添加项目文件。

Epost.TestToolsWeb/Content/code/es-modules/mixins/indicator-required.js

@@ -0,0 +1,48 @@
+/**
+ * (c) 2010-2018 Daniel Studencki
+ *
+ * License: www.highcharts.com/license
+ */
+
+'use strict';
+import H from '../parts/Globals.js';
+import '../parts/Utilities.js';
+
+var error = H.error;
+
+var requiredIndicatorMixin = {
+    /**
+     * Check whether given indicator is loaded, else throw error.
+     * @param {function} indicator Indicator constructor function.
+     * @param {string} requiredIndicator required indicator type.
+     * @param {string} type Type of indicator where function was called (parent).
+     * @param {function} 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.
+     * @returns {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;
+    },
+    generateMessage: function (indicatorType, required) {
+        return 'Error: "' + indicatorType +
+            '" indicator type requires "' + required +
+            '" indicator loaded before. Please read docs: ' +
+            'https://api.highcharts.com/highstock/plotOptions.' +
+            indicatorType;
+    }
+};
+export default requiredIndicatorMixin;