ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
200 lines • 18.5 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @license
* Copyright Alibaba.com All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
*/
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ElementRef, EventEmitter, Input, NgZone, Output, QueryList, TemplateRef, ViewChild, ViewChildren, ViewEncapsulation } from '@angular/core';
import { fromEvent, Subject } from 'rxjs';
import { filter, map, pairwise, takeUntil } from 'rxjs/operators';
import { NzOptionLiComponent } from './nz-option-li.component';
import { NzSelectService } from './nz-select.service';
export class NzOptionContainerComponent {
/**
* @param {?} nzSelectService
* @param {?} cdr
* @param {?} ngZone
*/
constructor(nzSelectService, cdr, ngZone) {
this.nzSelectService = nzSelectService;
this.cdr = cdr;
this.ngZone = ngZone;
this.destroy$ = new Subject();
this.lastScrollTop = 0;
this.nzScrollToBottom = new EventEmitter();
}
/**
* @param {?} option
* @return {?}
*/
scrollIntoViewIfNeeded(option) {
// delay after open
setTimeout((/**
* @return {?}
*/
() => {
if (this.listOfNzOptionLiComponent && this.listOfNzOptionLiComponent.length && option) {
/** @type {?} */
const targetOption = this.listOfNzOptionLiComponent.find((/**
* @param {?} o
* @return {?}
*/
o => this.nzSelectService.compareWith(o.nzOption.nzValue, option.nzValue)));
// tslint:disable:no-any
if (targetOption && targetOption.el && ((/** @type {?} */ (targetOption.el))).scrollIntoViewIfNeeded) {
((/** @type {?} */ (targetOption.el))).scrollIntoViewIfNeeded(false);
}
}
}));
}
/**
* @param {?} _index
* @param {?} option
* @return {?}
*/
trackLabel(_index, option) {
return option.nzLabel;
}
// tslint:disable-next-line:no-any
/**
* @param {?} _index
* @param {?} option
* @return {?}
*/
trackValue(_index, option) {
return option.nzValue;
}
/**
* @return {?}
*/
ngOnInit() {
this.nzSelectService.activatedOption$.pipe(takeUntil(this.destroy$)).subscribe((/**
* @param {?} option
* @return {?}
*/
option => {
this.scrollIntoViewIfNeeded((/** @type {?} */ (option)));
}));
this.nzSelectService.check$.pipe(takeUntil(this.destroy$)).subscribe((/**
* @return {?}
*/
() => {
this.cdr.markForCheck();
}));
this.ngZone.runOutsideAngular((/**
* @return {?}
*/
() => {
/** @type {?} */
const ul = this.dropdownUl.nativeElement;
fromEvent(ul, 'scroll')
.pipe(takeUntil(this.destroy$))
.subscribe((/**
* @param {?} e
* @return {?}
*/
e => {
e.preventDefault();
e.stopPropagation();
if (ul && ul.scrollTop > this.lastScrollTop && ul.scrollHeight < ul.clientHeight + ul.scrollTop + 10) {
this.lastScrollTop = ul.scrollTop;
this.ngZone.run((/**
* @return {?}
*/
() => {
this.nzScrollToBottom.emit();
}));
}
}));
}));
}
/**
* @return {?}
*/
ngAfterViewInit() {
this.listOfNzOptionLiComponent.changes
.pipe(map((/**
* @param {?} list
* @return {?}
*/
list => list.length)), pairwise(), filter((/**
* @param {?} __0
* @return {?}
*/
([before, after]) => after < before)), takeUntil(this.destroy$))
.subscribe((/**
* @return {?}
*/
() => (this.lastScrollTop = 0)));
}
/**
* @return {?}
*/
ngOnDestroy() {
this.destroy$.next();
this.destroy$.complete();
}
}
NzOptionContainerComponent.decorators = [
{ type: Component, args: [{
selector: '[nz-option-container]',
exportAs: 'nzOptionContainer',
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
preserveWhitespaces: false,
