116 lines
3.1 KiB
JavaScript
116 lines
3.1 KiB
JavaScript
import { getLanesRoot } from '../util/LaneUtil';
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import { is } from '../../../util/ModelUtil';
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import { isAny } from '../util/ModelingUtil';
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var HIGH_PRIORITY = 1500;
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var HIGHEST_PRIORITY = 2000;
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/**
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* Correct hover targets in certain situations to improve diagram interaction.
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*
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* @param {ElementRegistry} elementRegistry
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* @param {EventBus} eventBus
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* @param {Canvas} canvas
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*/
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export default function FixHoverBehavior(elementRegistry, eventBus, canvas) {
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eventBus.on([
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'create.hover',
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'create.move',
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'create.end',
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'shape.move.hover',
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'shape.move.move',
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'shape.move.end'
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], HIGH_PRIORITY, function(event) {
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var context = event.context,
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shape = context.shape || event.shape,
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hover = event.hover;
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// ensure elements are not dropped onto a bpmn:Lane but onto
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// the underlying bpmn:Participant
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if (is(hover, 'bpmn:Lane') && !isAny(shape, [ 'bpmn:Lane', 'bpmn:Participant' ])) {
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event.hover = getLanesRoot(hover);
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event.hoverGfx = elementRegistry.getGraphics(event.hover);
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}
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var rootElement = canvas.getRootElement();
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// ensure bpmn:Group and label elements are dropped
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// always onto the root
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if (hover !== rootElement && (shape.labelTarget || is(shape, 'bpmn:Group'))) {
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event.hover = rootElement;
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event.hoverGfx = elementRegistry.getGraphics(event.hover);
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}
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});
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eventBus.on([
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'connect.hover',
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'connect.out',
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'connect.end',
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'connect.cleanup',
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'global-connect.hover',
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'global-connect.out',
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'global-connect.end',
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'global-connect.cleanup'
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], HIGH_PRIORITY, function(event) {
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var hover = event.hover;
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// ensure connections start/end on bpmn:Participant,
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// not the underlying bpmn:Lane
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if (is(hover, 'bpmn:Lane')) {
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event.hover = getLanesRoot(hover) || hover;
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event.hoverGfx = elementRegistry.getGraphics(event.hover);
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}
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});
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eventBus.on([
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'bendpoint.move.hover'
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], HIGH_PRIORITY, function(event) {
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var context = event.context,
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hover = event.hover,
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type = context.type;
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// ensure reconnect start/end on bpmn:Participant,
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// not the underlying bpmn:Lane
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if (is(hover, 'bpmn:Lane') && /reconnect/.test(type)) {
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event.hover = getLanesRoot(hover) || hover;
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event.hoverGfx = elementRegistry.getGraphics(event.hover);
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}
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});
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eventBus.on([
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'connect.start'
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], HIGH_PRIORITY, function(event) {
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var context = event.context,
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start = context.start;
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// ensure connect start on bpmn:Participant,
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// not the underlying bpmn:Lane
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if (is(start, 'bpmn:Lane')) {
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context.start = getLanesRoot(start) || start;
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}
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});
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// allow movement of participants from lanes
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eventBus.on('shape.move.start', HIGHEST_PRIORITY, function(event) {
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var shape = event.shape;
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if (is(shape, 'bpmn:Lane')) {
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event.shape = getLanesRoot(shape) || shape;
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}
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});
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}
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FixHoverBehavior.$inject = [
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'elementRegistry',
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'eventBus',
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'canvas'
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]; |