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@taiga-ui/kit

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Taiga UI Angular main components kit

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import { DOCUMENT } from '@angular/common'; import { Directive, EventEmitter, inject, Output } from '@angular/core'; import { takeUntilDestroyed } from '@angular/core/rxjs-interop'; import { tuiTypedFromEvent } from '@taiga-ui/cdk/observables'; import { tuiInjectElement } from '@taiga-ui/cdk/utils/dom'; import { tuiClamp, tuiRound } from '@taiga-ui/cdk/utils/math'; import { TUI_FLOATING_PRECISION } from '@taiga-ui/kit/components/slider'; import { map, repeat, startWith, switchMap, takeUntil, tap } from 'rxjs'; import { TuiRange } from './range.component'; import * as i0 from "@angular/core"; class TuiRangeChange { constructor() { this.doc = inject(DOCUMENT); this.el = tuiInjectElement(); this.range = inject(TuiRange); this.activeThumbChange = new EventEmitter(); let activeThumb; tuiTypedFromEvent(this.el, 'pointerdown', { passive: true, capture: true, }) .pipe(tap(({ clientX, target, pointerId }) => { activeThumb = this.detectActiveThumb(clientX, target); this.range.slidersRefs .get(activeThumb === 'left' ? 0 : 1) ?.nativeElement.setPointerCapture(pointerId); this.activeThumbChange.emit(activeThumb); if (this.range.focusable) { this.el.focus(); } }), switchMap((event) => tuiTypedFromEvent(this.doc, 'pointermove').pipe(startWith(event))), map(({ clientX }) => this.getFractionFromEvents(clientX ?? 0)), takeUntil(tuiTypedFromEvent(this.doc, 'pointerup', { passive: true })), repeat(), takeUntilDestroyed()) .subscribe((fraction) => { const value = this.range.toValue(fraction); this.range.processValue(value, activeThumb === 'right'); }); } getFractionFromEvents(clickClientX) { const hostRect = this.el.getBoundingClientRect(); const value = clickClientX - hostRect.left; const total = hostRect.width; return tuiClamp(tuiRound(value / total, TUI_FLOATING_PRECISION), 0, 1); } detectActiveThumb(clientX, target) { const [leftSliderRef, rightSliderRef] = this.range.slidersRefs; switch (target) { case leftSliderRef?.nativeElement: return 'left'; case rightSliderRef?.nativeElement: return 'right'; default: return this.findNearestActiveThumb(clientX); } } findNearestActiveThumb(clientX) { const fraction = this.getFractionFromEvents(clientX); const deltaLeft = fraction * 100 - this.range.left(); const deltaRight = fraction * 100 - 100 + this.range.right(); return Math.abs(deltaLeft) > Math.abs(deltaRight) || deltaRight > 0 || (this.range.left() === 0 && this.range.right() === 100) ? 'right' : 'left'; } static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiRangeChange, deps: [], target: i0.ɵɵFactoryTarget.Directive }); } static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: TuiRangeChange, isStandalone: true, outputs: { activeThumbChange: "activeThumbChange" }, ngImport: i0 }); } } export { TuiRangeChange }; i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiRangeChange, decorators: [{ type: Directive, args: [{ standalone: true, }] }], ctorParameters: function () { return []; }, propDecorators: { activeThumbChange: [{ type: Output }] } }); //# 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{DOCUMENT} from '@angular/common';\nimport {Directive, EventEmitter, inject, Output} from '@angular/core';\nimport {takeUntilDestroyed} from '@angular/core/rxjs-interop';\nimport {tuiTypedFromEvent} from '@taiga-ui/cdk/observables';\nimport {tuiInjectElement} from '@taiga-ui/cdk/utils/dom';\nimport {tuiClamp, tuiRound} from '@taiga-ui/cdk/utils/math';\nimport {TUI_FLOATING_PRECISION} from '@taiga-ui/kit/components/slider';\nimport {map, repeat, startWith, switchMap, takeUntil, tap} from 'rxjs';\n\nimport {TuiRange} from './range.component';\n\n@Directive({\n    standalone: true,\n})\nexport class TuiRangeChange {\n    private readonly doc = inject(DOCUMENT);\n    private readonly el = tuiInjectElement();\n    private readonly range = inject(TuiRange);\n\n    @Output()\n    public readonly activeThumbChange = new EventEmitter<'left' | 'right'>();\n\n    constructor() {\n        let activeThumb: 'left' | 'right';\n\n        tuiTypedFromEvent(this.el, 'pointerdown', {\n            passive: true,\n            capture: true,\n        })\n            .pipe(\n                tap(({clientX, target, pointerId}) => {\n                    activeThumb = this.detectActiveThumb(clientX, target);\n                    this.range.slidersRefs\n                        .get(activeThumb === 'left' ? 0 : 1)\n                        ?.nativeElement.setPointerCapture(pointerId);\n                    this.activeThumbChange.emit(activeThumb);\n\n                    if (this.range.focusable) {\n                        this.el.focus();\n                    }\n                }),\n                switchMap((event) =>\n                    tuiTypedFromEvent(this.doc, 'pointermove').pipe(startWith(event)),\n                ),\n                map(({clientX}) => this.getFractionFromEvents(clientX ?? 0)),\n                takeUntil(tuiTypedFromEvent(this.doc, 'pointerup', {passive: true})),\n                repeat(),\n                takeUntilDestroyed(),\n            )\n            .subscribe((fraction) => {\n                const value = this.range.toValue(fraction);\n\n                this.range.processValue(value, activeThumb === 'right');\n            });\n    }\n\n    private getFractionFromEvents(clickClientX: number): number {\n        const hostRect = this.el.getBoundingClientRect();\n        const value = clickClientX - hostRect.left;\n        const total = hostRect.width;\n\n        return tuiClamp(tuiRound(value / total, TUI_FLOATING_PRECISION), 0, 1);\n    }\n\n    private detectActiveThumb(\n        clientX: number,\n        target: EventTarget | null,\n    ): 'left' | 'right' {\n        const [leftSliderRef, rightSliderRef] = this.range.slidersRefs;\n\n        switch (target) {\n            case leftSliderRef?.nativeElement:\n                return 'left';\n            case rightSliderRef?.nativeElement:\n                return 'right';\n            default:\n                return this.findNearestActiveThumb(clientX);\n        }\n    }\n\n    private findNearestActiveThumb(clientX: number): 'left' | 'right' {\n        const fraction = this.getFractionFromEvents(clientX);\n        const deltaLeft = fraction * 100 - this.range.left();\n        const deltaRight = fraction * 100 - 100 + this.range.right();\n\n        return Math.abs(deltaLeft) > Math.abs(deltaRight) ||\n            deltaRight > 0 ||\n            (this.range.left() === 0 && this.range.right() === 100)\n            ? 'right'\n            : 'left';\n    }\n}\n"]}