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

108 lines
3.0 KiB
JavaScript

'use strict';
var inherits = require('inherits');
var CommandInterceptor = require('diagram-js/lib/command/CommandInterceptor');
var forEach = require('lodash/collection/forEach');
var isEventSubProcess = require('../../../util/DiUtil').isEventSubProcess;
var is = require('../../../util/ModelUtil').is;
/**
* Defines the behaviour of what happens to the elements inside a container
* that morphs into another BPMN element
*/
function ReplaceElementBehaviour(eventBus, bpmnReplace, bpmnRules, elementRegistry, selection, modeling) {
CommandInterceptor.call(this, eventBus);
this._bpmnReplace = bpmnReplace;
this._elementRegistry = elementRegistry;
this._selection = selection;
this._modeling = modeling;
this.postExecuted([ 'elements.move' ], 500, function(event) {
var context = event.context,
target = context.newParent,
newHost = context.newHost,
elements = [];
forEach(context.closure.topLevel, function(topLevelElements) {
if (isEventSubProcess(topLevelElements)) {
elements = elements.concat(topLevelElements.children);
} else {
elements = elements.concat(topLevelElements);
}
});
// Change target to host when the moving element is a `bpmn:BoundaryEvent`
if (elements.length === 1 && newHost) {
target = newHost;
}
var canReplace = bpmnRules.canReplace(elements, target);
if (canReplace) {
this.replaceElements(elements, canReplace.replacements, newHost);
}
}, this);
// update attachments if the host is replaced
this.postExecute([ 'shape.replace' ], 1500, function(e) {
var context = e.context,
oldShape = context.oldShape,
newShape = context.newShape,
attachers = oldShape.attachers,
canReplace;
if (attachers && attachers.length) {
canReplace = bpmnRules.canReplace(attachers, newShape);
this.replaceElements(attachers, canReplace.replacements);
}
}, this);
}
inherits(ReplaceElementBehaviour, CommandInterceptor);
ReplaceElementBehaviour.prototype.replaceElements = function(elements, newElements, newHost) {
var elementRegistry = this._elementRegistry,
bpmnReplace = this._bpmnReplace,
selection = this._selection,
modeling = this._modeling;
forEach(newElements, function(replacement) {
var newElement = {
type: replacement.newElementType
};
var oldElement = elementRegistry.get(replacement.oldElementId);
if (newHost && is(oldElement, 'bpmn:BoundaryEvent')) {
modeling.updateAttachment(oldElement, null);
}
var idx = elements.indexOf(oldElement);
elements[idx] = bpmnReplace.replaceElement(oldElement, newElement, { select: false });
if (newHost && is(elements[idx], 'bpmn:BoundaryEvent')) {
modeling.updateAttachment(elements[idx], newHost);
}
});
if (newElements) {
selection.select(elements);
}
};
ReplaceElementBehaviour.$inject = [ 'eventBus', 'bpmnReplace', 'bpmnRules', 'elementRegistry',
'selection', 'modeling' ];
module.exports = ReplaceElementBehaviour;