saturn-datepicker
Version:
Material datepicker with range support ## What is this?
255 lines • 38.8 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 * as tslib_1 from "tslib";
import { DOWN_ARROW, END, ENTER, HOME, LEFT_ARROW, PAGE_DOWN, PAGE_UP, RIGHT_ARROW, UP_ARROW, SPACE, } from '@angular/cdk/keycodes';
import { AfterContentInit, ChangeDetectionStrategy, ChangeDetectorRef, Component, EventEmitter, Inject, Input, Optional, Output, ViewChild, ViewEncapsulation, } from '@angular/core';
import { Directionality } from '@angular/cdk/bidi';
import { SatCalendarBody, SatCalendarCell } from './calendar-body';
import { createMissingDateImplError } from './datepicker-errors';
import { DateAdapter } from '../datetime/date-adapter';
import { MAT_DATE_FORMATS } from '../datetime/date-formats';
/**
* An internal component used to display a single year in the datepicker.
* @docs-private
*/
let SatYearView = class SatYearView {
constructor(_changeDetectorRef, _dateFormats, _dateAdapter, _dir) {
this._changeDetectorRef = _changeDetectorRef;
this._dateFormats = _dateFormats;
this._dateAdapter = _dateAdapter;
this._dir = _dir;
/** Emits when a new month is selected. */
this.selectedChange = new EventEmitter();
/** Emits the selected month. This doesn't imply a change on the selected date */
this.monthSelected = new EventEmitter();
/** Emits when any date is activated. */
this.activeDateChange = new EventEmitter();
if (!this._dateAdapter) {
throw createMissingDateImplError('DateAdapter');
}
if (!this._dateFormats) {
throw createMissingDateImplError('MAT_DATE_FORMATS');
}
this._activeDate = this._dateAdapter.today();
}
/** The date to display in this year view (everything other than the year is ignored). */
get activeDate() { return this._activeDate; }
set activeDate(value) {
let oldActiveDate = this._activeDate;
const validDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value)) || this._dateAdapter.today();
this._activeDate = this._dateAdapter.clampDate(validDate, this.minDate, this.maxDate);
if (this._dateAdapter.getYear(oldActiveDate) !== this._dateAdapter.getYear(this._activeDate)) {
this._init();
}
}
/** The currently selected date. */
get selected() { return this._selected; }
set selected(value) {
this._selected = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
this._selectedMonth = this._getMonthInCurrentYear(this._selected);
}
/** The minimum selectable date. */
get minDate() { return this._minDate; }
set minDate(value) {
this._minDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
}
/** The maximum selectable date. */
get maxDate() { return this._maxDate; }
set maxDate(value) {
this._maxDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
}
ngAfterContentInit() {
this._init();
}
/** Handles when a new month is selected. */
_monthSelected(month) {
const normalizedDate = this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), month, 1);
this.monthSelected.emit(normalizedDate);
const daysInMonth = this._dateAdapter.getNumDaysInMonth(normalizedDate);
this.selectedChange.emit(this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), month, Math.min(this._dateAdapter.getDate(this.activeDate), daysInMonth)));
}
/** Handles keydown events on the calendar body when calendar is in year view. */
_handleCalendarBodyKeydown(event) {
// TODO(mmalerba): We currently allow keyboard navigation to disabled dates, but just prevent
// disabled ones from being selected. This may not be ideal, we should look into whether
// navigation should skip over disabled dates, and if so, how to implement that efficiently.
const oldActiveDate = this._activeDate;
const isRtl = this._isRtl();
switch (event.keyCode) {
case LEFT_ARROW:
this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, isRtl ? 1 : -1);
break;
case RIGHT_ARROW:
this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, isRtl ? -1 : 1);
break;
case UP_ARROW:
this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, -4);
break;
case DOWN_ARROW:
this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, 4);
break;
case HOME:
this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, -this._dateAdapter.getMonth(this._activeDate));
break;
case END:
this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, 11 - this._dateAdapter.getMonth(this._activeDate));
break;
case PAGE_UP:
this.activeDate =
this._dateAdapter.addCalendarYears(this._activeDate, event.altKey ? -10 : -1);
break;
case PAGE_DOWN:
this.activeDate =
this._dateAdapter.addCalendarYears(this._activeDate, event.altKey ? 10 : 1);
break;
case ENTER:
case SPACE:
this._monthSelected(this._dateAdapter.getMonth(this._activeDate));
break;
default:
// Don't prevent default or focus active cell on keys that we don't explicitly handle.
