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import { Injectable, Optional, SkipSelf } from '@angular/core'; import { Subject } from 'rxjs'; import { NgxMatDateAdapter } from './core/date-adapter'; import * as i0 from "@angular/core"; import * as i1 from "./core/date-adapter"; /** A class representing a range of dates. */ export class NgxDateRange { constructor( /** The start date of the range. */ start, /** The end date of the range. */ end) { this.start = start; this.end = end; } } /** * A selection model containing a date selection. * @docs-private */ export class NgxMatDateSelectionModel { constructor( /** The current selection. */ selection, _adapter) { this.selection = selection; this._adapter = _adapter; this._selectionChanged = new Subject(); /** Emits when the selection has changed. */ this.selectionChanged = this._selectionChanged; this.selection = selection; } /** * Updates the current selection in the model. * @param value New selection that should be assigned. * @param source Object that triggered the selection change. */ updateSelection(value, source) { const oldValue = this.selection; this.selection = value; this._selectionChanged.next({ selection: value, source, oldValue }); } ngOnDestroy() { this._selectionChanged.complete(); } _isValidDateInstance(date) { return this._adapter.isDateInstance(date) && this._adapter.isValid(date); } /** @nocollapse */ static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatDateSelectionModel, deps: "invalid", target: i0.ɵɵFactoryTarget.Injectable }); } /** @nocollapse */ static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatDateSelectionModel }); } } i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatDateSelectionModel, decorators: [{ type: Injectable }], ctorParameters: () => [{ type: undefined }, { type: i1.NgxMatDateAdapter }] }); /** * A selection model that contains a single date. * @docs-private */ export class NgxMatSingleDateSelectionModel extends NgxMatDateSelectionModel { constructor(adapter) { super(null, adapter); } /** * Adds a date to the current selection. In the case of a single date selection, the added date * simply overwrites the previous selection */ add(date) { super.updateSelection(date, this); } /** Checks whether the current selection is valid. */ isValid() { return this.selection != null && this._isValidDateInstance(this.selection); } /** * Checks whether the current selection is complete. In the case of a single date selection, this * is true if the current selection is not null. */ isComplete() { return this.selection != null; } /** Clones the selection model. */ clone() { const clone = new NgxMatSingleDateSelectionModel(this._adapter); clone.updateSelection(this.selection, this); return clone; } /** @nocollapse */ static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatSingleDateSelectionModel, deps: [{ token: i1.NgxMatDateAdapter }], target: i0.ɵɵFactoryTarget.Injectable }); } /** @nocollapse */ static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatSingleDateSelectionModel }); } } i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatSingleDateSelectionModel, decorators: [{ type: Injectable }], ctorParameters: () => [{ type: i1.NgxMatDateAdapter }] }); /** * A selection model that contains a date range. * @docs-private */ export class NgxMatRangeDateSelectionModel extends NgxMatDateSelectionModel { constructor(adapter) { super(new NgxDateRange(null, null), adapter); } /** * Adds a date to the current selection. In the case of a date range selection, the added date * fills in the next `null` value in the range. If both the start and the end already have a date, * the selection is reset so that the given date is the new `start` and the `end` is null. */ add(date) { let { start, end } = this.selection; if (start == null) { start = date; } else if (end == null) { end = date; } else { start = date; end = null; } super.updateSelection(new NgxDateRange(start, end), this); } /** Checks whether the current selection is valid. */ isValid() { const { start, end } = this.selection; // Empty ranges are valid. if (start == null && end == null) { return true; } // Complete ranges are only valid if both dates are valid and the start is before the end. if (start != null && end != null) { return (this._isValidDateInstance(start) && this._isValidDateInstance(end) && this._adapter.compareDate(start, end) <= 0); } // Partial ranges are valid if the start/end is valid. return ((start == null || this._isValidDateInstance(start)) && (end == null || this._isValidDateInstance(end))); } /** * Checks whether the current selection is complete. In the case of a date range selection, this * is true if the current selection has a non-null `start` and `end`. */ isComplete() { return this.selection.start != null && this.selection.end != null; } /** Clones the selection model. */ clone() { const clone = new NgxMatRangeDateSelectionModel(this._adapter); clone.updateSelection(this.selection, this); return clone; } /** @nocollapse */ static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatRangeDateSelectionModel, deps: [{ token: i1.NgxMatDateAdapter }], target: i0.