| (function (global, factory) { |
| typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/common'), require('@angular/cdk/portal'), require('@angular/platform-browser'), require('rxjs'), require('rxjs/operators')) : |
| typeof define === 'function' && define.amd ? define('@covalent/core/virtual-scroll', ['exports', '@angular/core', '@angular/common', '@angular/cdk/portal', '@angular/platform-browser', 'rxjs', 'rxjs/operators'], factory) : |
| (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.covalent = global.covalent || {}, global.covalent.core = global.covalent.core || {}, global.covalent.core['virtual-scroll'] = {}), global.ng.core, global.ng.common, global.ng.cdk.portal, global.ng.platformBrowser, global.rxjs, global.rxjs.operators)); |
| }(this, (function (exports, core, common, portal, platformBrowser, rxjs, operators) { 'use strict'; |
| |
| /*! ***************************************************************************** |
| Copyright (c) Microsoft Corporation. |
| |
| Permission to use, copy, modify, and/or distribute this software for any |
| purpose with or without fee is hereby granted. |
| |
| THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH |
| REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY |
| AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, |
| INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM |
| LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR |
| OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| PERFORMANCE OF THIS SOFTWARE. |
| ***************************************************************************** */ |
| /* global Reflect, Promise */ |
| var extendStatics = function (d, b) { |
| extendStatics = Object.setPrototypeOf || |
| ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || |
| function (d, b) { for (var p in b) |
| if (Object.prototype.hasOwnProperty.call(b, p)) |
| d[p] = b[p]; }; |
| return extendStatics(d, b); |
| }; |
| function __extends(d, b) { |
| extendStatics(d, b); |
| function __() { this.constructor = d; } |
| d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); |
| } |
| var __assign = function () { |
| __assign = Object.assign || function __assign(t) { |
| for (var s, i = 1, n = arguments.length; i < n; i++) { |
| s = arguments[i]; |
| for (var p in s) |
| if (Object.prototype.hasOwnProperty.call(s, p)) |
| t[p] = s[p]; |
| } |
| return t; |
| }; |
| return __assign.apply(this, arguments); |
| }; |
| function __rest(s, e) { |
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| } |
| if (op[0] & 5) |
| throw op[1]; |
| return { value: op[0] ? op[1] : void 0, done: true }; |
| } |
| } |
| var __createBinding = Object.create ? (function (o, m, k, k2) { |
| if (k2 === undefined) |
| k2 = k; |
| Object.defineProperty(o, k2, { enumerable: true, get: function () { return m[k]; } }); |
| }) : (function (o, m, k, k2) { |
| if (k2 === undefined) |
| k2 = k; |
| o[k2] = m[k]; |
| }); |
| function __exportStar(m, o) { |
| for (var p in m) |
| if (p !== "default" && !Object.prototype.hasOwnProperty.call(o, p)) |
| __createBinding(o, m, p); |
| } |
| function __values(o) { |
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| next: function () { |
| if (o && i >= o.length) |
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| } |
| }; |
| throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined."); |
| } |
| function __read(o, n) { |
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| if (!m) |
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| for (var ar = [], i = 0; i < arguments.length; i++) |
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| function __asyncGenerator(thisArg, _arguments, generator) { |
| if (!Symbol.asyncIterator) |
| throw new TypeError("Symbol.asyncIterator is not defined."); |
| var g = generator.apply(thisArg, _arguments || []), i, q = []; |
