angular-instantsearch
Version:
Lightning-fast search for Angular apps, by Algolia.
162 lines (158 loc) • 14.1 kB
JavaScript
import { Component, Input, Inject, forwardRef, Optional } from '@angular/core';
import { connectPagination } from 'instantsearch.js/es/connectors';
import { TypedBaseWidget } from '../typed-base-widget';
import { NgAisInstantSearch } from '../instantsearch/instantsearch';
import { NgAisIndex } from '../index-widget/index-widget';
import { parseNumberInput, noop } from '../utils';
export class NgAisPagination extends TypedBaseWidget {
constructor(parentIndex, instantSearchInstance) {
super('Pagination');
this.parentIndex = parentIndex;
this.instantSearchInstance = instantSearchInstance;
// rendering options
this.showFirst = true;
this.showLast = true;
this.showPrevious = true;
this.showNext = true;
// TODO: check if this works, padding and totalPages are most likely strings when passed to the template
this.state = {
createURL: () => '#',
currentRefinement: 0,
nbHits: 0,
nbPages: 0,
refine: noop,
pages: [],
canRefine: false,
isFirstPage: false,
isLastPage: false,
};
}
ngOnInit() {
this.createWidget(connectPagination, {
padding: parseNumberInput(this.padding),
totalPages: parseNumberInput(this.totalPages),
}, {
$$widgetType: 'ais.pagination',
});
super.ngOnInit();
}
refine(event, page) {
event.stopPropagation();
event.preventDefault();
if (page < 0 ||
page === this.state.currentRefinement ||
page >= this.state.nbPages) {
return;
}
this.state.refine(page);
}
}
NgAisPagination.decorators = [
{ type: Component, args: [{
selector: 'ais-pagination',
template: `
<div [ngClass]="[cx(), state.nbPages <= 1 ? cx('', 'noRefinement') : '']">
<ul [class]="cx('list')">
<li
*ngIf="showFirst"
(click)="refine($event, 0)"
[class]="
cx('item') +
' ' +
cx('item', 'firstPage') +
(state.currentRefinement === 0 ? ' ' + cx('item', 'disabled') : '')
"
>
<a
[href]="state.createURL(0)"
[class]="cx('link')"
>
‹‹
</a>
</li>
<li
*ngIf="showPrevious"
(click)="refine($event, state.currentRefinement - 1)"
[class]="
cx('item') +
' ' +
cx('item', 'previousPage') +
(state.currentRefinement === 0 ? ' ' + cx('item', 'disabled') : '')
"
>
<a
[href]="state.createURL(state.currentRefinement - 1)"
[class]="cx('link')"
>
‹
</a>
</li>
<li
[class]="
cx('item') +
' ' +
cx('item', 'page') +
(state.currentRefinement === page ? ' ' + cx('item', 'selected') : '')
"
*ngFor="let page of state.pages"
(click)="refine($event, page)"
>
<a
[class]="cx('link')"
[href]="state.createURL(page)"
>
{{page + 1}}
</a>
</li>
<li
*ngIf="showNext"
(click)="refine($event, state.currentRefinement + 1)"
[class]="
cx('item') +
' ' +
cx('item', 'nextPage') +
(state.currentRefinement + 1 === state.nbPages ? ' ' + cx('item', 'disabled') : '')
"
>
<a
[href]="state.createURL(state.currentRefinement + 1)"
[class]="cx('link')"
>
›
</a>
</li>
<li
*ngIf="showLast"
(click)="refine($event, state.nbPages - 1)"
[class]="
cx('item') +
' ' +
cx('item', 'lastPage') +
(state.currentRefinement + 1 === state.nbPages ? ' ' + cx('item', 'disabled') : '')
"
>
<a
[href]="state.createURL(state.nbPages - 1)"
[class]="cx('link')"
>
››
</a>
</li>
</ul>
</div>
`
},] }
];
NgAisPagination.ctorParameters = () => [
{ type: NgAisIndex, decorators: [{ type: Inject, args: [forwardRef(() => NgAisIndex),] }, { type: Optional }] },
{ type: NgAisInstantSearch, decorators: [{ type: Inject, args: [forwardRef(() => NgAisInstantSearch),] }] }
];
NgAisPagination.propDecorators = {
showFirst: [{ type: Input }],
showLast: [{ type: Input }],
showPrevious: [{ type: Input }],
showNext: [{ type: Input }],
padding: [{ type: Input }],
totalPages: [{ type: Input }]
};
