@taiga-ui/addon-mobile/fesm2022/taiga-ui-addon-mobile-directives-elastic-sticky.mjs.map

Extension package for Taiga UI that adds support for mobile specific behaviors such as custom data pickers, dropdowns, etc.

{"version":3,"file":"taiga-ui-addon-mobile-directives-elastic-sticky.mjs","sources":["../../../projects/addon-mobile/directives/elastic-sticky/elastic-sticky.service.ts","../../../projects/addon-mobile/directives/elastic-sticky/elastic-sticky.directive.ts","../../../projects/addon-mobile/directives/elastic-sticky/taiga-ui-addon-mobile-directives-elastic-sticky.ts"],"sourcesContent":["import {\n    afterNextRender,\n    DestroyRef,\n    inject,\n    Injectable,\n    INJECTOR,\n    NgZone,\n} from '@angular/core';\nimport {takeUntilDestroyed} from '@angular/core/rxjs-interop';\nimport {tuiScrollFrom, tuiZoneOptimized} from '@taiga-ui/cdk/observables';\nimport {tuiGetElementOffset, tuiInjectElement} from '@taiga-ui/cdk/utils/dom';\nimport {SCROLL_REF_SELECTOR} from '@taiga-ui/core/components/scrollbar';\nimport {TUI_SCROLL_REF} from '@taiga-ui/core/tokens';\nimport {distinctUntilChanged, map, Observable, scan, Subscription} from 'rxjs';\n\n@Injectable()\nexport class TuiElasticStickyService extends Observable<number> {\n    private readonly injector = inject(INJECTOR);\n    private readonly el = tuiInjectElement();\n    private readonly scrollRef = inject(TUI_SCROLL_REF).nativeElement;\n    private readonly destroyRef = inject(DestroyRef);\n    private readonly zone = inject(NgZone);\n\n    constructor() {\n        super((subscriber) => {\n            const subscription = new Subscription();\n\n            afterNextRender(\n                () => {\n                    const teardown = tuiScrollFrom(this.host)\n                        .pipe(\n                            scan(\n                                (top) => (this.pinned ? top : this.offsetTop),\n                                this.offsetTop,\n                            ),\n                            map((top) =>\n                                Math.max(\n                                    1 -\n                                        Math.max(\n                                            Math.round(this.host.scrollTop) - top,\n                                            0,\n                                        ) /\n                                            this.el.offsetHeight,\n                                    0,\n                                ),\n                            ),\n                            distinctUntilChanged(),\n                            tuiZoneOptimized(this.zone),\n                            takeUntilDestroyed(this.destroyRef),\n                        )\n                        .subscribe(subscriber);\n\n                    if (!subscription.closed) {\n                        subscription.add(teardown);\n                    } else {\n                        teardown.unsubscribe();\n                    }\n                },\n                {injector: this.injector},\n            );\n\n            return subscription;\n        });\n    }\n\n    private get host(): Element {\n        // TODO: Test if we still need it now, that templates pass injector\n        return this.el.closest(SCROLL_REF_SELECTOR) || this.scrollRef;\n    }\n\n    private get offsetTop(): number {\n        return tuiGetElementOffset(this.host, this.el).offsetTop;\n    }\n\n    private get pinned(): boolean {\n        return (\n            this.el.getBoundingClientRect().top -\n                this.host.getBoundingClientRect().top ===\n            0\n        );\n    }\n}\n","import {Directive, inject, Output} from '@angular/core';\n\nimport {TuiElasticStickyService} from './elastic-sticky.service';\n\n@Directive({\n    standalone: true,\n    selector: '[tuiElasticSticky]',\n    providers: [TuiElasticStickyService],\n    exportAs: 'tuiElasticSticky',\n})\nexport class TuiElasticSticky {\n    @Output()\n    public readonly tuiElasticSticky = inject(TuiElasticStickyService);\n}\n","/**\n * Generated bundle index. 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