添加项目文件。

Epost.TestToolsWeb/Content/code/es-modules/mixins/derived-series.js

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+'use strict';
+
+import H from '../parts/Globals.js';
+import '../parts/Series.js';
+
+var Series = H.Series,
+    addEvent = H.addEvent,
+    noop = H.noop;
+
+
+/* ************************************************************************** *
+ *
+ * DERIVED SERIES MIXIN
+ *
+ * ************************************************************************** */
+
+/**
+ * Provides methods for auto setting/updating series data based on the based
+ * series data.
+ *
+ * @private
+ * @mixin derivedSeriesMixin
+ */
+var derivedSeriesMixin = {
+    /**
+     * Initialise series
+     *
+     * @private
+     * @function derivedSeriesMixin.init
+     */
+    init: function () {
+        Series.prototype.init.apply(this, arguments);
+
+        this.initialised = false;
+        this.baseSeries = null;
+        this.eventRemovers = [];
+
+        this.addEvents();
+    },
+
+    /**
+     * Method to be implemented - inside the method the series has already
+     * access to the base series via m `this.baseSeries` and the bases data is
+     * initialised. It should return data in the format accepted by
+     * `Series.setData()` method
+     *
+     * @private
+     * @function derivedSeriesMixin.setDerivedData
+     *
+     * @return {Array<*>}
+     *         An array of data
+     */
+    setDerivedData: noop,
+
+    /**
+     * Sets base series for the series
+     *
+     * @private
+     * @function derivedSeriesMixin.setBaseSeries
+     */
+    setBaseSeries: function () {
+        var chart = this.chart,
+            baseSeriesOptions = this.options.baseSeries,
+            baseSeries =
+        baseSeriesOptions &&
+        (chart.series[baseSeriesOptions] || chart.get(baseSeriesOptions));
+
+        this.baseSeries = baseSeries || null;
+    },
+
+    /**
+     * Adds events for the series
+     *
+     * @private
+     * @function derivedSeriesMixin.addEvents
+     */
+    addEvents: function () {
+        var derivedSeries = this,
+            chartSeriesLinked;
+
+        chartSeriesLinked = addEvent(
+            this.chart,
+            'afterLinkSeries',
+            function () {
+                derivedSeries.setBaseSeries();
+
+                if (derivedSeries.baseSeries && !derivedSeries.initialised) {
+                    derivedSeries.setDerivedData();
+                    derivedSeries.addBaseSeriesEvents();
+                    derivedSeries.initialised = true;
+                }
+            }
+        );
+
+        this.eventRemovers.push(
+            chartSeriesLinked
+        );
+    },
+
+    /**
+     * Adds events to the base series - it required for recalculating the data
+     * in the series if the base series is updated / removed / etc.
+     *
+     * @private
+     * @function derivedSeriesMixin.addBaseSeriesEvents
+     */
+    addBaseSeriesEvents: function () {
+        var derivedSeries = this,
+            updatedDataRemover,
+            destroyRemover;
+
+        updatedDataRemover = addEvent(
+            derivedSeries.baseSeries,
+            'updatedData',
+            function () {
+                derivedSeries.setDerivedData();
+            }
+        );
+
+        destroyRemover = addEvent(
+            derivedSeries.baseSeries,
+            'destroy',
+            function () {
+                derivedSeries.baseSeries = null;
+                derivedSeries.initialised = false;
+            }
+        );
+
+        derivedSeries.eventRemovers.push(
+        updatedDataRemover,
+        destroyRemover
+      );
+    },
+
+    /**
+     * Destroys the series
+     *
+     * @private
+     * @function derivedSeriesMixin.destroy
+     */
+    destroy: function () {
+        this.eventRemovers.forEach(function (remover) {
+            remover();
+        });
+
+        Series.prototype.destroy.apply(this, arguments);
+    }
+};
+
+export default derivedSeriesMixin;