devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/__internal/scheduler/appointments/data_provider/m_utils.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 dateSerialization from "../../../../core/utils/date_serialization";
import {
ExpressionUtils
} from "../../m_expression_utils";
import timeZoneUtils from "../../m_utils_time_zone";
const toMs = dateUtils.dateToMilliseconds;
const FULL_DATE_FORMAT = "yyyyMMddTHHmmss";
export const compareDateWithStartDayHour = (startDate, endDate, startDayHour, allDay, severalDays) => {
const startTime = dateUtils.dateTimeFromDecimal(startDayHour);
const result = startDate.getHours() >= startTime.hours && startDate.getMinutes() >= startTime.minutes || endDate.getHours() === startTime.hours && endDate.getMinutes() > startTime.minutes || endDate.getHours() > startTime.hours || severalDays || allDay;
return result
};
export const compareDateWithEndDayHour = options => {
const {
startDate: startDate,
endDate: endDate,
startDayHour: startDayHour,
endDayHour: endDayHour,
viewStartDayHour: viewStartDayHour,
viewEndDayHour: viewEndDayHour,
allDay: allDay,
severalDays: severalDays,
min: min,
max: max,
checkIntersectViewport: checkIntersectViewport
} = options;
const hiddenInterval = (24 - viewEndDayHour + viewStartDayHour) * toMs("hour");
const apptDuration = endDate.getTime() - startDate.getTime();
const delta = (hiddenInterval - apptDuration) / toMs("hour");
const apptStartHour = startDate.getHours();
const apptStartMinutes = startDate.getMinutes();
let result;
const endTime = dateUtils.dateTimeFromDecimal(endDayHour);
const startTime = dateUtils.dateTimeFromDecimal(startDayHour);
const apptIntersectViewport = startDate < max && endDate > min;
result = checkIntersectViewport && apptIntersectViewport || apptStartHour < endTime.hours || apptStartHour === endTime.hours && apptStartMinutes < endTime.minutes || allDay && startDate <= max || severalDays && apptIntersectViewport && (apptStartHour < endTime.hours || 60 * endDate.getHours() + endDate.getMinutes() > 60 * startTime.hours);
if (apptDuration < hiddenInterval) {
if (apptStartHour > endTime.hours && apptStartMinutes > endTime.minutes && delta <= apptStartHour - endDayHour) {
result = false
}
}
return result
};
export const getAppointmentTakesSeveralDays = adapter => !dateUtils.sameDate(adapter.startDate, adapter.endDate);
export const _isEndDateWrong = (startDate, endDate) => !endDate || isNaN(endDate.getTime()) || startDate.getTime() > endDate.getTime();
export const _appointmentPartInInterval = (startDate, endDate, startDayHour, endDayHour) => {
const apptStartDayHour = startDate.getHours();
const apptEndDayHour = endDate.getHours();
return apptStartDayHour <= startDayHour && apptEndDayHour <= endDayHour && apptEndDayHour >= startDayHour || apptEndDayHour >= endDayHour && apptStartDayHour <= endDayHour && apptStartDayHour >= startDayHour
};
export const getRecurrenceException = (appointmentAdapter, timeZoneCalculator, timeZone) => {
const {
recurrenceException: recurrenceException
} = appointmentAdapter;
if (recurrenceException) {
const exceptions = recurrenceException.split(",");
for (let i = 0; i < exceptions.length; i++) {
exceptions[i] = _convertRecurrenceException(exceptions[i], appointmentAdapter.startDate, timeZoneCalculator, timeZone)
}
return exceptions.join()
}
return recurrenceException
};
export const _convertRecurrenceException = (exceptionString, startDate, timeZoneCalculator, timeZone) => {
exceptionString = exceptionString.replace(/\s/g, "");
const getConvertedToTimeZone = date => timeZoneCalculator.createDate(date, {
path: "toGrid"
});
const exceptionDate = dateSerialization.deserializeDate(exceptionString);
const convertedStartDate = getConvertedToTimeZone(startDate);
let convertedExceptionDate = getConvertedToTimeZone(exceptionDate);
convertedExceptionDate = timeZoneUtils.correctRecurrenceExceptionByTimezone(convertedExceptionDate, convertedStartDate, timeZone);
exceptionString = dateSerialization.serializeDate(convertedExceptionDate, FULL_DATE_FORMAT);
return exceptionString
};
export const replaceWrongEndDate = (rawAppointment, startDate, endDate, appointmentDuration, dataAccessors) => {
if (_isEndDateWrong(startDate, endDate)) {
const isAllDay = ExpressionUtils.getField(dataAccessors, "allDay", rawAppointment);
const calculatedEndDate = ((isAllDay, startDate) => {
if (isAllDay) {
return dateUtils.setToDayEnd(new Date(startDate))
}
return new Date(startDate.getTime() + appointmentDuration * toMs("minute"))
})(isAllDay, startDate);
dataAccessors.setter.endDate(rawAppointment, calculatedEndDate)
}
};
export const sortAppointmentsByStartDate = (appointments, dataAccessors) => {
appointments.sort(((a, b) => {
const firstDate = new Date(ExpressionUtils.getField(dataAccessors, "startDate", a.settings || a));
const secondDate = new Date(ExpressionUtils.getField(dataAccessors, "startDate", b.settings || b));
return Math.sign(firstDate.getTime() - secondDate.getTime())
}))
};