145 lines
4.0 KiB
JavaScript
145 lines
4.0 KiB
JavaScript
'use strict';
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var ModelUtil = require('bpmn-js/lib/util/ModelUtil'),
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is = ModelUtil.is,
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getBusinessObject = ModelUtil.getBusinessObject;
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var extensionElementsHelper = require('./ExtensionElementsHelper'),
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implementationTypeHelper = require('./ImplementationTypeHelper');
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var InputOutputHelper = {};
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module.exports = InputOutputHelper;
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function getElements(bo, type, prop) {
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var elems = extensionElementsHelper.getExtensionElements(bo, type) || [];
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return !prop ? elems : (elems[0] || {})[prop] || [];
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}
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function getParameters(element, prop, insideConnector) {
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var inputOutput = InputOutputHelper.getInputOutput(element, insideConnector);
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return (inputOutput && inputOutput.get(prop)) || [];
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}
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/**
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* Get a inputOutput from the business object
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*
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* @param {djs.model.Base} element
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* @param {boolean} insideConnector
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*
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* @return {ModdleElement} the inputOutput object
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*/
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InputOutputHelper.getInputOutput = function(element, insideConnector) {
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if (!insideConnector) {
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var bo = getBusinessObject(element);
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return (getElements(bo, 'activiti:InputOutput') || [])[0];
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}
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var connector = this.getConnector(element);
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return connector && connector.get('inputOutput');
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};
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/**
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* Get a connector from the business object
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*
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* @param {djs.model.Base} element
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*
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* @return {ModdleElement} the connector object
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*/
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InputOutputHelper.getConnector = function(element) {
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var bo = implementationTypeHelper.getServiceTaskLikeBusinessObject(element);
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return bo && (getElements(bo, 'activiti:Connector') || [])[0];
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};
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/**
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* Return all input parameters existing in the business object, and
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* an empty array if none exist.
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*
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* @param {djs.model.Base} element
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* @param {boolean} insideConnector
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*
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* @return {Array} a list of input parameter objects
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*/
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InputOutputHelper.getInputParameters = function(element, insideConnector) {
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return getParameters.apply(this, [ element, 'inputParameters', insideConnector ]);
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};
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/**
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* Return all output parameters existing in the business object, and
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* an empty array if none exist.
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*
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* @param {djs.model.Base} element
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* @param {boolean} insideConnector
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*
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* @return {Array} a list of output parameter objects
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*/
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InputOutputHelper.getOutputParameters = function(element, insideConnector) {
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return getParameters.apply(this, [ element, 'outputParameters', insideConnector ]);
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};
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/**
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* Get a input parameter from the business object at given index
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*
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* @param {djs.model.Base} element
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* @param {boolean} insideConnector
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* @param {number} idx
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*
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* @return {ModdleElement} input parameter
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*/
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InputOutputHelper.getInputParameter = function(element, insideConnector, idx) {
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return this.getInputParameters(element, insideConnector)[idx];
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};
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/**
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* Get a output parameter from the business object at given index
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*
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* @param {djs.model.Base} element
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* @param {boolean} insideConnector
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* @param {number} idx
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*
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* @return {ModdleElement} output parameter
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*/
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InputOutputHelper.getOutputParameter = function(element, insideConnector, idx) {
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return this.getOutputParameters(element, insideConnector)[idx];
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};
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/**
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* Returns 'true' if the given element supports inputOutput
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*
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* @param {djs.model.Base} element
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* @param {boolean} insideConnector
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*
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* @return {boolean} a boolean value
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*/
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InputOutputHelper.isInputOutputSupported = function(element, insideConnector) {
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if (insideConnector) {
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return true;
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}
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var bo = getBusinessObject(element);
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return (
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is(bo, 'bpmn:FlowNode') && !(
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is(bo, 'bpmn:StartEvent') ||
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is(bo, 'bpmn:Gateway') ||
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is(bo, 'bpmn:BoundaryEvent') ||
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(
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is(bo, 'bpmn:SubProcess') && bo.get('triggeredByEvent')
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)
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)
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);
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};
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/**
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* Returns 'true' if the given element supports output parameters
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*
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* @param {djs.model.Base} element
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* @param {boolean} insideConnector
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*
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* @return {boolean} a boolean value
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*/
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InputOutputHelper.areOutputParametersSupported = function(element, insideConnector) {
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var bo = getBusinessObject(element);
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return insideConnector || (!is(bo, 'bpmn:EndEvent') && !bo.loopCharacteristics);
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};
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