devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/__internal/scheduler/m_appointments_layout_manager.js)
* Version: 24.2.7
* Build date: Mon Apr 28 2025
*
* Copyright (c) 2012 - 2025 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import _extends from "@babel/runtime/helpers/esm/extends";
import {
equalByValue
} from "../../core/utils/common";
import dateUtils from "../../core/utils/date";
import {
getCellDuration,
getGroupCount
} from "../scheduler/r1/utils/index";
import {
AppointmentViewModelGenerator
} from "./appointments/m_view_model_generator";
import {
getAllDayHeight,
getCellHeight,
getCellWidth
} from "./workspaces/helpers/m_position_helper";
const toMs = dateUtils.dateToMilliseconds;
const appointmentRenderingStrategyMap = {
day: "vertical",
week: "week",
workWeek: "week",
month: "horizontalMonth",
timelineDay: "horizontal",
timelineWeek: "horizontal",
timelineWorkWeek: "horizontal",
timelineMonth: "horizontalMonthLine",
agenda: "agenda"
};
class AppointmentLayoutManager {
constructor(instance) {
this.instance = instance;
this.appointmentViewModel = new AppointmentViewModelGenerator
}
get appointmentRenderingStrategyName() {
return appointmentRenderingStrategyMap[this.instance.currentViewType]
}
getCellDimensions(options) {
if (this.instance._workSpace) {
return {
width: this.instance._workSpace.getCellWidth(),
height: this.instance._workSpace.getCellHeight(),
allDayHeight: this.instance._workSpace.getAllDayHeight()
}
}
return
}
_getRenderingStrategyOptions() {
const workspace = this.instance.getWorkSpace();
const {
virtualScrollingDispatcher: virtualScrollingDispatcher
} = this.instance.getWorkSpace();
const {
cellCountInsideLeftVirtualCell: cellCountInsideLeftVirtualCell,
cellCountInsideTopVirtualRow: cellCountInsideTopVirtualRow
} = virtualScrollingDispatcher;
const groupCount = getGroupCount(this.instance.option("loadedResources"));
const DOMMetaData = workspace.getDOMElementsMetaData();
const allDayHeight = getAllDayHeight(workspace.option("showAllDayPanel"), workspace._isVerticalGroupedWorkSpace(), DOMMetaData);
const rowCount = workspace._getRowCount();
const {
positionHelper: positionHelper,
viewDataProvider: viewDataProvider
} = workspace;
const visibleDayDuration = viewDataProvider.getVisibleDayDuration(workspace.option("startDayHour"), workspace.option("endDayHour"), workspace.option("hoursInterval"));
const cellDuration = getCellDuration(workspace.type, workspace.option("startDayHour"), workspace.option("endDayHour"), workspace.option("hoursInterval"));
return {
resources: this.instance.option("resources"),
loadedResources: this.instance.option("loadedResources"),
getAppointmentColor: this.instance.createGetAppointmentColor(),
dataAccessors: this.instance._dataAccessors,
appointmentRenderingStrategyName: this.appointmentRenderingStrategyName,
adaptivityEnabled: this.instance.option("adaptivityEnabled"),
rtlEnabled: this.instance.option("rtlEnabled"),
startDayHour: this.instance._getCurrentViewOption("startDayHour"),
endDayHour: this.instance._getCurrentViewOption("endDayHour"),
viewOffset: this.instance._getCurrentViewOption("offset") * toMs("minute"),
maxAppointmentsPerCell: this.instance._getCurrentViewOption("maxAppointmentsPerCell"),
currentDate: this.instance.option("currentDate"),
isVirtualScrolling: this.instance.isVirtualScrolling(),
leftVirtualCellCount: cellCountInsideLeftVirtualCell,
topVirtualCellCount: cellCountInsideTopVirtualRow,
intervalCount: workspace.option("intervalCount"),
hoursInterval: workspace.option("hoursInterval"),
showAllDayPanel: workspace.option("showAllDayPanel"),
isGroupedAllDayPanel: workspace.isGroupedAllDayPanel(),
groups: this.instance._getCurrentViewOption("groups"),
groupCount: groupCount,
rowCount: rowCount,
appointmentCountPerCell: this.instance.option("_appointmentCountPerCell"),
appointmentOffset: this.instance.option("_appointmentOffset"),
allowResizing: this.instance._allowResizing(),
allowAllDayResizing: this.instance._allowAllDayResizing(),
startViewDate: workspace.getStartViewDate(),
groupOrientation: workspace._getRealGroupOrientation(),
cellWidth: getCellWidth(DOMMetaData),
cellHeight: getCellHeight(DOMMetaData),
allDayHeight: allDayHeight,
resizableStep: positionHelper.getResizableStep(),
visibleDayDuration: visibleDayDuration,
allDayPanelMode: this.instance._getCurrentViewOption("allDayPanelMode"),
timeZoneCalculator: this.instance.timeZoneCalculator,
timeZone: this.instance.option("timeZone"),
firstDayOfWeek: this.instance.getFirstDayOfWeek(),