return;
}
if (this._dateAdapter.compareDate(oldActiveDate, this.activeDate)) {
this.activeDateChange.emit(this.activeDate);
}
this._focusActiveCell();
// Prevent unexpected default actions such as form submission.
event.preventDefault();
}
/** Initializes this year view. */
_init() {
this._selectedMonth = this._getMonthInCurrentYear(this.selected);
this._todayMonth = this._getMonthInCurrentYear(this._dateAdapter.today());
this._yearLabel = this._dateAdapter.getYearName(this.activeDate);
let monthNames = this._dateAdapter.getMonthNames('short');
// First row of months only contains 5 elements so we can fit the year label on the same row.
this._months = [[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10, 11]].map(row => row.map(month => this._createCellForMonth(month, monthNames[month])));
this._changeDetectorRef.markForCheck();
}
/** Focuses the active cell after the microtask queue is empty. */
_focusActiveCell() {
this._matCalendarBody._focusActiveCell();
}
/**
* Gets the month in this year that the given Date falls on.
* Returns null if the given Date is in another year.
*/
_getMonthInCurrentYear(date) {
return date && this._dateAdapter.getYear(date) == this._dateAdapter.getYear(this.activeDate) ?
this._dateAdapter.getMonth(date) : null;
}
/** Creates an SatCalendarCell for the given month. */
_createCellForMonth(month, monthName) {
let ariaLabel = this._dateAdapter.format(this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), month, 1), this._dateFormats.display.monthYearA11yLabel);
return new SatCalendarCell(month, monthName.toLocaleUpperCase(), ariaLabel, this._shouldEnableMonth(month));
}
/** Whether the given month is enabled. */
_shouldEnableMonth(month) {
const activeYear = this._dateAdapter.getYear(this.activeDate);
if (month === undefined || month === null ||
this._isYearAndMonthAfterMaxDate(activeYear, month) ||
this._isYearAndMonthBeforeMinDate(activeYear, month)) {
return false;
}
if (!this.dateFilter) {
return true;
}
const firstOfMonth = this._dateAdapter.createDate(activeYear, month, 1);
// If any date in the month is enabled count the month as enabled.
for (let date = firstOfMonth; this._dateAdapter.getMonth(date) == month; date = this._dateAdapter.addCalendarDays(date, 1)) {
if (this.dateFilter(date)) {
return true;
}
}
return false;
}
/**
* Tests whether the combination month/year is after this.maxDate, considering
* just the month and year of this.maxDate
*/
_isYearAndMonthAfterMaxDate(year, month) {
if (this.maxDate) {
const maxYear = this._dateAdapter.getYear(this.maxDate);
const maxMonth = this._dateAdapter.getMonth(this.maxDate);
return year > maxYear || (year === maxYear && month > maxMonth);
}
return false;
}
/**
* Tests whether the combination month/year is before this.minDate, considering
* just the month and year of this.minDate
*/
_isYearAndMonthBeforeMinDate(year, month) {
if (this.minDate) {
const minYear = this._dateAdapter.getYear(this.minDate);
const minMonth = this._dateAdapter.getMonth(this.minDate);
return year < minYear || (year === minYear && month < minMonth);
}
return false;
}
/**
* @param obj The object to check.
* @returns The given object if it is both a date instance and valid, otherwise null.
