i want to connect custom element to custom element by bpmn:SequenceFlow or bpmn:MessageFlow.
There is an error like that when i implement like that.
function canConnect(source, target) {
// only judge about custom elements
if (!isCustom(source) && !isCustom(target)) {
return;
}
// allow connection between custom shape and task
if (isCustom(source)) {
if (is(target, 'bpmn:Task')) {
return { type: 'bpmn:SequenceFlow' };
} else {
return false;
}
} else if (isCustom(target)) {
if (is(source, 'bpmn:Task')) {
return { type: 'custom:connection' };
} else {
return false;
}
}
}
How do I implement what I want??