| return i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i; |
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| step(g[n](v)); |
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| function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; } |
| function settle(resolve, reject, d, v) { Promise.resolve(v).then(function (v) { resolve({ value: v, done: d }); }, reject); } |
| } |
| function __makeTemplateObject(cooked, raw) { |
| if (Object.defineProperty) { |
| Object.defineProperty(cooked, "raw", { value: raw }); |
| } |
| else { |
| cooked.raw = raw; |
| } |
| return cooked; |
| } |
| ; |
| var __setModuleDefault = Object.create ? (function (o, v) { |
| Object.defineProperty(o, "default", { enumerable: true, value: v }); |
| }) : function (o, v) { |
| o["default"] = v; |
| }; |
| function __importStar(mod) { |
| if (mod && mod.__esModule) |
| return mod; |
| var result = {}; |
| if (mod != null) |
| for (var k in mod) |
| if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) |
| __createBinding(result, mod, k); |
| __setModuleDefault(result, mod); |
| return result; |
| } |
| function __importDefault(mod) { |
| return (mod && mod.__esModule) ? mod : { default: mod }; |
| } |
| function __classPrivateFieldGet(receiver, privateMap) { |
| if (!privateMap.has(receiver)) { |
| throw new TypeError("attempted to get private field on non-instance"); |
| } |
| return privateMap.get(receiver); |
| } |
| function __classPrivateFieldSet(receiver, privateMap, value) { |
| if (!privateMap.has(receiver)) { |
| throw new TypeError("attempted to set private field on non-instance"); |
| } |
| privateMap.set(receiver, value); |
| return value; |
| } |
| |
| var TdVirtualScrollRowDirective = /** @class */ (function (_super) { |
| __extends(TdVirtualScrollRowDirective, _super); |
| /** |
| * @param {?} templateRef |
| * @param {?} viewContainerRef |
| */ |
| function TdVirtualScrollRowDirective(templateRef, viewContainerRef) { |
| return _super.call(this, templateRef, viewContainerRef) || this; |
| } |
| return TdVirtualScrollRowDirective; |
| }(portal.TemplatePortalDirective)); |
| TdVirtualScrollRowDirective.decorators = [ |
| { type: core.Directive, args: [{ selector: '[tdVirtualScrollRow]' },] } |
| ]; |
| /** @nocollapse */ |
| TdVirtualScrollRowDirective.ctorParameters = function () { return [ |
| { type: core.TemplateRef }, |
| { type: core.ViewContainerRef } |
| ]; }; |
| |
| /** |
| * @fileoverview added by tsickle |
| * Generated from: virtual-scroll-container.component.ts |
| * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| /** @type {?} */ |
| var TD_VIRTUAL_OFFSET = 2; |
| /** @type {?} */ |
| var SCROLL_DEBOUNCE = 200; |
| /** |
| * @record |
| */ |
| function ITdVirtualScrollBottomEvent() { } |
| if (false) { |
| /** @type {?} */ |
| ITdVirtualScrollBottomEvent.prototype.lastRow; |
| /** @type {?} */ |
| ITdVirtualScrollBottomEvent.prototype.lastIndex; |
| } |
| var TdVirtualScrollContainerComponent = /** @class */ (function () { |
| /** |
| * @param {?} _elementRef |
| * @param {?} _domSanitizer |
| * @param {?} _renderer |
| * @param {?} _changeDetectorRef |
| */ |
| function TdVirtualScrollContainerComponent(_elementRef, _domSanitizer, _renderer, _changeDetectorRef) { |
| this._elementRef = _elementRef; |
| this._domSanitizer = _domSanitizer; |
| this._renderer = _renderer; |
| this._changeDetectorRef = _changeDetectorRef; |
| this._subs = []; |
| this._bottom = new rxjs.Subject(); |
| this._initialized = false; |
| this._totalHeight = 0; |
| this._hostHeight = 0; |
| this._scrollVerticalOffset = 0; |
| this._fromRow = 0; |
| this._toRow = 0; |
| /** |
| * bottom: function |
| * Method to be executed when user scrolled to the last item of the list. |
| * An [ITdVirtualScrollBottomEvent] event is emitted |
| */ |
