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| import inherits from 'inherits';
import CommandInterceptor from 'diagram-js/lib/command/CommandInterceptor';
import { is } from '../../../util/ModelUtil';
import { isAny } from '../util/ModelingUtil';
import UpdateSemanticParentHandler from '../cmd/UpdateSemanticParentHandler';
/**
* BPMN specific data store behavior
*/
export default function DataStoreBehavior(
canvas, commandStack, elementRegistry,
eventBus) {
CommandInterceptor.call(this, eventBus);
commandStack.registerHandler('dataStore.updateContainment', UpdateSemanticParentHandler);
function getFirstParticipant() {
return elementRegistry.filter(function(element) {
return is(element, 'bpmn:Participant');
})[0];
}
function getDataStores(element) {
return element.children.filter(function(child) {
return is(child, 'bpmn:DataStoreReference') && !child.labelTarget;
});
}
function updateDataStoreParent(dataStore, newDataStoreParent) {
var dataStoreBo = dataStore.businessObject || dataStore;
newDataStoreParent = newDataStoreParent || getFirstParticipant();
if (newDataStoreParent) {
var newDataStoreParentBo = newDataStoreParent.businessObject || newDataStoreParent;
commandStack.execute('dataStore.updateContainment', {
dataStoreBo: dataStoreBo,
newSemanticParent: newDataStoreParentBo.processRef || newDataStoreParentBo,
newDiParent: newDataStoreParentBo.di
});
}
}
// disable auto-resize for data stores
this.preExecute('shape.create', function(event) {
var context = event.context,
shape = context.shape;
if (is(shape, 'bpmn:DataStoreReference') &&
shape.type !== 'label') {
Iif (!context.hints) {
context.hints = {};
}
// prevent auto resizing
context.hints.autoResize = false;
}
});
// disable auto-resize for data stores
this.preExecute('elements.move', function(event) {
var context = event.context,
shapes = context.shapes;
var dataStoreReferences = shapes.filter(function(shape) {
return is(shape, 'bpmn:DataStoreReference');
});
if (dataStoreReferences.length) {
Iif (!context.hints) {
context.hints = {};
}
// prevent auto resizing for data store references
context.hints.autoResize = shapes.filter(function(shape) {
return !is(shape, 'bpmn:DataStoreReference');
});
}
});
// update parent on data store created
this.postExecute('shape.create', function(event) {
var context = event.context,
shape = context.shape,
parent = shape.parent;
if (is(shape, 'bpmn:DataStoreReference') &&
shape.type !== 'label' &&
is(parent, 'bpmn:Collaboration')) {
updateDataStoreParent(shape);
}
});
// update parent on data store moved
this.postExecute('shape.move', function(event) {
var context = event.context,
shape = context.shape,
oldParent = context.oldParent,
parent = shape.parent;
if (is(oldParent, 'bpmn:Collaboration')) {
// do nothing if not necessary
return;
}
if (is(shape, 'bpmn:DataStoreReference') &&
shape.type !== 'label' &&
is(parent, 'bpmn:Collaboration')) {
var participant = is(oldParent, 'bpmn:Participant') ?
oldParent :
getAncestor(oldParent, 'bpmn:Participant');
updateDataStoreParent(shape, participant);
}
});
// update data store parents on participant or subprocess deleted
this.postExecute('shape.delete', function(event) {
var context = event.context,
shape = context.shape,
rootElement = canvas.getRootElement();
if (isAny(shape, [ 'bpmn:Participant', 'bpmn:SubProcess' ])
&& is(rootElement, 'bpmn:Collaboration')) {
getDataStores(rootElement)
.filter(function(dataStore) {
return isDescendant(dataStore, shape);
})
.forEach(function(dataStore) {
updateDataStoreParent(dataStore);
});
}
});
// update data store parents on collaboration -> process
this.postExecute('canvas.updateRoot', function(event) {
var context = event.context,
oldRoot = context.oldRoot,
newRoot = context.newRoot;
var dataStores = getDataStores(oldRoot);
dataStores.forEach(function(dataStore) {
if (is(newRoot, 'bpmn:Process')) {
updateDataStoreParent(dataStore, newRoot);
}
});
});
}
DataStoreBehavior.$inject = [
'canvas',
'commandStack',
'elementRegistry',
'eventBus',
];
inherits(DataStoreBehavior, CommandInterceptor);
// helpers //////////
function isDescendant(descendant, ancestor) {
var descendantBo = descendant.businessObject || descendant,
ancestorBo = ancestor.businessObject || ancestor;
while (descendantBo.$parent) {
Eif (descendantBo.$parent === ancestorBo.processRef || ancestorBo) {
return true;
}
descendantBo = descendantBo.$parent;
}
return false;
}
function getAncestor(element, type) {
while (element.parent) {
Eif (is(element.parent, type)) {
return element.parent;
}
element = element.parent;
}
} |