57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
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import { getNewShapePosition } from '../../auto-place/AutoPlaceUtil';
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import { getMid } from 'diagram-js/lib/layout/LayoutUtil';
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import { is } from '../../../util/ModelUtil';
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export default function AutoPlaceBehavior(eventBus, gridSnapping) {
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eventBus.on('autoPlace', function(context) {
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var source = context.source,
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sourceMid = getMid(source),
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shape = context.shape;
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var position = getNewShapePosition(source, shape);
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[ 'x', 'y' ].forEach(function(axis) {
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var options = {};
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// do not snap if x/y equal
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if (position[ axis ] === sourceMid[ axis ]) {
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return;
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}
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if (position[ axis ] > sourceMid[ axis ]) {
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options.min = position[ axis ];
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} else {
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options.max = position[ axis ];
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}
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if (is(shape, 'bpmn:TextAnnotation')) {
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if (isHorizontal(axis)) {
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options.offset = -shape.width / 2;
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} else {
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options.offset = -shape.height / 2;
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}
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}
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position[ axis ] = gridSnapping.snapValue(position[ axis ], options);
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});
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// must be returned to be considered by auto place
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return position;
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});
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}
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AutoPlaceBehavior.$inject = [
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'eventBus',
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'gridSnapping'
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];
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// helpers //////////
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function isHorizontal(axis) {
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return axis === 'x';
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}
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