dmn-js-literal-expression/lib/features/modeling/Modeling.js

A literal expression view for dmn-js

import { forEach } from 'min-dash';
import UpdatePropertiesHandler from 'dmn-js-shared/lib/features/modeling/cmd/UpdatePropertiesHandler';
export default class Modeling {
  constructor(commandStack, viewer, eventBus) {
    this._commandStack = commandStack;
    this._viewer = viewer;
    this._eventBus = eventBus;
    eventBus.on('viewer.init', () => {
      // register modeling handlers
      registerHandlers(this.getHandlers(), commandStack);
    });
  }
  getHandlers() {
    return Modeling._getHandlers();
  }
  static _getHandlers() {
    return {
      'element.updateProperties': UpdatePropertiesHandler
    };
  }
  getDecision() {
    return this._viewer.getDecision();
  }
  editDecisionName(name) {
    const decision = this.getDecision();
    const context = {
      element: decision,
      properties: {
        name
      }
    };
    this._commandStack.execute('element.updateProperties', context);
  }
  editDecisionId(id) {
    const decision = this.getDecision();
    const context = {
      element: decision,
      properties: {
        id
      }
    };
    this._commandStack.execute('element.updateProperties', context);
  }
  editLiteralExpressionText(text) {
    const decision = this.getDecision(),
      literalExpression = decision.decisionLogic;
    const context = {
      element: literalExpression,
      properties: {
        text
      }
    };
    this._commandStack.execute('element.updateProperties', context);
  }
  editExpressionLanguage(expressionLanguage) {
    const decision = this.getDecision(),
      literalExpression = decision.decisionLogic;
    const context = {
      element: literalExpression,
      properties: {
        expressionLanguage
      }
    };
    this._commandStack.execute('element.updateProperties', context);
  }
  editVariableName(name) {
    const decision = this.getDecision(),
      variable = decision.variable;
    const context = {
      element: variable,
      properties: {
        name
      }
    };
    this._commandStack.execute('element.updateProperties', context);
  }
  editVariableType(typeRef) {
    const decision = this.getDecision(),
      variable = decision.variable;
    const context = {
      element: variable,
      properties: {
        typeRef
      }
    };
    this._commandStack.execute('element.updateProperties', context);
  }
  updateProperties(el, props) {
    const context = {
      element: el,
      properties: props
    };
    this._commandStack.execute('element.updateProperties', context);
  }
}
Modeling.$inject = ['commandStack', 'viewer', 'eventBus'];

// helpers //////////////////////

/**
 * Register handlers with the command stack
 *
 * @param {Object} handlers { id -> Handler } map
 * @param {CommandStack} commandStack
 */
function registerHandlers(handlers, commandStack) {
  forEach(handlers, function (handler, id) {
    commandStack.registerHandler(id, handler);
  });
}
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