| this.bottom = new core.EventEmitter(); |
| /** |
| * trackBy?: TrackByFunction |
| * This accepts the same trackBy function [ngFor] does. |
| * https://angular.io/api/core/TrackByFunction |
| */ |
| this.trackBy = ( /** |
| * @param {?} index |
| * @param {?} item |
| * @return {?} |
| */function (index, item) { |
| return item; |
| }); |
| } |
| Object.defineProperty(TdVirtualScrollContainerComponent.prototype, "data", { |
| /** |
| * @return {?} |
| */ |
| get: function () { |
| return this._data; |
| }, |
| /** |
| * data: any[] |
| * List of items to virtually iterate on. |
| * @param {?} data |
| * @return {?} |
| */ |
| set: function (data) { |
| this._data = data; |
| if (this._initialized) { |
| this._calculateVirtualRows(); |
| } |
| this._changeDetectorRef.markForCheck(); |
| }, |
| enumerable: false, |
| configurable: true |
| }); |
| Object.defineProperty(TdVirtualScrollContainerComponent.prototype, "virtualData", { |
| /** |
| * @return {?} |
| */ |
| get: function () { |
| return this._virtualData; |
| }, |
| enumerable: false, |
| configurable: true |
| }); |
| Object.defineProperty(TdVirtualScrollContainerComponent.prototype, "rowHeight", { |
| /** |
| * @return {?} |
| */ |
| get: function () { |
| if (this._rows && this._rows.toArray()[0]) { |
| return this._rows.toArray()[0].nativeElement.getBoundingClientRect().height; |
| } |
| return 0; |
| }, |
| enumerable: false, |
| configurable: true |
| }); |
| Object.defineProperty(TdVirtualScrollContainerComponent.prototype, "totalHeight", { |
| /** |
| * @return {?} |
| */ |
| get: function () { |
| return this._totalHeight; |
| }, |
| enumerable: false, |
| configurable: true |
| }); |
| Object.defineProperty(TdVirtualScrollContainerComponent.prototype, "fromRow", { |
| /** |
| * @return {?} |
| */ |
| get: function () { |
| return this._fromRow; |
| }, |
| enumerable: false, |
| configurable: true |
| }); |
| Object.defineProperty(TdVirtualScrollContainerComponent.prototype, "toRow", { |
| /** |
| * @return {?} |
| */ |
| get: function () { |
| return this._toRow; |
| }, |
| enumerable: false, |
| configurable: true |
| }); |
| Object.defineProperty(TdVirtualScrollContainerComponent.prototype, "offsetTransform", { |
| /** |
| * @return {?} |
| */ |
| get: function () { |
| return this._offsetTransform; |
| }, |
| enumerable: false, |
| configurable: true |
| }); |
| /** |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.ngAfterViewInit = function () { |
| var _this = this; |
| this._subs.push(this._rows.changes.subscribe(( /** |
| * @return {?} |
| */function () { |
| _this._calculateVirtualRows(); |
| }))); |
| this._initialized = true; |
| this._calculateVirtualRows(); |
| this._subs.push(this._bottom.pipe(operators.debounceTime(SCROLL_DEBOUNCE)).subscribe(( /** |
| * @return {?} |
| */function () { |
| _this.bottom.emit({ |
| lastRow: _this._data[_this._data.length - 1], |
| lastIndex: _this.toRow, |
| }); |
| }))); |
| }; |
| /** |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.ngAfterViewChecked = function () { |
| /** @type {?} */ |
| var newHostHeight = this._elementRef.nativeElement.getBoundingClientRect().height; |
| if (this._hostHeight !== newHostHeight) { |
| this._hostHeight = newHostHeight; |
| if (this._initialized) { |
| this._calculateVirtualRows(); |
| } |
| } |
| }; |
| /** |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.ngOnDestroy = function () { |
| if (this._subs) { |
| this._subs.forEach(( /** |
| * @param {?} sub |
| * @return {?} |
| */function (sub) { |
| sub.unsubscribe(); |
| })); |
| } |
| }; |
| /** |
| * @param {?} event |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.handleScroll = function (event) { |
| /** @type {?} */ |
| var element = ( /** @type {?} */(event.target)); |
| if (element) { |
| /** @type {?} */ |
| var verticalScroll = element.scrollTop; |
