analytics/webcontent/bi/js/dashboard-analytics/visualizations/renderer/sequence/KeyDriversTask.js

'use strict';

/*
 *+------------------------------------------------------------------------+
 *| Licensed Materials - Property of IBM
 *| IBM Cognos Products: Dashboard
 *| (C) Copyright IBM Corp. 2018
 *|
 *| US Government Users Restricted Rights - Use, duplication or disclosure
 *| restricted by GSA ADP Schedule Contract with IBM Corp.
 *+------------------------------------------------------------------------+
 */
define(['./BaseTask', 'dashboard-analytics/visualizations/vipr/VIPRUtils'], function (BaseTask, VIPRUtils) {
	'use strict';

	var KeyDriversTask = BaseTask.extend({

		process: function process(renderContext) {
			var _this = this;

			if (this._isStepComplete(renderContext, 'keyDrivers')) {
				return Promise.resolve(renderContext);
			} else {
				return this._getPossibleDrivers(renderContext).then(function (keyDrivers) {
					_this._completeStep(renderContext, 'keyDrivers', keyDrivers);
					return renderContext;
				}).catch(function () {
					return renderContext;
				});
			}
		},

		_getPossibleDrivers: function _getPossibleDrivers(renderContext) {
			var visualization = this.content.getFeature('Visualization');
			// Only enable this step for viz types with 'supportsPossibleKeyDrivers=true'.
			if (visualization.getSlots().isMappingComplete() && VIPRUtils.doesConfigPropertyMatchExpected(visualization.getDefinition().getId(), 'supportsPossibleKeyDrivers', true)) {
				return this.visAPI.whenPossibleKeyDriversAreReady(renderContext, this._getTargetId());
			} else {
				return Promise.resolve([]);
			}
		},

		_getTargetId: function _getTargetId() {
			// We are assuming only one slot and only one data item for that slot.
			var visualization = this.content.getFeature('Visualization');
			return visualization.getSlots().getMappedSlotList()[0].getDataItemList()[0].getColumnId();
		}
	});

	return KeyDriversTask;
});
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