ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
135 lines • 15 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 { ChangeDetectionStrategy, ChangeDetectorRef, Component, ElementRef, Input, Renderer2, ViewEncapsulation } from '@angular/core';
import { toCssPixel } from 'ng-zorro-antd/core/util';
export class NzSkeletonComponent {
constructor(cdr, renderer, elementRef) {
this.cdr = cdr;
this.nzActive = false;
this.nzLoading = true;
this.nzRound = false;
this.nzTitle = true;
this.nzAvatar = false;
this.nzParagraph = true;
this.rowsList = [];
this.widthList = [];
renderer.addClass(elementRef.nativeElement, 'ant-skeleton');
}
toCSSUnit(value = '') {
return toCssPixel(value);
}
getTitleProps() {
const hasAvatar = !!this.nzAvatar;
const hasParagraph = !!this.nzParagraph;
let width = '';
if (!hasAvatar && hasParagraph) {
width = '38%';
}
else if (hasAvatar && hasParagraph) {
width = '50%';
}
return Object.assign({ width }, this.getProps(this.nzTitle));
}
getAvatarProps() {
const shape = !!this.nzTitle && !this.nzParagraph ? 'square' : 'circle';
const size = 'large';
return Object.assign({ shape, size }, this.getProps(this.nzAvatar));
}
getParagraphProps() {
const hasAvatar = !!this.nzAvatar;
const hasTitle = !!this.nzTitle;
const basicProps = {};
// Width
if (!hasAvatar || !hasTitle) {
basicProps.width = '61%';
}
// Rows
if (!hasAvatar && hasTitle) {
basicProps.rows = 3;
}
else {
basicProps.rows = 2;
}
return Object.assign(Object.assign({}, basicProps), this.getProps(this.nzParagraph));
}
getProps(prop) {
return prop && typeof prop === 'object' ? prop : {};
}
getWidthList() {
const { width, rows } = this.paragraph;
let widthList = [];
if (width && Array.isArray(width)) {
widthList = width;
}
else if (width && !Array.isArray(width)) {
widthList = [];
widthList[rows - 1] = width;
}
return widthList;
}
updateProps() {
this.title = this.getTitleProps();
this.avatar = this.getAvatarProps();
this.paragraph = this.getParagraphProps();
this.rowsList = [...Array(this.paragraph.rows)];
this.widthList = this.getWidthList();
this.cdr.markForCheck();
}
ngOnInit() {
this.updateProps();
}
ngOnChanges(changes) {
if (changes.nzTitle || changes.nzAvatar || changes.nzParagraph) {
this.updateProps();
}
}
}
NzSkeletonComponent.decorators = [
{ type: Component, args: [{
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None,
selector: 'nz-skeleton',
exportAs: 'nzSkeleton',
host: {
'[class.ant-skeleton-with-avatar]': '!!nzAvatar',
'[class.ant-skeleton-active]': 'nzActive',
'[class.ant-skeleton-round]': '!!nzRound'
},
template: `
<ng-container *ngIf="nzLoading">
<div class="ant-skeleton-header" *ngIf="!!nzAvatar">
<nz-skeleton-element
nzType="avatar"
[nzSize]="avatar.size || 'default'"
[nzShape]="avatar.shape || 'circle'"
></nz-skeleton-element>
</div>
<div class="ant-skeleton-content">
<h3 *ngIf="!!nzTitle" class="ant-skeleton-title" [style.width]="toCSSUnit(title.width)"></h3>
<ul *ngIf="!!nzParagraph" class="ant-skeleton-paragraph">
<li *ngFor="let row of rowsList; let i = index" [style.width]="toCSSUnit(widthList[i])"></li>
</ul>
</div>
</ng-container>
<ng-container *ngIf="!nzLoading">
<ng-content></ng-content>
</ng-container>
`
},] }
];
NzSkeletonComponent.ctorParameters = () => [
{ type: ChangeDetectorRef },
{ type: Renderer2 },
{ type: ElementRef }
];
