wwbsr/node_modules/highcharts/indicators/chaikin.src.js

/**
 * @license Highstock JS v8.2.0 (2020-08-20)
 *
 * Indicator series type for Highstock
 *
 * (c) 2010-2019 Wojciech Chmiel
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
    if (typeof module === 'object' && module.exports) {
        factory['default'] = factory;
        module.exports = factory;
    } else if (typeof define === 'function' && define.amd) {
        define('highcharts/indicators/chaikin', ['highcharts', 'highcharts/modules/stock'], function (Highcharts) {
            factory(Highcharts);
            factory.Highcharts = Highcharts;
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    var _modules = Highcharts ? Highcharts._modules : {};
    function _registerModule(obj, path, args, fn) {
        if (!obj.hasOwnProperty(path)) {
            obj[path] = fn.apply(null, args);
        }
    }
    _registerModule(_modules, 'Stock/Indicators/ADIndicator.js', [_modules['Core/Utilities.js']], function (U) {
        /* *
         *
         *  License: www.highcharts.com/license
         *
         *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
         * */
        var error = U.error,
            seriesType = U.seriesType;
        /* eslint-disable valid-jsdoc */
        // Utils:
        /**
         * @private
         */
        function populateAverage(xVal, yVal, yValVolume, i) {
            var high = yVal[i][1],
                low = yVal[i][2],
                close = yVal[i][3],
                volume = yValVolume[i],
                adY = close === high && close === low || high === low ?
                    0 :
                    ((2 * close - low - high) / (high - low)) * volume,
                adX = xVal[i];
            return [adX, adY];
        }
        /* eslint-enable valid-jsdoc */
        /**
         * The AD series type.
         *
         * @private
         * @class
         * @name Highcharts.seriesTypes.ad
         *
         * @augments Highcharts.Series
         */
        seriesType('ad', 'sma', 
        /**
         * Accumulation Distribution (AD). This series requires `linkedTo` option to
         * be set.
         *
         * @sample stock/indicators/accumulation-distribution
         *         Accumulation/Distribution indicator
         *
         * @extends      plotOptions.sma
         * @since        6.0.0
         * @product      highstock
         * @requires     stock/indicators/indicators
         * @requires     stock/indicators/accumulation-distribution
         * @optionparent plotOptions.ad
         */
        {
            params: {
                /**
                 * The id of volume series which is mandatory.
                 * For example using OHLC data, volumeSeriesID='volume' means
                 * the indicator will be calculated using OHLC and volume values.
                 *
                 * @since 6.0.0
                 */
                volumeSeriesID: 'volume'
            }
        }, 
        /**
         * @lends Highcharts.Series#
         */
        {
            nameComponents: false,
            nameBase: 'Accumulation/Distribution',
            getValues: function (series, params) {
                var period = params.period,
                    xVal = series.xData,
                    yVal = series.yData,
                    volumeSeriesID = params.volumeSeriesID,
                    volumeSeries = series.chart.get(volumeSeriesID),
                    yValVolume = volumeSeries && volumeSeries.yData,
                    yValLen = yVal ? yVal.length : 0,
                    AD = [],
                    xData = [],
                    yData = [],
                    len,
                    i,
                    ADPoint;
                if (xVal.length <= period &&
                    yValLen &&
                    yVal[0].length !== 4) {
                    return;
                }
                if (!volumeSeries) {
                    error('Series ' +
                        volumeSeriesID +
                        ' not found! Check `volumeSeriesID`.', true, series.chart);
                    return;
                }
                // i = period <-- skip first N-points
                // Calculate value one-by-one for each period in visible data
                for (i = period; i < yValLen; i++) {
                    len = AD.length;
                    ADPoint = populateAverage(xVal, yVal, yValVolume, i, period);
                    if (len > 0) {
                        ADPoint[1] += AD[len - 1][1];
                    }
                    AD.push(ADPoint);
                    xData.push(ADPoint[0]);
                    yData.push(ADPoint[1]);
                }
                return {
                    values: AD,
                    xData: xData,
                    yData: yData
                };
            }
        });
        /**
         * A `AD` series. If the [type](#series.ad.type) option is not
         * specified, it is inherited from [chart.type](#chart.type).
         *
         * @extends   series,plotOptions.ad
         * @since     6.0.0
         * @excluding dataParser, dataURL
         * @product   highstock
         * @requires  stock/indicators/indicators
         * @requires  stock/indicators/accumulation-distribution
         * @apioption series.ad
         */
        ''; // add doclet above to transpiled file

    });
    _registerModule(_modules, 'Mixins/IndicatorRequired.js', [_modules['Core/Utilities.js']], function (U) {
        /**
         *
         *  (c) 2010-2020 Daniel Studencki
         *
         *  License: www.highcharts.com/license
         *
         *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
         *
         * */
        var error = U.error;
        /* eslint-disable no-invalid-this, valid-jsdoc */
        var requiredIndicatorMixin = {
                /**
                 * Check whether given indicator is loaded,
            else throw error.
                 * @private
                 * @param {Highcharts.Indicator} indicator
                 *        Indicator constructor function.
                 * @param {string} requiredIndicator
                 *        Required indicator type.
                 * @param {string} type
                 *        Type of indicator where function was called (parent).
                 * @param {Highcharts.IndicatorCallbackFunction} callback
                 *        Callback which is triggered if the given indicator is loaded.
                 *        Takes indicator as an argument.
                 * @param {string} errMessage
                 *        Error message that will be logged in console.
                 * @return {boolean}
                 *         Returns false when there is no required indicator loaded.
                 */
                isParentLoaded: function (indicator,
            requiredIndicator,
            type,
            callback,
            errMessage) {
                    if (indicator) {
                        return callback ? callback(indicator) : true;
                }
                error(errMessage || this.generateMessage(type, requiredIndicator));
                return false;
            },
            /**
             * @private
             * @param {string} indicatorType
             *        Indicator type
             * @param {string} required
             *        Required indicator
             * @return {string}
             *         Error message
             */
            generateMessage: function (indicatorType, required) {
                return 'Error: "' + indicatorType +
                    '" indicator type requires "' + required +
                    '" indicator loaded before. Please read docs: ' +
                    'https://api.highcharts.com/highstock/plotOptions.' +
                    indicatorType;
            }
        };

