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ng-zorro-antd

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An enterprise-class UI components based on Ant Design and Angular

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/** * 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 { BACKSPACE } from '@angular/cdk/keycodes'; import { ChangeDetectionStrategy, Component, ElementRef, EventEmitter, Host, Input, Optional, Output, ViewChild, ViewEncapsulation } from '@angular/core'; import { NzNoAnimationDirective } from 'ng-zorro-antd/core/no-animation'; import { NzSelectSearchComponent } from './select-search.component'; export class NzSelectTopControlComponent { constructor(elementRef, noAnimation) { this.elementRef = elementRef; this.noAnimation = noAnimation; this.nzId = null; this.showSearch = false; this.placeHolder = null; this.open = false; this.maxTagCount = Infinity; this.autofocus = false; this.disabled = false; this.mode = 'default'; this.customTemplate = null; this.maxTagPlaceholder = null; this.removeIcon = null; this.listOfTopItem = []; this.tokenSeparators = []; this.tokenize = new EventEmitter(); this.inputValueChange = new EventEmitter(); this.deleteItem = new EventEmitter(); this.listOfSlicedItem = []; this.isShowPlaceholder = true; this.isShowSingleLabel = false; this.isComposing = false; this.inputValue = null; // TODO: move to host after View Engine deprecation this.elementRef.nativeElement.classList.add('ant-select-selector'); } onHostKeydown(e) { const inputValue = e.target.value; if (e.keyCode === BACKSPACE && this.mode !== 'default' && !inputValue && this.listOfTopItem.length > 0) { e.preventDefault(); this.onDeleteItem(this.listOfTopItem[this.listOfTopItem.length - 1]); } } updateTemplateVariable() { const isSelectedValueEmpty = this.listOfTopItem.length === 0; this.isShowPlaceholder = isSelectedValueEmpty && !this.isComposing && !this.inputValue; this.isShowSingleLabel = !isSelectedValueEmpty && !this.isComposing && !this.inputValue; } isComposingChange(isComposing) { this.isComposing = isComposing; this.updateTemplateVariable(); } onInputValueChange(value) { if (value !== this.inputValue) { this.inputValue = value; this.updateTemplateVariable(); this.inputValueChange.emit(value); this.tokenSeparate(value, this.tokenSeparators); } } tokenSeparate(inputValue, tokenSeparators) { const includesSeparators = (str, separators) => { // tslint:disable-next-line:prefer-for-of for (let i = 0; i < separators.length; ++i) { if (str.lastIndexOf(separators[i]) > 0) { return true; } } return false; }; const splitBySeparators = (str, separators) => { const reg = new RegExp(`[${separators.join()}]`); const array = str.split(reg).filter(token => token); return [...new Set(array)]; }; if (inputValue && inputValue.length && tokenSeparators.length && this.mode !== 'default' && includesSeparators(inputValue, tokenSeparators)) { const listOfLabel = splitBySeparators(inputValue, tokenSeparators); this.tokenize.next(listOfLabel); } } clearInputValue() { if (this.nzSelectSearchComponent) { this.nzSelectSearchComponent.clearInputValue(); } } focus() { if (this.nzSelectSearchComponent) { this.nzSelectSearchComponent.focus(); } } blur() { if (this.nzSelectSearchComponent) { this.nzSelectSearchComponent.blur(); } } trackValue(_index, option) { return option.nzValue; } onDeleteItem(item) { if (!this.disabled && !item.nzDisabled) { this.deleteItem.next(item); } } ngOnChanges(changes) { const { listOfTopItem, maxTagCount, customTemplate, maxTagPlaceholder } = changes; if (listOfTopItem) { this.updateTemplateVariable(); } if (listOfTopItem || maxTagCount || customTemplate || maxTagPlaceholder) { const listOfSlicedItem = this.listOfTopItem.slice(0, this.maxTagCount).map(o => { return { nzLabel: o.nzLabel, nzValue: o.nzValue, nzDisabled: o.nzDisabled, contentTemplateOutlet: this.customTemplate, contentTemplateOutletContext: o }; }); if (this.listOfTopItem.length > this.maxTagCount) { const exceededLabel = `+ ${this.listOfTopItem.length - this.maxTagCount} ...