viewStartDayHour: this.instance._getCurrentViewOption("startDayHour"),
viewEndDayHour: this.instance._getCurrentViewOption("endDayHour"),
viewType: workspace.type,
endViewDate: workspace.getEndViewDate(),
positionHelper: positionHelper,
isGroupedByDate: workspace.isGroupedByDate(),
cellDuration: cellDuration,
cellDurationInMinutes: workspace.option("cellDuration"),
viewDataProvider: workspace.viewDataProvider,
supportAllDayRow: workspace.supportAllDayRow(),
dateRange: workspace.getDateRange(),
intervalDuration: workspace.getIntervalDuration(),
allDayIntervalDuration: workspace.getIntervalDuration(true),
isVerticalGroupOrientation: workspace.isVerticalOrientation(),
DOMMetaData: DOMMetaData,
instance: this.instance,
agendaDuration: workspace.option("agendaDuration")
}
}
createAppointmentsMap(items) {
const renderingStrategyOptions = this._getRenderingStrategyOptions();
const {
viewModel: viewModel,
positionMap: positionMap
} = this.appointmentViewModel.generate(items, renderingStrategyOptions);
this._positionMap = positionMap;
return viewModel
}
_isDataChanged(data) {
const {
appointmentDataProvider: appointmentDataProvider
} = this.instance;
const updatedData = appointmentDataProvider.getUpdatedAppointment();
return updatedData === data || appointmentDataProvider.getUpdatedAppointmentKeys().some((item => data[item.key] === item.value))
}
_isAppointmentShouldAppear(currentAppointment, sourceAppointment) {
return currentAppointment.needRepaint && sourceAppointment.needRemove
}
_isSettingChanged(settings, sourceSetting) {
if (settings.length !== sourceSetting.length) {
return true
}
const createSettingsToCompare = currentSetting => {
const leftVirtualCellCount = currentSetting.leftVirtualCellCount || 0;
const topVirtualCellCount = currentSetting.topVirtualCellCount || 0;
const columnIndex = currentSetting.columnIndex + leftVirtualCellCount;
const rowIndex = currentSetting.rowIndex + topVirtualCellCount;
const hMax = currentSetting.reduced ? currentSetting.hMax : void 0;
const vMax = currentSetting.reduced ? currentSetting.vMax : void 0;
return _extends({}, currentSetting, {
columnIndex: columnIndex,
rowIndex: rowIndex,
positionByMap: void 0,
topVirtualCellCount: void 0,
leftVirtualCellCount: void 0,
leftVirtualWidth: void 0,
topVirtualHeight: void 0,
hMax: hMax,
vMax: vMax,
info: {}
})
};
for (let i = 0; i < settings.length; i++) {
const newSettings = createSettingsToCompare(settings[i]);
const oldSettings = createSettingsToCompare(sourceSetting[i]);
if (oldSettings) {
oldSettings.sortedIndex = newSettings.sortedIndex
}
if (!equalByValue(newSettings, oldSettings)) {
return true
}
}
return false
}
_getAssociatedSourceAppointment(currentAppointment, sourceAppointments) {
for (let i = 0; i < sourceAppointments.length; i++) {
const item = sourceAppointments[i];
if (item.itemData === currentAppointment.itemData) {
return item
}
}
return null
}
_getDeletedAppointments(currentAppointments, sourceAppointments) {
const result = [];
for (let i = 0; i < sourceAppointments.length; i++) {
const sourceAppointment = sourceAppointments[i];
const currentAppointment = this._getAssociatedSourceAppointment(sourceAppointment, currentAppointments);
if (!currentAppointment) {
sourceAppointment.needRemove = true;
result.push(sourceAppointment)
}
}
return result
}
getRepaintedAppointments(currentAppointments, sourceAppointments) {
if (0 === sourceAppointments.length || "agenda" === this.appointmentRenderingStrategyName) {
return currentAppointments
}
currentAppointments.forEach((appointment => {
const sourceAppointment = this._getAssociatedSourceAppointment(appointment, sourceAppointments);
if (sourceAppointment) {
const isDataChanged = this._isDataChanged(appointment.itemData);
const isSettingChanged = this._isSettingChanged(appointment.settings, sourceAppointment.settings);
const isAppointmentShouldAppear = this._isAppointmentShouldAppear(appointment, sourceAppointment);
appointment.needRepaint = isDataChanged || isSettingChanged || isAppointmentShouldAppear
}
}));
return currentAppointments.concat(this._getDeletedAppointments(currentAppointments, sourceAppointments))
}
getRenderingStrategyInstance() {
const renderingStrategy = this.appointmentViewModel.getRenderingStrategy();
if (!renderingStrategy) {
const options = this._getRenderingStrategyOptions();
this.appointmentViewModel.initRenderingStrategy(options)
}
return this.appointmentViewModel.getRenderingStrategy()
}
}
export default AppointmentLayoutManager;