ɵɵFactoryTarget.Injectable }); } /** @nocollapse */ static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatRangeDateSelectionModel }); } } i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.0.9", ngImport: i0, type: NgxMatRangeDateSelectionModel, decorators: [{ type: Injectable }], ctorParameters: () => [{ type: i1.NgxMatDateAdapter }] }); /** @docs-private */ export function NGX_MAT_SINGLE_DATE_SELECTION_MODEL_FACTORY(parent, adapter) { return parent || new NgxMatSingleDateSelectionModel(adapter); } /** * Used to provide a single selection model to a component. * @docs-private */ export const NGX_MAT_SINGLE_DATE_SELECTION_MODEL_PROVIDER = { provide: NgxMatDateSelectionModel, deps: [[new Optional(), new SkipSelf(), NgxMatDateSelectionModel], NgxMatDateAdapter], useFactory: NGX_MAT_SINGLE_DATE_SELECTION_MODEL_FACTORY, }; /** @docs-private */ export function NGX_MAT_RANGE_DATE_SELECTION_MODEL_FACTORY(parent, adapter) { return parent || new NgxMatRangeDateSelectionModel(adapter); } /** * Used to provide a range selection model to a component. * @docs-private */ export const NGX_MAT_RANGE_DATE_SELECTION_MODEL_PROVIDER = { provide: NgxMatDateSelectionModel, deps: [[new Optional(), new SkipSelf(), NgxMatDateSelectionModel], NgxMatDateAdapter], useFactory: NGX_MAT_RANGE_DATE_SELECTION_MODEL_FACTORY, }; //# 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{ FactoryProvider, Injectable, OnDestroy, Optional, SkipSelf } from '@angular/core';\nimport { Observable, Subject } from 'rxjs';\nimport { NgxMatDateAdapter } from './core/date-adapter';\n\n/** A class representing a range of dates. */\nexport class NgxDateRange<D> {\n  /**\n   * Ensures that objects with a `start` and `end` property can't be assigned to a variable that\n   * expects a `DateRange`\n   */\n  // tslint:disable-next-line:no-unused-variable\n  private _disableStructuralEquivalency: never;\n\n  constructor(\n    /** The start date of the range. */\n    readonly start: D | null,\n    /** The end date of the range. */\n    readonly end: D | null,\n  ) { }\n}\n\n/**\n * Conditionally picks the date type, if a DateRange is passed in.\n * @docs-private\n */\nexport type NgxExtractDateTypeFromSelection<T> = T extends NgxDateRange<infer D> ? D : NonNullable<T>;\n\n/**\n * Event emitted by the date selection model when its selection changes.\n * @docs-private\n */\nexport interface NgxDateSelectionModelChange<S> {\n  /** New value for the selection. */\n  selection: S;\n\n  /** Object that triggered the change. */\n  source: unknown;\n\n  /** Previous value */\n  oldValue?: S;\n}\n\n/**\n * A selection model containing a date selection.\n * @docs-private\n */\n@Injectable()\nexport abstract class NgxMatDateSelectionModel<S, D = NgxExtractDateTypeFromSelection<S>>\n  implements OnDestroy {\n  private readonly _selectionChanged = new Subject<NgxDateSelectionModelChange<S>>();\n\n  /** Emits when the selection has changed. */\n  selectionChanged: Observable<NgxDateSelectionModelChange<S>> = this._selectionChanged;\n\n  protected constructor(\n    /** The current selection. */\n    readonly selection: S,\n    protected _adapter: NgxMatDateAdapter<D>,\n  ) {\n    this.selection = selection;\n  }\n\n  /**\n   * Updates the current selection in the model.\n   * @param value New selection that should be assigned.\n   * @param source Object that triggered the selection change.\n   */\n  updateSelection(value: S, source: unknown) {\n    const oldValue = (this as { selection: S }).selection;\n    (this as { selection: S }).selection = value;\n    this._selectionChanged.next({ selection: value, source, oldValue });\n  }\n\n  ngOnDestroy() {\n    this._selectionChanged.complete();\n  }\n\n  protected _isValidDateInstance(date: D): boolean {\n    return this._adapter.isDateInstance(date) && this._adapter.isValid(date);\n  }\n\n  /** Adds a date to the current selection. */\n  abstract add(date: D | null): void;\n\n  /** Checks whether the current selection is valid. */\n  abstract isValid(): boolean;\n\n  /** Checks whether the current selection is complete. */\n  abstract isComplete(): boolean;\n\n  /** Clones the selection model. */\n  abstract clone(): NgxMatDateSelectionModel<S, D>;\n}\n\n/**\n * A selection model that contains a single date.