrollTo(0);
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(VirtualScroller.prototype, "value", {
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get: function () {
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return this.lazy ? this.lazyValue : this._value;
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},
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set: function (val) {
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if (this.lazy) {
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if (val) {
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var arr = this.cache ? this.lazyValue.slice() : Array.from({ length: this._totalRecords });
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for (var i = this.first, j = 0; i < (this.first + this.rows); i++, j++) {
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arr[i] = val[j];
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}
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this.lazyValue = arr;
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}
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}
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else {
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this._value = val;
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}
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},
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enumerable: true,
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configurable: true
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});
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VirtualScroller.prototype.ngAfterContentInit = function () {
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var _this = this;
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this.templates.forEach(function (item) {
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switch (item.getType()) {
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case 'item':
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_this.itemTemplate = item.template;
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break;
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case 'loadingItem':
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_this.loadingItemTemplate = item.template;
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break;
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default:
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_this.itemTemplate = item.template;
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break;
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}
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});
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};
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VirtualScroller.prototype.onScrollIndexChange = function (index) {
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var p = Math.floor(index / this.rows);
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if (p !== this.page) {
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this.page = p;
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this.first = this.page * this.rows;
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this.onLazyLoad.emit(this.createLazyLoadMetadata());
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}
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};
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VirtualScroller.prototype.createLazyLoadMetadata = function () {
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return {
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first: this.first,
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rows: this.rows
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};
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};
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VirtualScroller.prototype.getBlockableElement = function () {
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return this.el.nativeElement.children[0];
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};
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VirtualScroller.prototype.scrollTo = function (index) {
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if (this.viewPortViewChild && this.viewPortViewChild['elementRef'] && this.viewPortViewChild['elementRef'].nativeElement) {
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this.viewPortViewChild['elementRef'].nativeElement.scrollTop = index * this.itemSize;
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}
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};
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__decorate([
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core_1.Input(),
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__metadata("design:type", Number)
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], VirtualScroller.prototype, "itemSize", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Object)
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], VirtualScroller.prototype, "style", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", String)
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], VirtualScroller.prototype, "styleClass", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Object)
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], VirtualScroller.prototype, "scrollHeight", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Boolean)
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], VirtualScroller.prototype, "lazy", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Boolean)
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], VirtualScroller.prototype, "cache", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Number)
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], VirtualScroller.prototype, "rows", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Number)
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], VirtualScroller.prototype, "first", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Function)
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], VirtualScroller.prototype, "trackBy", void 0);
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__decorate([
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core_1.ContentChild(shared_1.Header),
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__metadata("design:type", Object)
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], VirtualScroller.prototype, "header", void 0);
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__decorate([
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core_1.ContentChild(shared_1.Footer),
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__metadata("design:type", Object)
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], VirtualScroller.prototype, "footer", void 0);
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__decorate([
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core_1.ContentChildren(shared_1.PrimeTemplate),
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__metadata("design:type", core_1.QueryList)
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], VirtualScroller.prototype, "templates", void 0);
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__decorate([
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core_1.ViewChild('viewport'),
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__metadata("design:type", core_1.ElementRef)
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], VirtualScroller.prototype, "viewPortViewChild", void 0);
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__decorate([
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core_1.Output(),
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__metadata("design:type", core_1.EventEmitter)
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], VirtualScroller.prototype, "onLazyLoad", void 0);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Number),
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__metadata("design:paramtypes", [Number])
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], VirtualScroller.prototype, "totalRecords", null);
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__decorate([
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core_1.Input(),
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__metadata("design:type", Array),
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__metadata("design:paramtypes", [Array])
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], VirtualScroller.prototype, "value", null);
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VirtualScroller = __decorate([
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core_1.Component({
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selector: 'p-virtualScroller',
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template: "\n <div [ngClass]=\"'ui-virtualscroller ui-widget'\" [ngStyle]=\"style\" [class]=\"styleClass\">\n <div class=\"ui-virtualscroller-header ui-widget-header ui-corner-top\" *ngIf=\"header\">\n <ng-content select=\"p-header\"></ng-content>\n </div>\n <div #content class=\"ui-virtualscroller-content ui-widget-content\">\n <ul class=\"ui-virtualscroller-list\">\n <cdk-virtual-scroll-viewport #viewport [ngStyle]=\"{'height': scrollHeight}\" [itemSize]=\"itemSize\" (scrolledIndexChange)=\"onScrollIndexChange($event)\">\n <ng-container *cdkVirtualFor=\"let item of value; trackBy: trackBy; let i = index; let c = count; let f = first; let l = last; let e = even; let o = odd; \">\n <li [ngStyle]=\"{'height': itemSize + 'px'}\">\n <ng-container *ngTemplateOutlet=\"item ? itemTemplate : loadingItemTemplate; context: {$implicit: item, index: i, count: c, first: f, last: l, even: e, odd: o}\"></ng-container>\n </li>\n </ng-container>\n </cdk-virtual-scroll-viewport>\n </ul>\n </div>\n <div class=\"ui-virtualscroller-footer ui-widget-header ui-corner-bottom\" *ngIf=\"footer\">\n <ng-content select=\"p-footer\"></ng-content>\n </div>\n </div>\n "
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}),
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__metadata("design:paramtypes", [core_1.ElementRef])
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], VirtualScroller);
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return VirtualScroller;
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}());
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exports.VirtualScroller = VirtualScroller;
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var VirtualScrollerModule = /** @class */ (function () {
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function VirtualScrollerModule() {
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}
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VirtualScrollerModule = __decorate([
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core_1.NgModule({
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imports: [common_1.CommonModule, scrolling_1.ScrollingModule],
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exports: [VirtualScroller, shared_1.SharedModule, scrolling_1.ScrollingModule],
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declarations: [VirtualScroller]
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})
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], VirtualScrollerModule);
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return VirtualScrollerModule;
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}());
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exports.VirtualScrollerModule = VirtualScrollerModule;
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//# sourceMappingURL=virtualscroller.js.map
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