| if (this._scrollVerticalOffset !== verticalScroll) { |
| this._scrollVerticalOffset = verticalScroll; |
| if (this._initialized) { |
| this._calculateVirtualRows(); |
| } |
| } |
| if (this._initialized && this._data.length * this.rowHeight - (verticalScroll + this._hostHeight) === 0) { |
| // check to see if bottom was hit to throw the bottom event |
| this._bottom.next(); |
| } |
| } |
| }; |
| /** |
| * Method to refresh and recalculate the virtual rows |
| * e.g. after changing the [data] content |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.refresh = function () { |
| this._calculateVirtualRows(); |
| }; |
| /** |
| * Method to scroll to a specific row of the list. |
| * @param {?} row |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.scrollTo = function (row) { |
| this._elementRef.nativeElement.scrollTop = row * this.rowHeight; |
| this._changeDetectorRef.markForCheck(); |
| }; |
| /** |
| * Method to scroll to the start of the list. |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.scrollToStart = function () { |
| this.scrollTo(0); |
| this._changeDetectorRef.markForCheck(); |
| }; |
| /** |
| * Method to scroll to the end of the list. |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.scrollToEnd = function () { |
| this.scrollTo(this.totalHeight / this.rowHeight); |
| this._changeDetectorRef.markForCheck(); |
| }; |
| /** |
| * @private |
| * @return {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype._calculateVirtualRows = function () { |
| var _this = this; |
| if (this._data) { |
| this._totalHeight = this._data.length * this.rowHeight; |
| /** @type {?} */ |
| var fromRow = Math.floor(this._scrollVerticalOffset / this.rowHeight) - TD_VIRTUAL_OFFSET; |
| this._fromRow = fromRow > 0 ? fromRow : 0; |
| /** @type {?} */ |
| var range = Math.floor(this._hostHeight / this.rowHeight) + TD_VIRTUAL_OFFSET * 2; |
| /** @type {?} */ |
| var toRow = range + this.fromRow; |
| if (isFinite(toRow) && toRow > this._data.length) { |
| toRow = this._data.length; |
| } |
| else if (!isFinite(toRow)) { |
| toRow = TD_VIRTUAL_OFFSET; |
| } |
| this._toRow = toRow; |
| } |
| else { |
| this._totalHeight = 0; |
| this._fromRow = 0; |
| this._toRow = 0; |
| } |
| /** @type {?} */ |
| var offset = 0; |
| if (this._scrollVerticalOffset > TD_VIRTUAL_OFFSET * this.rowHeight) { |
| offset = this.fromRow * this.rowHeight; |
| } |
| this._offsetTransform = this._domSanitizer.bypassSecurityTrustStyle('translateY(' + (offset - this.totalHeight) + 'px)'); |
| if (this._data) { |
| this._virtualData = this.data.slice(this.fromRow, this.toRow); |
| } |
| // mark for check at the end of the queue so we are sure |
| // that the changes will be marked |
| Promise.resolve().then(( /** |
| * @return {?} |
| */function () { |
| _this._changeDetectorRef.markForCheck(); |
| })); |
| }; |
| return TdVirtualScrollContainerComponent; |
| }()); |
| TdVirtualScrollContainerComponent.decorators = [ |
| { type: core.Component, args: [{ |
| selector: 'td-virtual-scroll-container', |
| template: "<div [style.height.px]=\"totalHeight\"></div>\n<div [style.transform]=\"offsetTransform\" [style.position]=\"'absolute'\" [style.width.%]=\"100\">\n <ng-template let-row let-index=\"index\" ngFor [ngForOf]=\"virtualData\" [ngForTrackBy]=\"trackBy\">\n <div #rowElement [style.width.%]=\"100\">\n <ng-template\n *ngIf=\"_rowTemplate\"\n [ngTemplateOutlet]=\"_rowTemplate.templateRef\"\n [ngTemplateOutletContext]=\"{\n row: row,\n index: fromRow + index,\n first: fromRow + index === 0,\n last: fromRow + index === data.length - 1,\n odd: (fromRow + index + 1) % 2 === 1,\n even: (fromRow + index + 1) % 2 === 0\n }\"\n ></ng-template>\n </div>\n </ng-template>\n</div>\n", |
| changeDetection: core.ChangeDetectionStrategy.OnPush, |
| styles: [":host{display:block;height:100%;overflow:auto;position:relative;width:100%}"] |
