@taiga-ui/kit/fesm2022/taiga-ui-kit-directives-fade.mjs.map

Taiga UI Angular main components kit

{"version":3,"file":"taiga-ui-kit-directives-fade.mjs","sources":["../../../projects/kit/directives/fade/fade.directive.ts","../../../projects/kit/directives/fade/taiga-ui-kit-directives-fade.ts"],"sourcesContent":["import {\n    ChangeDetectionStrategy,\n    Component,\n    Directive,\n    inject,\n    Input,\n    ViewEncapsulation,\n} from '@angular/core';\nimport {takeUntilDestroyed} from '@angular/core/rxjs-interop';\nimport {\n    MutationObserverService,\n    WA_MUTATION_OBSERVER_INIT,\n} from '@ng-web-apis/mutation-observer';\nimport {ResizeObserverService} from '@ng-web-apis/resize-observer';\nimport {tuiZonefree} from '@taiga-ui/cdk/observables';\nimport {tuiInjectElement} from '@taiga-ui/cdk/utils/dom';\nimport {tuiWithStyles} from '@taiga-ui/cdk/utils/miscellaneous';\nimport type {TuiOrientation} from '@taiga-ui/core/types';\nimport {filter, fromEvent, merge} from 'rxjs';\n\nconst BUFFER = 1; // buffer for rounding issues\n\n@Component({\n    standalone: true,\n    template: '',\n    styleUrls: ['./fade.style.less'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {\n        class: 'tui-fade-styles',\n    },\n})\nclass TuiFadeStyles {}\n\n@Directive({\n    standalone: true,\n    selector: '[tuiFade]',\n    providers: [\n        ResizeObserverService,\n        MutationObserverService,\n        {\n            provide: WA_MUTATION_OBSERVER_INIT,\n            useValue: {characterData: true, subtree: true},\n        },\n    ],\n    host: {\n        '[style.line-height]': 'lineHeight',\n        '[style.--t-line-height]': 'lineHeight',\n        '[style.--t-fade-size]': 'size',\n        '[style.--t-fade-offset]': 'offset',\n        '[attr.data-orientation]': 'orientation',\n    },\n})\nexport class TuiFade {\n    // TODO: Remove when lh CSS units are supported: https://caniuse.com/mdn-css_types_length_lh\n    @Input('tuiFadeHeight')\n    public lineHeight: string | null = null;\n\n    @Input('tuiFadeSize')\n    public size = '1.5em';\n\n    @Input('tuiFadeOffset')\n    public offset = '0em';\n\n    @Input('tuiFade')\n    public orientation: TuiOrientation | '' = 'horizontal';\n\n    constructor() {\n        const el = tuiInjectElement();\n\n        tuiWithStyles(TuiFadeStyles);\n        merge(\n            inject(ResizeObserverService, {self: true}),\n            inject(MutationObserverService, {self: true}),\n            fromEvent(el, 'scroll'),\n        )\n            .pipe(\n                filter(() => !!el.scrollWidth),\n                tuiZonefree(),\n                takeUntilDestroyed(),\n            )\n            .subscribe(() => {\n                el.classList.toggle('_end', this.isEnd(el));\n                el.classList.toggle(\n                    '_start',\n                    !!Math.floor(el.scrollLeft) || !!Math.floor(el.scrollTop),\n                );\n            });\n    }\n\n    private isEnd({\n        scrollTop,\n        scrollLeft,\n        scrollHeight,\n        scrollWidth,\n        clientHeight,\n        clientWidth,\n    }: HTMLElement): boolean {\n        return this.orientation === 'vertical'\n            ? Math.round(scrollTop) < scrollHeight - clientHeight - BUFFER\n            : Math.ceil(Math.abs(scrollLeft)) < scrollWidth - clientWidth - BUFFER ||\n                  // horizontal multiline fade can kick in early due to hanging elements of fonts so using bigger buffer\n                  scrollHeight > clientHeight + 4 * BUFFER;\n    }\n}\n","/**\n * Generated bundle index. 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