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' ' + cx('item', 'disabled') : '')\n          \"\n        >\n          <a\n            [href]=\"state.createURL(0)\"\n            [class]=\"cx('link')\"\n          >\n            ‹‹\n          </a>\n        </li>\n\n        <li\n          *ngIf=\"showPrevious\"\n          (click)=\"refine($event, state.currentRefinement - 1)\"\n          [class]=\"\n            cx('item') +\n            ' ' +\n            cx('item', 'previousPage') +\n            (state.currentRefinement === 0 ? ' ' + cx('item', 'disabled') : '')\n          \"\n        >\n          <a\n            [href]=\"state.createURL(state.currentRefinement - 1)\"\n            [class]=\"cx('link')\"\n          >\n            ‹\n          </a>\n        </li>\n\n        <li\n          [class]=\"\n            cx('item') +\n            ' ' +\n            cx('item', 'page') +\n            (state.currentRefinement === page ? ' ' + cx('item', 'selected') : '')\n          \"\n          *ngFor=\"let page of state.pages\"\n          (click)=\"refine($event, page)\"\n        >\n          <a\n            [class]=\"cx('link')\"\n            [href]=\"state.createURL(page)\"\n          >\n            {{page + 1}}\n          </a>\n        </li>\n\n        <li\n          *ngIf=\"showNext\"\n          (click)=\"refine($event, state.currentRefinement + 1)\"\n          [class]=\"\n            cx('item') +\n            ' ' +\n            cx('item', 'nextPage') +\n            (state.currentRefinement + 1 === state.nbPages ? ' ' + cx('item', 'disabled') : '')\n          \"\n        >\n          <a\n            [href]=\"state.createURL(state.currentRefinement + 1)\"\n            [class]=\"cx('link')\"\n          >\n            ›\n          </a>\n        </li>\n\n        <li\n          *ngIf=\"showLast\"\n          (click)=\"refine($event, state.nbPages - 1)\"\n          [class]=\"\n            cx('item') +\n            ' ' +\n            cx('item', 'lastPage') +\n            (state.currentRefinement + 1 === state.nbPages ? ' ' + cx('item', 'disabled') : '')\n          \"\n        >\n          <a\n            [href]=\"state.createURL(state.nbPages - 1)\"\n            [class]=\"cx('link')\"\n          >\n            ››\n          </a>\n        </li>\n      </ul>\n    </div>\n  `,\n})\nexport class NgAisPagination extends TypedBaseWidget<\n  PaginationWidgetDescription,\n  PaginationConnectorParams\n> {\n  // rendering options\n  @Input() public showFirst: boolean = true;\n  @Input() public showLast: boolean = true;\n  @Input() public showPrevious: boolean = true;\n  @Input() public showNext: boolean = true;\n\n  // instance options\n  @Input() public padding?: PaginationConnectorParams['padding'];\n  @Input() public totalPages?: PaginationConnectorParams['totalPages'];\n  // TODO: check if this works, padding and totalPages are most likely strings when passed to the template\n\n  public state: PaginationRenderState = {\n    createURL: () => '#',\n    currentRefinement: 0,\n    nbHits: 0,\n    nbPages: 0,\n    refine: noop,\n    pages: [],\n    canRefine: false,\n    isFirstPage: false,\n    isLastPage: false,\n  };\n\n  constructor(\n    @Inject(forwardRef(() => NgAisIndex))\n    @Optional()\n    public parentIndex: NgAisIndex,\n    @Inject(forwardRef(() => NgAisInstantSearch))\n    public instantSearchInstance: NgAisInstantSearch\n  ) {\n    super('Pagination');\n  }\n\n  public ngOnInit() {\n    this.createWidget(\n      connectPagination,\n      {\n        padding: parseNumberInput(this.padding),\n        totalPages: parseNumberInput(this.totalPages),\n      },\n      {\n        $$widgetType: 'ais.pagination',\n      }\n    );\n    super.ngOnInit();\n  }\n\n  public refine(event: MouseEvent, page: number) {\n    event.stopPropagation();\n    event.preventDefault();\n\n    if (\n      page < 0 ||\n      page === this.state.currentRefinement ||\n      page >= this.state.nbPages\n    ) {\n      return;\n    }\n\n    this.state.refine(page);\n  }\n}\n"]}