*/
_getValidDateOrNull(obj) {
return (this._dateAdapter.isDateInstance(obj) && this._dateAdapter.isValid(obj)) ? obj : null;
}
/** Determines whether the user has the RTL layout direction. */
_isRtl() {
return this._dir && this._dir.value === 'rtl';
}
};
SatYearView.ctorParameters = () => [
{ type: ChangeDetectorRef },
{ type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_FORMATS,] }] },
{ type: DateAdapter, decorators: [{ type: Optional }] },
{ type: Directionality, decorators: [{ type: Optional }] }
];
tslib_1.__decorate([
Input()
], SatYearView.prototype, "activeDate", null);
tslib_1.__decorate([
Input()
], SatYearView.prototype, "selected", null);
tslib_1.__decorate([
Input()
], SatYearView.prototype, "minDate", null);
tslib_1.__decorate([
Input()
], SatYearView.prototype, "maxDate", null);
tslib_1.__decorate([
Input()
], SatYearView.prototype, "dateFilter", void 0);
tslib_1.__decorate([
Output()
], SatYearView.prototype, "selectedChange", void 0);
tslib_1.__decorate([
Output()
], SatYearView.prototype, "monthSelected", void 0);
tslib_1.__decorate([
Output()
], SatYearView.prototype, "activeDateChange", void 0);
tslib_1.__decorate([
ViewChild(SatCalendarBody, { static: false })
], SatYearView.prototype, "_matCalendarBody", void 0);
SatYearView = tslib_1.__decorate([
Component({
moduleId: module.id,
selector: 'sat-year-view',
template: "<table class=\"mat-calendar-table\" role=\"presentation\">\n <thead class=\"mat-calendar-table-header\">\n <tr><th class=\"mat-calendar-table-header-divider\" colspan=\"4\"></th></tr>\n </thead>\n <tbody sat-calendar-body\n [label]=\"_yearLabel\"\n [rows]=\"_months\"\n [todayValue]=\"_todayMonth\"\n [selectedValue]=\"_selectedMonth\"\n [labelMinRequiredCells]=\"2\"\n [numCols]=\"4\"\n [cellAspectRatio]=\"4 / 7\"\n [activeCell]=\"_dateAdapter.getMonth(activeDate)\"\n (selectedValueChange)=\"_monthSelected($event)\"\n (keydown)=\"_handleCalendarBodyKeydown($event)\">\n </tbody>\n</table>\n",
exportAs: 'matYearView',
encapsulation: ViewEncapsulation.None,
changeDetection: ChangeDetectionStrategy.OnPush
}),
tslib_1.__param(1, Optional()), tslib_1.__param(1, Inject(MAT_DATE_FORMATS)),
tslib_1.__param(2, Optional()),
tslib_1.__param(3, Optional())
], SatYearView);
export { SatYearView };
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {\n  DOWN_ARROW,\n  END,\n  ENTER,\n  HOME,\n  LEFT_ARROW,\n  PAGE_DOWN,\n  PAGE_UP,\n  RIGHT_ARROW,\n  UP_ARROW,\n  SPACE,\n} from '@angular/cdk/keycodes';\nimport {\n  AfterContentInit,\n  ChangeDetectionStrategy,\n  ChangeDetectorRef,\n  Component,\n  EventEmitter,\n  Inject,\n  Input,\n  Optional,\n  Output,\n  ViewChild,\n  ViewEncapsulation,\n} from '@angular/core';\nimport {Directionality} from '@angular/cdk/bidi';\nimport {SatCalendarBody, SatCalendarCell} from './calendar-body';\nimport {createMissingDateImplError} from './datepicker-errors';\nimport {DateAdapter} from '../datetime/date-adapter';\nimport {MAT_DATE_FORMATS, MatDateFormats} from '../datetime/date-formats';\n\n/**\n * An internal component used to display a single year in the datepicker.\n * @docs-private\n */\n@Component({\n  moduleId: module.id,\n  selector: 'sat-year-view',\n  templateUrl: 'year-view.html',\n  exportAs: 'matYearView',\n  encapsulation: ViewEncapsulation.None,\n  changeDetection: ChangeDetectionStrategy.OnPush\n})\nexport class SatYearView<D> implements AfterContentInit {\n  /** The date to display in this year view (everything other than the year is ignored). */\n  @Input()\n  get activeDate(): D { return this._activeDate; }\n  set activeDate(value: D) {\n    let oldActiveDate = this._activeDate;\n    const validDate =\n        this._getValidDateOrNull(this._dateAdapter.deserialize(value)) || this._dateAdapter.today();\n    this._activeDate = this._dateAdapter.clampDate(validDate, this.minDate, this.maxDate);\n    if (this._dateAdapter.getYear(oldActiveDate) !