@taiga-ui/core/esm2022/directives/hint/hint-position.directive.mjs

Core library for creating Angular components and applications using Taiga UI

import { __decorate } from "tslib";
import { Directive, EventEmitter, inject, Input, Output } from '@angular/core';
import { EMPTY_CLIENT_RECT } from '@taiga-ui/cdk/constants';
import { TUI_IS_MOBILE } from '@taiga-ui/cdk/tokens';
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 { TuiHintDirective } from './hint.directive';
import { TUI_HINT_DIRECTIONS, TUI_HINT_OPTIONS, } from './hint-options.directive';
import * as i0 from "@angular/core";
const GAP = 8;
const ARROW_OFFSET = 24;
const TOP = 0;
const LEFT = 1;
class TuiHintPosition extends TuiPositionAccessor {
    constructor() {
        super(...arguments);
        this.el = tuiInjectElement();
        this.offset = inject(TUI_IS_MOBILE) ? 16 : 8;
        this.viewport = inject(TUI_VIEWPORT);
        this.accessor = tuiFallbackAccessor('hint')(inject(TuiRectAccessor), inject(TuiHintDirective));
        this.points = TUI_HINT_DIRECTIONS.reduce((acc, direction) => ({ ...acc, [direction]: [0, 0] }), {});
        this.direction = inject(TUI_HINT_OPTIONS).direction;
        this.directionChange = new EventEmitter();
        this.type = 'hint';
    }
    emitDirection(direction) {
        this.directionChange.emit(direction);
    }
    getPosition(rect, el) {
        const width = el?.clientWidth ?? rect.width;
        const height = el?.clientHeight ?? rect.height;
        const hostRect = this.accessor.getClientRect() ?? EMPTY_CLIENT_RECT;
        const leftCenter = hostRect.left + hostRect.width / 2;
        const topCenter = hostRect.top + hostRect.height / 2;
        const rtl = this.el.matches('[dir="rtl"] :scope');
        this.points['top-left'][TOP] = hostRect.top - height - this.offset;
        this.points['top-left'][LEFT] = leftCenter - width + ARROW_OFFSET;
        this.points.top[TOP] = this.points['top-left'][TOP];
        this.points.top[LEFT] = leftCenter - width / 2;
        this.points['top-right'][TOP] = this.points['top-left'][TOP];
        this.points['top-right'][LEFT] = leftCenter - ARROW_OFFSET;
        this.points['bottom-left'][TOP] = hostRect.bottom + this.offset;
        this.points['bottom-left'][LEFT] = this.points['top-left'][LEFT];
        this.points.bottom[TOP] = this.points['bottom-left'][TOP];
        this.points.bottom[LEFT] = this.points.top[LEFT];
        this.points['bottom-right'][TOP] = this.points['bottom-left'][TOP];
        this.points['bottom-right'][LEFT] = this.points['top-right'][LEFT];
        this.points['left-top'][TOP] = topCenter - height + ARROW_OFFSET;
        this.points['left-top'][LEFT] = hostRect.left - width - this.offset;
        this.points.left[TOP] = topCenter - height / 2;
        this.points.left[LEFT] = this.points['left-top'][LEFT];
        this.points['left-bottom'][TOP] = topCenter - ARROW_OFFSET;
        this.points['left-bottom'][LEFT] = this.points['left-top'][LEFT];
        this.points['right-top'][TOP] = this.points['left-top'][TOP];
        this.points['right-top'][LEFT] = hostRect.right + this.offset;
        this.points.right[TOP] = this.points.left[TOP];
        this.points.right[LEFT] = this.points['right-top'][LEFT];
        this.points['right-bottom'][TOP] = this.points['left-bottom'][TOP];
        this.points['right-bottom'][LEFT] = this.points['right-top'][LEFT];
        const array = Array.isArray(this.direction) ? this.direction : [this.direction];
        const priority = array.map((direction) => adjust(direction, rtl));
        const direction = priority
            .concat(TUI_HINT_DIRECTIONS)
            .find((dir) => this.checkPosition(this.points[dir], width, height)) ||
            this.fallback;
        this.emitDirection(adjust(direction, rtl));
        return this.points[direction];
    }
    get fallback() {
        return this.points.top[TOP] >
            this.viewport.getClientRect().bottom - this.points.bottom[TOP]
            ? 'top'
            : 'bottom';
    }
    checkPosition([top, left], width, height) {
        const viewport = this.viewport.getClientRect();
        return (top > viewport.top + GAP &&
            left > viewport.left + GAP &&
            top + height < viewport.bottom - GAP &&
            left + width < viewport.right - GAP);
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiHintPosition, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }
    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: TuiHintPosition, isStandalone: true, inputs: { direction: ["tuiHintDirection", "direction"] }, outputs: { directionChange: "tuiHintDirectionChange" }, usesInheritance: true, ngImport: i0 }); }
}
__decorate([
    tuiPure
], TuiHintPosition.prototype, "emitDirection", null);
export { TuiHintPosition };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TuiHintPosition, decorators: [{
            type: Directive,
            args: [{
                    standalone: true,
                }]
        }], propDecorators: { direction: [{
                type: Input,
                args: ['tuiHintDirection']
            }], directionChange: [{
                type: Output,
                args: ['tuiHintDirectionChange']
            }], emitDirection: [] } });
function adjust(direction, rtl) {
    if (rtl && direction.includes('left')) {
        return direction.replace('left', 'right');
    }
