devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/__internal/scheduler/header/m_header.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 _extends from "@babel/runtime/helpers/esm/extends";
import "../../../ui/button_group";
import "../../../ui/drop_down_button";
import registerComponent from "../../../core/component_registrator";
import devices from "../../../core/devices";
import errors from "../../../core/errors";
import $ from "../../../core/renderer";
import dateUtils from "../../../core/utils/date";
import {
extend
} from "../../../core/utils/extend";
import Toolbar from "../../../ui/toolbar";
import Widget from "../../../ui/widget/ui.widget";
import {
viewsUtils
} from "../../scheduler/r1/utils/index";
import SchedulerCalendar from "./m_calendar";
import {
getDateNavigator
} from "./m_date_navigator";
import {
getCaption,
getNextIntervalDate,
getStep,
getViewName,
getViewType,
nextWeek,
validateViews
} from "./m_utils";
import {
getDropDownViewSwitcher,
getViewSwitcher
} from "./m_view_switcher";
const DEFAULT_ELEMENT = "defaultElement";
const VIEW_SWITCHER = "viewSwitcher";
const DATE_NAVIGATOR = "dateNavigator";
const COMPONENT_CLASS = "dx-scheduler-header";
export class SchedulerHeader extends Widget {
get views() {
return this.option("views")
}
get captionText() {
return this._getCaption().text
}
get intervalOptions() {
const step = getStep(this.currentView);
const intervalCount = this.option("intervalCount");
const firstDayOfWeek = this.option("firstDayOfWeek");
const agendaDuration = this.option("agendaDuration");
return {
step: step,
intervalCount: intervalCount,
firstDayOfWeek: firstDayOfWeek,
agendaDuration: agendaDuration
}
}
_getDefaultOptions() {
return extend(super._getDefaultOptions(), {
_useShortDateFormat: !devices.real().generic || devices.isSimulator()
})
}
_createEventMap() {
this.eventMap = new Map([
["currentView", [view => {
this.currentView = viewsUtils.getCurrentView(getViewName(view), this.option("views"))
}]],
["items", [this.repaint.bind(this)]],
["views", [validateViews]],
["currentDate", [this._getCalendarOptionUpdater("value")]],
["min", [this._getCalendarOptionUpdater("min")]],
["max", [this._getCalendarOptionUpdater("max")]],
["tabIndex", [this.repaint.bind(this)]],
["focusStateEnabled", [this.repaint.bind(this)]],
["useDropDownViewSwitcher", [this.repaint.bind(this)]]
])
}
_addEvent(name, event) {
if (!this.eventMap.has(name)) {
this.eventMap.set(name, [])
}
const events = this.eventMap.get(name);
this.eventMap.set(name, [...events, event])
}
_optionChanged(args) {
const {
name: name,
value: value
} = args;
if (this.eventMap.has(name)) {
const events = this.eventMap.get(name);
events.forEach((event => {
event(value)
}))
}
}
_init() {
super._init();
this._createEventMap();
this.$element().addClass(COMPONENT_CLASS);
this.currentView = viewsUtils.getCurrentView(getViewName(this.option("currentView")), this.option("views"))
}
_render() {
super._render();
this._createEventMap();
this._renderToolbar()
}
_renderToolbar() {
const config = this._createToolbarConfig();
const toolbarElement = $("<div>");
toolbarElement.appendTo(this.$element());
this._toolbar = this._createComponent(toolbarElement, Toolbar, config)
}
_createToolbarConfig() {
const items = this.option("items");
const parsedItems = items.map((element => this._parseItem(element)));
return {
items: parsedItems
}
}
_parseItem(item) {
const isDefaultElement = this._isDefaultItem(item);
if (isDefaultElement) {
const defaultElementType = item[DEFAULT_ELEMENT];
switch (defaultElementType) {
case VIEW_SWITCHER:
if (this.option("useDropDownViewSwitcher")) {
return getDropDownViewSwitcher(this, item)
}
return getViewSwitcher(this, item);
case DATE_NAVIGATOR:
this._renderCalendar();
return getDateNavigator(this, item);
default:
errors.log(`Unknown default element type: ${defaultElementType}`)
}
}
return item
}
_callEvent(event, arg) {
if (this.eventMap.has(event)) {
const events = this.eventMap.get(event);
events.forEach((event => event(arg)))
}
}
_updateCurrentView(view) {
const onCurrentViewChange = this.option("onCurrentViewChange");
onCurrentViewChange(view.name);
this._callEvent("currentView", view)
}
_updateCalendarValueAndCurrentDate(date) {
this._updateCurrentDate(date);
this._calendar.option("value", date)
}
_updateCurrentDate(date) {
const onCurrentDateChange = this.option("onCurrentDateChange");
onCurrentDateChange(date);
this._callEvent("currentDate", date)
}
_renderCalendar() {
this._calendar = this._createComponent("<div>", SchedulerCalendar, {
value: this.option("currentDate"),
min: this.option("min"),
max: this.option("max"),
firstDayOfWeek: this.option("firstDayOfWeek"),
focusStateEnabled: this.option("focusStateEnabled"),
tabIndex: this.option("tabIndex"),
onValueChanged: e => {
this._updateCurrentDate(e.value);
this._calendar.hide()
}
});
this._calendar.$element().appendTo(this.$element())
}
_getCalendarOptionUpdater(name) {
return value => {
if (this._calendar) {
this._calendar.option(name, value)
}
}
}
_getNextDate(direction) {
let initialDate = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : null;
const date = initialDate ?? this.option("currentDate");
const options = _extends({}, this.intervalOptions, {
date: date
});
return getNextIntervalDate(options, direction)
}
_isMonth() {
const {
currentView: currentView
} = this;
return "month" === getViewType(currentView)
}
_getDisplayedDate() {
const startViewDate = this.option("startViewDate");
if (this._isMonth()) {
return nextWeek(startViewDate)
}
return new Date(startViewDate)
}
_getCaption() {
let date = this.option("currentDate");
if (this.option("startViewDate")) {
date = this._getDisplayedDate()
}
date = dateUtils.trimTime(date);
const options = _extends({}, this.intervalOptions, {
date: date
});
const customizationFunction = this.option("customizeDateNavigatorText");
const useShortDateFormat = this.option("_useShortDateFormat");
return getCaption(options, useShortDateFormat, customizationFunction)
}
_updateDateByDirection(direction) {
const date = this._getNextDate(direction);
this._updateCalendarValueAndCurrentDate(date)
}
_showCalendar(e) {
this._calendar.show(e.element)
}
_hideCalendar() {
this._calendar.hide()
}
_isDefaultItem(item) {
return Object.prototype.hasOwnProperty.call(item, DEFAULT_ELEMENT)
}
}
registerComponent("dxSchedulerHeader", SchedulerHeader);