== this._dateAdapter.getYear(this._activeDate)) {\n      this._init();\n    }\n  }\n  private _activeDate: D;\n\n  /** The currently selected date. */\n  @Input()\n  get selected(): D | null { return this._selected; }\n  set selected(value: D | null) {\n    this._selected = this._getValidDateOrNull(this._dateAdapter.deserialize(value));\n    this._selectedMonth = this._getMonthInCurrentYear(this._selected);\n  }\n  private _selected: D | null;\n\n  /** The minimum selectable date. */\n  @Input()\n  get minDate(): D | null { return this._minDate; }\n  set minDate(value: D | null) {\n    this._minDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));\n  }\n  private _minDate: D | null;\n\n  /** The maximum selectable date. */\n  @Input()\n  get maxDate(): D | null { return this._maxDate; }\n  set maxDate(value: D | null) {\n    this._maxDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));\n  }\n  private _maxDate: D | null;\n\n  /** A function used to filter which dates are selectable. */\n  @Input() dateFilter: (date: D) => boolean;\n\n  /** Emits when a new month is selected. */\n  @Output() readonly selectedChange: EventEmitter<D> = new EventEmitter<D>();\n\n  /** Emits the selected month. This doesn't imply a change on the selected date */\n  @Output() readonly monthSelected: EventEmitter<D> = new EventEmitter<D>();\n\n  /** Emits when any date is activated. */\n  @Output() readonly activeDateChange: EventEmitter<D> = new EventEmitter<D>();\n\n  /** The body of calendar table */\n  @ViewChild(SatCalendarBody, {static: false}) _matCalendarBody: SatCalendarBody;\n\n  /** Grid of calendar cells representing the months of the year. */\n  _months: SatCalendarCell[][];\n\n  /** The label for this year (e.g. \"2017\"). */\n  _yearLabel: string;\n\n  /** The month in this year that today falls on. Null if today is in a different year. */\n  _todayMonth: number | null;\n\n  /**\n   * The month in this year that the selected Date falls on.\n   * Null if the selected Date is in a different year.\n   */\n  _selectedMonth: number | null;\n\n  constructor(private _changeDetectorRef: ChangeDetectorRef,\n              @Optional() @Inject(MAT_DATE_FORMATS) private _dateFormats: MatDateFormats,\n              @Optional() public _dateAdapter: DateAdapter<D>,\n              @Optional() private _dir?: Directionality) {\n    if (!this._dateAdapter) {\n      throw createMissingDateImplError('DateAdapter');\n    }\n    if (!this._dateFormats) {\n      throw createMissingDateImplError('MAT_DATE_FORMATS');\n    }\n\n    this._activeDate = this._dateAdapter.today();\n  }\n\n  ngAfterContentInit() {\n    this._init();\n  }\n\n  /** Handles when a new month is selected. */\n  _monthSelected(month: number) {\n    const normalizedDate =\n          this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), month, 1);\n\n    this.monthSelected.emit(normalizedDate);\n\n    const daysInMonth = this._dateAdapter.getNumDaysInMonth(normalizedDate);\n\n    this.selectedChange.emit(this._dateAdapter.createDate(\n        this._dateAdapter.getYear(this.activeDate), month,\n        Math.min(this._dateAdapter.getDate(this.activeDate), daysInMonth)));\n  }\n\n  /** Handles keydown events on the calendar body when calendar is in year view. */\n  _handleCalendarBodyKeydown(event: KeyboardEvent): void {\n    // TODO(mmalerba): We currently allow keyboard navigation to disabled dates, but just prevent\n    // disabled ones from being selected. This may not be ideal, we should look into whether\n    // navigation should skip over disabled dates, and if so, how to implement that efficiently.\n\n    const oldActiveDate = this._activeDate;\n    const isRtl = this._isRtl();\n\n    switch (event.keyCode) {\n      case LEFT_ARROW:\n        this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, isRtl ? 1 : -1);\n        break;\n      case RIGHT_ARROW:\n        this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, isRtl ? -1 : 1);\n        break;\n      case UP_ARROW:\n        this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, -4);\n        break;\n      case DOWN_ARROW:\n        this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, 4);\n        break;\n      case HOME:\n        this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate,\n            -this._dateAdapter.getMonth(this._activeDate));\n        break;\n      case END:\n        this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate,\n            11 - this._dateAdapter.getMonth(this._activeDate));\n        break;\n      case PAGE_UP:\n        this.activeDate =\n            this._dateAdapter.addCalendarYears(this._activeDate, event.altKey ? -10 : -1);\n        break;\n      case PAGE_DOWN:\n        this.activeDate =\n            this._dateAdapter.addCalendarYears(this._activeDate, event.altKey ? 