@taiga-ui/kit/fesm2022/taiga-ui-kit-components-pager.mjs.map

Taiga UI Angular main components kit

{"version":3,"file":"taiga-ui-kit-components-pager.mjs","sources":["../../../projects/kit/components/pager/pager.component.ts","../../../projects/kit/components/pager/pager.component.html","../../../projects/kit/components/pager/taiga-ui-kit-components-pager.ts"],"sourcesContent":["import {NgTemplateOutlet} from '@angular/common';\nimport {\n    type AfterViewInit,\n    ChangeDetectionStrategy,\n    Component,\n    computed,\n    type ElementRef,\n    inject,\n    input,\n    type OnChanges,\n    signal,\n    type TemplateRef,\n    viewChildren,\n} from '@angular/core';\nimport {takeUntilDestroyed, toSignal} from '@angular/core/rxjs-interop';\nimport {\n    WA_MUTATION_OBSERVER_INIT,\n    WaMutationObserverService,\n} from '@ng-web-apis/mutation-observer';\nimport {tuiWatch} from '@taiga-ui/cdk/observables';\nimport {type TuiSizeS} from '@taiga-ui/core/types';\nimport {delay, map} from 'rxjs';\n\n@Component({\n    selector: 'tui-pager',\n    imports: [NgTemplateOutlet],\n    templateUrl: './pager.component.html',\n    styleUrl: './pager.styles.less',\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    providers: [\n        WaMutationObserverService,\n        {\n            provide: WA_MUTATION_OBSERVER_INIT,\n            useValue: {\n                attributeOldValue: true,\n                characterData: true,\n                childList: true,\n                subtree: true,\n            },\n        },\n    ],\n    host: {\n        '[attr.data-size]': 'size()',\n        '[style.--t-gap.px]': 'gap()',\n        '[style.max-width.px]': 'maxWidth()',\n    },\n})\nexport class TuiPager implements OnChanges, AfterViewInit {\n    protected readonly items = viewChildren<ElementRef<HTMLElement>>('item');\n    protected readonly start = signal(0);\n    protected readonly end = signal(0);\n    protected readonly left = signal(0);\n    protected readonly gap = computed(() => (this.size() === 'm' ? 9 : 7));\n\n    protected readonly maxWidth = toSignal(\n        inject(WaMutationObserverService, {self: true}).pipe(\n            delay(0),\n            map(() => this.visibleWidth),\n            tuiWatch(),\n            takeUntilDestroyed(),\n        ),\n        {initialValue: 0},\n    );\n\n    public readonly max = input(6);\n    public readonly count = input(6);\n    public readonly size = input<TuiSizeS>('m');\n    public readonly valueContent = input<TemplateRef<unknown>>();\n    public readonly index = input(0);\n\n    public ngOnChanges(): void {\n        this.move();\n    }\n\n    public ngAfterViewInit(): void {\n        this.move();\n    }\n\n    private get visibleRange(): [start: number, end: number] {\n        const max = this.max() > this.count() ? this.count() : this.max();\n\n        const start = Math.min(\n            Math.max(this.index() - Math.floor(max / 2), 0),\n            this.count() - max,\n        );\n\n        return [start, start + (max - 1)];\n    }\n\n    private get visibleWidth(): number {\n        return (\n            this.items()\n                .map((item) => item.nativeElement.offsetWidth)\n                .slice(this.start(), this.end() + 1)\n                .reduce((sum, item) => sum + item + this.gap(), 0) - this.gap()\n        );\n    }\n\n    private move(): void {\n        const [start, end] = this.visibleRange;\n\n        this.start.set(start);\n        this.end.set(end);\n\n        let left = this.start() * this.gap();\n\n        for (let i = 0; i < this.start(); i++) {\n            left += this.items()[i]?.nativeElement.offsetWidth ?? 0;\n        }\n\n        this.left.set(-1 * left);\n    }\n}\n","<div\n    class=\"t-items\"\n    [style.transform]=\"`translateX(calc(var(--tui-inline) * ${left()}px))`\"\n>\n    @for (_ of '-'.repeat(count()); track $index) {\n        <div\n            #item\n            class=\"t-item\"\n            [attr.data-index]=\"$index\"\n            [class._active]=\"$index === index()\"\n            [class._last]=\"$index === count() - 1\"\n            [class._post-active]=\"$index === index() + 1\"\n            [class._pre-active]=\"$index === index() - 1\"\n            [class._pre-last]=\"$index === count() - 2\"\n            [class._visible]=\"$index >= start() && $index <= end()\"\n        >\n            <ng-container *ngTemplateOutlet=\"valueContent() || null; context: {$implicit: $index}\" />\n        </div>\n    }\n</div>\n","/**\n * Generated bundle index. 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