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218 lines
9.1 KiB
JavaScript
218 lines
9.1 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 DataScroller = /** @class */ (function () {
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function DataScroller(el, renderer, zone) {
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this.el = el;
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this.renderer = renderer;
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this.zone = zone;
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this.buffer = 0.9;
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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.dataToRender = [];
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this.first = 0;
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this.page = 0;
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}
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DataScroller.prototype.ngOnInit = function () {
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this.load();
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};
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DataScroller.prototype.ngAfterViewInit = function () {
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var _this = this;
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if (this.loader) {
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this.loaderClickListener = this.renderer.listen(this.loader, 'click', function () {
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_this.load();
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});
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}
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else {
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this.bindScrollListener();
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}
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};
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DataScroller.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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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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DataScroller.prototype.load = function () {
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if (this.lazy) {
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this.onLazyLoad.emit({
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first: this.page * this.rows,
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rows: this.rows
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});
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}
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this.page = this.page + 1;
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};
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DataScroller.prototype.shouldLoad = function () {
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if (this.lazy)
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return (this.rows * this.page < this.totalRecords);
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else
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return this.value && this.value.length && (this.rows * this.page < this.value.length);
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};
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DataScroller.prototype.reset = function () {
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this.page = 0;
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};
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DataScroller.prototype.isEmpty = function () {
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return !this.value || (this.value.length == 0);
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};
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DataScroller.prototype.bindScrollListener = function () {
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var _this = this;
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this.zone.runOutsideAngular(function () {
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if (_this.inline) {
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_this.inlineScrollListener = _this.onInlineScroll.bind(_this);
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_this.contentViewChild.nativeElement.addEventListener('scroll', _this.inlineScrollListener);
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}
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else {
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_this.windowScrollListener = _this.onWindowScroll.bind(_this);
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window.addEventListener('scroll', _this.windowScrollListener);
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}
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});
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};
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DataScroller.prototype.unbindScrollListener = function () {
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if (this.inlineScrollListener) {
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this.contentViewChild.nativeElement.removeEventListener('scroll', this.inlineScrollListener);
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}
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if (this.windowScrollListener) {
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window.removeEventListener('scroll', this.windowScrollListener);
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}
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if (this.loaderClickListener) {
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this.loaderClickListener();
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this.loaderClickListener = null;
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}
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};
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DataScroller.prototype.onInlineScroll = function () {
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var _this = this;
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var scrollTop = this.contentViewChild.nativeElement.scrollTop;
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var scrollHeight = this.contentViewChild.nativeElement.scrollHeight;
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var viewportHeight = this.contentViewChild.nativeElement.clientHeight;
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if ((scrollTop >= ((scrollHeight * this.buffer) - (viewportHeight)))) {
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if (this.shouldLoad()) {
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this.zone.run(function () {
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_this.load();
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});
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}
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}
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};
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DataScroller.prototype.onWindowScroll = function () {
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var _this = this;
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var docBody = document.body;
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var docElement = document.documentElement;
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var scrollTop = (window.pageYOffset || document.documentElement.scrollTop);
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var winHeight = docElement.clientHeight;
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var docHeight = Math.max(docBody.scrollHeight, docBody.offsetHeight, winHeight, docElement.scrollHeight, docElement.offsetHeight);
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if (scrollTop >= ((docHeight * this.buffer) - winHeight)) {
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if (this.shouldLoad()) {
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this.zone.run(function () {
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_this.load();
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});
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}
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}
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};
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DataScroller.prototype.ngOnDestroy = function () {
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this.unbindScrollListener();
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};
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__decorate([
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core_1.Input(),
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__metadata("design:type", Array)
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], DataScroller.prototype, "value", 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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], DataScroller.prototype, "rows", 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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], DataScroller.prototype, "lazy", 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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], DataScroller.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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], DataScroller.prototype, "styleClass", 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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], DataScroller.prototype, "buffer", 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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], DataScroller.prototype, "inline", 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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], DataScroller.prototype, "scrollHeight", 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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], DataScroller.prototype, "loader", 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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], DataScroller.prototype, "totalRecords", 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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], DataScroller.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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], DataScroller.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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], DataScroller.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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], DataScroller.prototype, "templates", void 0);
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__decorate([
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core_1.ViewChild('content'),
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__metadata("design:type", core_1.ElementRef)
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], DataScroller.prototype, "contentViewChild", 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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], DataScroller.prototype, "onLazyLoad", void 0);
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DataScroller = __decorate([
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core_1.Component({
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selector: 'p-dataScroller',
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template: "\n <div [ngClass]=\"{'ui-datascroller ui-widget': true, 'ui-datascroller-inline': inline}\" [ngStyle]=\"style\" [class]=\"styleClass\">\n <div class=\"ui-datascroller-header ui-widget-header ui-corner-top\" *ngIf=\"header\">\n <ng-content select=\"p-header\"></ng-content>\n </div>\n <div #content class=\"ui-datascroller-content ui-widget-content\" [ngStyle]=\"{'max-height': scrollHeight}\">\n <ul class=\"ui-datascroller-list\">\n <li *ngFor=\"let item of value | slice:first:(first + (page * rows)); trackBy: trackBy; let i = index\">\n <ng-container *ngTemplateOutlet=\"itemTemplate; context: {$implicit: item, index: i}\"></ng-container>\n </li>\n </ul>\n </div>\n <div class=\"ui-datascroller-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, core_1.Renderer2, core_1.NgZone])
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], DataScroller);
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return DataScroller;
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}());
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exports.DataScroller = DataScroller;
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var DataScrollerModule = /** @class */ (function () {
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function DataScrollerModule() {
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}
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DataScrollerModule = __decorate([
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core_1.NgModule({
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imports: [common_1.CommonModule],
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exports: [DataScroller, shared_1.SharedModule],
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declarations: [DataScroller]
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})
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], DataScrollerModule);
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return DataScrollerModule;
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}());
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exports.DataScrollerModule = DataScrollerModule;
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//# sourceMappingURL=datascroller.js.map
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