ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
217 lines • 29.1 kB
JavaScript
/**
* 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 { __decorate, __metadata } from "tslib";
import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ContentChildren, ElementRef, EventEmitter, Host, Input, NgZone, Optional, Output, QueryList, TemplateRef, ViewChild, ViewChildren, ViewEncapsulation } from '@angular/core';
import { slideMotion } from 'ng-zorro-antd/core/animation';
import { NzNoAnimationDirective } from 'ng-zorro-antd/core/no-animation';
import { InputBoolean } from 'ng-zorro-antd/core/util';
import { defer, merge, Subscription } from 'rxjs';
import { filter, switchMap, take } from 'rxjs/operators';
import { NzAutocompleteOptionComponent } from './autocomplete-option.component';
export class NzAutocompleteComponent {
constructor(changeDetectorRef, ngZone, noAnimation) {
this.changeDetectorRef = changeDetectorRef;
this.ngZone = ngZone;
this.noAnimation = noAnimation;
this.nzOverlayClassName = '';
this.nzOverlayStyle = {};
this.nzDefaultActiveFirstOption = true;
this.nzBackfill = false;
this.compareWith = (o1, o2) => o1 === o2;
this.selectionChange = new EventEmitter();
this.showPanel = true;
this.isOpen = false;
this.activeItemIndex = -1;
this.selectionChangeSubscription = Subscription.EMPTY;
this.optionMouseEnterSubscription = Subscription.EMPTY;
this.dataSourceChangeSubscription = Subscription.EMPTY;
/** Options changes listener */
this.optionSelectionChanges = defer(() => {
if (this.options) {
return merge(...this.options.map(option => option.selectionChange));
}
return this.ngZone.onStable.asObservable().pipe(take(1), switchMap(() => this.optionSelectionChanges));
});
this.optionMouseEnter = defer(() => {
if (this.options) {
return merge(...this.options.map(option => option.mouseEntered));
}
return this.ngZone.onStable.asObservable().pipe(take(1), switchMap(() => this.optionMouseEnter));
});
}
/**
* Options accessor, its source may be content or dataSource
*/
get options() {
// first dataSource
if (this.nzDataSource) {
return this.fromDataSourceOptions;
}
else {
return this.fromContentOptions;
}
}
ngAfterContentInit() {
if (!this.nzDataSource) {
this.optionsInit();
}
}
ngAfterViewInit() {
if (this.nzDataSource) {
this.optionsInit();
}
}
ngOnDestroy() {
this.dataSourceChangeSubscription.unsubscribe();
this.selectionChangeSubscription.unsubscribe();
this.optionMouseEnterSubscription.unsubscribe();
}
setVisibility() {
this.showPanel = !!this.options.length;
this.changeDetectorRef.markForCheck();
}
setActiveItem(index) {
const activeItem = this.options.toArray()[index];
if (activeItem && !activeItem.active) {
this.activeItem = activeItem;
this.activeItemIndex = index;
this.clearSelectedOptions(this.activeItem);
this.activeItem.setActiveStyles();
this.changeDetectorRef.markForCheck();
}
}
setNextItemActive() {
const nextIndex = this.activeItemIndex + 1 <= this.options.length - 1 ? this.activeItemIndex + 1 : 0;
this.setActiveItem(nextIndex);
}
setPreviousItemActive() {
const previousIndex = this.activeItemIndex - 1 < 0 ? this.options.length - 1 : this.activeItemIndex - 1;
this.setActiveItem(previousIndex);
}
getOptionIndex(value) {
return this.options.reduce((result, current, index) => {
return result === -1 ? (this.compareWith(value, current.nzValue) ? index : -1) : result;
}, -1);
}
getOption(value) {
return this.options.find(item => this.compareWith(value, item.nzValue)) || null;
}
optionsInit() {
this.setVisibility();
this.subscribeOptionChanges();
const changes = this.nzDataSource ? this.fromDataSourceOptions.changes : this.fromContentOptions.changes;
// async
this.dataSourceChangeSubscription = changes.subscribe(e => {
if (!e.dirty && this.isOpen) {
setTimeout(() => this.setVisibility());
}
this.subscribeOptionChanges();
});
}
/**
* Clear the status of options
*/
clearSelectedOptions(skip, deselect = false) {
this.options.forEach(option => {
if (option !== skip) {
if (deselect) {
option.deselect();
}
option.setInactiveStyles();