template: "<ul #dropdownUl\n class=\"ant-select-dropdown-menu ant-select-dropdown-menu-root ant-select-dropdown-menu-vertical\"\n role=\"menu\"\n tabindex=\"0\">\n <li *ngIf=\"nzSelectService.isShowNotFound\"\n nz-select-unselectable\n class=\"ant-select-dropdown-menu-item ant-select-dropdown-menu-item-disabled\">\n <nz-embed-empty [nzComponentName]=\"'select'\" [specificContent]=\"nzNotFoundContent\"></nz-embed-empty>\n </li>\n <li nz-option-li\n *ngIf=\"nzSelectService.addedTagOption\"\n [nzMenuItemSelectedIcon]=\"nzMenuItemSelectedIcon\"\n [nzOption]=\"nzSelectService.addedTagOption\">\n </li>\n <ng-container *ngFor=\"let option of nzSelectService.listOfNzOptionComponent | nzFilterOption : nzSelectService.searchValue : nzSelectService.filterOption : nzSelectService.serverSearch; trackBy: trackValue\">\n <li nz-option-li\n *ngIf=\"!option.nzHide\"\n [nzMenuItemSelectedIcon]=\"nzMenuItemSelectedIcon\"\n [nzOption]=\"option\">\n </li>\n </ng-container>\n <li class=\"ant-select-dropdown-menu-item-group\"\n *ngFor=\"let group of nzSelectService.listOfNzOptionGroupComponent | nzFilterGroupOption : nzSelectService.searchValue : nzSelectService.filterOption :nzSelectService.serverSearch; trackBy: trackLabel\">\n <div class=\"ant-select-dropdown-menu-item-group-title\"\n [attr.title]=\"group.isLabelString ? group.nzLabel : ''\">\n <ng-container *nzStringTemplateOutlet=\"group.nzLabel\"> {{group.nzLabel}} </ng-container>\n </div>\n <ul class=\"ant-select-dropdown-menu-item-group-list\">\n <ng-container *ngFor=\"let option of group.listOfNzOptionComponent | nzFilterOption : nzSelectService.searchValue : nzSelectService.filterOption :nzSelectService.serverSearch; trackBy: trackValue\">\n <li nz-option-li\n *ngIf=\"!option.nzHide\"\n [nzMenuItemSelectedIcon]=\"nzMenuItemSelectedIcon\"\n [nzOption]=\"option\">\n </li>\n </ng-container>\n </ul>\n </li>\n <li nz-option-li\n *ngFor=\"let option of nzSelectService.listOfTagOption | nzFilterOption : nzSelectService.searchValue : nzSelectService.filterOption : nzSelectService.serverSearch; trackBy: trackValue \"\n [nzMenuItemSelectedIcon]=\"nzMenuItemSelectedIcon\"\n [nzOption]=\"option\">\n </li>\n</ul>\n"
}] }
];
/** @nocollapse */
NzOptionContainerComponent.ctorParameters = () => [
{ type: NzSelectService },
{ type: ChangeDetectorRef },
{ type: NgZone }
];
NzOptionContainerComponent.propDecorators = {
listOfNzOptionLiComponent: [{ type: ViewChildren, args: [NzOptionLiComponent,] }],
dropdownUl: [{ type: ViewChild, args: ['dropdownUl', { static: true },] }],
nzNotFoundContent: [{ type: Input }],
nzMenuItemSelectedIcon: [{ type: Input }],
nzScrollToBottom: [{ type: Output }]
};
if (false) {
/**
* @type {?}
* @private
*/
NzOptionContainerComponent.prototype.destroy$;
/**
* @type {?}
* @private
*/
NzOptionContainerComponent.prototype.lastScrollTop;
/** @type {?} */
NzOptionContainerComponent.prototype.listOfNzOptionLiComponent;
/** @type {?} */
NzOptionContainerComponent.prototype.dropdownUl;
/** @type {?} */
NzOptionContainerComponent.prototype.nzNotFoundContent;
/** @type {?} */
NzOptionContainerComponent.prototype.nzMenuItemSelectedIcon;
/** @type {?} */
NzOptionContainerComponent.prototype.nzScrollToBottom;
/** @type {?} */
NzOptionContainerComponent.prototype.nzSelectService;
/**
* @type {?}
* @private
*/
NzOptionContainerComponent.prototype.cdr;
/**
* @type {?}
* @private
*/
NzOptionContainerComponent.prototype.ngZone;
}
