devextreme/esm/ui/scheduler/resources/agendaResourceProcessor.js

HTML5 JavaScript Component Suite for Responsive Web Development

/**
 * DevExtreme (esm/ui/scheduler/resources/agendaResourceProcessor.js)
 * Version: 21.1.4
 * Build date: Mon Jun 21 2021
 *
 * Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */
import {
    wrapToArray
} from "../../../core/utils/array";
import {
    when,
    Deferred
} from "../../../core/utils/deferred";
import {
    getFieldExpr,
    getDisplayExpr,
    getValueExpr,
    getWrappedDataSource
} from "./utils";
class PromiseItem {
    constructor(rawAppointment, promise) {
        this.rawAppointment = rawAppointment;
        this.promise = promise
    }
}
export class AgendaResourceProcessor {
    get resourceDeclarations() {
        return this._resourceDeclarations
    }
    set resourceDeclarations(value) {
        this._resourceDeclarations = value;
        this.isLoaded = false;
        this.isLoading = false;
        this.resourceMap.clear();
        this.appointmentPromiseQueue = []
    }
    constructor() {
        this._resourceDeclarations = [];
        this.isLoaded = false;
        this.isLoading = false;
        this.resourceMap = new Map;
        this.appointmentPromiseQueue = []
    }
    _pushAllResources() {
        this.appointmentPromiseQueue.forEach(_ref => {
            var {
                promise: promise,
                rawAppointment: rawAppointment
            } = _ref;
            var result = [];
            this.resourceMap.forEach((resource, fieldName) => {
                var item = {
                    label: resource.label,
                    values: []
                };
                if (fieldName in rawAppointment) {
                    wrapToArray(rawAppointment[fieldName]).forEach(value => item.values.push(resource.map.get(value)))
                }
                if (item.values.length) {
                    result.push(item)
                }
            });
            promise.resolve(result)
        });
        this.appointmentPromiseQueue = []
    }
    _onPullResource(fieldName, valueName, displayName, label, items) {
        var map = new Map;
        items.forEach(item => map.set(item[valueName], item[displayName]));
        this.resourceMap.set(fieldName, {
            label: label,
            map: map
        })
    }
    _hasResourceDeclarations(resources) {
        if (0 === resources.length) {
            this.appointmentPromiseQueue.forEach(_ref2 => {
                var {
                    promise: promise
                } = _ref2;
                return promise.resolve([])
            });
            this.appointmentPromiseQueue = [];
            return false
        }
        return true
    }
    _tryPullResources(resources, resultAsync) {
        if (!this.isLoading) {
            this.isLoading = true;
            var promises = [];
            resources.forEach(resource => {
                var promise = (new Deferred).done(items => this._onPullResource(getFieldExpr(resource), getValueExpr(resource), getDisplayExpr(resource), resource.label, items));
                promises.push(promise);
                var dataSource = getWrappedDataSource(resource.dataSource);
                if (dataSource.isLoaded()) {
                    promise.resolve(dataSource.items())
                } else {
                    dataSource.load().done(list => promise.resolve(list)).fail(() => promise.reject())
                }
            });
            when.apply(null, promises).done(() => {
                this.isLoaded = true;
                this.isLoading = false;
                this._pushAllResources()
            }).fail(() => resultAsync.reject())
        }
    }
    initializeState() {
        var resourceDeclarations = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : [];
        this.resourceDeclarations = resourceDeclarations
    }
    createListAsync(rawAppointment) {
        var resultAsync = new Deferred;
        this.appointmentPromiseQueue.push(new PromiseItem(rawAppointment, resultAsync));
        if (this._hasResourceDeclarations(this.resourceDeclarations)) {
            if (this.isLoaded) {
                this._pushAllResources()
            } else {
                this._tryPullResources(this.resourceDeclarations, resultAsync)
            }
        }
        return resultAsync.promise()
    }
}