devextreme/esm/__internal/scheduler/header/m_date_navigator.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (esm/__internal/scheduler/header/m_date_navigator.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 messageLocalization from "../../../common/core/localization/message";
import dateUtils from "../../../core/utils/date";
import {
    isMaterialBased
} from "../../../ui/themes";
const {
    trimTime: trimTime
} = dateUtils;
const DATE_NAVIGATOR_CLASS = "dx-scheduler-navigator";
const PREVIOUS_BUTTON_CLASS = "dx-scheduler-navigator-previous";
const CALENDAR_BUTTON_CLASS = "dx-scheduler-navigator-caption";
const NEXT_BUTTON_CLASS = "dx-scheduler-navigator-next";
const DIRECTION_LEFT = -1;
const DIRECTION_RIGHT = 1;
export const getDateNavigator = (header, item) => {
    const items = [getPreviousButtonOptions(header), getCalendarButtonOptions(header), getNextButtonOptions(header)];
    const stylingMode = isMaterialBased() ? "text" : "contained";
    return _extends({
        widget: "dxButtonGroup",
        cssClass: DATE_NAVIGATOR_CLASS,
        options: {
            items: items,
            stylingMode: stylingMode,
            selectionMode: "none",
            onItemClick: e => {
                e.itemData.clickHandler(e)
            }
        }
    }, item)
};
const getPreviousButtonOptions = header => {
    const ariaMessage = messageLocalization.format("dxScheduler-navigationPrevious");
    return {
        key: "previous",
        icon: "chevronprev",
        elementAttr: {
            class: PREVIOUS_BUTTON_CLASS,
            "aria-label": ariaMessage
        },
        clickHandler: () => header._updateDateByDirection(-1),
        onContentReady: e => {
            const previousButton = e.component;
            previousButton.option("disabled", isPreviousButtonDisabled(header));
            header._addEvent("min", (() => {
                previousButton.option("disabled", isPreviousButtonDisabled(header))
            }));
            header._addEvent("currentDate", (() => {
                previousButton.option("disabled", isPreviousButtonDisabled(header))
            }));
            header._addEvent("startViewDate", (() => {
                previousButton.option("disabled", isPreviousButtonDisabled(header))
            }))
        }
    }
};
const getCalendarButtonOptions = header => ({
    key: "calendar",
    text: header.captionText,
    elementAttr: {
        class: CALENDAR_BUTTON_CLASS
    },
    clickHandler: e => header._showCalendar(e),
    onContentReady: e => {
        const calendarButton = e.component;
        header._addEvent("currentView", (() => {
            calendarButton.option("text", header.captionText)
        }));
        header._addEvent("currentDate", (() => {
            calendarButton.option("text", header.captionText)
        }));
        header._addEvent("startViewDate", (() => {
            calendarButton.option("text", header.captionText)
        }));
        header._addEvent("views", (() => {
            calendarButton.option("text", header.captionText)
        }));
        header._addEvent("firstDayOfWeek", (() => {
            calendarButton.option("text", header.captionText)
        }))
    }
});
const getNextButtonOptions = header => {
    const ariaMessage = messageLocalization.format("dxScheduler-navigationNext");
    return {
        key: "next",
        icon: "chevronnext",
        elementAttr: {
            class: NEXT_BUTTON_CLASS,
            "aria-label": ariaMessage
        },
        clickHandler: () => header._updateDateByDirection(1),
        onContentReady: e => {
            const nextButton = e.component;
            nextButton.option("disabled", isNextButtonDisabled(header));
            header._addEvent("min", (() => {
                nextButton.option("disabled", isNextButtonDisabled(header))
            }));
            header._addEvent("currentDate", (() => {
                nextButton.option("disabled", isNextButtonDisabled(header))
            }));
            header._addEvent("startViewDate", (() => {
                nextButton.option("disabled", isNextButtonDisabled(header))
            }))
        }
    }
};
const isPreviousButtonDisabled = header => {
    let min = header.option("min");
    if (!min) {
        return false
    }
    min = new Date(min);
    const caption = header._getCaption();
    min = trimTime(min);
    const previousDate = header._getNextDate(-1, caption.endDate);
    return previousDate < min
};
const isNextButtonDisabled = header => {
    let max = header.option("max");
    if (!max) {
        return false
    }
    max = new Date(max);
    const caption = header._getCaption();
    max = max.setHours(23, 59, 59);
    const nextDate = header._getNextDate(1, caption.startDate);
    return nextDate > max
};