@taiga-ui/cdk/fesm2022/taiga-ui-cdk-directives-zoom.mjs.map

Base library for creating Angular components and applications using Taiga UI principles regarding of actual visual appearance

{"version":3,"file":"taiga-ui-cdk-directives-zoom.mjs","sources":["../../../projects/cdk/directives/zoom/zoom.options.ts","../../../projects/cdk/directives/zoom/zoom.service.ts","../../../projects/cdk/directives/zoom/zoom.directive.ts","../../../projects/cdk/directives/zoom/taiga-ui-cdk-directives-zoom.ts"],"sourcesContent":["import {InjectionToken} from '@angular/core';\n\nimport {type TuiZoomOptions} from './zoom.types';\n\n/**\n * Zoom options\n */\nexport const TUI_ZOOM_OPTIONS = new InjectionToken<TuiZoomOptions>(\n    ngDevMode ? 'TUI_ZOOM_OPTIONS' : '',\n    {\n        factory: () => ({\n            wheelSensitivity: 0.01,\n        }),\n    },\n);\n","import {inject, Injectable} from '@angular/core';\nimport {tuiPreventDefault, tuiTypedFromEvent} from '@taiga-ui/cdk/observables';\nimport {tuiDistanceBetweenTouches, tuiInjectElement} from '@taiga-ui/cdk/utils';\nimport {filter, map, merge, Observable, scan, switchMap, takeUntil} from 'rxjs';\n\nimport {TUI_ZOOM_OPTIONS} from './zoom.options';\nimport {type TuiZoomEvent} from './zoom.types';\n\nconst TOUCH_SENSITIVITY = 0.01;\n\n@Injectable()\nexport class TuiZoomService extends Observable<TuiZoomEvent> {\n    constructor() {\n        const el = tuiInjectElement();\n        const {wheelSensitivity} = inject(TUI_ZOOM_OPTIONS);\n\n        super((subscriber) =>\n            merge(\n                tuiTypedFromEvent(el, 'touchstart', {passive: true}).pipe(\n                    filter(({touches}) => touches.length > 1),\n                    switchMap((startEvent) =>\n                        tuiTypedFromEvent(el, 'touchmove', {passive: true}).pipe(\n                            tuiPreventDefault(),\n                            scan(\n                                (prev, event) => {\n                                    const distance = tuiDistanceBetweenTouches(event);\n\n                                    return {\n                                        event,\n                                        distance,\n                                        delta:\n                                            (distance - prev.distance) *\n                                            TOUCH_SENSITIVITY,\n                                    };\n                                },\n                                {\n                                    event: startEvent,\n                                    distance: tuiDistanceBetweenTouches(startEvent),\n                                    delta: 0,\n                                },\n                            ),\n                            map(({event, delta}) => {\n                                const clientX =\n                                    ((event.touches[0]?.clientX ?? 0) +\n                                        (event.touches[1]?.clientX ?? 0)) /\n                                    2;\n                                const clientY =\n                                    ((event.touches[0]?.clientY ?? 0) +\n                                        (event.touches[1]?.clientY ?? 0)) /\n                                    2;\n\n                                return {clientX, clientY, delta, event};\n                            }),\n                            takeUntil(tuiTypedFromEvent(el, 'touchend')),\n                        ),\n                    ),\n                ),\n                tuiTypedFromEvent(el, 'wheel', {passive: false}).pipe(\n                    tuiPreventDefault(),\n                    map((wheel) => ({\n                        clientX: wheel.clientX,\n                        clientY: wheel.clientY,\n                        delta: -wheel.deltaY * wheelSensitivity,\n                        event: wheel,\n                    })),\n                ),\n            ).subscribe(subscriber),\n        );\n    }\n}\n","import {Directive, inject} from '@angular/core';\n\nimport {TuiZoomService} from './zoom.service';\n\n@Directive({\n    standalone: true,\n    selector: '[tuiZoom]',\n    outputs: ['tuiZoom'],\n    providers: [TuiZoomService],\n    host: {\n        '[style.touch-action]': '\"none\"',\n    },\n})\nexport class TuiZoom {\n    protected readonly tuiZoom = inject(TuiZoomService);\n}\n","/**\n * Generated bundle index. 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