\n * @docs-private\n */\n@Injectable()\nexport class NgxMatSingleDateSelectionModel<D> extends NgxMatDateSelectionModel<D | null, D> {\n  constructor(adapter: NgxMatDateAdapter<D>) {\n    super(null, adapter);\n  }\n\n  /**\n   * Adds a date to the current selection. In the case of a single date selection, the added date\n   * simply overwrites the previous selection\n   */\n  add(date: D | null) {\n    super.updateSelection(date, this);\n  }\n\n  /** Checks whether the current selection is valid. */\n  isValid(): boolean {\n    return this.selection != null && this._isValidDateInstance(this.selection);\n  }\n\n  /**\n   * Checks whether the current selection is complete. In the case of a single date selection, this\n   * is true if the current selection is not null.\n   */\n  isComplete() {\n    return this.selection != null;\n  }\n\n  /** Clones the selection model. */\n  clone() {\n    const clone = new NgxMatSingleDateSelectionModel<D>(this._adapter);\n    clone.updateSelection(this.selection, this);\n    return clone;\n  }\n}\n\n/**\n * A selection model that contains a date range.\n * @docs-private\n */\n@Injectable()\nexport class NgxMatRangeDateSelectionModel<D> extends NgxMatDateSelectionModel<NgxDateRange<D>, D> {\n  constructor(adapter: NgxMatDateAdapter<D>) {\n    super(new NgxDateRange<D>(null, null), adapter);\n  }\n\n  /**\n   * Adds a date to the current selection. In the case of a date range selection, the added date\n   * fills in the next `null` value in the range. If both the start and the end already have a date,\n   * the selection is reset so that the given date is the new `start` and the `end` is null.\n   */\n  add(date: D | null): void {\n    let { start, end } = this.selection;\n\n    if (start == null) {\n      start = date;\n    } else if (end == null) {\n      end = date;\n    } else {\n      start = date;\n      end = null;\n    }\n\n    super.updateSelection(new NgxDateRange<D>(start, end), this);\n  }\n\n  /** Checks whether the current selection is valid. */\n  isValid(): boolean {\n    const { start, end } = this.selection;\n\n    // Empty ranges are valid.\n    if (start == null && end == null) {\n      return true;\n    }\n\n    // Complete ranges are only valid if both dates are valid and the start is before the end.\n    if (start != null && end != null) {\n      return (\n        this._isValidDateInstance(start) &&\n        this._isValidDateInstance(end) &&\n        this._adapter.compareDate(start, end) <= 0\n      );\n    }\n\n    // Partial ranges are valid if the start/end is valid.\n    return (\n      (start == null || this._isValidDateInstance(start)) &&\n      (end == null || this._isValidDateInstance(end))\n    );\n  }\n\n  /**\n   * Checks whether the current selection is complete. In the case of a date range selection, this\n   * is true if the current selection has a non-null `start` and `end`.\n   */\n  isComplete(): boolean {\n    return this.selection.start != null && this.selection.end != null;\n  }\n\n  /** Clones the selection model. */\n  clone() {\n    const clone = new NgxMatRangeDateSelectionModel<D>(this._adapter);\n    clone.updateSelection(this.selection, this);\n    return clone;\n  }\n}\n\n/** @docs-private */\nexport function NGX_MAT_SINGLE_DATE_SELECTION_MODEL_FACTORY(\n  parent: NgxMatSingleDateSelectionModel<unknown>,\n  adapter: NgxMatDateAdapter<unknown>,\n) {\n  return parent || new NgxMatSingleDateSelectionModel(adapter);\n}\n\n/**\n * Used to provide a single selection model to a component.\n * @docs-private\n */\nexport const NGX_MAT_SINGLE_DATE_SELECTION_MODEL_PROVIDER: FactoryProvider = {\n  provide: NgxMatDateSelectionModel,\n  deps: [[new Optional(), new SkipSelf(), NgxMatDateSelectionModel], NgxMatDateAdapter],\n  useFactory: NGX_MAT_SINGLE_DATE_SELECTION_MODEL_FACTORY,\n};\n\n/** @docs-private */\nexport function NGX_MAT_RANGE_DATE_SELECTION_MODEL_FACTORY(\n  parent: NgxMatSingleDateSelectionModel<unknown>,\n  adapter: NgxMatDateAdapter<unknown>,\n) {\n  return parent || new NgxMatRangeDateSelectionModel(adapter);\n}\n\n/**\n * Used to provide a range selection model to a component.\n * @docs-private\n */\nexport const NGX_MAT_RANGE_DATE_SELECTION_MODEL_PROVIDER: FactoryProvider = {\n  provide: NgxMatDateSelectionModel,\n  deps: [[new Optional(), new SkipSelf(), NgxMatDateSelectionModel], NgxMatDateAdapter],\n  useFactory: NGX_MAT_RANGE_DATE_SELECTION_MODEL_FACTORY,\n};\n"]}