| }] } |
| ]; |
| /** @nocollapse */ |
| TdVirtualScrollContainerComponent.ctorParameters = function () { return [ |
| { type: core.ElementRef }, |
| { type: platformBrowser.DomSanitizer }, |
| { type: core.Renderer2 }, |
| { type: core.ChangeDetectorRef } |
| ]; }; |
| TdVirtualScrollContainerComponent.propDecorators = { |
| data: [{ type: core.Input, args: ['data',] }], |
| bottom: [{ type: core.Output }], |
| _rows: [{ type: core.ViewChildren, args: ['rowElement',] }], |
| _rowTemplate: [{ type: core.ContentChild, args: [TdVirtualScrollRowDirective,] }], |
| trackBy: [{ type: core.Input }], |
| handleScroll: [{ type: core.HostListener, args: ['scroll', ['$event'],] }] |
| }; |
| if (false) { |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._subs; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._bottom; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._initialized; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._totalHeight; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._hostHeight; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._scrollVerticalOffset; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._offsetTransform; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._fromRow; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._toRow; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._data; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._virtualData; |
| /** |
| * bottom: function |
| * Method to be executed when user scrolled to the last item of the list. |
| * An [ITdVirtualScrollBottomEvent] event is emitted |
| * @type {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.bottom; |
| /** @type {?} */ |
| TdVirtualScrollContainerComponent.prototype._rows; |
| /** @type {?} */ |
| TdVirtualScrollContainerComponent.prototype._rowTemplate; |
| /** |
| * trackBy?: TrackByFunction |
| * This accepts the same trackBy function [ngFor] does. |
| * https://angular.io/api/core/TrackByFunction |
| * @type {?} |
| */ |
| TdVirtualScrollContainerComponent.prototype.trackBy; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._elementRef; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._domSanitizer; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._renderer; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdVirtualScrollContainerComponent.prototype._changeDetectorRef; |
| } |
| |
| /** |
| * @fileoverview added by tsickle |
| * Generated from: virtual-scroll.module.ts |
| * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| /** @type {?} */ |
| var TD_VIRTUAL_SCROLL = [TdVirtualScrollRowDirective, TdVirtualScrollContainerComponent]; |
| var CovalentVirtualScrollModule = /** @class */ (function () { |
| function CovalentVirtualScrollModule() { |
| } |
| return CovalentVirtualScrollModule; |
| }()); |
| CovalentVirtualScrollModule.decorators = [ |
| { type: core.NgModule, args: [{ |
| imports: [common.CommonModule], |
| declarations: [TD_VIRTUAL_SCROLL], |
| exports: [TD_VIRTUAL_SCROLL], |
| },] } |
| ]; |
| |
| /** |
| * @fileoverview added by tsickle |
| * Generated from: public-api.ts |
| * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * @fileoverview added by tsickle |
| * Generated from: index.ts |
| * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| /** |
| * @fileoverview added by tsickle |
| * Generated from: covalent-core-virtual-scroll.ts |
| * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| |
| exports.CovalentVirtualScrollModule = CovalentVirtualScrollModule; |
| exports.TdVirtualScrollContainerComponent = TdVirtualScrollContainerComponent; |
| exports.TdVirtualScrollRowDirective = TdVirtualScrollRowDirective; |
| |
| Object.defineProperty(exports, '__esModule', { value: true }); |
| |
| }))); |
| //# sourceMappingURL=covalent-core-virtual-scroll.umd.js.map |