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* @license\n * Copyright Alibaba.com All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE\n */\n\nimport {\n  AfterViewInit,\n  ChangeDetectionStrategy,\n  ChangeDetectorRef,\n  Component,\n  ElementRef,\n  EventEmitter,\n  Input,\n  NgZone,\n  OnDestroy,\n  OnInit,\n  Output,\n  QueryList,\n  TemplateRef,\n  ViewChild,\n  ViewChildren,\n  ViewEncapsulation\n} from '@angular/core';\nimport { fromEvent, Subject } from 'rxjs';\nimport { filter, map, pairwise, takeUntil } from 'rxjs/operators';\nimport { NzOptionGroupComponent } from './nz-option-group.component';\nimport { NzOptionLiComponent } from './nz-option-li.component';\nimport { NzOptionComponent } from './nz-option.component';\nimport { NzSelectService } from './nz-select.service';\n\n@Component({\n  selector: '[nz-option-container]',\n  exportAs: 'nzOptionContainer',\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  encapsulation: ViewEncapsulation.None,\n  preserveWhitespaces: false,\n  templateUrl: './nz-option-container.component.html'\n})\nexport class NzOptionContainerComponent implements OnDestroy, OnInit, AfterViewInit {\n  private destroy$ = new Subject();\n  private lastScrollTop = 0;\n  @ViewChildren(NzOptionLiComponent) listOfNzOptionLiComponent: QueryList<NzOptionLiComponent>;\n  @ViewChild('dropdownUl', { static: true }) dropdownUl: ElementRef<HTMLUListElement>;\n  @Input() nzNotFoundContent: string;\n  @Input() nzMenuItemSelectedIcon: TemplateRef<void>;\n  @Output() readonly nzScrollToBottom = new EventEmitter<void>();\n\n  scrollIntoViewIfNeeded(option: NzOptionComponent): void {\n    // delay after open\n    setTimeout(() => {\n      if (this.listOfNzOptionLiComponent && this.listOfNzOptionLiComponent.length && option) {\n        const targetOption = this.listOfNzOptionLiComponent.find(o =>\n          this.nzSelectService.compareWith(o.nzOption.nzValue, option.nzValue)\n        );\n        // tslint:disable:no-any\n        if (targetOption && targetOption.el && (targetOption.el as any).scrollIntoViewIfNeeded) {\n          (targetOption.el as any).scrollIntoViewIfNeeded(false);\n        }\n      }\n    });\n  }\n\n  trackLabel(_index: number, option: NzOptionGroupComponent): string | TemplateRef<void> {\n    return option.nzLabel;\n  }\n\n  // tslint:disable-next-line:no-any\n  trackValue(_index: number, option: NzOptionComponent): any {\n    return option.nzValue;\n  }\n\n  constructor(public nzSelectService: NzSelectService, private cdr: ChangeDetectorRef, private ngZone: NgZone) {}\n\n  ngOnInit(): void {\n    this.nzSelectService.activatedOption$.pipe(takeUntil(this.destroy$)).subscribe(option => {\n      this.scrollIntoViewIfNeeded(option!);\n    });\n    this.nzSelectService.check$.pipe(takeUntil(this.destroy$)).subscribe(() => {\n      this.cdr.markForCheck();\n    });\n    this.ngZone.runOutsideAngular(() => {\n      const ul = this.dropdownUl.nativeElement;\n      fromEvent<MouseEvent>(ul, 'scroll')\n        .pipe(takeUntil(this.destroy$))\n        .subscribe(e => {\n          e.preventDefault();\n          e.stopPropagation();\n          if (ul && ul.scrollTop > this.lastScrollTop && ul.scrollHeight < ul.clientHeight + ul.scrollTop + 10) {\n            this.lastScrollTop = ul.scrollTop;\n            this.ngZone.run(() => {\n              this.nzScrollToBottom.emit();\n            });\n          }\n        });\n    });\n  }\n\n  ngAfterViewInit(): void {\n    this.listOfNzOptionLiComponent.changes\n      .pipe(\n        map(list => list.length),\n        pairwise(),\n        filter(([before, after]) => after < before),\n        takeUntil(this.destroy$)\n      )\n      .subscribe(() => (this.lastScrollTop = 0));\n  }\n\n  ngOnDestroy(): void {\n    this.destroy$.next();\n    this.destroy$.complete();\n  }\n}\n"]}