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

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'use strict';
var inherits = require('inherits');
var CommandInterceptor = require('diagram-js/lib/command/CommandInterceptor');
function RemoveElementBehavior(eventBus, bpmnRules, modeling) {
CommandInterceptor.call(this, eventBus);
/**
* Combine sequence flows when deleting an element
* if there is one incoming and one outgoing
* sequence flow
*/
this.preExecute('shape.delete', function(e) {
var shape = e.context.shape;
if (shape.incoming.length == 1 && shape.outgoing.length == 1) {
var inConnection = shape.incoming[0],
outConnection = shape.outgoing[0];
var docking = outConnection.waypoints[outConnection.waypoints.length - 1];
if (bpmnRules.canConnect(inConnection.source, outConnection.target, inConnection)) {
modeling.reconnectEnd(inConnection, outConnection.target, docking);
}
}
});
}
inherits(RemoveElementBehavior, CommandInterceptor);
RemoveElementBehavior.$inject = [ 'eventBus', 'bpmnRules', 'modeling' ];
module.exports = RemoveElementBehavior;