116 lines
2.5 KiB
JavaScript
116 lines
2.5 KiB
JavaScript
'use strict';
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var inherits = require('inherits');
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var isBpmn = require('../../../lib/util/ModelUtil').is;
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var CommandInterceptor = require('diagram-js/lib/command/CommandInterceptor');
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function isCustom(element, type) {
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if (!type) {
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return /custom:/.test(element.type);
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}
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return element && element.type === type;
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}
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function ifCustomElement(fn) {
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return function(event) {
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var context = event.context,
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element = context.shape || context.connection;
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if (!isBpmn(element, 'bpmn:BaseElement')) {
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fn(event);
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}
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};
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}
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/**
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* A handler responsible for updating the custom element's businessObject
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* once changes on the diagram happen
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*/
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function CustomUpdater(eventBus, modeling) {
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CommandInterceptor.call(this, eventBus);
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function updateTriangle(evt) {
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var context = evt.context,
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shape = context.shape,
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businessObject = shape.businessObject,
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leader = businessObject.leader,
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companions,
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parent,
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idx;
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if (!isCustom(shape, 'custom:triangle')) {
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return;
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}
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parent = shape.parent;
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if (!parent) {
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return;
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}
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if (isBpmn(parent, 'bpmn:SubProcess')) {
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shape.businessObject.foo = 'geil';
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}
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if (!isBpmn(parent, 'bpmn:SubProcess')) {
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shape.businessObject.foo = 'bar';
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}
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if (isCustom(parent, 'custom:circle')) {
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shape.businessObject.leader = parent;
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if (!parent.businessObject.companions) {
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parent.businessObject.companions = [];
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}
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parent.businessObject.companions.push(shape);
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}
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if (!isCustom(parent, 'custom:circle') && leader) {
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companions = leader.businessObject.companions;
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idx = companions.indexOf(shape);
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companions.splice(idx, 1);
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businessObject.leader = '';
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}
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}
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this.executed([
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'shape.move',
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'shape.create'
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], ifCustomElement(updateTriangle));
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/**
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* When morphing a Process into a Collaboration or vice-versa,
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* make sure that the existing custom elements get their parents updated.
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*/
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function updateCustomElementsRoot(event) {
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var context = event.context,
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oldRoot = context.oldRoot,
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newRoot = context.newRoot,
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children = oldRoot.children;
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var customChildren = children.filter(isCustom);
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if (customChildren.length) {
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modeling.moveElements(customChildren, { x: 0, y: 0 }, newRoot);
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}
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}
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this.postExecute('canvas.updateRoot', updateCustomElementsRoot);
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}
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inherits(CustomUpdater, CommandInterceptor);
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module.exports = CustomUpdater;
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CustomUpdater.$inject = [ 'eventBus', 'modeling' ];
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