`; const listOfSelectedValue = this.listOfTopItem.map(item => item.nzValue); const exceededItem = { nzLabel: exceededLabel, nzValue: '$$__nz_exceeded_item', nzDisabled: true, contentTemplateOutlet: this.maxTagPlaceholder, contentTemplateOutletContext: listOfSelectedValue.slice(this.maxTagCount) }; listOfSlicedItem.push(exceededItem); } this.listOfSlicedItem = listOfSlicedItem; } } } NzSelectTopControlComponent.decorators = [ { type: Component, args: [{ selector: 'nz-select-top-control', exportAs: 'nzSelectTopControl', preserveWhitespaces: false, changeDetection: ChangeDetectionStrategy.OnPush, encapsulation: ViewEncapsulation.None, template: ` <!--single mode--> <ng-container [ngSwitch]="mode"> <ng-container *ngSwitchCase="'default'"> <nz-select-search [nzId]="nzId" [disabled]="disabled" [value]="inputValue!" [showInput]="showSearch" [mirrorSync]="false" [autofocus]="autofocus" [focusTrigger]="open" (isComposingChange)="isComposingChange($event)" (valueChange)="onInputValueChange($event)" ></nz-select-search> <nz-select-item *ngIf="isShowSingleLabel" [deletable]="false" [disabled]="false" [removeIcon]="removeIcon" [label]="listOfTopItem[0].nzLabel" [contentTemplateOutlet]="customTemplate" [contentTemplateOutletContext]="listOfTopItem[0]" ></nz-select-item> </ng-container> <ng-container *ngSwitchDefault> <!--multiple or tags mode--> <nz-select-item *ngFor="let item of listOfSlicedItem; trackBy: trackValue" [removeIcon]="removeIcon" [label]="item.nzLabel" [disabled]="item.nzDisabled || disabled" [contentTemplateOutlet]="item.contentTemplateOutlet" [deletable]="true" [contentTemplateOutletContext]="item.contentTemplateOutletContext" (delete)="onDeleteItem(item.contentTemplateOutletContext)" ></nz-select-item> <nz-select-search [nzId]="nzId" [disabled]="disabled" [value]="inputValue!" [autofocus]="autofocus" [showInput]="true" [mirrorSync]="true" [focusTrigger]="open" (isComposingChange)="isComposingChange($event)" (valueChange)="onInputValueChange($event)" ></nz-select-search> </ng-container> </ng-container> <nz-select-placeholder *ngIf="isShowPlaceholder" [placeholder]="placeHolder"></nz-select-placeholder> `, host: { '(keydown)': 'onHostKeydown($event)' } },] } ]; NzSelectTopControlComponent.ctorParameters = () => [ { type: ElementRef }, { type: NzNoAnimationDirective, decorators: [{ type: Host }, { type: Optional }] } ]; NzSelectTopControlComponent.propDecorators = { nzId: [{ type: Input }], showSearch: [{ type: Input }], placeHolder: [{ type: Input }], open: [{ type: Input }], maxTagCount: [{ type: Input }], autofocus: [{ type: Input }], disabled: [{ type: Input }], mode: [{ type: Input }], customTemplate: [{ type: Input }], maxTagPlaceholder: [{ type: Input }], removeIcon: [{ type: Input }], listOfTopItem: [{ type: Input }], tokenSeparators: [{ type: Input }], tokenize: [{ type: Output }], inputValueChange: [{ type: Output }], deleteItem: [{ type: Output }], nzSelectSearchComponent: [{ type: ViewChild, args: [NzSelectSearchComponent,] }] }; //# 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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 { BACKSPACE } from '@angular/cdk/keycodes';\nimport {\n  ChangeDetectionStrategy,\n  Component,\n  ElementRef,\n  EventEmitter,\n  Host,\n  Input,\n  OnChanges,\n  Optional,\n  Output,\n  SimpleChanges,\n  TemplateRef,\n  ViewChild,\n  ViewEncapsulation\n} from '@angular/core';\nimport { NzNoAnimationDirective } from 'ng-zorro-antd/core/no-animation';\nimport { NzSafeAny } from 'ng-zorro-antd/core/types';\nimport { NzSelectSearchComponent } from './select-search.component';\nimport { NzSelectItemInterface, NzSelectModeType, NzSelectTopControlItemType } from './select.types';\n\n@Component({\n  selector: 'nz-select-top-control',\n  exportAs: 'nzSelectTopControl',\n  preserveWhitespaces: false,\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  encapsulation: ViewEncapsulation.None,\n  template: `\n    <!