10 : 1);\n        break;\n      case ENTER:\n      case SPACE:\n        this._monthSelected(this._dateAdapter.getMonth(this._activeDate));\n        break;\n      default:\n        // Don't prevent default or focus active cell on keys that we don't explicitly handle.\n        return;\n    }\n\n    if (this._dateAdapter.compareDate(oldActiveDate, this.activeDate)) {\n      this.activeDateChange.emit(this.activeDate);\n    }\n\n    this._focusActiveCell();\n    // Prevent unexpected default actions such as form submission.\n    event.preventDefault();\n  }\n\n  /** Initializes this year view. */\n  _init() {\n    this._selectedMonth = this._getMonthInCurrentYear(this.selected);\n    this._todayMonth = this._getMonthInCurrentYear(this._dateAdapter.today());\n    this._yearLabel = this._dateAdapter.getYearName(this.activeDate);\n\n    let monthNames = this._dateAdapter.getMonthNames('short');\n    // First row of months only contains 5 elements so we can fit the year label on the same row.\n    this._months = [[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10, 11]].map(row => row.map(\n        month => this._createCellForMonth(month, monthNames[month])));\n    this._changeDetectorRef.markForCheck();\n  }\n\n  /** Focuses the active cell after the microtask queue is empty. */\n  _focusActiveCell() {\n    this._matCalendarBody._focusActiveCell();\n  }\n\n  /**\n   * Gets the month in this year that the given Date falls on.\n   * Returns null if the given Date is in another year.\n   */\n  private _getMonthInCurrentYear(date: D | null) {\n    return date && this._dateAdapter.getYear(date) == this._dateAdapter.getYear(this.activeDate) ?\n        this._dateAdapter.getMonth(date) : null;\n  }\n\n  /** Creates an SatCalendarCell for the given month. */\n  private _createCellForMonth(month: number, monthName: string) {\n    let ariaLabel = this._dateAdapter.format(\n        this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), month, 1),\n        this._dateFormats.display.monthYearA11yLabel);\n    return new SatCalendarCell(\n        month, monthName.toLocaleUpperCase(), ariaLabel, this._shouldEnableMonth(month));\n  }\n\n  /** Whether the given month is enabled. */\n  private _shouldEnableMonth(month: number) {\n\n    const activeYear = this._dateAdapter.getYear(this.activeDate);\n\n    if (month === undefined || month === null ||\n        this._isYearAndMonthAfterMaxDate(activeYear, month) ||\n        this._isYearAndMonthBeforeMinDate(activeYear, month)) {\n      return false;\n    }\n\n    if (!this.dateFilter) {\n      return true;\n    }\n\n    const firstOfMonth = this._dateAdapter.createDate(activeYear, month, 1);\n\n    // If any date in the month is enabled count the month as enabled.\n    for (let date = firstOfMonth; this._dateAdapter.getMonth(date) == month;\n         date = this._dateAdapter.addCalendarDays(date, 1)) {\n      if (this.dateFilter(date)) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Tests whether the combination month/year is after this.maxDate, considering\n   * just the month and year of this.maxDate\n   */\n  private _isYearAndMonthAfterMaxDate(year: number, month: number) {\n    if (this.maxDate) {\n      const maxYear = this._dateAdapter.getYear(this.maxDate);\n      const maxMonth = this._dateAdapter.getMonth(this.maxDate);\n\n      return year > maxYear || (year === maxYear && month > maxMonth);\n    }\n\n    return false;\n  }\n\n  /**\n   * Tests whether the combination month/year is before this.minDate, considering\n   * just the month and year of this.minDate\n   */\n  private _isYearAndMonthBeforeMinDate(year: number, month: number) {\n    if (this.minDate) {\n      const minYear = this._dateAdapter.getYear(this.minDate);\n      const minMonth = this._dateAdapter.getMonth(this.minDate);\n\n      return year < minYear || (year === minYear && month < minMonth);\n    }\n\n    return false;\n  }\n\n  /**\n   * @param obj The object to check.\n   * @returns The given object if it is both a date instance and valid, otherwise null.\n   */\n  private _getValidDateOrNull(obj: any): D | null {\n    return (this._dateAdapter.isDateInstance(obj) && this._dateAdapter.isValid(obj)) ? obj : null;\n  }\n\n  /** Determines whether the user has the RTL layout direction. */\n  private _isRtl() {\n    return this._dir && this._dir.value === 'rtl';\n  }\n}\n"]}