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@taiga-ui/core

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Core library for creating Angular components and applications using Taiga UI

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import { __decorate } from "tslib"; import { Directive, EventEmitter, inject, Output } from '@angular/core'; import { EMPTY_CLIENT_RECT } from '@taiga-ui/cdk/constants'; import { tuiInjectElement } from '@taiga-ui/cdk/utils/dom'; import { tuiPure } from '@taiga-ui/cdk/utils/miscellaneous'; import { tuiFallbackAccessor, TuiPositionAccessor, TuiRectAccessor, } from '@taiga-ui/core/classes'; import { TUI_VIEWPORT } from '@taiga-ui/core/tokens'; import { TuiDropdownDirective } from './dropdown.directive'; import { TUI_DROPDOWN_OPTIONS } from './dropdown-options.directive'; import * as i0 from "@angular/core"; class TuiDropdownPosition extends TuiPositionAccessor { constructor() { super(...arguments); this.el = tuiInjectElement(); this.options = inject(TUI_DROPDOWN_OPTIONS); this.viewport = inject(TUI_VIEWPORT); this.directionChange = new EventEmitter(); this.type = 'dropdown'; this.accessor = tuiFallbackAccessor('dropdown')(inject(TuiRectAccessor), inject(TuiDropdownDirective, { optional: true })); } emitDirection(direction) { this.directionChange.emit(direction); } getPosition({ width, height }) { if (!width && !height) { this.previous = undefined; } const hostRect = this.accessor?.getClientRect() ?? EMPTY_CLIENT_RECT; const viewportRect = this.viewport.getClientRect(); const { minHeight, direction, offset, limitWidth } = this.options; const align = this.getAlign(this.options.align); const viewport = { top: viewportRect.top - offset, bottom: viewportRect.bottom + offset, right: viewportRect.right - offset, left: viewportRect.left + offset, }; const previous = this.previous || direction || 'bottom'; const available = { top: hostRect.top - 2 * offset - viewport.top, bottom: viewport.bottom - hostRect.bottom - 2 * offset, }; const rectWidth = limitWidth === 'fixed' ? hostRect.width : width; const right = Math.max(hostRect.right - rectWidth, offset); const left = hostRect.left + width < viewport.right ? hostRect.left : right; const position = { top: hostRect.top - offset - height, bottom: hostRect.bottom + offset, right: Math.max(viewport.left, right), center: hostRect.left + hostRect.width / 2 + width / 2 < viewport.right ? hostRect.left + hostRect.width / 2 - width / 2 : right, left: Math.max(viewport.left, left), }; const better = available.top > available.bottom ? 'top' : 'bottom'; if ((available[previous] > minHeight && direction) || available[previous] > height) { this.emitDirection(previous); return [position[previous], position[align]]; } this.previous = better; this.emitDirection(better); return [position[better], position[align]]; } getAlign(align) { const rtl = this.el.matches('[dir="rtl"] :scope'); if (rtl && align === 'left') { return 'right'; } return rtl && align === 'right' ? 'left' : align; } static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiDropdownPosition, deps: null, target: i0.ɵɵFactoryTarget.Directive }); } static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: TuiDropdownPosition, isStandalone: true, outputs: { directionChange: "tuiDropdownDirectionChange" }, usesInheritance: true, ngImport: i0 }); } } __decorate([ tuiPure ], TuiDropdownPosition.prototype, "emitDirection", null); export { TuiDropdownPosition }; i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiDropdownPosition, decorators: [{ type: Directive, args: [{ standalone: true, }] }], propDecorators: { directionChange: [{ type: Output, args: ['tuiDropdownDirectionChange'] }], emitDirection: [] } }); //# 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{Directive, EventEmitter, inject, Output} from '@angular/core';\nimport {EMPTY_CLIENT_RECT} from '@taiga-ui/cdk/constants';\nimport {tuiInjectElement} from '@taiga-ui/cdk/utils/dom';\nimport {tuiPure} from '@taiga-ui/cdk/utils/miscellaneous';\nimport {\n    tuiFallbackAccessor,\n    TuiPositionAccessor,\n    TuiRectAccessor,\n} from '@taiga-ui/core/classes';\nimport {TUI_VIEWPORT} from '@taiga-ui/core/tokens';\nimport {type TuiPoint, type TuiVerticalDirection} from '@taiga-ui/core/types';\n\nimport {TuiDropdownDirective} from './dropdown.directive';\nimport {TUI_DROPDOWN_OPTIONS, type TuiDropdownAlign} from './dropdown-options.directive';\n\n@Directive({\n    standalone: true,\n})\nexport class TuiDropdownPosition extends TuiPositionAccessor {\n    private readonly el = tuiInjectElement();\n    private readonly options = inject(TUI_DROPDOWN_OPTIONS);\n    private readonly viewport = inject(TUI_VIEWPORT);\n\n    private previous?: TuiVerticalDirection;\n\n    @Output('tuiDropdownDirectionChange')\n    public readonly directionChange = new EventEmitter<TuiVerticalDirection>();\n\n    public readonly type = 'dropdown';\n    public readonly accessor: TuiRectAccessor | null =\n        tuiFallbackAccessor<TuiRectAccessor>('dropdown')(\n            inject<any>(TuiRectAccessor),\n            inject(TuiDropdownDirective, {optional: true})!,\n        );\n\n    @tuiPure\n    public emitDirection(direction: TuiVerticalDirection): void {\n        this.directionChange.emit(direction);\n    }\n\n    public getPosition({width, height}: DOMRect): TuiPoint {\n        if (!width && !height) {\n            this.previous = undefined;\n        }\n\n        const hostRect = this.accessor?.getClientRect() ?? EMPTY_CLIENT_RECT;\n        const viewportRect = this.viewport.getClientRect();\n        const {minHeight, direction, offset, limitWidth} = this.options;\n        const align = this.getAlign(this.options.align);\n        const viewport = {\n            top: viewportRect.top - offset,\n            bottom: viewportRect.bottom + offset,\n            right: viewportRect.right - offset,\n            left: viewportRect.left + offset,\n        } as const;\n        const previous = this.previous || direction || 'bottom';\n        const available = {\n            top: hostRect.top - 2 * offset - viewport.top,\n            bottom: viewport.bottom - hostRect.bottom - 2 * offset,\n        } as const;\n        const rectWidth = limitWidth === 'fixed' ? hostRect.width : width;\n        const right = Math.max(hostRect.right - rectWidth, offset);\n        const left = hostRect.left + width < viewport.right ? hostRect.left : right;\n        const position = {\n            top: hostRect.top - offset - height,\n            bottom: hostRect.bottom + offset,\n            right: Math.max(viewport.left, right),\n            center:\n                hostRect.left + hostRect.width / 2 + width / 2 < viewport.right\n                    ? hostRect.left + hostRect.width / 2 - width / 2\n                    : right,\n            left: Math.max(viewport.left, left),\n        } as const;\n        const better: TuiVerticalDirection =\n            available.top > available.bottom ? 'top' : 'bottom';\n\n        if (\n            (available[previous] > minHeight && direction) ||\n            available[previous] > height\n        ) {\n            this.emitDirection(previous);\n\n            return [position[previous], position[align]];\n        }\n\n        this.previous = better;\n        this.emitDirection(better);\n\n        return [position[better], position[align]];\n    }\n\n    public getAlign(align: TuiDropdownAlign): TuiDropdownAlign {\n        const rtl = this.el.matches('[dir=\"rtl\"] :scope');\n\n        if (rtl && align === 'left') {\n            return 'right';\n        }\n\n        return rtl && align === 'right' ? 'left' : align;\n    }\n}\n"]}