        return requiredIndicatorMixin;
    });
    _registerModule(_modules, 'Stock/Indicators/ChaikinIndicator.js', [_modules['Core/Globals.js'], _modules['Core/Utilities.js'], _modules['Mixins/IndicatorRequired.js']], function (H, U, requiredIndicator) {
        /* *
         *
         *  License: www.highcharts.com/license
         *
         *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
         *
         * */
        var correctFloat = U.correctFloat,
            error = U.error,
            seriesType = U.seriesType;
        var EMA = H.seriesTypes.ema,
            AD = H.seriesTypes.ad;
        /**
         * The Chaikin series type.
         *
         * @private
         * @class
         * @name Highcharts.seriesTypes.chaikin
         *
         * @augments Highcharts.Series
         */
        seriesType('chaikin', 'ema', 
        /**
         * Chaikin Oscillator. This series requires the `linkedTo` option to
         * be set and should be loaded after the `stock/indicators/indicators.js`
         * and `stock/indicators/ema.js`.
         *
         * @sample {highstock} stock/indicators/chaikin
         *         Chaikin Oscillator
         *
         * @extends      plotOptions.ema
         * @since        7.0.0
         * @product      highstock
         * @excluding    allAreas, colorAxis, joinBy, keys, navigatorOptions,
         *               pointInterval, pointIntervalUnit, pointPlacement,
         *               pointRange, pointStart, showInNavigator, stacking
         * @requires     stock/indicators/indicators
         * @requires     stock/indicators/ema
         * @requires     stock/indicators/chaikin
         * @optionparent plotOptions.chaikin
         */
        {
            /**
             * Paramters used in calculation of Chaikin Oscillator
             * series points.
             *
             * @excluding index, period
             */
            params: {
                /**
                 * The id of volume series which is mandatory.
                 * For example using OHLC data, volumeSeriesID='volume' means
                 * the indicator will be calculated using OHLC and volume values.
                 */
                volumeSeriesID: 'volume',
                /**
                 * Periods for Chaikin Oscillator calculations.
                 *
                 * @type    {Array<number>}
                 * @default [3, 10]
                 */
                periods: [3, 10]
            }
        }, 
        /**
         * @lends Highcharts.Series#
         */
        {
            nameBase: 'Chaikin Osc',
            nameComponents: ['periods'],
            init: function () {
                var args = arguments,
                    ctx = this;
                requiredIndicator.isParentLoaded(EMA, 'ema', ctx.type, function (indicator) {
                    indicator.prototype.init.apply(ctx, args);
                    return;
                });
            },
            getValues: function (series, params) {
                var periods = params.periods,
                    period = params.period, 
                    // Accumulation Distribution Line data
                    ADL, 
                    // 0- date, 1- Chaikin Oscillator
                    CHA = [],
                    xData = [],
                    yData = [],
                    periodsOffset, 
                    // Shorter Period EMA
                    SPE, 
                    // Longer Period EMA
                    LPE,
                    oscillator,
                    i;
                // Check if periods are correct
                if (periods.length !== 2 || periods[1] <= periods[0]) {
                    error('Error: "Chaikin requires two periods. Notice, first ' +
                        'period should be lower than the second one."');
                    return;
                }
                ADL = AD.prototype.getValues.call(this, series, {
                    volumeSeriesID: params.volumeSeriesID,
                    period: period
                });
                // Check if adl is calculated properly, if not skip
                if (!ADL) {
                    return;
                }
                SPE = EMA.prototype.getValues.call(this, ADL, {
                    period: periods[0]
                });
                LPE = EMA.prototype.getValues.call(this, ADL, {
                    period: periods[1]
                });
                // Check if ema is calculated properly, if not skip
                if (!SPE || !LPE) {
                    return;
                }
                periodsOffset = periods[1] - periods[0];
                for (i = 0; i < LPE.yData.length; i++) {
                    oscillator = correctFloat(SPE.yData[i + periodsOffset] -
                        LPE.yData[i]);
                    CHA.push([LPE.xData[i], oscillator]);
                    xData.push(LPE.xData[i]);
                    yData.push(oscillator);
                }
                return {
                    values: CHA,
                    xData: xData,
                    yData: yData
                };
            }
        });
        /**
         * A `Chaikin Oscillator` series. If the [type](#series.chaikin.type)
         * option is not specified, it is inherited from [chart.type](#chart.type).
         *
         * @extends   series,plotOptions.chaikin
         * @since     7.0.0
         * @product   highstock
         * @excluding allAreas, colorAxis, dataParser, dataURL, joinBy, keys,
         *            navigatorOptions, pointInterval, pointIntervalUnit,
         *            pointPlacement, pointRange, pointStart, stacking, showInNavigator
         * @requires  stock/indicators/indicators
         * @requires  stock/indicators/ema
         * @requires  stock/indicators/chaikin
         * @apioption series.chaikin
         */
        ''; // to include the above in the js output

    });
    _registerModule(_modules, 'masters/indicators/chaikin.src.js', [], function () {


    });
}));