devextreme
Version:
JavaScript/TypeScript Component Suite for Responsive Web Development
49 lines (48 loc) • 1.91 kB
JavaScript
/**
* DevExtreme (esm/__internal/scheduler/appointments/utils/get_view_model_diff.js)
* Version: 25.2.5
* Build date: Fri Feb 20 2026
*
* Copyright (c) 2012 - 2026 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import {
equalByValue
} from "../../../../core/utils/common";
import {
getArraysDiff
} from "./get_arrays_diff";
const getObjectToCompare = item => {
if ("isAgendaModel" in item) {
return {}
}
if ("items" in item) {
return {
allDay: item.allDay,
groupIndex: item.groupIndex,
top: item.top,
left: item.left,
items: item.items.length
}
}
return {
allDay: item.allDay,
groupIndex: item.groupIndex,
direction: item.direction,
left: item.left,
top: item.top,
height: item.height,
width: item.width,
reduced: item.reduced,
partIndex: item.partIndex,
partTotalCount: item.partTotalCount,
rowIndex: item.rowIndex,
columnIndex: item.columnIndex
}
};
const isDataChanged = (data, appointmentDataSource) => {
const updatedData = appointmentDataSource.getUpdatedAppointment();
return updatedData === data || appointmentDataSource.getUpdatedAppointmentKeys().some((item => data[item.key] === item.value))
};
const compareViewModel = appointmentDataSource => (viewModelOld, viewModelNext) => viewModelOld.itemData === viewModelNext.itemData && !isDataChanged(viewModelNext.itemData, appointmentDataSource) && equalByValue(getObjectToCompare(viewModelOld), getObjectToCompare(viewModelNext));
export const getViewModelDiff = (viewModelOld, viewModelNext, appointmentDataSource) => getArraysDiff(viewModelOld, viewModelNext, compareViewModel(appointmentDataSource));