devextreme
Version:
JavaScript/TypeScript Component Suite for Responsive Web Development
55 lines (54 loc) • 2.15 kB
JavaScript
/**
* DevExtreme (esm/__internal/scheduler/appointments/resizing/get_delta_time.js)
* Version: 25.2.8
* Build date: Mon Jun 08 2026
*
* Copyright (c) 2012 - 2026 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import dateUtils from "../../../../core/utils/date";
import {
VERTICAL_VIEW_TYPES
} from "../../constants";
const toMs = dateUtils.dateToMilliseconds;
const MIN_RESIZABLE_STEP = 2;
const getAllDayDeltaWidth = (args, initialSize, resizableStep) => {
const intervalWidth = resizableStep || 2;
const initialWidth = initialSize.width;
return Math.round((args.width - initialWidth) / intervalWidth)
};
const getHorizontalDeltaTime = (args, initialSize, _ref) => {
let {
cellSize: cellSize,
cellDurationInMinutes: cellDurationInMinutes
} = _ref;
const deltaWidth = args.width - initialSize.width;
const deltaTime = toMs("minute") * Math.round(deltaWidth * cellDurationInMinutes / cellSize.width);
return deltaTime
};
const getVerticalDeltaTime = (args, initialSize, _ref2) => {
let {
cellSize: cellSize,
cellDurationInMinutes: cellDurationInMinutes
} = _ref2;
const deltaHeight = args.height - initialSize.height;
const deltaTime = toMs("minute") * Math.round(deltaHeight * cellDurationInMinutes / cellSize.height);
return deltaTime
};
export const getDeltaTime = (args, initialSize, options) => {
const {
viewType: viewType,
resizableStep: resizableStep,
isAllDayPanel: isAllDayPanel
} = options;
switch (true) {
case ["timelineMonth", "month"].includes(viewType) || Boolean(isAllDayPanel):
return getAllDayDeltaWidth(args, initialSize, resizableStep) * toMs("day");
case "agenda" === viewType:
return 0;
case VERTICAL_VIEW_TYPES.includes(viewType) && !isAllDayPanel:
return getVerticalDeltaTime(args, initialSize, options);
default:
return getHorizontalDeltaTime(args, initialSize, options)
}
};