@taiga-ui/addon-mobile/fesm2022/taiga-ui-addon-mobile-directives-touchable.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-touchable.mjs","sources":["../../../projects/addon-mobile/directives/touchable/touchable.directive.ts","../../../projects/addon-mobile/directives/touchable/taiga-ui-addon-mobile-directives-touchable.ts"],"sourcesContent":["import {Directive, inject, Input} from '@angular/core';\nimport {takeUntilDestroyed} from '@angular/core/rxjs-interop';\nimport {tuiTypedFromEvent} from '@taiga-ui/cdk/observables';\nimport {TUI_IS_IOS} from '@taiga-ui/cdk/tokens';\nimport {tuiInjectElement} from '@taiga-ui/cdk/utils/dom';\nimport {filter, map, race, switchMap, take, tap} from 'rxjs';\n\nconst STYLE = {\n    transform: 'scale(0.95)',\n    opacity: '0.6',\n    background: 'rgba(146, 153, 162, 0.12)',\n} as const;\n\nexport function tuiFindTouchIndex(touches: TouchList, id: number): number {\n    for (let i = 0; i < touches.length; i++) {\n        if (touches[i]?.identifier === id) {\n            return i;\n        }\n    }\n\n    return -1;\n}\n\n@Directive({\n    standalone: true,\n    selector: '[tuiTouchable]',\n})\nexport class TuiTouchable {\n    private readonly isIOS = inject(TUI_IS_IOS);\n    private readonly el = tuiInjectElement();\n\n    @Input()\n    public tuiTouchable: '' | 'background' | 'opacity' | 'transform' = '';\n\n    constructor() {\n        if (!this.isIOS) {\n            return;\n        }\n\n        tuiTypedFromEvent(this.el, 'touchstart', {passive: true})\n            .pipe(\n                tap(() => this.onTouchStart()),\n                map(({touches}) => touches[touches.length - 1]?.identifier),\n                switchMap((identifier) =>\n                    race(\n                        tuiTypedFromEvent(this.el, 'touchmove', {passive: true}).pipe(\n                            filter(({touches}) =>\n                                this.hasTouchLeft(this.el, touches, identifier ?? 0),\n                            ),\n                        ),\n                        tuiTypedFromEvent(this.el, 'touchend'),\n                    ).pipe(take(1)),\n                ),\n                takeUntilDestroyed(),\n            )\n            .subscribe(() => {\n                this.el.style.removeProperty('transform');\n                this.el.style.removeProperty('opacity');\n                this.el.style.removeProperty('background');\n            });\n    }\n\n    protected get style(): 'background' | 'opacity' | 'transform' {\n        return this.tuiTouchable || 'transform';\n    }\n\n    private hasTouchLeft(\n        element: HTMLElement,\n        touches: TouchList,\n        identifier: number,\n    ): boolean {\n        const {ownerDocument} = element;\n        const id = tuiFindTouchIndex(touches, identifier);\n\n        if (!ownerDocument || id === -1) {\n            return true;\n        }\n\n        const {clientX = 0, clientY = 0} = touches[id] ?? {};\n\n        return !element.contains(ownerDocument.elementFromPoint(clientX, clientY));\n    }\n\n    private onTouchStart(): void {\n        if (this.style !== 'transform') {\n            this.el.style.removeProperty('transition');\n        } else {\n            this.el.style.setProperty('transition', 'transform 0.2s');\n        }\n\n        this.el.style.setProperty(this.style, STYLE[this.style]);\n    }\n}\n","/**\n * Generated bundle index. 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