@angular/material
Version:
Angular Material
161 lines • 19.2 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { Injectable, Optional, SkipSelf, Directive } from '@angular/core';
import { DateAdapter } from '@angular/material/core';
import { Subject } from 'rxjs';
/** A class representing a range of dates. */
export class DateRange {
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. */
export class MatDateSelectionModel {
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.asObservable();
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) {
this.selection = value;
this._selectionChanged.next({ selection: value, source });
}
ngOnDestroy() {
this._selectionChanged.complete();
}
_isValidDateInstance(date) {
return this._adapter.isDateInstance(date) && this._adapter.isValid(date);
}
}
MatDateSelectionModel.decorators = [
{ type: Directive }
];
MatDateSelectionModel.ctorParameters = () => [
{ type: undefined },
{ type: DateAdapter }
];
/** A selection model that contains a single date. */
export class MatSingleDateSelectionModel extends MatDateSelectionModel {
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;
}
}
MatSingleDateSelectionModel.decorators = [
{ type: Injectable }
];
MatSingleDateSelectionModel.ctorParameters = () => [
{ type: DateAdapter }
];
/** A selection model that contains a date range. */
export class MatRangeDateSelectionModel extends MatDateSelectionModel {
constructor(adapter) {
super(new DateRange(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 DateRange(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;
}
}
MatRangeDateSelectionModel.decorators = [
{ type: Injectable }
];
MatRangeDateSelectionModel.ctorParameters = () => [
{ type: DateAdapter }
];
/** @docs-private */
export function MAT_SINGLE_DATE_SELECTION_MODEL_FACTORY(parent, adapter) {
return parent || new MatSingleDateSelectionModel(adapter);
}
/** Used to provide a single selection model to a component. */
export const MAT_SINGLE_DATE_SELECTION_MODEL_PROVIDER = {
provide: MatDateSelectionModel,
deps: [[new Optional(), new SkipSelf(), MatDateSelectionModel], DateAdapter],
useFactory: MAT_SINGLE_DATE_SELECTION_MODEL_FACTORY,
};
/** @docs-private */
export function MAT_RANGE_DATE_SELECTION_MODEL_FACTORY(parent, adapter) {
return parent || new MatRangeDateSelectionModel(adapter);
}
/** Used to provide a range selection model to a component. */
export const MAT_RANGE_DATE_SELECTION_MODEL_PROVIDER = {
provide: MatDateSelectionModel,
deps: [[new Optional(), new SkipSelf(), MatDateSelectionModel], DateAdapter],
useFactory: MAT_RANGE_DATE_SELECTION_MODEL_FACTORY,
};
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D : NonNullable<T>;\n\n/** Event emitted by the date selection model when its selection changes. */\nexport interface DateSelectionModelChange<S> {\n  /** New value for the selection. */\n  selection: S;\n\n  /** Object that triggered the change. */\n  source: unknown;\n}\n\n/** A selection model containing a date selection. */\n@Directive()\nexport abstract class MatDateSelectionModel<S, D = ExtractDateTypeFromSelection<S>>\n    implements OnDestroy {\n  private _selectionChanged = new Subject<DateSelectionModelChange<S>>();\n\n  /** Emits when the selection has changed. */\n  selectionChanged: Observable<DateSelectionModelChange<S>> = this._selectionChanged.asObservable();\n\n  protected constructor(\n    /** The current selection. */\n    readonly selection: S,\n    protected _adapter: DateAdapter<D>) {\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    (this as {selection: S}).selection = value;\n    this._selectionChanged.next({selection: value, source});\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\n/**  A selection model that contains a single date. */\n@Injectable()\nexport class MatSingleDateSelectionModel<D> extends MatDateSelectionModel<D | null, D> {\n  constructor(adapter: DateAdapter<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\n/**  A selection model that contains a date range. */\n@Injectable()\nexport class MatRangeDateSelectionModel<D> extends MatDateSelectionModel<DateRange<D>, D> {\n  constructor(adapter: DateAdapter<D>) {\n    super(new DateRange<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 DateRange<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 this._isValidDateInstance(start) && this._isValidDateInstance(end) &&\n             this._adapter.compareDate(start, end) <= 0;\n    }\n\n    // Partial ranges are valid if the start/end is valid.\n    return (start == null || this._isValidDateInstance(start)) &&\n           (end == null || this._isValidDateInstance(end));\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\n/** @docs-private */\nexport function MAT_SINGLE_DATE_SELECTION_MODEL_FACTORY(\n    parent: MatSingleDateSelectionModel<unknown>, adapter: DateAdapter<unknown>) {\n  return parent || new MatSingleDateSelectionModel(adapter);\n}\n\n/** Used to provide a single selection model to a component. */\nexport const MAT_SINGLE_DATE_SELECTION_MODEL_PROVIDER: FactoryProvider = {\n  provide: MatDateSelectionModel,\n  deps: [[new Optional(), new SkipSelf(), MatDateSelectionModel], DateAdapter],\n  useFactory: MAT_SINGLE_DATE_SELECTION_MODEL_FACTORY,\n};\n\n\n/** @docs-private */\nexport function MAT_RANGE_DATE_SELECTION_MODEL_FACTORY(\n    parent: MatSingleDateSelectionModel<unknown>, adapter: DateAdapter<unknown>) {\n  return parent || new MatRangeDateSelectionModel(adapter);\n}\n\n/** Used to provide a range selection model to a component. */\nexport const MAT_RANGE_DATE_SELECTION_MODEL_PROVIDER: FactoryProvider = {\n  provide: MatDateSelectionModel,\n  deps: [[new Optional(), new SkipSelf(), MatDateSelectionModel], DateAdapter],\n  useFactory: MAT_RANGE_DATE_SELECTION_MODEL_FACTORY,\n};\n"]}