ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
233 lines • 28.2 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 { BACKSPACE } from '@angular/cdk/keycodes';
import { ChangeDetectionStrategy, Component, ElementRef, EventEmitter, Host, Input, Optional, Output, ViewChild, ViewEncapsulation } from '@angular/core';
import { zoomMotion } from 'ng-zorro-antd/core/animation';
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.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.animationEnd = 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);
}
}
onAnimationEnd() {
this.animationEnd.next();
}
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,
animations: [zoomMotion],
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
template: `
<!--single mode-->
<ng-container [ngSwitch]="mode">
<ng-container *ngSwitchCase="'default'">
<nz-select-search
[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"
[]
[@.disabled]="noAnimation?.nzNoAnimation"
[nzNoAnimation]="noAnimation?.nzNoAnimation"
[removeIcon]="removeIcon"
[label]="item.nzLabel"
[disabled]="item.nzDisabled || disabled"
[contentTemplateOutlet]="item.contentTemplateOutlet"
[deletable]="true"
[contentTemplateOutletContext]="item.contentTemplateOutletContext"
(.done)="onAnimationEnd()"
(delete)="onDeleteItem(item.contentTemplateOutletContext)"
></nz-select-item>
<nz-select-search
[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 = {
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 }],
animationEnd: [{ 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 { zoomMotion } from 'ng-zorro-antd/core/animation';\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  animations: [zoomMotion],\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          [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          [@zoomMotion]\n          [@.disabled]=\"noAnimation?.nzNoAnimation\"\n          [nzNoAnimation]=\"noAnimation?.nzNoAnimation\"\n          [removeIcon]=\"removeIcon\"\n          [label]=\"item.nzLabel\"\n          [disabled]=\"item.nzDisabled || disabled\"\n          [contentTemplateOutlet]=\"item.contentTemplateOutlet\"\n          [deletable]=\"true\"\n          [contentTemplateOutletContext]=\"item.contentTemplateOutletContext\"\n          (@zoomMotion.done)=\"onAnimationEnd()\"\n          (delete)=\"onDeleteItem(item.contentTemplateOutletContext)\"\n        ></nz-select-item>\n        <nz-select-search\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() 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 animationEnd = new EventEmitter<void>();\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  onAnimationEnd(): void {\n    this.animationEnd.next();\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"]}