devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/__internal/ui/calendar/m_calendar.selection.strategy.js)
* Version: 24.2.6
* Build date: Mon Mar 17 2025
*
* Copyright (c) 2012 - 2025 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import dateUtils from "../../../core/utils/date";
import {
isDefined
} from "../../../core/utils/type";
class CalendarSelectionStrategy {
constructor(component) {
this.calendar = component
}
dateOption(optionName) {
return this.calendar._dateOption(optionName)
}
dateValue(value, e) {
this.calendar._dateValue(value, e)
}
skipNavigate() {
this.calendar._skipNavigate = true
}
updateAriaSelected(value, previousValue) {
this.calendar._updateAriaSelected(value, previousValue);
if (value[0] && this.calendar.option("currentDate").getTime() === value[0].getTime()) {
this.calendar._updateAriaId(value[0])
}
}
processValueChanged(value, previousValue) {
var _value, _previousValue;
if (isDefined(value) && !Array.isArray(value)) {
value = [value]
}
if (isDefined(previousValue) && !Array.isArray(previousValue)) {
previousValue = [previousValue]
}
value = (null === (_value = value) || void 0 === _value ? void 0 : _value.map((item => this._convertToDate(item)))) || [];
previousValue = (null === (_previousValue = previousValue) || void 0 === _previousValue ? void 0 : _previousValue.map((item => this._convertToDate(item)))) || [];
this._updateViewsValue(value);
this.updateAriaSelected(value, previousValue);
if (!this._currentDateChanged) {
this.calendar._initCurrentDate()
}
this._currentDateChanged = false
}
_isDateDisabled(date) {
const min = this.calendar._dateOption("min");
const max = this.calendar._dateOption("max");
const isLessThanMin = isDefined(min) && date < min && !dateUtils.sameDate(min, date);
const isBiggerThanMax = isDefined(max) && date > max && !dateUtils.sameDate(max, date);
return this.calendar._view.isDateDisabled(date) || isLessThanMin || isBiggerThanMax
}
_getLowestDateInArray(dates) {
if (dates.length) {
return new Date(Math.min(...dates))
}
}
_convertToDate(value) {
return this.calendar._convertToDate(value)
}
_isMaxZoomLevel() {
return this.calendar._isMaxZoomLevel()
}
_updateViewsOption(optionName, optionValue) {
this.calendar._updateViewsOption(optionName, optionValue)
}
_updateViewsValue(value) {
this._updateViewsOption("value", value)
}
_updateCurrentDate(value) {
this.calendar.option("currentDate", value ?? new Date)
}
_shouldHandleWeekNumberClick() {
const {
selectionMode: selectionMode,
selectWeekOnClick: selectWeekOnClick
} = this.calendar.option();
return selectWeekOnClick && "single" !== selectionMode
}
}
export default CalendarSelectionStrategy;