--single mode-->\n    <ng-container [ngSwitch]=\"mode\">\n      <ng-container *ngSwitchCase=\"'default'\">\n        <nz-select-search\n          [nzId]=\"nzId\"\n          [disabled]=\"disabled\"\n          [value]=\"inputValue!\"\n          [showInput]=\"showSearch\"\n          [mirrorSync]=\"false\"\n          [autofocus]=\"autofocus\"\n          [focusTrigger]=\"open\"\n          (isComposingChange)=\"isComposingChange($event)\"\n          (valueChange)=\"onInputValueChange($event)\"\n        ></nz-select-search>\n        <nz-select-item\n          *ngIf=\"isShowSingleLabel\"\n          [deletable]=\"false\"\n          [disabled]=\"false\"\n          [removeIcon]=\"removeIcon\"\n          [label]=\"listOfTopItem[0].nzLabel\"\n          [contentTemplateOutlet]=\"customTemplate\"\n          [contentTemplateOutletContext]=\"listOfTopItem[0]\"\n        ></nz-select-item>\n      </ng-container>\n      <ng-container *ngSwitchDefault>\n        <!--multiple or tags mode-->\n        <nz-select-item\n          *ngFor=\"let item of listOfSlicedItem; trackBy: trackValue\"\n          [removeIcon]=\"removeIcon\"\n          [label]=\"item.nzLabel\"\n          [disabled]=\"item.nzDisabled || disabled\"\n          [contentTemplateOutlet]=\"item.contentTemplateOutlet\"\n          [deletable]=\"true\"\n          [contentTemplateOutletContext]=\"item.contentTemplateOutletContext\"\n          (delete)=\"onDeleteItem(item.contentTemplateOutletContext)\"\n        ></nz-select-item>\n        <nz-select-search\n          [nzId]=\"nzId\"\n          [disabled]=\"disabled\"\n          [value]=\"inputValue!\"\n          [autofocus]=\"autofocus\"\n          [showInput]=\"true\"\n          [mirrorSync]=\"true\"\n          [focusTrigger]=\"open\"\n          (isComposingChange)=\"isComposingChange($event)\"\n          (valueChange)=\"onInputValueChange($event)\"\n        ></nz-select-search>\n      </ng-container>\n    </ng-container>\n    <nz-select-placeholder *ngIf=\"isShowPlaceholder\" [placeholder]=\"placeHolder\"></nz-select-placeholder>\n  `,\n  host: {\n    '(keydown)': 'onHostKeydown($event)'\n  }\n})\nexport class NzSelectTopControlComponent implements OnChanges {\n  @Input() nzId: string | null = null;\n  @Input() showSearch = false;\n  @Input() placeHolder: string | TemplateRef<NzSafeAny> | null = null;\n  @Input() open = false;\n  @Input() maxTagCount: number = Infinity;\n  @Input() autofocus = false;\n  @Input() disabled = false;\n  @Input() mode: NzSelectModeType = 'default';\n  @Input() customTemplate: TemplateRef<{ $implicit: NzSelectItemInterface }> | null = null;\n  @Input() maxTagPlaceholder: TemplateRef<{ $implicit: NzSafeAny[] }> | null = null;\n  @Input() removeIcon: TemplateRef<NzSafeAny> | null = null;\n  @Input() listOfTopItem: NzSelectItemInterface[] = [];\n  @Input() tokenSeparators: string[] = [];\n  @Output() readonly tokenize = new EventEmitter<string[]>();\n  @Output() readonly inputValueChange = new EventEmitter<string>();\n  @Output() readonly deleteItem = new EventEmitter<NzSelectItemInterface>();\n  @ViewChild(NzSelectSearchComponent) nzSelectSearchComponent!: NzSelectSearchComponent;\n  listOfSlicedItem: NzSelectTopControlItemType[] = [];\n  isShowPlaceholder = true;\n  isShowSingleLabel = false;\n  isComposing = false;\n  inputValue: string | null = null;\n\n  onHostKeydown(e: KeyboardEvent): void {\n    const inputValue = (e.target as HTMLInputElement).value;\n    if (e.keyCode === BACKSPACE && this.mode !