NzSkeletonComponent.propDecorators = {
nzActive: [{ type: Input }],
nzLoading: [{ type: Input }],
nzRound: [{ type: Input }],
nzTitle: [{ type: Input }],
nzAvatar: [{ type: Input }],
nzParagraph: [{ type: Input }]
};
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let i = index\" [style.width]=\"toCSSUnit(widthList[i])\"></li>\n        </ul>\n      </div>\n    </ng-container>\n    <ng-container *ngIf=\"!nzLoading\">\n      <ng-content></ng-content>\n    </ng-container>\n  `\n})\nexport class NzSkeletonComponent implements OnInit, OnChanges {\n  @Input() nzActive = false;\n  @Input() nzLoading = true;\n  @Input() nzRound = false;\n  @Input() nzTitle: NzSkeletonTitle | boolean = true;\n  @Input() nzAvatar: NzSkeletonAvatar | boolean = false;\n  @Input() nzParagraph: NzSkeletonParagraph | boolean = true;\n\n  title!: NzSkeletonTitle;\n  avatar!: NzSkeletonAvatar;\n  paragraph!: NzSkeletonParagraph;\n  rowsList: number[] = [];\n  widthList: Array<number | string> = [];\n\n  constructor(private cdr: ChangeDetectorRef, renderer: Renderer2, elementRef: ElementRef) {\n    renderer.addClass(elementRef.nativeElement, 'ant-skeleton');\n  }\n\n  toCSSUnit(value: number | string = ''): string {\n    return toCssPixel(value);\n  }\n\n  private getTitleProps(): NzSkeletonTitle {\n    const hasAvatar = !!this.nzAvatar;\n    const hasParagraph = !!this.nzParagraph;\n    let width = '';\n    if (!hasAvatar && hasParagraph) {\n      width = '38%';\n    } else if (hasAvatar && hasParagraph) {\n      width = '50%';\n    }\n    return { width, ...this.getProps(this.nzTitle) };\n  }\n\n  private getAvatarProps(): NzSkeletonAvatar {\n    const shape: NzSkeletonAvatarShape = !!this.nzTitle && !this.nzParagraph ? 'square' : 'circle';\n    const size: NzSkeletonAvatarSize = 'large';\n    return { shape, size, ...this.getProps(this.nzAvatar) };\n  }\n\n  private getParagraphProps(): NzSkeletonParagraph {\n    const hasAvatar = !!this.nzAvatar;\n    const hasTitle = !!this.nzTitle;\n    const basicProps: NzSkeletonParagraph = {};\n    // Width\n    if (!hasAvatar || !hasTitle) {\n      basicProps.width = '61%';\n    }\n    // Rows\n    if (!hasAvatar && hasTitle) {\n      basicProps.rows = 3;\n    } else {\n      basicProps.rows = 2;\n    }\n    return { ...basicProps, ...this.getProps(this.nzParagraph) };\n  }\n\n  private getProps<T>(prop: T | boolean | undefined): T | {} {\n    return prop && typeof prop === 'object' ? prop : {};\n  }\n\n  private getWidthList(): Array<number | string> {\n    const { width, rows } = this.paragraph;\n    let widthList: Array<string | number> = [];\n    if (width && Array.isArray(width)) {\n      widthList = width;\n    } else if (width && !Array.isArray(width)) {\n      widthList = [];\n      widthList[rows! - 1] = width;\n    }\n    return widthList;\n  }\n\n  private updateProps(): void {\n    this.title = this.getTitleProps();\n    this.avatar = this.getAvatarProps();\n    this.paragraph = this.getParagraphProps();\n    this.rowsList = [...Array(this.paragraph.rows)];\n    this.widthList = this.getWidthList();\n    this.cdr.markForCheck();\n  }\n\n  ngOnInit(): void {\n    this.updateProps();\n  }\n\n  ngOnChanges(changes: SimpleChanges): void {\n    if (changes.nzTitle || changes.nzAvatar || changes.nzParagraph) {\n      this.updateProps();\n    }\n  }\n}\n"]}