}
});
}
subscribeOptionChanges() {
this.selectionChangeSubscription.unsubscribe();
this.selectionChangeSubscription = this.optionSelectionChanges
.pipe(filter((event) => event.isUserInput))
.subscribe((event) => {
event.source.select();
event.source.setActiveStyles();
this.activeItem = event.source;
this.activeItemIndex = this.getOptionIndex(this.activeItem.nzValue);
this.clearSelectedOptions(event.source, true);
this.selectionChange.emit(event.source);
});
this.optionMouseEnterSubscription.unsubscribe();
this.optionMouseEnterSubscription = this.optionMouseEnter.subscribe((event) => {
event.setActiveStyles();
this.activeItem = event;
this.activeItemIndex = this.getOptionIndex(this.activeItem.nzValue);
this.clearSelectedOptions(event);
});
}
}
NzAutocompleteComponent.decorators = [
{ type: Component, args: [{
selector: 'nz-autocomplete',
exportAs: 'nzAutocomplete',
preserveWhitespaces: false,
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
template: `
<ng-template>
<div
#panel
class="ant-select-dropdown ant-select-dropdown-placement-bottomLeft"
[class.ant-select-dropdown-hidden]="!showPanel"
[ngClass]="nzOverlayClassName"
[ngStyle]="nzOverlayStyle"
[nzNoAnimation]="noAnimation?.nzNoAnimation"
[]="'enter'"
[@.disabled]="noAnimation?.nzNoAnimation"
>
<div style="max-height: 256px; overflow-y: auto; overflow-anchor: none;">
<div style="display: flex; flex-direction: column;">
<ng-template *ngTemplateOutlet="nzDataSource ? optionsTemplate : contentTemplate"></ng-template>
</div>
</div>
</div>
<ng-template #contentTemplate>
<ng-content></ng-content>
</ng-template>
<ng-template #optionsTemplate>
<nz-auto-option
*ngFor="let option of nzDataSource!"
[nzValue]="option"
[nzLabel]="option && $any(option).label ? $any(option).label : $any(option)"
>
{{ option && $any(option).label ? $any(option).label : $any(option) }}
</nz-auto-option>
</ng-template>
</ng-template>
`,
animations: [slideMotion]
},] }
];
NzAutocompleteComponent.ctorParameters = () => [
{ type: ChangeDetectorRef },
{ type: NgZone },
{ type: NzNoAnimationDirective, decorators: [{ type: Host }, { type: Optional }] }
];
NzAutocompleteComponent.propDecorators = {
nzWidth: [{ type: Input }],
nzOverlayClassName: [{ type: Input }],
nzOverlayStyle: [{ type: Input }],
nzDefaultActiveFirstOption: [{ type: Input }],
nzBackfill: [{ type: Input }],
compareWith: [{ type: Input }],
nzDataSource: [{ type: Input }],
selectionChange: [{ type: Output }],
fromContentOptions: [{ type: ContentChildren, args: [NzAutocompleteOptionComponent, { descendants: true },] }],
fromDataSourceOptions: [{ type: ViewChildren, args: [NzAutocompleteOptionComponent,] }],
template: [{ type: ViewChild, args: [TemplateRef, { static: false },] }],
panel: [{ type: ViewChild, args: ['panel', { static: false },] }],
content: [{ type: ViewChild, args: ['content', { static: false },] }]
};
__decorate([
InputBoolean(),
__metadata("design:type", Object)
], NzAutocompleteComponent.prototype, "nzDefaultActiveFirstOption", void 0);
__decorate([
InputBoolean(),
__metadata("design:type", Object)
], NzAutocompleteComponent.prototype, "nzBackfill", void 0);
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* 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  AfterContentInit,\n  AfterViewInit,\n  ChangeDetectionStrategy,\n  ChangeDetectorRef,\n  Component,\n  ContentChildren,\n  ElementRef,\n  EventEmitter,\n  Host,\n  Input,\n  NgZone,\n  OnDestroy,\n  Optional,\n  Output,\n  QueryList,\n  TemplateRef,\n  ViewChild,\n  ViewChildren,\n  ViewEncapsulation\n} from '@angular/core';\nimport { slideMotion } from 'ng-zorro-antd/core/animation';\nimport { NzNoAnimationDirective } from 'ng-zorro-antd/core/no-animation';\nimport { BooleanInput, CompareWith, NzSafeAny } from 'ng-zorro-antd/core/types';\nimport { InputBoolean } from 'ng-zorro-antd/core/util';\nimport { defer, merge, Observable, Subscription } from 'rxjs';\nimport { filter, switchMap, take } from 'rxjs/operators';\n\nimport { NzAutocompleteOptionComponent, NzOptionSelectionChange } from './autocomplete-option.component';\n\nexport interface AutocompleteDataSourceItem {\n  value: string;\n  label: string;\n}\n\nexport type AutocompleteDataSource = Array<AutocompleteDataSourceItem | string | number>;\n\n@Component({\n  selector: 'nz-autocomplete',\n  exportAs: 'nzAutocomplete',\n  preserveWhitespaces: false,\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  encapsulation: ViewEncapsulation.None,\n  template: `\n    <ng-template>\n      <div\n        #panel\n        class=\"ant-select-dropdown ant-select-dropdown-placement-bottomLeft\"\n        [class.ant-select-dropdown-hidden]=\"!showPanel\"\n        [ngClass]=\"nzOverlayClassName\"\n        [ngStyle]=\"nzOverlayStyle\"\n        [nzNoAnimation]=\"noAnimation?.nzNoAnimation\"\n        [@slideMotion]=\"'enter'\"\n        [@.disabled]=\"noAnimation?.nzNoAnimation\"\n      >\n        <div style=\"max-height: 256px; overflow-y: auto; overflow-anchor: none;\">\n          <div style=\"display: flex; flex-direction: column;\">\n            <ng-template *ngTemplateOutlet=\"nzDataSource ? optionsTemplate : contentTemplate\"></ng-template>\n          </div>\n        </div>\n      </div>\n      <ng-template #contentTemplate>\n        <ng-content></ng-content>\n      </ng-template>\n      <ng-template #optionsTemplate>\n        <nz-auto-option\n          *ngFor=\"let option of nzDataSource!\"\n          [nzValue]=\"option\"\n          [nzLabel]=\"option && $any(option).label ? $any(option).label : $any(option)\"\n        >\n          {{ option && $any(option).label ? $any(option).label : $any(option) }}\n        </nz-auto-option>\n      </ng-template>\n    </ng-template>\n  `,\n  animations: [slideMotion]\n})\nexport class NzAutocompleteComponent implements AfterContentInit, AfterViewInit, OnDestroy {\n  static ngAcceptInputType_nzDefaultActiveFirstOption: BooleanInput;\n  static ngAcceptInputType_nzBackfill: BooleanInput;\n\n  @Input() nzWidth?: number;\n  @Input() nzOverlayClassName = '';\n  @Input() nzOverlayStyle: { [key: string]: string } = {};\n  @Input() @InputBoolean() nzDefaultActiveFirstOption = true;\n  @Input() @InputBoolean() nzBackfill = false;\n  @Input() compareWith: CompareWith = (o1, o2) => o1 === o2;\n  @Input() nzDataSource?: AutocompleteDataSource;\n  @Output()\n  readonly selectionChange: EventEmitter<NzAutocompleteOptionComponent> = new EventEmitter<NzAutocompleteOptionComponent>();\n\n  showPanel: boolean = true;\n  isOpen: boolean = false;\n  activeItem!: NzAutocompleteOptionComponent;\n\n  /**\n   * Options accessor, its source may be content or dataSource\n   */\n  get options(): QueryList<NzAutocompleteOptionComponent> {\n    // first dataSource\n    if (this.nzDataSource) {\n      return this.fromDataSourceOptions;\n    } else {\n      return this.fromContentOptions;\n    }\n  }\n\n  /** Provided by content */\n  @ContentChildren(NzAutocompleteOptionComponent, { descendants: true })\n  fromContentOptions!: QueryList<NzAutocompleteOptionComponent>;\n  /** Provided by dataSource */\n  @ViewChildren(NzAutocompleteOptionComponent) fromDataSourceOptions!: QueryList<NzAutocompleteOptionComponent>;\n\n  /** cdk-overlay */\n  @ViewChild(TemplateRef, { static: false }) template?: TemplateRef<{}>;\n  @ViewChild('panel', { static: false }) panel?: ElementRef;\n  @ViewChild('content', { static: false }) content?: ElementRef;\n\n  private activeItemIndex: number = -1;\n  private selectionChangeSubscription = Subscription.EMPTY;\n  private optionMouseEnterSubscription = Subscription.EMPTY;\n  private dataSourceChangeSubscription = Subscription.EMPTY;\n  /** Options changes listener */\n  readonly optionSelectionChanges: Observable<NzOptionSelectionChange> = defer(() => {\n    if (this.options) {\n      return merge<NzOptionSelectionChange>(...this.options.map(option => option.selectionChange));\n    }\n    return this.ngZone.onStable.asObservable().pipe(\n      take(1),\n      switchMap(() => this.optionSelectionChanges)\n    );\n  });\n  readonly optionMouseEnter: Observable<NzAutocompleteOptionComponent> = defer(() => {\n    if (this.options) {\n      return merge<NzAutocompleteOptionComponent>(...this.options.map(option => option.mouseEntered));\n    }\n    return this.ngZone.onStable.asObservable().pipe(\n      take(1),\n      switchMap(() => this.optionMouseEnter)\n    );\n  });\n\n  constructor(\n    private changeDetectorRef: ChangeDetectorRef,\n    private ngZone: NgZone,\n    @Host() @Optional() public noAnimation?: NzNoAnimationDirective\n  ) {}\n\n  ngAfterContentInit(): void {\n    if (!this.nzDataSource) {\n      this.optionsInit();\n    }\n  }\n\n  ngAfterViewInit(): void {\n    if (this.nzDataSource) {\n      this.optionsInit();\n    }\n  }\n\n  ngOnDestroy(): void {\n    this.dataSourceChangeSubscription.unsubscribe();\n    this.selectionChangeSubscription.unsubscribe();\n    this.optionMouseEnterSubscription.unsubscribe();\n  }\n\n  setVisibility(): void {\n    this.showPanel = !!this.options.length;\n    this.changeDetectorRef.markForCheck();\n  }\n\n  setActiveItem(index: number): void {\n    const activeItem = this.options.toArray()[index];\n    if (activeItem && !activeItem.active) {\n      this.activeItem = activeItem;\n      this.activeItemIndex = index;\n      this.clearSelectedOptions(this.activeItem);\n      this.activeItem.setActiveStyles();\n      this.changeDetectorRef.markForCheck();\n    }\n  }\n\n  setNextItemActive(): void {\n    const nextIndex = this.activeItemIndex + 1 <= this.options.length - 1 ? this.activeItemIndex + 1 : 0;\n    this.setActiveItem(nextIndex);\n  }\n\n  setPreviousItemActive(): void {\n    const previousIndex = this.activeItemIndex - 1 < 0 ? this.options.length - 1 : this.activeItemIndex - 1;\n    this.setActiveItem(previousIndex);\n  }\n\n  getOptionIndex(value: NzSafeAny): number {\n    return this.options.reduce((result: number, current: NzAutocompleteOptionComponent, index: number) => {\n      return result === -1 ? (this.compareWith(value, current.nzValue) ? index : -1) : result;\n    }, -1)!;\n  }\n\n  getOption(value: NzSafeAny): NzAutocompleteOptionComponent | null {\n    return this.options.find(item => this.compareWith(value, item.nzValue)) || null;\n  }\n\n  private optionsInit(): void {\n    this.setVisibility();\n    this.subscribeOptionChanges();\n    const changes = this.nzDataSource ? this.fromDataSourceOptions.changes : this.fromContentOptions.changes;\n    // async\n    this.dataSourceChangeSubscription = changes.subscribe(e => {\n      if (!e.dirty && this.isOpen) {\n        setTimeout(() => this.setVisibility());\n      }\n      this.subscribeOptionChanges();\n    });\n  }\n\n  /**\n   * Clear the status of options\n   */\n  clearSelectedOptions(skip?: NzAutocompleteOptionComponent | null, deselect: boolean = false): void {\n    this.options.forEach(option => {\n      if (option !== skip) {\n        if (deselect) {\n          option.deselect();\n        }\n        option.setInactiveStyles();\n      }\n    });\n  }\n\n  private subscribeOptionChanges(): void {\n    this.selectionChangeSubscription.unsubscribe();\n    this.selectionChangeSubscription = this.optionSelectionChanges\n      .pipe(filter((event: NzOptionSelectionChange) => event.isUserInput))\n      .subscribe((event: NzOptionSelectionChange) => {\n        event.source.select();\n        event.source.setActiveStyles();\n        this.activeItem = event.source;\n        this.activeItemIndex = this.getOptionIndex(this.activeItem.nzValue);\n        this.clearSelectedOptions(event.source, true);\n        this.selectionChange.emit(event.source);\n      });\n\n    this.optionMouseEnterSubscription.unsubscribe();\n    this.optionMouseEnterSubscription = this.optionMouseEnter.subscribe((event: NzAutocompleteOptionComponent) => {\n      event.setActiveStyles();\n      this.activeItem = event;\n      this.activeItemIndex = this.getOptionIndex(this.activeItem.nzValue);\n      this.clearSelectedOptions(event);\n    });\n  }\n}\n"]}