devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (renovation/ui/scheduler/timeZoneCalculator/utils.js)
* Version: 22.1.9
* Build date: Tue Apr 18 2023
*
* Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
exports.TimeZoneCalculator = void 0;
var _type = require("../../../../core/utils/type");
var _date = _interopRequireDefault(require("../../../../core/utils/date"));
var _types = require("./types");
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
}
}
var MS_IN_MINUTE = 6e4;
var MS_IN_HOUR = 60 * MS_IN_MINUTE;
var TimeZoneCalculator = function() {
function TimeZoneCalculator(options) {
this.options = options
}
var _proto = TimeZoneCalculator.prototype;
_proto.createDate = function(sourceDate, info) {
var date = new Date(sourceDate);
switch (info.path) {
case _types.PathTimeZoneConversion.fromSourceToAppointment:
return this.getConvertedDate(date, info.appointmentTimeZone, true, false);
case _types.PathTimeZoneConversion.fromAppointmentToSource:
return this.getConvertedDate(date, info.appointmentTimeZone, true, true);
case _types.PathTimeZoneConversion.fromSourceToGrid:
return this.getConvertedDate(date, info.appointmentTimeZone, false, false);
case _types.PathTimeZoneConversion.fromGridToSource:
return this.getConvertedDate(date, info.appointmentTimeZone, false, true);
default:
throw new Error("not specified pathTimeZoneConversion")
}
};
_proto.getOffsets = function(date, appointmentTimezone) {
var clientOffset = -this.getClientOffset(date) / _date.default.dateToMilliseconds("hour");
var commonOffset = this.getCommonOffset(date);
var appointmentOffset = this.getAppointmentOffset(date, appointmentTimezone);
return {
client: clientOffset,
common: !(0, _type.isDefined)(commonOffset) ? clientOffset : commonOffset,
appointment: "number" !== typeof appointmentOffset ? clientOffset : appointmentOffset
}
};
_proto.getConvertedDateByOffsets = function(date, clientOffset, targetOffset, isBack) {
var direction = isBack ? -1 : 1;
var resultDate = new Date(date);
resultDate.setMinutes(resultDate.getMinutes() - direction * (60 * clientOffset));
resultDate.setMinutes(resultDate.getMinutes() + direction * (60 * targetOffset));
return new Date(resultDate)
};
_proto.getOriginStartDateOffsetInMs = function(date, timezone, isUTCDate) {
var offsetInHours = this.getOffsetInHours(date, timezone, isUTCDate);
return offsetInHours * MS_IN_HOUR
};
_proto.getOffsetInHours = function(date, timezone, isUTCDate) {
var _this$getOffsets = this.getOffsets(date, timezone),
appointment = _this$getOffsets.appointment,
client = _this$getOffsets.client,
common = _this$getOffsets.common;
if (!!timezone && isUTCDate) {
return appointment - client
}
if (!!timezone && !isUTCDate) {
return appointment - common
}
if (!timezone && isUTCDate) {
return common - client
}
return 0
};
_proto.getClientOffset = function(date) {
return this.options.getClientOffset(date)
};
_proto.getCommonOffset = function(date) {
return this.options.tryGetCommonOffset(date)
};
_proto.getAppointmentOffset = function(date, appointmentTimezone) {
return this.options.tryGetAppointmentOffset(date, appointmentTimezone)
};
_proto.getConvertedDate = function(date, appointmentTimezone, useAppointmentTimeZone, isBack) {
var newDate = new Date(date.getTime());
var offsets = this.getOffsets(newDate, appointmentTimezone);
if (useAppointmentTimeZone && !!appointmentTimezone) {
return this.getConvertedDateByOffsets(date, offsets.client, offsets.appointment, isBack)
}
return this.getConvertedDateByOffsets(date, offsets.client, offsets.common, isBack)
};
return TimeZoneCalculator
}();
exports.TimeZoneCalculator = TimeZoneCalculator;