81 lines
1.8 KiB
JavaScript
81 lines
1.8 KiB
JavaScript
'use strict';
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var getMid = require('diagram-js/lib/layout/LayoutUtil').getMid;
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var lineIntersect = require('./util/LineIntersect');
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/**
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* Fix broken dockings after DI imports.
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*
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* @param {EventBus} eventBus
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*/
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function ImportDockingFix(eventBus) {
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function adjustDocking(startPoint, nextPoint, elementMid) {
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var elementTop = {
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x: elementMid.x,
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y: elementMid.y - 50
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};
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var elementLeft = {
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x: elementMid.x - 50,
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y: elementMid.y
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};
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var verticalIntersect = lineIntersect(startPoint, nextPoint, elementMid, elementTop),
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horizontalIntersect = lineIntersect(startPoint, nextPoint, elementMid, elementLeft);
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// original is horizontal or vertical center cross intersection
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var centerIntersect;
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if (verticalIntersect && horizontalIntersect) {
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if (getDistance(verticalIntersect, elementMid) > getDistance(horizontalIntersect, elementMid)) {
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centerIntersect = horizontalIntersect;
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} else {
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centerIntersect = verticalIntersect;
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}
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} else {
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centerIntersect = verticalIntersect || horizontalIntersect;
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}
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startPoint.original = centerIntersect;
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}
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function fixDockings(connection) {
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var waypoints = connection.waypoints;
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adjustDocking(
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waypoints[0],
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waypoints[1],
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getMid(connection.source)
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);
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adjustDocking(
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waypoints[waypoints.length - 1],
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waypoints[waypoints.length - 2],
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getMid(connection.target)
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);
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}
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eventBus.on('bpmnElement.added', function(e) {
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var element = e.element;
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if (element.waypoints) {
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fixDockings(element);
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}
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});
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}
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ImportDockingFix.$inject = [ 'eventBus' ];
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module.exports = ImportDockingFix;
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/////// helpers //////////////////////////////////
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function getDistance(p1, p2) {
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return Math.sqrt(Math.pow(p1.x - p2.x, 2) + Math.pow(p1.y - p2.y, 2));
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} |