vmes-flowable/jp-bpmn-js-properties-panel/lib/helper/ButtonsHelper.js

ceshibao

'use strict';

var cmdHelper = require('./CmdHelper'),
    elementHelper = require('./ElementHelper');

var is = require('jeeplus-bpmn/lib/util/ModelUtil').is;

var ButtonsHelper = {};

var getButtons = function(bo) {
  return bo.get('buttons');
};

ButtonsHelper.getButtons = function(bo, type) {
  var buttons = getButtons(bo);
  if (typeof buttons !== 'undefined') {
    var extensionValues = buttons.get('values');
    if (typeof extensionValues !== 'undefined') {
      var elements = extensionValues.filter(function(value) {
        return is(value, type);
      });
      if (elements.length) {
        return elements;
      }
    }
  }
};

ButtonsHelper.addEntry = function(bo, element, entry, bpmnFactory) {
  var buttons = bo.get('buttons');

  // if there is no buttons list, create one
  if (!buttons) {
    // TODO: Ask Daniel which operation costs more
    buttons = elementHelper.createElement('bpmn:UserTask', { values: [entry] }, bo, bpmnFactory);
    return { buttons : buttons };
  } else {
    // add new failedJobRetryExtensionElement to existing buttons list
    return cmdHelper.addElementsTolist(element, buttons, 'values', [entry]);
  }
};

ButtonsHelper.removeEntry = function(bo, element, entry) {
  var buttons = bo.get('buttons');

  if (!buttons) {

    // return an empty command when there is no buttons list
    return {};
  }

  return cmdHelper.removeElementsFromList(element, buttons, 'values', 'buttons', [entry]);
};

module.exports = ButtonsHelper;