    if (rtl && direction.includes('right')) {
        return direction.replace('right', 'left');
    }
    return direction;
}
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{Directive, EventEmitter, inject, Input, Output} from '@angular/core';\nimport {EMPTY_CLIENT_RECT} from '@taiga-ui/cdk/constants';\nimport {TUI_IS_MOBILE} from '@taiga-ui/cdk/tokens';\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} from '@taiga-ui/core/types';\n\nimport {TuiHintDirective} from './hint.directive';\nimport {\n    TUI_HINT_DIRECTIONS,\n    TUI_HINT_OPTIONS,\n    type TuiHintDirection,\n    type TuiHintOptions,\n} from './hint-options.directive';\n\nconst GAP = 8;\nconst ARROW_OFFSET = 24;\nconst TOP = 0;\nconst LEFT = 1;\n\n@Directive({\n    standalone: true,\n})\nexport class TuiHintPosition extends TuiPositionAccessor {\n    private readonly el = tuiInjectElement();\n    private readonly offset = inject(TUI_IS_MOBILE) ? 16 : 8;\n    private readonly viewport = inject(TUI_VIEWPORT);\n    private readonly accessor = tuiFallbackAccessor<TuiRectAccessor>('hint')(\n        inject<any>(TuiRectAccessor),\n        inject(TuiHintDirective),\n    );\n\n    private readonly points: Record<TuiHintDirection, [number, number]> =\n        TUI_HINT_DIRECTIONS.reduce(\n            (acc, direction) => ({...acc, [direction]: [0, 0]}),\n            {} as Record<TuiHintDirection, [number, number]>,\n        );\n\n    @Input('tuiHintDirection')\n    public direction: TuiHintOptions['direction'] = inject(TUI_HINT_OPTIONS).direction;\n\n    @Output('tuiHintDirectionChange')\n    public readonly directionChange = new EventEmitter<TuiHintDirection>();\n\n    public readonly type = 'hint';\n\n    @tuiPure\n    public emitDirection(direction: TuiHintDirection): void {\n        this.directionChange.emit(direction);\n    }\n\n    public getPosition(rect: DOMRect, el?: HTMLElement): TuiPoint {\n        const width = el?.clientWidth ?? rect.width;\n        const height = el?.clientHeight ?? rect.height;\n        const hostRect = this.accessor.getClientRect() ?? EMPTY_CLIENT_RECT;\n        const leftCenter = hostRect.left + hostRect.width / 2;\n        const topCenter = hostRect.top + hostRect.height / 2;\n        const rtl = this.el.matches('[dir=\"rtl\"] :scope');\n\n        this.points['top-left'][TOP] = hostRect.top - height - this.offset;\n        this.points['top-left'][LEFT] = leftCenter - width + ARROW_OFFSET;\n        this.points.top[TOP] = this.points['top-left'][TOP];\n        this.points.top[LEFT] = leftCenter - width / 2;\n        this.points['top-right'][TOP] = this.points['top-left'][TOP];\n        this.points['top-right'][LEFT] = leftCenter - ARROW_OFFSET;\n\n        this.points['bottom-left'][TOP] = hostRect.bottom + this.offset;\n        this.points['bottom-left'][LEFT] = this.points['top-left'][LEFT];\n        this.points.bottom[TOP] = this.points['bottom-left'][TOP];\n        this.points.bottom[LEFT] = this.points.top[LEFT];\n        this.points['bottom-right'][TOP] = this.points['bottom-left'][TOP];\n        this.points['bottom-right'][LEFT] = this.points['top-right'][LEFT];\n\n        this.points['left-top'][TOP] = topCenter - height + ARROW_OFFSET;\n        this.points['left-top'][LEFT] = hostRect.left - width - this.offset;\n        this.points.left[TOP] = topCenter - height / 2;\n        this.points.left[LEFT] = this.points['left-top'][LEFT];\n        this.points['left-bottom'][TOP] = topCenter - ARROW_OFFSET;\n        this.points['left-bottom'][LEFT] = this.points['left-top'][LEFT];\n\n        this.points['right-top'][TOP] = this.points['left-top'][TOP];\n        this.points['right-top'][LEFT] = hostRect.right + this.offset;\n        this.points.right[TOP] = this.points.left[TOP];\n        this.points.right[LEFT] = this.points['right-top'][LEFT];\n        this.points['right-bottom'][TOP] = this.points['left-bottom'][TOP];\n        this.points['right-bottom'][LEFT] = this.points['right-top'][LEFT];\n\n        const array = Array.isArray(this.direction) ? this.direction : [this.direction];\n        const priority = array.map((direction) => adjust(direction, rtl));\n        const direction =\n            priority\n                .concat(TUI_HINT_DIRECTIONS)\n                .find((dir) => this.checkPosition(this.points[dir], width, height)) ||\n            this.fallback;\n\n        this.emitDirection(adjust(direction, rtl));\n\n        return this.points[direction];\n    }\n\n    private get fallback(): TuiHintDirection {\n        return this.points.top[TOP] >\n            this.viewport.getClientRect().bottom - this.points.bottom[TOP]\n            ? 'top'\n            : 'bottom';\n    }\n\n    private checkPosition([top, left]: TuiPoint, width: number, height: number): boolean {\n        const viewport = this.viewport.getClientRect();\n\n        return (\n            top > viewport.top + GAP &&\n            left > viewport.left + GAP &&\n            top + height < viewport.bottom - GAP &&\n            left + width < viewport.right - GAP\n        );\n    }\n}\n\nfunction adjust(direction: TuiHintDirection, rtl: boolean): TuiHintDirection {\n    if (rtl && direction.includes('left')) {\n        return direction.replace('left', 'right') as TuiHintDirection;\n    }\n\n    if (rtl && direction.includes('right')) {\n        return direction.replace('right', 'left') as TuiHintDirection;\n    }\n\n    return direction;\n}\n"]}