@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    afterNextRender,\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    WA_MUTATION_OBSERVER_INIT,\n    WaMutationObserverService,\n} from '@ng-web-apis/mutation-observer';\nimport {WaResizeObserverService} from '@ng-web-apis/resize-observer';\nimport {TUI_VERSION} from '@taiga-ui/cdk/constants';\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    template: '',\n    styles: `\n        [data-tui-version='${TUI_VERSION}'] {\n            @import './fade.style.less';\n        }\n    `,\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    exportAs: `tui-fade-${TUI_VERSION}`,\n})\nclass Styles {}\n\n@Directive({\n    selector: '[tuiFade]',\n    providers: [\n        WaResizeObserverService,\n        WaMutationObserverService,\n        {\n            provide: WA_MUTATION_OBSERVER_INIT,\n            useValue: {characterData: true, subtree: true},\n        },\n    ],\n    host: {\n        'data-tui-version': TUI_VERSION,\n        '[attr.data-orientation]': 'orientation()',\n        '[style.--t-fade-offset]': 'offset()',\n        '[style.--t-fade-size]': 'size()',\n        '[style.--t-line-height]': 'lineHeight()',\n        '[style.line-height]': 'lineHeight()',\n        '[style.transition]': '\"none\"',\n    },\n})\nexport class TuiFade {\n    protected readonly nothing = tuiWithStyles(Styles);\n\n    // TODO: Remove when lh CSS units are supported: https://caniuse.com/mdn-css_types_length_lh\n    public readonly lineHeight = input<string | null>(null, {alias: 'tuiFadeHeight'});\n    public readonly size = input('1.5em', {alias: 'tuiFadeSize'});\n    public readonly offset = input('0em', {alias: 'tuiFadeOffset'});\n\n    public readonly orientation = input<TuiOrientation | ''>('horizontal', {\n        alias: 'tuiFade',\n    });\n\n    constructor() {\n        const el = tuiInjectElement();\n\n        // TODO: Replace with TuiTransitioned when fixed:\n        // https://github.com/angular/angular/issues/57846\n        afterNextRender(() => el.style.setProperty('transition', ''));\n\n        merge(\n            inject(WaResizeObserverService, {self: true}),\n            inject(WaMutationObserverService, {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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