bpmn-js/lib/features/modeling/behavior/AttachEventBehavior.js

99 lines
2.3 KiB
JavaScript

import inherits from 'inherits';
import CommandInterceptor from 'diagram-js/lib/command/CommandInterceptor';
import { getBusinessObject } from '../../../util/ModelUtil';
import { isAny } from '../util/ModelingUtil';
import { isLabel } from '../../../util/LabelUtil';
var LOW_PRIORITY = 500;
/**
* Replace intermediate event with boundary event when creating or moving results in attached event.
*/
export default function AttachEventBehavior(bpmnReplace, injector) {
injector.invoke(CommandInterceptor, this);
this._bpmnReplace = bpmnReplace;
var self = this;
this.postExecuted('elements.create', LOW_PRIORITY, function(context) {
var elements = context.elements;
elements = elements.filter(function(shape) {
var host = shape.host;
return shouldReplace(shape, host);
});
if (elements.length !== 1) {
return;
}
elements.map(function(element) {
return elements.indexOf(element);
}).forEach(function(index) {
var host = elements[ index ];
context.elements[ index ] = self.replaceShape(elements[ index ], host);
});
}, true);
this.preExecute('elements.move', LOW_PRIORITY, function(context) {
var shapes = context.shapes,
host = context.newHost;
if (shapes.length !== 1) {
return;
}
var shape = shapes[0];
if (shouldReplace(shape, host)) {
context.shapes = [ self.replaceShape(shape, host) ];
}
}, true);
}
AttachEventBehavior.$inject = [
'bpmnReplace',
'injector'
];
inherits(AttachEventBehavior, CommandInterceptor);
AttachEventBehavior.prototype.replaceShape = function(shape, host) {
var eventDefinition = getEventDefinition(shape);
var boundaryEvent = {
type: 'bpmn:BoundaryEvent',
host: host
};
if (eventDefinition) {
boundaryEvent.eventDefinitionType = eventDefinition.$type;
}
return this._bpmnReplace.replaceElement(shape, boundaryEvent, { layoutConnection: false });
};
// helpers //////////
function getEventDefinition(element) {
var businessObject = getBusinessObject(element),
eventDefinitions = businessObject.eventDefinitions;
return eventDefinitions && eventDefinitions[0];
}
function shouldReplace(shape, host) {
return !isLabel(shape) &&
isAny(shape, [ 'bpmn:IntermediateThrowEvent', 'bpmn:IntermediateCatchEvent' ]) && !!host;
}