== 'default' && !inputValue && this.listOfTopItem.length > 0) {\n      e.preventDefault();\n      this.onDeleteItem(this.listOfTopItem[this.listOfTopItem.length - 1]);\n    }\n  }\n\n  updateTemplateVariable(): void {\n    const isSelectedValueEmpty = this.listOfTopItem.length === 0;\n    this.isShowPlaceholder = isSelectedValueEmpty && !this.isComposing && !this.inputValue;\n    this.isShowSingleLabel = !isSelectedValueEmpty && !this.isComposing && !this.inputValue;\n  }\n\n  isComposingChange(isComposing: boolean): void {\n    this.isComposing = isComposing;\n    this.updateTemplateVariable();\n  }\n\n  onInputValueChange(value: string): void {\n    if (value !== this.inputValue) {\n      this.inputValue = value;\n      this.updateTemplateVariable();\n      this.inputValueChange.emit(value);\n      this.tokenSeparate(value, this.tokenSeparators);\n    }\n  }\n\n  tokenSeparate(inputValue: string, tokenSeparators: string[]): void {\n    const includesSeparators = (str: string | string[], separators: string[]): boolean => {\n      // tslint:disable-next-line:prefer-for-of\n      for (let i = 0; i < separators.length; ++i) {\n        if (str.lastIndexOf(separators[i]) > 0) {\n          return true;\n        }\n      }\n      return false;\n    };\n    const splitBySeparators = (str: string | string[], separators: string[]): string[] => {\n      const reg = new RegExp(`[${separators.join()}]`);\n      const array = (str as string).split(reg).filter(token => token);\n      return [...new Set(array)];\n    };\n    if (\n      inputValue &&\n      inputValue.length &&\n      tokenSeparators.length &&\n      this.mode !== 'default' &&\n      includesSeparators(inputValue, tokenSeparators)\n    ) {\n      const listOfLabel = splitBySeparators(inputValue, tokenSeparators);\n      this.tokenize.next(listOfLabel);\n    }\n  }\n\n  clearInputValue(): void {\n    if (this.nzSelectSearchComponent) {\n      this.nzSelectSearchComponent.clearInputValue();\n    }\n  }\n\n  focus(): void {\n    if (this.nzSelectSearchComponent) {\n      this.nzSelectSearchComponent.focus();\n    }\n  }\n\n  blur(): void {\n    if (this.nzSelectSearchComponent) {\n      this.nzSelectSearchComponent.blur();\n    }\n  }\n\n  trackValue(_index: number, option: NzSelectTopControlItemType): NzSafeAny {\n    return option.nzValue;\n  }\n\n  onDeleteItem(item: NzSelectItemInterface): void {\n    if (!this.disabled && !item.nzDisabled) {\n      this.deleteItem.next(item);\n    }\n  }\n\n  constructor(private elementRef: ElementRef, @Host() @Optional() public noAnimation?: NzNoAnimationDirective) {\n    // TODO: move to host after View Engine deprecation\n    this.elementRef.nativeElement.classList.add('ant-select-selector');\n  }\n\n  ngOnChanges(changes: SimpleChanges): void {\n    const { listOfTopItem, maxTagCount, customTemplate, maxTagPlaceholder } = changes;\n    if (listOfTopItem) {\n      this.updateTemplateVariable();\n    }\n    if (listOfTopItem || maxTagCount || customTemplate || maxTagPlaceholder) {\n      const listOfSlicedItem: NzSelectTopControlItemType[] = this.listOfTopItem.slice(0, this.maxTagCount).map(o => {\n        return {\n          nzLabel: o.nzLabel,\n          nzValue: o.nzValue,\n          nzDisabled: o.nzDisabled,\n          contentTemplateOutlet: this.customTemplate,\n          contentTemplateOutletContext: o\n        };\n      });\n      if (this.listOfTopItem.length > this.maxTagCount) {\n        const exceededLabel = `+ ${this.listOfTopItem.length - this.maxTagCount} ...`;\n        const listOfSelectedValue = this.listOfTopItem.map(item => item.nzValue);\n        const exceededItem = {\n          nzLabel: exceededLabel,\n          nzValue: '$$__nz_exceeded_item',\n          nzDisabled: true,\n          contentTemplateOutlet: this.maxTagPlaceholder,\n          contentTemplateOutletContext: listOfSelectedValue.slice(this.maxTagCount)\n        };\n        listOfSlicedItem.push(exceededItem);\n      }\n      this.listOfSlicedItem = listOfSlicedItem;\n    }\n  }\n}\n"]}